{"id":579,"date":"2026-07-20T07:54:21","date_gmt":"2026-07-20T07:54:21","guid":{"rendered":"https:\/\/n2-compressor.com\/?post_type=product&p=579"},"modified":"2026-07-20T07:54:21","modified_gmt":"2026-07-20T07:54:21","slug":"zw-0-97-7-530-nitrogen-compressor","status":"publish","type":"product","link":"https:\/\/n2-compressor.com\/pt\/produto\/zw-0-97-7-530-nitrogen-compressor\/","title":{"rendered":"Compressor de nitrog\u00eanio ZW-0.97\/7.5~30 \u2013 Booster de N2 compacto, isento de \u00f3leo e com entrada vari\u00e1vel para recircula\u00e7\u00e3o de m\u00e9dia press\u00e3o"},"content":{"rendered":"
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Compressor de nitrog\u00eanio ZW-0.97\/7.5~30 \u2013 Booster de N2 compacto, isento de \u00f3leo e com entrada vari\u00e1vel para recircula\u00e7\u00e3o de m\u00e9dia press\u00e3o<\/h1>\n

Projetado para fornecer 0,97 m\u00b3\/min a uma press\u00e3o de descarga de 3,00 MPa com capacidade de entrada de 0,75 MPa, o ZW-0.97\/7.5~30 \u00e9 um compressor de nitrog\u00eanio de pist\u00e3o isento de \u00f3leo, de dois est\u00e1gios e fileira \u00fanica, desenvolvido para reciclagem de nitrog\u00eanio em pequena escala, circuitos de refor\u00e7o de liquefa\u00e7\u00e3o de g\u00e1s e aplica\u00e7\u00f5es de processo de m\u00e9dia press\u00e3o com condi\u00e7\u00f5es de entrada vari\u00e1veis. Zero contamina\u00e7\u00e3o por \u00f3leo, tamanho ultracompacto e otimizado para opera\u00e7\u00e3o cont\u00ednua.<\/p>\n

Solicite um or\u00e7amento<\/a>
\nVeja a s\u00e9rie de compressores N2<\/a><\/div>\n

\"ZW-0.97\/7.5~30<\/p>\n<\/div>\n

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Vis\u00e3o geral do produto<\/h2>\n

O ZW-0.97\/7.5~30 nitrogen compressor<\/strong> is a compact yet capable solution within our oil-free piston compressor family, distinguished by its variable inlet pressure capability<\/strong> spanning from 0.75 MPa up to the discharge pressure of 3.00 MPa. With a rated capacity of 0.97 m\u00b3\/min<\/strong> e uma press\u00e3o de descarga de 3,00 MPa<\/strong>, this unit occupies the entry-level segment of our high-pressure nitrogen compressor portfolio while maintaining the same engineering rigor as our larger models.<\/p>\n

What makes the ZW-0.97\/7.5~30 unique is its ability to accept inlet nitrogen at pressures up to 0.75 MPa, as indicated by the model designation “7.5~30” (representing inlet pressure range of 0.75 MPa to 3.0 MPa). This variable inlet capability eliminates the need for upstream pressure reduction when feeding from medium-pressure nitrogen headers or process vents, improving overall system efficiency and reducing pressure losses. The compressor can also operate from atmospheric or low-pressure inlet when required, providing exceptional operational flexibility for small-scale installations.<\/p>\n

O compressor emprega um two-stage, single-row (\u4e8c\u5217\u4e00\u7ea7)<\/strong> configuration that is optimized for the moderate pressure ratio required when boosting from 0.75 MPa to 3.00 MPa. The single-row design minimizes mechanical complexity and footprint while the two-stage arrangement ensures efficient thermodynamic performance and manageable discharge temperatures. Each stage features independent cooling, preserving the integrity of the PTFE sealing elements even under sustained operation at elevated pressure.<\/p>\n

\"ZW-0.97\/7.5~30<\/p>\n<\/div>\n

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Technical Specifications \u2013 ZW-0.97\/7.5~30<\/h2>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Par\u00e2metro<\/th>\nValor<\/th>\nUnidade<\/th>\n<\/tr>\n<\/thead>\n
Modelo<\/td>\nZW-0.97\/7.5~30<\/td>\n\u2013<\/td>\n<\/tr>\n
Padr\u00e3o<\/td>\nTwo-stage, Single-row (\u4e8c\u5217\u4e00\u7ea7)<\/td>\n\u2013<\/td>\n<\/tr>\n
Capacidade<\/td>\n0.97 (inlet 0.75 MPa)<\/td>\nm\u00b3\/min<\/td>\n<\/tr>\n
Press\u00e3o de descarga<\/td>\n3.00<\/td>\nMPa<\/td>\n<\/tr>\n
Inlet Pressure Range<\/td>\n0.75 ~ 3.00<\/td>\nMPa<\/td>\n<\/tr>\n
Dimens\u00f5es do compressor (C \u00d7 L \u00d7 A)<\/td>\n2035 \u00d7 1240 \u00d7 2234<\/td>\nmm<\/td>\n<\/tr>\n
Peso<\/td>\n2.60<\/td>\nt<\/td>\n<\/tr>\n
Poder<\/td>\n45<\/td>\nkW<\/td>\n<\/tr>\n
Tens\u00e3o<\/td>\n380<\/td>\nV<\/td>\n<\/tr>\n
Meio gasoso<\/td>\nNitrog\u00eanio (N\u2082)<\/td>\n\u2013<\/td>\n<\/tr>\n
Lubrifica\u00e7\u00e3o<\/td>\nSem \u00f3leo<\/td>\n\u2013<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

* All specifications are rated at standard reference conditions (ISO 1217, Annex C). Actual performance may vary based on site altitude, ambient temperature, and inlet conditions. Capacity is specified at 0.75 MPa inlet pressure; actual capacity varies with inlet pressure.<\/em><\/p>\n<\/div>\n

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Principais caracter\u00edsticas e vantagens de engenharia<\/h2>\n

1. Variable Inlet Pressure Capability (0.75\u20133.00 MPa)<\/h3>\n

The ZW-0.97\/7.5~30 is uniquely engineered to accept inlet nitrogen across a broad pressure range from 0.75 MPa up to 3.00 MPa<\/strong>. This variable inlet capability is achieved through a robust valve design and cylinder sizing that accommodates varying suction densities without mechanical distress. When fed from a medium-pressure nitrogen header at 0.75 MPa, the compressor operates at its rated 0.97 m\u00b3\/min capacity. As inlet pressure increases toward the discharge pressure, the compressor transitions into a pressure-maintaining or recycle mode with progressively reduced power consumption. This flexibility eliminates the need for upstream pressure regulators or throttling valves that would waste energy and create noise, making the ZW-0.97\/7.5~30 ideal for nitrogen recycle loops and process systems with variable upstream pressure.<\/p>\n

2. Ultra-Compact Footprint for Space-Constrained Installations<\/h3>\n

No 2035 \u00d7 1240 \u00d7 2234 mm<\/strong>, the ZW-0.97\/7.5~30 occupies less than 2.5 m\u00b2 of floor space, making it one of the most compact high-pressure oil-free nitrogen compressors available. This dimensional efficiency is achieved through a vertically oriented crankcase design and a single-row cylinder arrangement that minimizes the machine’s longitudinal footprint. At just 2.60 tonnes<\/strong>, the unit can be transported and positioned using standard forklift equipment, eliminating the need for overhead cranes or specialized rigging. This compact form factor is particularly valuable for retrofit installations in existing process plants, containerized systems, and mobile nitrogen supply units where floor space is at a premium.<\/p>\n

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

The ZW-0.97\/7.5~30 utilizes a proprietary conjunto de anel de pist\u00e3o autolubrificante e cinta de guia<\/strong> manufactured from high-performance PTFE composites reinforced with glass fiber and bronze particulates. This material achieves a coefficient of friction below 0.06 without any external hydrocarbon lubrication, ensuring the nitrogen stream remains completely free of oil contamination. At 3.00 MPa discharge pressure, the partial pressure of any oil vapor would be significantly magnified, making oil-free design absolutely essential for applications requiring high-purity nitrogen. The PTFE formulation is specifically rated for continuous operation at temperatures up to 180\u00b0C, ensuring reliable sealing integrity under the thermal stress of high-pressure compression.<\/p>\n

4. Standard 380V Drive with Low Power Consumption<\/h3>\n

The ZW-0.97\/7.5~30 is driven by a 45 kW, 380V, 50Hz three-phase induction motor<\/strong> conforming to IEC 60034-1 efficiency class IE3. The modest power requirement of 45 kW makes this unit accessible to virtually any industrial facility with standard 380V distribution, without requiring electrical infrastructure upgrades or medium-voltage switchgear. The low power consumption also translates to lower operating costs and reduced cooling requirements, making the ZW-0.97\/7.5~30 an economically attractive option for small to medium nitrogen systems.<\/p>\n

\"ZW-0.97\/7.5~30<\/p>\n<\/div>\n

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Cen\u00e1rios de aplica\u00e7\u00e3o<\/h2>\n

Small-Scale Nitrogen Recycle & Recovery<\/h3>\n

In small chemical process plants and gas treatment facilities, the ZW-0.97\/7.5~30 serves as a nitrogen recycle compressor<\/strong> that recovers nitrogen from process vents and boosts it back to the required distribution pressure. The variable inlet capability is critical in these applications because the recovered nitrogen may be at any pressure between atmospheric and the process operating pressure. The compressor automatically adapts to the available inlet pressure, maintaining efficient operation across the full range. This recycle capability reduces nitrogen consumption by 30\u201350% compared to once-through systems, delivering substantial operating cost savings for small-scale operations where every efficiency gain matters.<\/p>\n

\"ZW-0.97\/7.5~30<\/p>\n

Gas Liquefaction & Cryogenic Booster Duty<\/h3>\n

In small-scale nitrogen liquefaction plants and cryogenic systems, the ZW-0.97\/7.5~30 nitrogen booster<\/a> compresses nitrogen from the liquefier vaporizer or storage tank to the pressure required for distribution or further processing. The 3.00 MPa discharge pressure is sufficient for feeding high-pressure nitrogen into cryogenic storage systems, driving nitrogen through heat exchangers, or supplying high-pressure process equipment. The variable inlet capability allows the compressor to accept nitrogen directly from the liquefier at its operating pressure, eliminating intermediate pressure reduction and improving overall plant efficiency.<\/p>\n

Pilot Plant & R&D High-Pressure Nitrogen Supply<\/h3>\n

Research laboratories and pilot-scale chemical plants require high-pressure nitrogen for high-pressure reactor inerting, catalyst testing under pressure, and supercritical fluid experiments<\/strong>. The ZW-0.97\/7.5~30’s compact footprint and standard 380V electrical supply make it ideal for installation in laboratory utility rooms or pilot plant buildings. The 3.00 MPa discharge pressure is adequate for most pilot-scale high-pressure applications, while the oil-free certification ensures that nitrogen purity meets the stringent requirements of research-grade experiments and analytical instrumentation. The variable inlet capability is particularly valuable in R&D environments where experimental conditions change frequently.<\/p>\n

\"ZW-0.97\/7.5~30<\/p>\n

Medium-Pressure Header Pressure Maintenance<\/h3>\n

Industrial facilities with medium-pressure nitrogen distribution headers (0.75\u20131.50 MPa) often require a pressure maintenance compressor<\/strong> to compensate for demand fluctuations and pipeline losses. The ZW-0.97\/7.5~30 can accept nitrogen directly from the header at its operating pressure and boost it to 3.00 MPa for high-pressure consumers or back into the header to maintain pressure during peak demand periods. This dual-mode operation provides exceptional operational flexibility and reduces the need for separate compressor units, making it an economically efficient solution for small to medium facilities.<\/p>\n<\/div>\n

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Materiais e constru\u00e7\u00e3o<\/h2>\n

The ZW-0.97\/7.5~30 is constructed from materials selected for high-pressure nitrogen compatibility, thermal resistance, and compact structural integrity:<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Componente<\/th>\nMaterial<\/th>\nEspecifica\u00e7\u00e3o<\/th>\n<\/tr>\n<\/thead>\n
Bloco de Cilindros (LP)<\/td>\nFerro fundido cinzento<\/td>\nGG25 \/ HT250, espessura de parede padr\u00e3o<\/td>\n<\/tr>\n
Bloco de Cilindros (HP)<\/td>\nFerro fundido cinzento<\/td>\nGG25 \/ HT250, parede refor\u00e7ada + nervuras<\/td>\n<\/tr>\n
Cambota<\/td>\nA\u00e7o liga forjado<\/td>\n42CrMo4, Q&T, balanceado dinamicamente<\/td>\n<\/tr>\n
An\u00e9is de Pist\u00e3o<\/td>\nComp\u00f3sito de PTFE-Vidro-Bronze<\/td>\nHigh-pressure rated, self-lubricating, 180\u00b0C max<\/td>\n<\/tr>\n
Pulseiras de motociclista<\/td>\nComp\u00f3sito de PTFE<\/td>\nGuia do pist\u00e3o, anti-arranh\u00f5es<\/td>\n<\/tr>\n
Placas de v\u00e1lvulas<\/td>\nA\u00e7o inoxid\u00e1vel<\/td>\nA\u00e7o inoxid\u00e1vel 316, design de anel conc\u00eantrico de alta press\u00e3o<\/td>\n<\/tr>\n
Intercooler<\/td>\nCarca\u00e7a em a\u00e7o carbono \/ Tubos em a\u00e7o inoxid\u00e1vel 316<\/td>\nASME VIII Div.1, 1.5\u00d7 hydrotest<\/td>\n<\/tr>\n
Resfriador posterior<\/td>\nCarca\u00e7a em a\u00e7o carbono \/ Tubos em a\u00e7o inoxid\u00e1vel 316<\/td>\nTubo aletado de alta press\u00e3o, \u00e1gua de refrigera\u00e7\u00e3o a 32 \u00b0C<\/td>\n<\/tr>\n
Tubula\u00e7\u00e3o de Alta Press\u00e3o<\/td>\nA\u00e7o inoxid\u00e1vel sem emendas<\/td>\nSS316, ANSI Class 600 flanges<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Todos os componentes que suportam press\u00e3o s\u00e3o projetados e fabricados de acordo com ASME BPVC Se\u00e7\u00e3o VIII Divis\u00e3o 1<\/strong> or Chinese GB 150 standards. Every weld joint undergoes 100% radiographic inspection (RT) per ASME Section V, Article 2, and each completed pressure vessel is subjected to a hydrostatic pressure test at 1.5 times the maximum allowable working pressure (MAWP) for a minimum hold period of 30 minutes. High-pressure piping systems are fabricated from seamless SS316 with ANSI Class 600 flanged connections to ensure leak-tight integrity at 3.00 MPa operating pressure.<\/p>\n

\"ZW-0.97\/7.5~30<\/p>\n<\/div>\n

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Diretrizes de Instala\u00e7\u00e3o e Manuten\u00e7\u00e3o<\/h2>\n

Requisitos de Funda\u00e7\u00e3o e Espaciais<\/h3>\n

The ZW-0.97\/7.5~30 has a dry weight of 2.60 tonnes and a center of gravity approximately 700 mm above the baseplate. A reinforced concrete pad of 4\u20135 tonnes<\/strong> is sufficient for stable operation, mounted on elastomeric vibration isolators (natural frequency 8\u201312 Hz). The single-row design generates moderate unbalanced forces that are easily managed with standard foundation practices. Minimum clearance requirements: 1.0 m on the non-drive side for valve access, 0.8 m on the drive side for motor maintenance, and 1.5 m overhead for crane access. Special attention must be paid to the high-pressure discharge piping, which must be properly supported and anchored to prevent vibration-induced fatigue at 3.00 MPa.<\/p>\n

Especifica\u00e7\u00f5es da \u00e1gua de resfriamento<\/h3>\n

A demanda de \u00e1gua para resfriamento \u00e9 de aproximadamente 8 m\u00b3\/h<\/strong> at an inlet temperature not exceeding 32\u00b0C. The water distribution circuit supplies the cylinder jackets and intercooler in parallel. Given the high pressure ratio, the intercooler is critical for thermal management and must receive priority cooling water flow. Water quality specifications: pH 6.5\u20138.5, total dissolved solids < 500 mg\/L, chloride content < 50 mg\/L (to prevent SS316 tube corrosion), suspended solids < 30 mg\/L, and total hardness < 300 mg\/L as CaCO\u2083. A closed-loop cooling tower with side-stream filtration is recommended for sites with marginal water quality.<\/p>\n

Cronograma de Manuten\u00e7\u00e3o Preventiva<\/h3>\n
\n\n\n\n\n\n\n\n\n\n
Intervalo<\/th>\nItem de servi\u00e7o<\/th>\nA\u00e7\u00e3o necess\u00e1ria<\/th>\n<\/tr>\n<\/thead>\n
Di\u00e1rio<\/td>\nInspe\u00e7\u00e3o Operacional<\/td>\nVerificar vibra\u00e7\u00e3o, ru\u00eddo anormal, fluxo de \u00e1gua de refrigera\u00e7\u00e3o, press\u00e3o de descarga e temperatura.<\/td>\n<\/tr>\n
250 horas<\/td>\nInspe\u00e7\u00e3o da placa da v\u00e1lvula<\/td>\nRemova e inspecione as v\u00e1lvulas de suc\u00e7\u00e3o\/descarga quanto a dep\u00f3sitos de carbono, fadiga da mola e rachaduras.<\/td>\n<\/tr>\n
1.000 horas<\/td>\nAvalia\u00e7\u00e3o do desgaste dos an\u00e9is do pist\u00e3o<\/td>\nMe\u00e7a a folga na ranhura do anel; substitua os an\u00e9is se a folga exceder 0,20 mm.<\/td>\n<\/tr>\n
3.000 horas<\/td>\nRevis\u00e3o Intermedi\u00e1ria<\/td>\nSubstitua todos os an\u00e9is de pist\u00e3o, an\u00e9is de guia e conjuntos de placas de v\u00e1lvulas.<\/td>\n<\/tr>\n
6.000 horas<\/td>\nRevis\u00e3o geral<\/td>\nInspecione os munh\u00f5es do virabrequim, me\u00e7a a folga dos mancais principais e substitua os mancais se a folga for superior a 0,08 mm.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

The oil-free design of the ZW-0.97\/7.5~30 dramatically simplifies maintenance compared to lubricated alternatives. There are no oil changes, no oil analysis, no filter replacements, and no separator cartridge changes. The primary consumable wear items are the An\u00e9is de pist\u00e3o e an\u00e9is de guia de PTFE<\/strong>, which typically achieve 3,000\u20135,000 hours of service life under clean nitrogen conditions. The high-pressure valve plates may require more frequent inspection than low-pressure equivalents due to increased mechanical stress, but the overall maintenance burden remains significantly lower than oil-lubricated systems.<\/p>\n

\"ZW-0.97\/7.5~30<\/p>\n<\/div>\n

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Certifica\u00e7\u00f5es de Conformidade e Seguran\u00e7a<\/h2>\n

The ZW-0.97\/7.5~30 nitrogen compressor is designed, manufactured, and tested to meet or exceed the following international standards and regulatory frameworks:<\/p>\n

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Equipamentos sob press\u00e3o<\/strong>
\nASME BPVC Se\u00e7\u00e3o VIII Div.1, GB 150-2011, PED 2014\/68\/EU M\u00f3dulo A<\/span><\/div>\n
Seguran\u00e7a el\u00e9trica e de m\u00e1quinas<\/strong>
\nIEC 60034-1 (efici\u00eancia IE3), IEC 60204-1, ISO 12100 seguran\u00e7a de m\u00e1quinas<\/span><\/div>\n
Certifica\u00e7\u00e3o sem \u00f3leo<\/strong>
\nISO 8573-1 Classe 0 (Teor de \u00d3leo), testado independentemente pela T\u00dcV Rheinland.<\/span><\/div>\n
Qualidade e Meio Ambiente<\/strong>
\nISO 9001:2015, ISO 14001:2015<\/span><\/div>\n<\/div>\n
\u26a0\ufe0f Critical Safety Advisory \u2013 High-Pressure Operation<\/strong><\/p>\n

Nitrogen is classified as a simple asphyxiant gas. At 3.00 MPa discharge pressure, the risk of rapid gas release and oxygen displacement is significantly elevated. All ZW-0.97\/7.5~30 installations must incorporate continuous oxygen deficiency monitoring in the compressor room and adjacent areas. High-pressure discharge piping must be equipped with pressure relief valves rated at 110% of MAWP and rupture discs as secondary protection. Ventilation systems must maintain ambient oxygen above 19.5% per OSHA 29 CFR 1910.146. Emergency shutdown interlocks should activate at 19.5% O\u2082 (alarm) and trigger automatic isolation at 18.0% O\u2082 (hard shutdown). Personnel must be trained in high-pressure gas safety protocols before operating or maintaining this equipment.<\/p>\n<\/div>\n

\"ZW-0.97\/7.5~30<\/p>\n<\/div>\n

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An\u00e1lise de desempenho e efici\u00eancia<\/h2>\n

The ZW-0.97\/7.5~30 achieves a specific power consumption of approximately 46.39 kW per m\u00b3\/min<\/strong> of nitrogen at 3.00 MPa discharge pressure from 0.75 MPa inlet. While this specific power appears high in absolute terms, the true efficiency advantage lies in the ability to accept high-pressure inlet without energy-wasting pressure reduction<\/strong>. When compared to systems that throttle 0.75 MPa nitrogen down to atmospheric pressure before re-compressing to 3.00 MPa, the ZW-0.97\/7.5~30 saves approximately 45\u201355% of the compression energy by utilizing the available inlet pressure directly.<\/p>\n

Over an 8,000-hour annual operating cycle in a typical nitrogen recycle application, the ZW-0.97\/7.5~30’s variable inlet capability yields approximately 80,000\u2013120,000 kWh of energy savings<\/strong> compared to systems requiring upstream pressure reduction. At $0.08\/kWh, this represents $6,400\u2013$9,600 in annual electricity cost reduction. When combined with the elimination of oil-related consumables and the avoidance of downstream purification equipment, the total cost of ownership for nitrogen recycle compression<\/a> is reduced by an estimated 30\u201340% over a 10-year operational life.<\/p>\n

The absence of oil in the compression path is particularly valuable in recycle applications because any oil contamination would accumulate in the closed nitrogen loop, progressively degrading product quality and potentially contaminating process equipment. The ZW-0.97\/7.5~30’s native oil-free design ensures that nitrogen purity is maintained indefinitely in recycle service.<\/p>\n<\/div>\n

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Personaliza\u00e7\u00e3o e capacidades OEM<\/h2>\n

We offer flexible customization options to adapt the ZW-0.97\/7.5~30 to specific site conditions and integration requirements:<\/p>\n