{"id":504,"date":"2026-07-30T06:18:12","date_gmt":"2026-07-30T06:18:12","guid":{"rendered":"https:\/\/oxygen-compressor-machine.com\/?post_type=product&#038;p=504"},"modified":"2026-07-30T06:18:21","modified_gmt":"2026-07-30T06:18:21","slug":"dw-300-1-5-oil-free-low-pressure-air-compressor","status":"publish","type":"product","link":"https:\/\/oxygen-compressor-machine.com\/tr\/urun\/dw-300-1-5-oil-free-low-pressure-air-compressor\/","title":{"rendered":"DW-300\/1.5 Oil-Free Low-Pressure Air Compressor"},"content":{"rendered":"<div style=\"margin-bottom: 70px;\">\n<h2 style=\"color: #111827; font-size: 2.3em; border-bottom: 4px solid #1A5C9A; padding-bottom: 15px; margin-bottom: 35px;\">1. The Macro-Economics of Mega-Volume Low-Pressure Air (1.5 Bar)<\/h2>\n<p style=\"margin-bottom: 25px; font-size: 1.15em; text-align: justify; color: #374151;\">In the highly complex macroeconomic landscape of modern heavy industry, a critical inefficiency has historically plagued manufacturing facilities: the gross misuse of high-pressure utility air for low-pressure applications. Traditional industrial complexes generally operate around a standard 0.7 MPa to 1.0 MPa (7 to 10 bar) centralized pneumatic grid. However, numerous massively energy-intensive processes\u2014such as deep-vat biological fermentation, large-scale pneumatic powder conveying (like PTA, flour, or cement), high-speed textile air-jet looms, and heavy municipal wastewater aeration\u2014strictly require immense volumes of air at significantly lower pressures, typically around 0.15 MPa (1.5 bar).<\/p>\n<p style=\"margin-bottom: 25px; font-size: 1.15em; text-align: justify; color: #374151;\">Historically, many engineering procurement teams attempted to solve this by purchasing standard 7-bar compressors and aggressively throttling or regulating the pressure down to 1.5 bar at the point of use. According to the foundational laws of thermodynamics and fluid mechanics, this approach is mathematically and financially ruinous. Compressing atmospheric air to 7 bar only to immediately expand it back to 1.5 bar wastes staggering amounts of electrical kinetic energy\u2014often resulting in a 40% to 60% loss in total energy efficiency. When processing a colossal volume like 300 cubic meters per minute (18,000 Nm\u00b3\/h), this artificial pressure-drop inefficiency translates directly into hundreds of thousands of dollars in wasted operational electricity expenditures (OPEX) every single fiscal quarter.<\/p>\n<p style=\"margin-bottom: 25px; font-size: 1.15em; text-align: justify; color: #374151;\">The DW-300\/1.5 Oil-Free Low-Pressure Air Compressor represents a radical, purpose-built engineering paradigm shift. By physically designing the machine&#8217;s cylinder bore geometries, massive valve flow areas, and stroke lengths specifically for a terminal 1.5-bar discharge, the compressor uses exactly the required electrical power to overcome the low-pressure resistance and not a single kilowatt more. Furthermore, because these low-pressure applications almost universally intersect with deeply sensitive biological, pharmaceutical, or food-grade materials, the DW-300\/1.5 guarantees absolute, uncompromising ISO 8573-1 Class 0 oil-free purity. A single microscopic drop of hydrocarbon lubricant aerosolizing into a 1.5-bar pneumatic conveying line could instantly contaminate an entire silo of powdered milk, ruin a pharmaceutical biosynthesis batch, or permanently blind expensive textile weaving equipment. This heavy-duty machine removes the risk of contamination entirely while maximizing massive-scale thermodynamic efficiency.<\/p>\n<div style=\"text-align: center; margin: 55px 0;\">\n<p><img decoding=\"async\" style=\"max-width: 100%; height: auto; border-radius: 12px; box-shadow: 0 15px 40px rgba(0,0,0,0.15);\" src=\"https:\/\/oxygen-compressor-machine.com\/wp-content\/uploads\/2026\/07\/DW-300-1.5-Oil-Free-Low-Pressure-Air-Compressor.webp\" alt=\"DW-300\/1.5 Mega-Capacity Low-Pressure Oil-Free Process Air Compressor showing massive cylinder heads and heavy-duty balanced frame\" \/><\/p>\n<p style=\"font-size: 1.05em; color: #6b7280; margin-top: 15px; font-style: italic;\">Figure 1: The immense DW-300\/1.5 Heavy-Duty Assembly. Purpose-built from the ground up for massive volumetric throughput (18,000 Nm\u00b3\/h) at a highly efficient, strictly regulated 1.5 bar (0.15 MPa) low-pressure threshold.<\/p>\n<\/div>\n<\/div>\n<p><!-- Section 2: Comprehensive Technical Specifications --><\/p>\n<div style=\"margin-bottom: 70px; background-color: #f8fafc; padding: 50px; border-radius: 16px; border: 1px solid #E2E8F0; box-shadow: 0 6px 20px rgba(0,0,0,0.03);\">\n<h2 style=\"color: #111827; font-size: 2.3em; border-bottom: 4px solid #1A5C9A; padding-bottom: 15px; margin-bottom: 35px;\">2. Exhaustive Technical Specifications &amp; 1.5-Bar Operating Envelope<\/h2>\n<p style=\"margin-bottom: 30px; font-size: 1.15em; color: #374151; line-height: 1.85; text-align: justify;\">Managing a staggering 18,000 cubic meters of gas per hour requires structural components of immense physical scale. To achieve 300 Nm\u00b3\/min without inducing destructive supersonic gas velocities within the machine, the intake manifolds, cylinder bores, and discharge piping must be radically oversized. This specific low-pressure, extreme-volume ratio dictates a highly specialized electrical powertrain, generally commanding a main induction motor ranging from 500 kW to 630 kW. The following comprehensive technical parameters deeply define the uncompromising operational boundaries of the flagship DW-300\/1.5 model.<\/p>\n<div style=\"overflow-x: auto; background: #ffffff; border-radius: 12px; box-shadow: 0 8px 24px rgba(0,0,0,0.06); border: 1px solid #E5E7EB;\">\n<table style=\"width: 100%; min-width: 850px; border-collapse: collapse; text-align: left; font-size: 1.15em;\">\n<thead>\n<tr style=\"background-color: #1a5c9a; color: #ffffff;\">\n<th style=\"padding: 22px; border: 1px solid #ddd; font-weight: bold; width: 40%; text-transform: uppercase; letter-spacing: 0.5px;\">Technical Parameter<\/th>\n<th style=\"padding: 22px; border: 1px solid #ddd; font-weight: bold; width: 60%; text-transform: uppercase; letter-spacing: 0.5px;\">Nominal Value \/ Engineering Specification<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr style=\"background-color: #f9fafb;\">\n<td style=\"padding: 22px; border: 1px solid #E5E7EB; font-weight: bold; color: #374151;\">Model Designation Architecture<\/td>\n<td style=\"padding: 22px; border: 1px solid #E5E7EB; color: #111827;\">DW-300\/1.5 (Mega-Volume Low-Pressure Process Series)<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 22px; border: 1px solid #E5E7EB; font-weight: bold; color: #374151;\">Approved Compression Medium<\/td>\n<td style=\"padding: 22px; border: 1px solid #E5E7EB; color: #111827; font-weight: bold;\">Atmospheric Process Air, High-Volume Nitrogen (N\u2082)<\/td>\n<\/tr>\n<tr style=\"background-color: #f9fafb;\">\n<td style=\"padding: 22px; border: 1px solid #E5E7EB; font-weight: bold; color: #374151;\">Volumetric Flow Rate (Capacity)<\/td>\n<td style=\"padding: 22px; border: 1px solid #E5E7EB; color: #1a5c9a; font-weight: 900; font-size: 1.15em;\">300.0 Nm\u00b3\/min (18,000 Nm\u00b3\/hour) &#8211; Continuous Baseload Duty<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 22px; border: 1px solid #E5E7EB; font-weight: bold; color: #374151;\">Nominal Suction (Inlet) Pressure<\/td>\n<td style=\"padding: 22px; border: 1px solid #E5E7EB; color: #111827; font-weight: bold;\">Atmospheric (0.1 MPa absolute) with Mega-Scale Filtration<\/td>\n<\/tr>\n<tr style=\"background-color: #f9fafb;\">\n<td style=\"padding: 22px; border: 1px solid #E5E7EB; font-weight: bold; color: #374151;\">Target Discharge Pressure<\/td>\n<td style=\"padding: 22px; border: 1px solid #E5E7EB; color: #e8440a; font-weight: 900; font-size: 1.15em;\">0.15 MPa (1.5 bar \/ approx. 21.7 psi gauge)<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 22px; border: 1px solid #E5E7EB; font-weight: bold; color: #374151;\">Thermodynamic Architecture<\/td>\n<td style=\"padding: 22px; border: 1px solid #E5E7EB; color: #111827;\">Massive Parallel Single-Stage Compression for Ultimate Flow<\/td>\n<\/tr>\n<tr style=\"background-color: #f9fafb;\">\n<td style=\"padding: 22px; border: 1px solid #E5E7EB; font-weight: bold; color: #374151;\">Kinematic Frame &amp; Layout<\/td>\n<td style=\"padding: 22px; border: 1px solid #E5E7EB; color: #111827;\">Heavy-Duty DW-Type (Symmetrical Balanced-Opposed Horizontal)<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 22px; border: 1px solid #E5E7EB; font-weight: bold; color: #374151;\">Air Purity Certification<\/td>\n<td style=\"padding: 22px; border: 1px solid #E5E7EB; color: #111827;\">ISO 8573-1 Class 0 (100% Absolutely Oil-Free via physical isolation)<\/td>\n<\/tr>\n<tr style=\"background-color: #f9fafb;\">\n<td style=\"padding: 22px; border: 1px solid #E5E7EB; font-weight: bold; color: #374151;\">Thermal Management Protocol<\/td>\n<td style=\"padding: 22px; border: 1px solid #E5E7EB; color: #111827;\">Heavy-Duty Shell-and-Tube Industrial Water Cooling System<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 22px; border: 1px solid #E5E7EB; font-weight: bold; color: #374151;\">Valve Technology Matrix<\/td>\n<td style=\"padding: 22px; border: 1px solid #E5E7EB; color: #111827;\">Oversized Low-Resistance PEEK Polymer Plates (Minimizes \u2206P)<\/td>\n<\/tr>\n<tr style=\"background-color: #f9fafb;\">\n<td style=\"padding: 22px; border: 1px solid #E5E7EB; font-weight: bold; color: #374151;\">Main Drive Motor Power<\/td>\n<td style=\"padding: 22px; border: 1px solid #E5E7EB; color: #111827; font-weight: bold;\">500 kW to 630 kW (Synchronized via standard Medium-Voltage VFD)<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 22px; border: 1px solid #E5E7EB; font-weight: bold; color: #374151;\">Manufacturing Compliance Codes<\/td>\n<td style=\"padding: 22px; border: 1px solid #E5E7EB; color: #111827;\">API-618 (structural dynamics), CE Machinery Directive, ISO 9001<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p style=\"margin-top: 30px; font-size: 1.1em; color: #4b5563; font-style: italic; background-color: #fef3c7; padding: 25px; border-left: 6px solid #F59E0B; border-radius: 8px; text-align: justify; line-height: 1.75;\"><strong>Fluid Dynamics Intake Advisory:<\/strong> Pulling 300 cubic meters of air from the atmosphere every sixty seconds acts as a localized vacuum phenomenon. The intake filtration housing must be massive, strategically located outdoors, and shielded from industrial exhaust. If the intake filters become fouled, the pressure drop before the air even enters the cylinders will severely throttle the 18,000 Nm\u00b3\/h capacity, directly mimicking a highly restrictive high-altitude environment and drastically increasing specific power consumption.<\/p>\n<\/div>\n<p><!-- Section 3: The Physics of DW-Type Parallel Compression --><\/p>\n<div style=\"margin-bottom: 70px;\">\n<h2 style=\"color: #111827; font-size: 2.3em; border-bottom: 4px solid #1A5C9A; padding-bottom: 15px; margin-bottom: 35px;\">3. The Physics of DW-Type Mega-Volume Parallel Compression<\/h2>\n<p style=\"margin-bottom: 25px; font-size: 1.15em; text-align: justify; line-height: 1.85; color: #374151;\">To visually comprehend the mechanical scale of the DW-300\/1.5, one must understand the sheer physics of volume. While a high-pressure compressor uses multiple stages of decreasing cylinder sizes to squeeze a small volume into a dense state, this low-pressure machine does the exact opposite. It must forcefully capture and move an incredibly massive physical volume of air. To achieve 18,000 Nm\u00b3\/h in a reciprocating design, the unit completely abandons sequential multi-staging. Instead, it utilizes a <strong>Massive Parallel Single-Stage Architecture<\/strong>. All of the exceptionally large cylinder bores operate simultaneously, drawing in atmospheric air and compressing it directly to 1.5 bar in a single stroke, before converging the massive flow into a singular, colossal discharge header.<\/p>\n<p style=\"margin-bottom: 25px; font-size: 1.15em; text-align: justify; line-height: 1.85; color: #374151;\">Driving multiple, radically oversized pistons horizontally creates an astonishing level of internal mechanical inertia. If these massive cast steel and PTFE pistons were not perfectly harmonized, the resulting kinetic vibration would literally tear the machine from its concrete foundation within hours. This is why the unit is constructed on our elite <strong>DW-Type Symmetrical Balanced-Opposed Kinematic Framework<\/strong>.<\/p>\n<div style=\"text-align: center; margin: 55px 0;\">\n<p><img decoding=\"async\" style=\"max-width: 100%; height: auto; border-radius: 12px; box-shadow: 0 12px 35px rgba(0,0,0,0.15);\" src=\"https:\/\/oxygen-compressor-machine.com\/wp-content\/uploads\/2026\/07\/Oil-free-air-compressor-at-the-user-site-1.webp\" alt=\"Heavy-duty DW-Type oil-free air compressor structural frame highlighting the symmetrical balanced-opposed cylinders\" \/><\/p>\n<p style=\"font-size: 1.05em; color: #6b7280; margin-top: 15px; font-style: italic;\">Figure 2: The sprawling DW-Type architecture. The massive cylinders are arranged perfectly horizontally and directly opposite each other across the heavy-duty forged crankshaft. As one massive piston bank thrusts left, the opposing bank thrusts right, flawlessly mathematically neutralizing the extreme primary and secondary shaking forces.<\/p>\n<\/div>\n<p style=\"margin-bottom: 25px; font-size: 1.15em; text-align: justify; line-height: 1.85; color: #374151;\">The foundational crankcase is a masterpiece of metallurgical engineering, cast from ultra-dense nodular iron and internally reinforced to manage half a megawatt of continuous torsional force. By utilizing perfectly weight-matched reciprocating masses acting opposite one another, the destructive inertial forces are internally canceled. The inclusion of heavy-duty, oil-lubricated crosshead mechanisms ensures that the massive lateral thrust generated by the rotating crankshaft is fully absorbed before it reaches the piston rod. This guarantees the long rod travels in a perfectly linear motion, preventing side-loading and ensuring the ultra-large PTFE seals maintain perfect 1.5-bar containment geometry.<\/p>\n<\/div>\n<p><!-- Section 4: ISO Class 0 Oil-Free Purity --><\/p>\n<div style=\"margin-bottom: 70px; background-color: #ffffff; padding: 50px; border-radius: 16px; border: 1px solid #E5E7EB; box-shadow: 0 8px 35px rgba(0,0,0,0.06);\">\n<h2 style=\"color: #111827; font-size: 2.3em; border-bottom: 4px solid #1A5C9A; padding-bottom: 15px; margin-bottom: 35px;\">4. Uncompromising ISO 8573-1 Class 0 Oil-Free Protection<\/h2>\n<p style=\"margin-bottom: 25px; font-size: 1.15em; text-align: justify; line-height: 1.85; color: #374151;\">When 18,000 Nm\u00b3\/h of air is being injected directly into a 100,000-liter pharmaceutical fermentation bioreactor or used to fluidize and convey thousands of tons of raw baking flour in a pneumatic silo, absolute chemical purity is not a preference\u2014it is a strict legal and biological mandate. Standard rotary screw blowers or lubricated piston compressors utilize liquid oil to seal gaps and cool rotors. This oil inevitably shears into a microscopic aerosol mist. If even a fraction of a part-per-million (PPM) of degraded hydrocarbon oil enters a massive bio-reactor, it will permanently contaminate and destroy millions of dollars of active biological product.<\/p>\n<p style=\"margin-bottom: 25px; font-size: 1.15em; text-align: justify; line-height: 1.85; color: #374151;\">To achieve absolute, uncompromising ISO 8573-1 Class 0 (zero oil) certification, the DW-300\/1.5 completely isolates the mechanical lubrication zones from the pneumatic compression zones. The giant compression cylinders operate entirely dry. The massive pistons are equipped with wide, highly proprietary rider bands and compression rings fabricated from virgin Polytetrafluoroethylene (PTFE), heavily matrix-reinforced with aerospace-grade milled glass fiber and high-temperature carbon graphite. This self-lubricating matrix creates a frictionless, hermetic seal against the polished stainless-steel cylinder walls without a single drop of liquid oil.<\/p>\n<p style=\"margin-bottom: 25px; font-size: 1.15em; text-align: justify; line-height: 1.85; color: #374151;\">Because the massive forged crankshaft in the lower housing absolutely requires a pressurized bath of liquid oil to survive the 500+ kW loads, we guarantee separation by deploying engineered API-618 style distance pieces. These are elongated, physical open-air isolation chambers that separate the oily crankcase from the ultra-pure cylinders. Heavy-duty scraper rings wipe the piston rod entirely dry as it travels through this gap, ensuring that it is physically and mechanically impossible for liquid oil to creep up the rod and contaminate your colossal low-pressure air supply.<\/p>\n<\/div>\n<p><!-- Section 5: Thermodynamics and Valve Dynamics at Scale --><\/p>\n<div style=\"margin-bottom: 70px;\">\n<h2 style=\"color: #111827; font-size: 2.3em; border-bottom: 4px solid #1A5C9A; padding-bottom: 15px; margin-bottom: 35px;\">5. Low-Pressure Thermodynamics and High-Volume Valve Dynamics<\/h2>\n<p style=\"margin-bottom: 25px; font-size: 1.15em; text-align: justify; line-height: 1.85; color: #374151;\">While 1.5 bar (0.15 MPa) is technically &#8220;low pressure,&#8221; compressing 300 cubic meters of air every single minute still subjects the gas to the unyielding laws of adiabatic thermodynamics. The act of forcing that massive volume into a slightly smaller space generates kinetic friction and heat. If left unmanaged, the continuous discharge temperature would comfortably exceed 130\u00b0C. Injecting 130\u00b0C air into a sensitive biological fermentation tank or a PVC powder pneumatic conveying line would cause immediate thermal degradation of the product and potentially trigger powder melting and catastrophic pipe blockages.<\/p>\n<div style=\"text-align: center; margin: 45px 0;\">\n<p><img decoding=\"async\" style=\"max-width: 100%; height: auto; border-radius: 12px; border: 1px solid #E5E7EB; box-shadow: 0 12px 35px rgba(0,0,0,0.14);\" src=\"https:\/\/oxygen-compressor-machine.com\/wp-content\/uploads\/2026\/07\/Oil-free-air-compressor-at-the-user-site2.webp\" alt=\"Massive shell-and-tube water cooling heat exchangers attached to the low-pressure oil-free compressor\" \/><\/p>\n<p style=\"font-size: 1.05em; color: #6b7280; margin-top: 15px; font-style: italic;\">Figure 3: Detailed view of the massive discharge shell-and-tube water cooling architecture. Before the 18,000 Nm\u00b3\/h of air is released into your facility&#8217;s pneumatic grid, it is forcefully routed through this heavy-wall heat exchanger, rapidly stripping the adiabatic heat away using cold industrial water.<\/p>\n<\/div>\n<p style=\"margin-bottom: 25px; font-size: 1.15em; text-align: justify; line-height: 1.85; color: #374151;\">To completely neutralize this thermal threat, the DW-300\/1.5 features heavily integrated, oversized shell-and-tube water coolers on the final massive discharge manifold. By forcing the hot 1.5-bar air through a dense internal network of stainless steel tubes surrounded by a continuous high-volume flow of chilled facility water, the discharge temperature is aggressively dropped to just a few degrees above the ambient cooling water temperature. This ensures your downstream biological and chemical processes receive massive volumes of dense, perfectly cool air.<\/p>\n<p style=\"margin-bottom: 25px; font-size: 1.15em; text-align: justify; line-height: 1.85; color: #374151;\">Equally critical are the internal gas valves. In a machine pushing 18,000 Nm\u00b3\/h, even a microscopic restriction in the intake or discharge valves will create a severe pressure drop (\u2206P). If the machine has to push extra hard just to get the air past its own internal valves, it wastes tens of thousands of dollars in electricity. We deploy radically oversized, highly optimized valve assemblies featuring ultra-durable, lightweight PEEK (Polyether ether ketone) aerospace polymer plates. These PEEK plates open instantaneously with minimal aerodynamic resistance, providing a massive flow area that mathematically guarantees near-perfect volumetric efficiency and vastly reduces the total kilowatts required per cubic meter of air.<\/p>\n<\/div>\n<p><!-- Section 6: Total Cost of Ownership & Energy Savings (VFD) --><\/p>\n<div style=\"margin-bottom: 70px;\">\n<h2 style=\"color: #111827; font-size: 2.3em; border-bottom: 4px solid #1A5C9A; padding-bottom: 15px; margin-bottom: 35px;\">6. Crushing the OPEX: VFD Integration and Total Cost of Ownership (TCO)<\/h2>\n<p style=\"margin-bottom: 35px; font-size: 1.15em; text-align: justify; line-height: 1.85; color: #374151;\">When operating a heavy industrial machine utilizing a massive 500 kW to 630 kW main induction motor, the initial capital expenditure (CAPEX) of purchasing the machine is rapidly eclipsed by the staggering operational electricity expenditure (OPEX) over a 20-year lifecycle. In massive aeration or conveying systems, real-time demand fluctuates. Running a half-megawatt motor at a rigid, fixed 100% speed 24\/7\/365, only to mechanically bypass or vent excess 1.5-bar air when demand drops, is an egregious financial hemorrhage.<\/p>\n<div style=\"display: flex; flex-wrap: wrap; gap: 35px;\">\n<p><!-- Card 1 --><\/p>\n<div style=\"flex: 1 1 320px; box-sizing: border-box; padding: 45px 35px; border: 1px solid #E5E7EB; border-radius: 16px; background: linear-gradient(145deg, #ffffff, #f8fafc); box-shadow: 0 10px 25px rgba(0,0,0,0.04); transition: transform 0.3s ease;\">\n<div style=\"width: 70px; height: 70px; background-color: #dbeafe; color: #1a5c9a; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 32px; font-weight: 900; margin-bottom: 25px; border: 3px solid #BFDBFE;\">$<\/div>\n<h3 style=\"margin-top: 0; margin-bottom: 20px; color: #111827; font-size: 1.5em; font-weight: 800;\">Massive VFD Electrical Savings<\/h3>\n<p style=\"margin: 0; color: #4b5563; font-size: 1.1em; line-height: 1.75; text-align: justify;\">The DW-300\/1.5 is explicitly engineered for seamless integration with high-voltage Variable Frequency Drives (VFD). By utilizing highly advanced algorithms, the central PLC dynamically manipulates the electrical sine wave frequency supplied to the massive motor. If the plant&#8217;s fermentation tanks only require 12,000 Nm\u00b3\/h instead of the full 18,000 Nm\u00b3\/h, the VFD instantaneously slows the rotational RPM of the massive crankshaft. Because electrical power consumption drops exponentially with speed reduction, this precise real-time synchronization can easily yield over $150,000 USD in pure electrical savings annually, achieving a massive Return on Investment (ROI).<\/p>\n<\/div>\n<p><!-- Card 2 --><\/p>\n<div style=\"flex: 1 1 320px; box-sizing: border-box; padding: 45px 35px; border: 1px solid #E5E7EB; border-radius: 16px; background: linear-gradient(145deg, #ffffff, #f8fafc); box-shadow: 0 10px 25px rgba(0,0,0,0.04); transition: transform 0.3s ease;\">\n<div style=\"width: 70px; height: 70px; background-color: #dbeafe; color: #1a5c9a; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 32px; font-weight: 900; margin-bottom: 25px; border: 3px solid #BFDBFE;\">\u2699<\/div>\n<h3 style=\"margin-top: 0; margin-bottom: 20px; color: #111827; font-size: 1.5em; font-weight: 800;\">Unmatched Mechanical Longevity<\/h3>\n<p style=\"margin: 0; color: #4b5563; font-size: 1.1em; line-height: 1.75; text-align: justify;\">Because the DW-300\/1.5 achieves its massive 1.5-bar volume through enormous physical cylinder displacement rather than extremely high, friction-inducing rotational speeds (as seen in high-speed turbo blowers), the internal mechanical wear is drastically minimized. The heavy-duty cast iron frame, forged crankshaft, and aerospace-grade PTFE sealing matrix operate at a highly conservative, rhythmic pace. This dramatically extends the Mean Time Between Failures (MTBF), ensuring that the machine will continuously drive your facility&#8217;s baseload operations for 20 to 25 years with only highly predictable, scheduled consumable maintenance.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<p><!-- Section 7: Strategic Industrial Synergies (Packaging & Conveying Link) --><\/p>\n<div style=\"margin-bottom: 70px; padding: 45px; background-color: #eff6ff; border-radius: 16px; border-left: 8px solid #2563EB;\">\n<h2 style=\"color: #1e3a8a; font-size: 2.3em; margin-top: 0; margin-bottom: 25px; font-weight: 800;\">7. Strategic Industrial Synergies: Clean Conveying to Final Packaging<\/h2>\n<p style=\"margin-bottom: 25px; font-size: 1.15em; text-align: justify; line-height: 1.85; color: #1e40af;\">In massive petrochemical and advanced polymer manufacturing complexes, the generation of 18,000 Nm\u00b3\/h of ultra-pure 1.5-bar air is frequently deployed for the massive pneumatic conveying of raw polymer chips (such as PET, PE, or PP pellets). Moving thousands of tons of raw plastic pellets from reaction silos directly to the final injection and molding halls requires an uninterrupted, highly powerful, entirely oil-free pneumatic flow to prevent product contamination and pipeline blockages.<\/p>\n<p style=\"margin-bottom: 0; font-size: 1.15em; text-align: justify; line-height: 1.85; color: #1e40af;\">To fully empower our global EPC clients with true end-to-end vertical integration, we provide deeply complementary downstream polymer processing equipment. Once our mega-volume DW-300\/1.5 compressors successfully convey your pure polymer pellets to the manufacturing floor, we strongly recommend integrating our advanced <a style=\"color: #d97706; font-weight: bold; text-decoration: underline;\" href=\"https:\/\/injectionstretchblowmolding.com\/product\/zq40-injection-blow-molding-machine-replacement-for-jomar-ibm40\/\" target=\"_blank\" rel=\"noopener\">Blow Molding Machine<\/a> technology. This highly sophisticated injection stretch blow molding system takes the pure, uncontaminated raw polymer and rapidly processes it into flawless, absolutely leak-proof, highly sterile rigid containers and medical bottles. Utilizing this integrated machinery ecosystem ensures that your high-value resins are safely conveyed and perfectly packaged with zero risk of catastrophic oil contamination from start to finish.<\/p>\n<\/div>\n<p><!-- Section 8: Industry 4.0 Automation & SCADA --><\/p>\n<div style=\"margin-bottom: 70px;\">\n<h2 style=\"color: #111827; font-size: 2.3em; border-bottom: 4px solid #1A5C9A; padding-bottom: 15px; margin-bottom: 35px;\">8. Extreme Industry 4.0 Automation and Complete SCADA Connectivity<\/h2>\n<p style=\"margin-bottom: 25px; font-size: 1.15em; text-align: justify; line-height: 1.85; color: #374151;\">Governing a colossal pneumatic asset that processes 300 cubic meters of gas every minute requires decision-making speeds and monitoring capabilities far beyond human operators. To completely mathematically mitigate all dynamic operational risks, the DW-300\/1.5 is strictly governed by a state-of-the-art, heavily fortified Industry 4.0 digital automation architecture. The central digital brain is an ultra-high-speed programmable logic controller (PLC), typically deploying the premium Siemens S7-1500 or Allen-Bradley ControlLogix platforms, renowned globally for absolute zero-latency reliability in severe heavy industrial environments.<\/p>\n<p style=\"margin-bottom: 25px; font-size: 1.15em; text-align: justify; line-height: 1.85; color: #374151;\">This premium PLC is continuously fed massive amounts of live, micro-second data from an incredibly dense array of specialized field sensors. High-precision RTDs monitor extreme gas temperatures at every intake and massive discharge manifold. Because of the enormous physical reciprocating mass, highly sensitive kinetic vibration monitors (deploying proximity probes directly on the main crankcase) strictly ensure the heavy machine operates flawlessly within its harmonic envelope.<\/p>\n<p style=\"margin-bottom: 25px; font-size: 1.15em; text-align: justify; line-height: 1.85; color: #374151;\">If critical parameters rapidly breach physical limits\u2014such as a sudden massive spike in 1.5-bar discharge pressure indicating a severe downstream conveying pipe blockage, or a critical loss of cooling water flow\u2014the PLC instantaneously triggers a multi-tiered fail-safe protocol. It will immediately sever the massive main half-megawatt power supply, aggressively open pneumatically-piloted relief valves to safely vent the massive volume of trapped air, and isolate the machine to neutralize the hazard. Furthermore, utilizing highly robust industrial communication protocols (Modbus TCP\/IP, Profinet) via heavily shielded fiber-optic networks, the massive compressor skid seamlessly integrates directly into the mega-plant&#8217;s Distributed Control System (DCS), granting the central control room full live visibility and total remote start\/stop command capabilities.<\/p>\n<\/div>\n<p><!-- Section 9: Civil Engineering & Global Procurement --><\/p>\n<div style=\"margin-bottom: 70px;\">\n<h2 style=\"color: #111827; font-size: 2.3em; border-bottom: 4px solid #1A5C9A; padding-bottom: 15px; margin-bottom: 35px;\">9. Massive Civil Engineering Requirements &amp; EPC Logistics<\/h2>\n<p style=\"margin-bottom: 25px; font-size: 1.15em; text-align: justify; line-height: 1.85; color: #374151;\">Executing a successful procurement and deployment strategy for a colossal 18,000 Nm\u00b3\/h heavy industrial compressor is not merely a matter of equipment delivery; it fundamentally requires highly strict, heavy-duty site civil engineering preparation. Dealing with an immense, multi-ton reciprocating mechanical system driven by a half-megawatt motor necessitates a structural engineering focus almost entirely dedicated to managing immense dynamic loads and preventing low-frequency destructive kinetic vibration from transferring into your facility&#8217;s surrounding architecture.<\/p>\n<div style=\"text-align: center; margin: 45px 0;\">\n<p><img decoding=\"async\" style=\"max-width: 100%; height: auto; border-radius: 12px; box-shadow: 0 12px 35px rgba(0,0,0,0.15);\" src=\"https:\/\/oxygen-compressor-machine.com\/wp-content\/uploads\/2026\/07\/Air-compressor-application-scenarios2.webp\" alt=\"High-capacity massive volume low-pressure oil-free compressor feeding a huge multi-level industrial manufacturing silo network\" \/><\/p>\n<p style=\"font-size: 1.05em; color: #6b7280; margin-top: 15px; font-style: italic;\">Figure 4: Strategic deployment of massive-volume pneumatic infrastructure. The scale of the DW-300\/1.5 dictates that proper heavy civil engineering and a deep, isolated concrete foundation block are strictly mandated to safely operate this machinery across a 25-year lifecycle.<\/p>\n<\/div>\n<p style=\"margin-bottom: 25px; font-size: 1.15em; text-align: justify; line-height: 1.85; color: #374151;\">While the DW-Type symmetrical balanced-opposed geometry brilliantly cancels out primary shaking forces, the massive overall static weight of the enormous skid strictly requires a deeply excavated, highly dedicated, vibrationally isolated reinforced concrete foundation block. Our senior fluid dynamics and civil engineering teams provide exhaustive, dimensionally accurate 3D CAD foundation blueprints directly to your EPC firm months before delivery. This heavy concrete block must be poured precisely, utilizing deep-set, ultra-heavy-duty J-style steel anchor bolts and high-strength industrial epoxy grout. The physical mass of this concrete block is calculated to be typically 5 to 7 times the total static weight of the compressor skid to mathematically absorb and nullify any residual harmonic vibrations.<\/p>\n<\/div>\n<p><!-- Section 10: Expanded Comprehensive FAQ --><\/p>\n<div style=\"margin-bottom: 70px;\">\n<h2 style=\"color: #111827; font-size: 2.3em; border-bottom: 4px solid #1A5C9A; padding-bottom: 15px; margin-bottom: 35px;\">10. Executive Technical FAQ: DW-300\/1.5 Mega-Volume Operations<\/h2>\n<p style=\"margin-bottom: 35px; font-size: 1.15em; text-align: justify; line-height: 1.85; color: #4b5563;\">To support rapid, deep engineering evaluation by global EPC firms, heavy manufacturing planners, and municipal wastewater engineers, our senior technical team has exhaustively distilled the ten most critical inquiries regarding the deployment of the massive 18,000 Nm\u00b3\/h DW-300\/1.5 low-pressure compressor.<\/p>\n<details style=\"margin-bottom: 25px; border: 1px solid #E5E7EB; border-radius: 14px; background-color: #ffffff; padding: 30px; cursor: pointer; box-shadow: 0 4px 15px rgba(0,0,0,0.04);\">\n<summary style=\"font-weight: 800; color: #1a5c9a; font-size: 1.3em; outline: none; list-style-position: inside;\">1. Why should we purchase a dedicated 1.5-bar compressor instead of regulating our 7-bar system down?<\/summary>\n<div style=\"margin-top: 15px; color: #374151; font-size: 1.15em; line-height: 1.75; text-align: justify;\">Using a 7-bar compressor and throttling it down to 1.5-bar is thermodynamically disastrous. It takes massive amounts of electricity to force air into a 7-bar state. Releasing that pressure through a regulator immediately wastes all that invested kinetic energy, effectively throwing away 40% to 60% of the electrical power consumed. At a 300 Nm\u00b3\/min scale, this waste translates to hundreds of thousands of dollars annually. The DW-300\/1.5 uses specifically oversized cylinders to reach exactly 1.5 bar, using only the precise kilowatts necessary, resulting in a massive OPEX reduction.<\/div>\n<\/details>\n<details style=\"margin-bottom: 25px; border: 1px solid #E5E7EB; border-radius: 14px; background-color: #ffffff; padding: 30px; cursor: pointer; box-shadow: 0 4px 15px rgba(0,0,0,0.04);\">\n<summary style=\"font-weight: 800; color: #1a5c9a; font-size: 1.3em; outline: none; list-style-position: inside;\">2. What are the primary applications for 18,000 Nm\u00b3\/h of 1.5-bar air?<\/summary>\n<div style=\"margin-top: 15px; color: #374151; font-size: 1.15em; line-height: 1.75; text-align: justify;\">This massive volume\/low-pressure profile is explicitly required for three major sectors: 1) Large-scale biological fermentation (supplying immense oxygen volumes to deep pharmaceutical\/API vats without rupturing the tanks). 2) Pneumatic conveying (fluidizing and blowing thousands of tons of PTA powder, cement, or flour through pipelines). 3) Heavy municipal wastewater treatment (driving oxygen through massive aeration diffuser grids at the bottom of deep treatment basins).<\/div>\n<\/details>\n<details style=\"margin-bottom: 25px; border: 1px solid #E5E7EB; border-radius: 14px; background-color: #ffffff; padding: 30px; cursor: pointer; box-shadow: 0 4px 15px rgba(0,0,0,0.04);\">\n<summary style=\"font-weight: 800; color: #1a5c9a; font-size: 1.3em; outline: none; list-style-position: inside;\">3. How does the machine guarantee ISO Class 0 &#8220;100% Oil-Free&#8221; purity?<\/summary>\n<div style=\"margin-top: 15px; color: #374151; font-size: 1.15em; line-height: 1.75; text-align: justify;\">The massive compression cylinders are strictly dry-running, utilizing highly advanced, self-lubricating PTFE\/glass-fiber composite piston rings instead of liquid oil. Furthermore, the oily lower crankcase is physically separated from the pure air cylinders by an open-air API-618 distance piece. Because there is a ventilated physical gap equipped with heavy-duty rod wiper rings, it is mechanically impossible for crankcase lubricating oil to migrate upward into the colossal 1.5-bar air stream.<\/div>\n<\/details>\n<details style=\"margin-bottom: 25px; border: 1px solid #E5E7EB; border-radius: 14px; background-color: #ffffff; padding: 30px; cursor: pointer; box-shadow: 0 4px 15px rgba(0,0,0,0.04);\">\n<summary style=\"font-weight: 800; color: #1a5c9a; font-size: 1.3em; outline: none; list-style-position: inside;\">4. Is a 300 Nm\u00b3\/min reciprocating compressor inherently prone to severe vibration?<\/summary>\n<div style=\"margin-top: 15px; color: #374151; font-size: 1.15em; line-height: 1.75; text-align: justify;\">If it were built as a standard vertical or V-type machine, yes, the vibration would be highly destructive. However, the DW-300\/1.5 utilizes our massive DW-Type Symmetrical Balanced-Opposed frame. The giant cylinders are laid completely horizontally and exactly oppose one another. When the left-side pistons fire outward, the right-side pistons fire outward simultaneously. This flawless geometric symmetry mathematically cancels out the highly destructive primary and secondary inertial shaking forces, resulting in an exceptionally smooth-running machine despite its colossal volume.<\/div>\n<\/details>\n<details style=\"margin-bottom: 25px; border: 1px solid #E5E7EB; border-radius: 14px; background-color: #ffffff; padding: 30px; cursor: pointer; box-shadow: 0 4px 15px rgba(0,0,0,0.04);\">\n<summary style=\"font-weight: 800; color: #1a5c9a; font-size: 1.3em; outline: none; list-style-position: inside;\">5. Does this machine utilize multi-stage compression?<\/summary>\n<div style=\"margin-top: 15px; color: #374151; font-size: 1.15em; line-height: 1.75; text-align: justify;\">No. Because the target discharge pressure is only 1.5 bar (0.15 MPa), the compression ratio is relatively low. Therefore, the DW-300\/1.5 utilizes a massive single-stage parallel architecture. All of the huge cylinders operate in parallel, pulling in atmospheric air, compressing it to 1.5 bar in one stroke, and discharging it into a common massive header. This parallel setup is the only way to physically process the colossal 18,000 Nm\u00b3\/h volume efficiently.<\/div>\n<\/details>\n<details style=\"margin-bottom: 25px; border: 1px solid #E5E7EB; border-radius: 14px; background-color: #ffffff; padding: 30px; cursor: pointer; box-shadow: 0 4px 15px rgba(0,0,0,0.04);\">\n<summary style=\"font-weight: 800; color: #1a5c9a; font-size: 1.3em; outline: none; list-style-position: inside;\">6. Why are PEEK polymer valves used instead of standard stainless steel?<\/summary>\n<div style=\"margin-top: 15px; color: #374151; font-size: 1.15em; line-height: 1.75; text-align: justify;\">In high-volume, low-pressure applications, minimizing pressure drop (\u2206P) across the valves is paramount for energy efficiency. Furthermore, the massive valves must snap open and shut millions of times a month. Standard stainless steel plates are heavy (causing restriction) and prone to high-cycle impact fatigue shattering. We use PEEK (Polyether ether ketone), an advanced, ultra-lightweight aerospace thermoplastic. PEEK valves open effortlessly to maximize flow and possess unmatched flexural impact strength, completely eliminating the risk of valve fragmentation into the cylinders.<\/div>\n<\/details>\n<details style=\"margin-bottom: 25px; border: 1px solid #E5E7EB; border-radius: 14px; background-color: #ffffff; padding: 30px; cursor: pointer; box-shadow: 0 4px 15px rgba(0,0,0,0.04);\">\n<summary style=\"font-weight: 800; color: #1a5c9a; font-size: 1.3em; outline: none; list-style-position: inside;\">7. Can the compressor be integrated directly into our massive DCS network?<\/summary>\n<div style=\"margin-top: 15px; color: #374151; font-size: 1.15em; line-height: 1.75; text-align: justify;\">Absolutely. The DW-300\/1.5 is fully SCADA-ready directly from the factory, governed by an advanced, heavy-duty Siemens S7 or Allen-Bradley PLC. Utilizing standard robust industrial communication protocols (like Modbus TCP\/IP or Profinet) via heavily shielded fiber-optic networks, the massive unit flawlessly integrates into your central Distributed Control System (DCS). This grants your plant managers total live visibility over massive air flows, temperatures, vibration metrics, and remote automated control.<\/div>\n<\/details>\n<details style=\"margin-bottom: 25px; border: 1px solid #E5E7EB; border-radius: 14px; background-color: #ffffff; padding: 30px; cursor: pointer; box-shadow: 0 4px 15px rgba(0,0,0,0.04);\">\n<summary style=\"font-weight: 800; color: #1a5c9a; font-size: 1.3em; outline: none; list-style-position: inside;\">8. What happens if our pneumatic conveying line suddenly blocks?<\/summary>\n<div style=\"margin-top: 15px; color: #374151; font-size: 1.15em; line-height: 1.75; text-align: justify;\">If a massive downstream pipe block occurs, the 1.5-bar pressure will aggressively and rapidly spike. The machine&#8217;s fail-safe digital protocol handles this instantaneously. Extremely precise pressure transmitters alert the PLC in milliseconds. The PLC will immediately attempt to slow the motor via the VFD. If pressure hits critical limits (e.g., 2.0 bar), the PLC instantly severs the massive main power and violently activates massive pneumatically-piloted safety relief valves to rapidly vent the trapped air volume to the atmosphere, completely neutralizing the explosion or mechanical failure hazard.<\/div>\n<\/details>\n<details style=\"margin-bottom: 25px; border: 1px solid #E5E7EB; border-radius: 14px; background-color: #ffffff; padding: 30px; cursor: pointer; box-shadow: 0 4px 15px rgba(0,0,0,0.04);\">\n<summary style=\"font-weight: 800; color: #1a5c9a; font-size: 1.3em; outline: none; list-style-position: inside;\">9. Is water cooling strictly necessary for a low-pressure machine?<\/summary>\n<div style=\"margin-top: 15px; color: #374151; font-size: 1.15em; line-height: 1.75; text-align: justify;\">Yes, absolutely. Even at a low compression ratio of 1.5 bar, forcefully processing 18,000 Nm\u00b3\/h generates immense kinetic friction and adiabatic heat, easily pushing discharge air past 130\u00b0C. To protect downstream powder conveying lines from melting, or to protect sensitive biological fermentation from thermal shock, the DW-300\/1.5 relies on massive shell-and-tube heat exchangers. A continuous, high-volume flow of clean industrial facility cooling water is mandatory to strip this heat and deliver dense, cool air.<\/div>\n<\/details>\n<details style=\"margin-bottom: 25px; border: 1px solid #E5E7EB; border-radius: 14px; background-color: #ffffff; padding: 30px; cursor: pointer; box-shadow: 0 4px 15px rgba(0,0,0,0.04);\">\n<summary style=\"font-weight: 800; color: #1a5c9a; font-size: 1.3em; outline: none; list-style-position: inside;\">10. How heavily must the foundation be engineered for installation?<\/summary>\n<div style=\"margin-top: 15px; color: #374151; font-size: 1.15em; line-height: 1.75; text-align: justify;\">Because of the massive physical scale and the reciprocating mass driven by a half-megawatt motor, standard factory floors are entirely inadequate. The client must excavate and pour a dedicated, highly isolated reinforced concrete foundation block based on our strict 3D civil engineering blueprints. This block must typically weigh 5 to 7 times the static weight of the entire compressor skid and use deep-set industrial J-anchors. This massive concrete inertia block absorbs any residual low-frequency kinetic vibrations over the machine&#8217;s 25-year lifespan.<\/div>\n<\/details>\n<\/div>\n<p><!-- Call to Action --><\/p>\n<div style=\"margin-top: 90px; background: linear-gradient(135deg, #111827 0%, #1F2937 100%); color: #ffffff; padding: 70px 45px; border-radius: 18px; text-align: center; box-shadow: 0 20px 50px rgba(0,0,0,0.3);\">\n<h2 style=\"color: #ffffff; font-size: 3em; margin-top: 0; margin-bottom: 30px; font-weight: 900; letter-spacing: -1px;\">Command Massive Pneumatic Flow with Absolute Efficiency<\/h2>\n<p style=\"font-size: 1.35em; margin-bottom: 45px; color: #d1d5db; max-width: 950px; margin-left: auto; margin-right: auto; line-height: 1.85;\">Stop hemorrhaging OPEX by wastefully regulating high-pressure utility grids. Radically transform the efficiency of your massive pharmaceutical fermentation networks, municipal wastewater aeration basins, and bulk pneumatic powder conveying systems. Deploy the unrelenting 18,000 Nm\u00b3\/h capacity of the DW-300\/1.5 to secure mathematically perfect 1.5-bar precision, uncompromising ISO Class 0 oil-free purity, and disruptive factory-direct B2B heavy equipment pricing today.<\/p>\n<p><a style=\"display: inline-block; background-color: #e8440a; color: #ffffff; text-decoration: none; padding: 24px 60px; font-size: 1.45em; font-weight: 800; border-radius: 12px; transition: all 0.3s ease; box-shadow: 0 10px 30px rgba(232, 68, 10, 0.4); text-transform: uppercase; letter-spacing: 1.5px;\" href=\"https:\/\/oxygen-compressor-machine.com\/tr\/contact-us\/\"><br \/>\nRequest a Factory-Direct Technical Quote<br \/>\n<\/a><\/p>\n<p style=\"margin-top: 40px; font-size: 1.2em; color: #9ca3af; max-width: 800px; margin-left: auto; margin-right: auto; line-height: 1.7;\">Our highly dedicated, deeply experienced senior pneumatic fluid dynamics engineering team will rigorously review your exact massive 1.5-bar flow requirements, ambient site elevation metrics, and complex civil engineering constraints. Expect a mathematically verified severe-duty sizing prospectus, complete heavy 3D CAD deep foundation schematics, and highly transparent global EPC procurement pricing strictly within 24 hours.<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Maximize your low-pressure efficiency with the DW-300\/1.5 Oil-Free Air Compressor. Deliver 18,000 Nm\u00b3\/h of ISO Class 0 pure air at 1.5 bar. Get a quote!<\/p>","protected":false},"featured_media":506,"comment_status":"open","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[972],"product_tag":[],"class_list":["post-504","product","type-product","status-publish","has-post-thumbnail","product_cat-oil-free-compressor","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/oxygen-compressor-machine.com\/tr\/wp-json\/wp\/v2\/product\/504","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oxygen-compressor-machine.com\/tr\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/oxygen-compressor-machine.com\/tr\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/oxygen-compressor-machine.com\/tr\/wp-json\/wp\/v2\/comments?post=504"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oxygen-compressor-machine.com\/tr\/wp-json\/wp\/v2\/media\/506"}],"wp:attachment":[{"href":"https:\/\/oxygen-compressor-machine.com\/tr\/wp-json\/wp\/v2\/media?parent=504"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/oxygen-compressor-machine.com\/tr\/wp-json\/wp\/v2\/product_brand?post=504"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/oxygen-compressor-machine.com\/tr\/wp-json\/wp\/v2\/product_cat?post=504"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/oxygen-compressor-machine.com\/tr\/wp-json\/wp\/v2\/product_tag?post=504"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}