{"id":575,"date":"2026-07-20T07:37:10","date_gmt":"2026-07-20T07:37:10","guid":{"rendered":"https:\/\/n2-compressor.com\/?post_type=product&p=575"},"modified":"2026-07-20T07:37:45","modified_gmt":"2026-07-20T07:37:45","slug":"zw-5-4-620-nitrogen-compressor","status":"publish","type":"product","link":"https:\/\/n2-compressor.com\/es\/producto\/zw-5-4-620-nitrogen-compressor\/","title":{"rendered":"ZW-5.4\/6~20 Nitrogen Compressor \u2013 Variable-Pressure Oil-Free N2 Booster for Flexible Industrial Applications"},"content":{"rendered":"
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ZW-5.4\/6~20 Nitrogen Compressor \u2013 Variable-Pressure Oil-Free N2 Booster for Flexible Industrial Applications<\/h1>\n

Engineered to deliver 5.4 m\u00b3\/min across a versatile pressure range from 0.60 MPa to 2.00 MPa, the ZW-5.4\/6~20 is a two-stage, two-row oil-free piston nitrogen compressor designed for multi-pressure nitrogen distribution, pilot plant operations, and flexible industrial gas systems. Zero oil contamination, compact footprint, and optimized for variable-pressure duty cycles.<\/p>\n

Solicitar presupuesto<\/a>
\nVer la serie de compresores N2<\/a><\/div>\n

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Descripci\u00f3n general del producto<\/h2>\n

El ZW-5.4\/6~20 nitrogen compressor<\/strong> represents a uniquely versatile solution within our oil-free piston compressor family, distinguished by its broad operating pressure range that spans from 0.60 MPa to 2.00 MPa<\/strong> at a consistent capacity of 5.4 m\u00b3\/min<\/strong>. This variable-pressure capability makes the unit exceptionally well-suited for applications where nitrogen demand fluctuates between medium-pressure and high-pressure requirements, or where a single compressor must serve multiple consumers at different pressure levels.<\/p>\n

The designation “6~20” in the model number reflects the compressor’s ability to operate across a discharge pressure spectrum equivalent to 0.60\u20132.00 MPa, achieved through adjustable clearance pocket control and staged unloading mechanisms. This flexibility eliminates the need for multiple compressors or intermediate pressure-reducing stations in facilities with diverse nitrogen pressure requirements, significantly reducing capital expenditure and maintenance complexity.<\/p>\n

Like all units in our ZW series, the ZW-5.4\/6~20 maintains a v\u00eda de compresi\u00f3n totalmente libre de aceite<\/strong> utilizing self-lubricating PTFE composite piston rings and rider bands. This ensures the nitrogen product stream remains completely free of hydrocarbon contamination, achieving Certificaci\u00f3n ISO 8573-1 Clase 0<\/strong> without any downstream purification equipment. The compact dimensions and modest weight make this unit ideal for pilot plants, R&D facilities, and mobile nitrogen supply systems where space and portability are critical constraints.<\/p>\n

\"ZW-5.4\/6~20<\/p>\n<\/div>\n

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Technical Specifications \u2013 ZW-5.4\/6~20<\/h2>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Par\u00e1metro<\/th>\nValor<\/th>\nUnidad<\/th>\n<\/tr>\n<\/thead>\n
Modelo<\/td>\nZW-5.4\/6~20<\/td>\n\u2013<\/td>\n<\/tr>\n
Patr\u00f3n<\/td>\nDos etapas, dos filas (\u4e8c\u5217\u4e8c\u7ea7)<\/td>\n\u2013<\/td>\n<\/tr>\n
Capacidad<\/td>\n5.4 (inlet 0.60MPa)<\/td>\nm\u00b3\/min<\/td>\n<\/tr>\n
Rango de presi\u00f3n de descarga<\/td>\n0.60 \u2013 2.00<\/td>\nMPa<\/td>\n<\/tr>\n
Dimensiones del compresor (largo \u00d7 ancho \u00d7 alto)<\/td>\n2570 \u00d7 1550 \u00d7 2345<\/td>\nmm<\/td>\n<\/tr>\n
Peso<\/td>\n2.40<\/td>\nt<\/td>\n<\/tr>\n
Fuerza<\/td>\n132<\/td>\nkW<\/td>\n<\/tr>\n
Voltaje<\/td>\n380\/6k o 10k<\/td>\nV<\/td>\n<\/tr>\n
Medio gaseoso<\/td>\nNitr\u00f3geno (N\u2082)<\/td>\n\u2013<\/td>\n<\/tr>\n
Lubricaci\u00f3n<\/td>\nSin aceite<\/td>\n\u2013<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

* Capacity rated at 0.60 MPa inlet pressure. At higher discharge pressures, capacity adjusts proportionally. All specifications per ISO 1217, Annex C. Actual performance varies with site altitude, ambient temperature, and inlet conditions.<\/em><\/p>\n<\/div>\n

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Caracter\u00edsticas principales y ventajas de ingenier\u00eda<\/h2>\n

1. Variable Pressure Range with Clearance Pocket Control<\/h3>\n

The ZW-5.4\/6~20 incorporates an innovative adjustable clearance pocket system<\/strong> that allows the compressor to operate efficiently across a discharge pressure range from 0.60 MPa to 2.00 MPa without mechanical modification. By adjusting the clearance volume in the high-pressure cylinder, the unit optimizes volumetric efficiency at each pressure setpoint. This eliminates the need for multiple compressors or pressure-reducing valves in facilities with variable nitrogen pressure requirements, reducing both capital expenditure and operating complexity. The pressure adjustment can be performed manually or automated via pneumatic actuators integrated with the control system.<\/p>\n

2. Oil-Free PTFE Composite Sealing for High-Pressure Service<\/h3>\n

The ZW-5.4\/6~20 employs a Sistema de anillos de pist\u00f3n y bandas de gu\u00eda autolubricantes<\/strong> constructed from high-performance PTFE composites reinforced with carbon fiber and bronze particulates. This material formulation is specifically engineered for high-pressure nitrogen service, maintaining sealing integrity and low friction coefficients across the full 0.60\u20132.00 MPa operating range. The rings achieve a coefficient of friction below 0.07 without any external lubrication, ensuring Contenido de aceite seg\u00fan la norma ISO 8573-1 Clase 0<\/strong> in the compressed nitrogen stream. For pilot plants and research facilities where nitrogen purity is non-negotiable, this native oil-free certification eliminates downstream filtration costs entirely.<\/p>\n

3. Two-Stage Compression for Extended Pressure Ratio<\/h3>\n

El arquitectura de dos etapas y dos filas<\/strong> is essential for managing the high pressure ratios associated with 2.00 MPa discharge pressure. By dividing the compression work between a low-pressure cylinder and a high-pressure cylinder, the unit limits the discharge temperature of each stage to below 160\u00b0C, preserving PTFE ring integrity and preventing thermal degradation. An integrated shell-and-tube intercooler removes the heat of compression between stages, improving overall thermodynamic efficiency and extending valve plate service life. At lower discharge pressures (0.60\u20131.00 MPa), the unit can operate with reduced inter-stage cooling demand, further improving efficiency.<\/p>\n

4. Configuraci\u00f3n de voltaje flexible para diversas instalaciones<\/h3>\n

The ZW-5.4\/6~20 is available with a 132 kW drive motor<\/strong> in 380V, 6kV, or 10kV configurations. The standard 380V option is ideal for laboratory and pilot plant installations with existing low-voltage distribution infrastructure. The 6kV and 10kV options cater to industrial facilities with medium-voltage bus systems, reducing electrical infrastructure costs and improving energy efficiency by eliminating step-down transformers. This voltage flexibility ensures the ZW-5.4\/6~20 can be integrated into virtually any electrical environment without costly modifications.<\/p>\n

\"ZW-5.4\/6~20<\/p>\n<\/div>\n

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Escenarios de aplicaci\u00f3n<\/h2>\n

Pilot Plants & Process Development Facilities<\/h3>\n

Chemical and pharmaceutical pilot plants frequently require nitrogen at varying pressures depending on the process being tested. The ZW-5.4\/6~20 variable-pressure nitrogen compressor<\/a> serves as a single, flexible nitrogen source that can supply inerting gas at 0.60 MPa for reactor blanketing during one campaign, then adjust to 2.00 MPa for high-pressure catalyst testing during the next campaign. The 5.4 m\u00b3\/min capacity is well-matched to the scale of pilot plant operations, and the oil-free design ensures no hydrocarbon contamination of sensitive catalysts or reaction products.<\/p>\n

\"ZW-5.4\/6~20<\/p>\n

Multi-Pressure Industrial Gas Distribution<\/h3>\n

Industrial facilities with diverse nitrogen consumers\u2014such as tank blanketing at 0.60 MPa, pipeline purging at 1.20 MPa, and emergency vessel inerting at 2.00 MPa\u2014traditionally require multiple compressors or pressure-reducing stations. The ZW-5.4\/6~20 eliminates this complexity by providing a single compressor capable of serving all pressure requirements. The adjustable discharge pressure can be changed between shifts or campaigns to match the active process demands, reducing equipment count and simplifying maintenance scheduling.<\/p>\n

Mobile Nitrogen Supply & Emergency Response<\/h3>\n

The compact footprint and modest weight of the ZW-5.4\/6~20 make it ideal for mobile nitrogen supply units<\/strong> mounted on road-legal trailers. The variable pressure capability is particularly valuable in emergency response scenarios where nitrogen may be needed at different pressures for pipeline purging, vessel inerting, or fire suppression. The unit can be transported to the site, connected to a nitrogen source (liquid nitrogen vaporizer or small VPSA generator), and quickly adjusted to the required discharge pressure. The oil-free design ensures no contamination of the protected process equipment.<\/p>\n

\"ZW-5.4\/6~20<\/p>\n

Research & University Laboratories<\/h3>\n

University research laboratories and national research institutes require high-purity nitrogen for a wide range of experiments, from inert atmosphere glove boxes (0.60 MPa) to high-pressure synthesis reactors (2.00 MPa). The ZW-5.4\/6~20’s variable pressure range and oil-free certification make it an ideal central nitrogen supply for multi-disciplinary research facilities. The 5.4 m\u00b3\/min capacity can simultaneously support multiple high-pressure reactors, several glove box stations, and gas chromatography instruments without compromising purity or pressure stability.<\/p>\n<\/div>\n

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Materiales y construcci\u00f3n<\/h2>\n

The ZW-5.4\/6~20 is constructed from materials selected for high-pressure nitrogen compatibility, corrosion resistance, and compact structural integrity:<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n
Componente<\/th>\nMaterial<\/th>\nEspecificaci\u00f3n<\/th>\n<\/tr>\n<\/thead>\n
Bloque de cilindros<\/td>\nHierro fundido gris<\/td>\nGG25 \/ HT250, conductos de refrigeraci\u00f3n integrales<\/td>\n<\/tr>\n
Cig\u00fce\u00f1al<\/td>\nAcero aleado forjado<\/td>\n42CrMo4, Q&T, equilibrado din\u00e1micamente<\/td>\n<\/tr>\n
Anillos de pist\u00f3n<\/td>\nPTFE-Carbon-Bronze Composite<\/td>\nSelf-lubricating, high-pressure rated to 2.5 MPa<\/td>\n<\/tr>\n
Bandas de jinete<\/td>\nCompuesto de PTFE<\/td>\nGu\u00eda del pist\u00f3n, antidesgaste, tasa de desgaste <0,05 mm\/1000 h<\/td>\n<\/tr>\n
Placas de v\u00e1lvulas<\/td>\nAcero inoxidable<\/td>\nAcero inoxidable SS316, anillo conc\u00e9ntrico con resorte<\/td>\n<\/tr>\n
Clearance Pockets<\/td>\nCarbon Steel with SS316 Liner<\/td>\nAdjustable volume, pneumatic actuation optional<\/td>\n<\/tr>\n
Intercooler<\/td>\nCarcasa de acero al carbono \/ Tubos de acero inoxidable SS304<\/td>\nPrueba hidrost\u00e1tica ASME VIII Div.1, 1.5\u00d7<\/td>\n<\/tr>\n
Marco base<\/td>\nAcero estructural<\/td>\nWelded, vibration-damped, forklift-compatible<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Todos los componentes sometidos a presi\u00f3n cumplen con ASME BPVC Secci\u00f3n VIII Divisi\u00f3n 1<\/strong> or Chinese GB 150 standards. Weld joints are subjected to 100% radiographic inspection (RT), and each pressure vessel undergoes hydrostatic testing at 1.5\u00d7 MAWP for a minimum 30-minute hold period.<\/p>\n

\"ZW-5.4\/6~20<\/p>\n<\/div>\n

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Gu\u00eda de instalaci\u00f3n y mantenimiento<\/h2>\n

Requisitos de cimentaci\u00f3n y espaciales<\/h3>\n

The ZW-5.4\/6~20 weighs 2.40 tonnes and features a compact vertical design with a low center of gravity. A losa de hormig\u00f3n armado de 4 a 5 toneladas<\/strong> is sufficient for stable operation, mounted on elastomeric vibration isolators (natural frequency 8\u201312 Hz). The two-row opposed-cylinder arrangement inherently cancels first-order inertial forces, minimizing vibration transmission. Required clearances: 1.0 m on the non-drive side for valve maintenance, 0.8 m on the drive side for motor access, and 1.5 m overhead for routine service. The unit’s forklift-compatible base frame allows positioning without overhead crane equipment.<\/p>\n

Especificaciones del agua de refrigeraci\u00f3n<\/h3>\n

La demanda de agua de refrigeraci\u00f3n es aproximadamente 15 m\u00b3\/h<\/strong> at an inlet temperature not exceeding 32\u00b0C. The water distribution circuit feeds the cylinder jackets and intercooler in parallel. Acceptable water quality: pH 6.5\u20138.5, total hardness < 300 mg\/L as CaCO\u2083, chloride < 50 mg\/L, suspended solids < 30 mg\/L. For installations without reliable municipal water supply, a compact closed-loop cooling tower with a 0.5 m\u00b3 buffer tank is recommended. At higher discharge pressures (1.50\u20132.00 MPa), cooling water flow should be increased by approximately 20% to manage the additional heat of compression.<\/p>\n

Intervalos de mantenimiento<\/h3>\n
\n\n\n\n\n\n\n\n\n\n
Intervalo<\/th>\nArt\u00edculo de servicio<\/th>\nAcci\u00f3n requerida<\/th>\n<\/tr>\n<\/thead>\n
A diario<\/td>\nVerificaci\u00f3n visual y operativa<\/td>\nInspect for leaks, abnormal noise, cooling water flow, discharge pressure stability<\/td>\n<\/tr>\n
250 horas<\/td>\nInspecci\u00f3n de la placa de v\u00e1lvulas<\/td>\nCompruebe si hay dep\u00f3sitos de carbono, fatiga del muelle o grietas en la placa.<\/td>\n<\/tr>\n
1.000 horas<\/td>\nEvaluaci\u00f3n del desgaste de los anillos del pist\u00f3n<\/td>\nMeasure groove clearance; replace rings if > 0.20 mm<\/td>\n<\/tr>\n
4.000 horas<\/td>\nServicio intermedio<\/td>\nReemplazar los anillos del pist\u00f3n, las bandas de retenci\u00f3n y los conjuntos de v\u00e1lvulas.<\/td>\n<\/tr>\n
8.000 horas<\/td>\nRevisi\u00f3n general<\/td>\nInspeccione el cig\u00fce\u00f1al, mida las holguras de los cojinetes y reempl\u00e1celos seg\u00fan sea necesario.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

The oil-free design eliminates all oil-related maintenance tasks. There are no oil changes, filter replacements, separator cartridge changes, or oil analysis requirements. The only consumable wear items are the Anillos de pist\u00f3n y bandas de retenci\u00f3n de PTFE<\/strong>, which typically achieve 3,500\u20135,500 hours at high-pressure operation (1.50\u20132.00 MPa) and 4,500\u20136,500 hours at medium-pressure operation (0.60\u20131.00 MPa).<\/p>\n

\"ZW-5.4\/6~20<\/p>\n<\/div>\n

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Certificaciones de cumplimiento y seguridad<\/h2>\n

The ZW-5.4\/6~20 nitrogen compressor meets the following international standards and regulatory requirements:<\/p>\n

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Equipos a presi\u00f3n<\/strong>
\nASME BPVC Secci\u00f3n VIII Div.1, GB 150-2011, PED 2014\/68\/EU M\u00f3dulo A<\/span><\/div>\n
Seguridad el\u00e9ctrica y de maquinaria<\/strong>
\nIEC 60034-1 (eficiencia IE3), IEC 60204-1, ISO 12100<\/span><\/div>\n
Certificaci\u00f3n sin aceite<\/strong>
\nISO 8573-1 Clase 0 (Contenido de aceite), probado por T\u00dcV Rheinland<\/span><\/div>\n
Calidad y medio ambiente<\/strong>
\nISO 9001:2015, ISO 14001:2015<\/span><\/div>\n<\/div>\n
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\u26a0\ufe0f Aviso de seguridad<\/strong><\/p>\n

Nitrogen is an odorless, colorless asphyxiant gas. All ZW-5.4\/6~20 installations must include continuous oxygen monitoring in the compressor room and adjacent areas. Ventilation must maintain ambient oxygen above 19.5% per OSHA 29 CFR 1910.146. Alarm interlocks should trigger at 19.5% O\u2082 and hard shutdown at 18.0% O\u2082. Personnel entry requires portable oxygen monitors and a buddy system.<\/p>\n<\/div>\n

\"ZW-5.4\/6~20<\/p>\n<\/div>\n

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An\u00e1lisis de rendimiento y eficiencia<\/h2>\n

The ZW-5.4\/6~20 achieves a specific power consumption of approximately 24.4 kW per m\u00b3\/min<\/strong> at 2.00 MPa discharge pressure, improving to approximately 18.5 kW\/m\u00b3\/min at 0.60 MPa. While the specific power is higher than larger-capacity models due to reduced scale efficiency, the unit’s variable-pressure capability delivers unique operational flexibility that offsets the marginal efficiency penalty. For comparison, a dedicated high-pressure diaphragm compressor of equivalent capacity would consume 28\u201335 kW\/m\u00b3\/min, while oil-lubricated screw compressors at 2.00 MPa typically exceed 20 kW\/m\u00b3\/min.<\/p>\n

The primary economic advantage of the ZW-5.4\/6~20 is the elimination of multiple compressors<\/strong> in facilities with variable pressure requirements. A facility requiring nitrogen at 0.60 MPa, 1.20 MPa, and 2.00 MPa would traditionally need three separate compressors or one compressor plus two pressure-reducing stations. The ZW-5.4\/6~20 replaces this entire infrastructure with a single unit, reducing capital expenditure by 40\u201360% and maintenance complexity by a similar margin. The Coste total de propiedad para la compresi\u00f3n de nitr\u00f3geno<\/a> in variable-pressure applications is dominated by equipment count and maintenance labor rather than marginal energy efficiency.<\/p>\n

The oil-free design further reduces TCO by eliminating oil-related consumables. A typical lubricated compressor of this size and pressure range consumes 80\u2013150 liters of lubricating oil annually, plus filter elements, separator cartridges, and waste oil disposal costs totaling $1,500\u2013$3,000\/year. The ZW-5.4\/6~20 removes these expenses entirely.<\/p>\n<\/div>\n

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Capacidades de personalizaci\u00f3n y fabricaci\u00f3n de equipos originales (OEM)<\/h2>\n

We provide flexible customization options to adapt the ZW-5.4\/6~20 to specific installation constraints and end-user requirements:<\/p>\n