{"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\/sv\/product\/zw-0-97-7-530-nitrogen-compressor\/","title":{"rendered":"ZW-0.97\/7.5~30 kv\u00e4vgaskompressor \u2013 Kompakt variabelt inlopp, oljefri N2-booster f\u00f6r medeltrycks\u00e5tervinning"},"content":{"rendered":"
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ZW-0.97\/7.5~30 kv\u00e4vgaskompressor \u2013 Kompakt variabelt inlopp, oljefri N2-booster f\u00f6r medeltrycks\u00e5tervinning<\/h1>\n

ZW-0.97\/7.5~30 \u00e4r konstruerad f\u00f6r att leverera 0,97 m\u00b3\/min vid 3,00 MPa utloppstryck med 0,75 MPa inloppskapacitet och \u00e4r en tv\u00e5stegs, enradig oljefri kolvkompressor avsedd f\u00f6r sm\u00e5skalig kv\u00e4ve\u00e5tervinning, gasf\u00f6rv\u00e4tskningssystem och processtill\u00e4mpningar med medelh\u00f6gt tryck och varierande inloppsf\u00f6rh\u00e5llanden. Noll oljekontaminering, ultrakompakt format och optimerad f\u00f6r kontinuerlig drift.<\/p>\n

Beg\u00e4r en offert<\/a>
\nVisa N2-kompressorserien<\/a><\/div>\n

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

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Produkt\u00f6versikt<\/h2>\n

De 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 variabel inloppstryckkapacitet<\/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> och ett utloppstryck p\u00e5 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

Kompressorn anv\u00e4nder en tv\u00e5stegs, enkelrad (\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
Parameter<\/th>\nV\u00e4rde<\/th>\nEnhet<\/th>\n<\/tr>\n<\/thead>\n
Modell<\/td>\nZW-0.97\/7.5~30<\/td>\n\u2013<\/td>\n<\/tr>\n
M\u00f6nster<\/td>\nTv\u00e5stegs, enkelrad (\u4e8c\u5217\u4e00\u7ea7)<\/td>\n\u2013<\/td>\n<\/tr>\n
Kapacitet<\/td>\n0.97 (inlet 0.75 MPa)<\/td>\nm\u00b3\/min<\/td>\n<\/tr>\n
Utloppstryck<\/td>\n3.00<\/td>\nMPa<\/td>\n<\/tr>\n
Inloppstryckomr\u00e5de<\/td>\n0.75 ~ 3.00<\/td>\nMPa<\/td>\n<\/tr>\n
Kompressorstorlek (L \u00d7 B \u00d7 H)<\/td>\n2035 \u00d7 1240 \u00d7 2234<\/td>\nmm<\/td>\n<\/tr>\n
Vikt<\/td>\n2.60<\/td>\nt<\/td>\n<\/tr>\n
Driva<\/td>\n45<\/td>\nkW<\/td>\n<\/tr>\n
Sp\u00e4nning<\/td>\n380<\/td>\nV<\/td>\n<\/tr>\n
Gasmedium<\/td>\nKv\u00e4ve (N\u2082)<\/td>\n\u2013<\/td>\n<\/tr>\n
Sm\u00f6rjning<\/td>\nOljefri<\/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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Viktiga funktioner och tekniska f\u00f6rdelar<\/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

P\u00e5 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 sj\u00e4lvsm\u00f6rjande kolvring och ryttarbandsenhet<\/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 trefas induktionsmotor<\/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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Applikationsscenarier<\/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 kv\u00e4ve\u00e5tervinningskompressor<\/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

Forskningslaboratorier och kemiska fabriker i pilotskala kr\u00e4ver h\u00f6gtryckskv\u00e4vgas f\u00f6r 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

Tryckh\u00e5llning f\u00f6r mellantrycksr\u00f6r<\/h3>\n

Industrial facilities with medium-pressure nitrogen distribution headers (0.75\u20131.50 MPa) often require a tryckh\u00e5llningskompressor<\/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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Material och konstruktion<\/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
Komponent<\/th>\nMaterial<\/th>\nSpecifikation<\/th>\n<\/tr>\n<\/thead>\n
Cylinderblock (LP)<\/td>\nGr\u00e5tt gjutj\u00e4rn<\/td>\nGG25 \/ HT250, standardv\u00e4ggtjocklek<\/td>\n<\/tr>\n
Cylinderblock (hk)<\/td>\nGr\u00e5tt gjutj\u00e4rn<\/td>\nGG25 \/ HT250, f\u00f6rst\u00e4rkt v\u00e4gg + ribbning<\/td>\n<\/tr>\n
Vevaxel<\/td>\nSmidd legeringsst\u00e5l<\/td>\n42CrMo4, Q&T, dynamiskt balanserad<\/td>\n<\/tr>\n
Kolvringar<\/td>\nPTFE-glas-bronskomposit<\/td>\nH\u00f6gtrycksklassad, sj\u00e4lvsm\u00f6rjande, max 180\u00b0C<\/td>\n<\/tr>\n
Ryttarband<\/td>\nPTFE-komposit<\/td>\nKolvstyrning, anti-repning<\/td>\n<\/tr>\n
Ventilplattor<\/td>\nRostfritt st\u00e5l<\/td>\nSS316, koncentrisk ringkonstruktion med h\u00f6gt tryck<\/td>\n<\/tr>\n
Intercooler<\/td>\nKolst\u00e5lsskal \/ SS316-r\u00f6r<\/td>\nASME VIII Div.1, 1,5\u00d7 vattenprovning<\/td>\n<\/tr>\n
Efterkylare<\/td>\nKolst\u00e5lsskal \/ SS316-r\u00f6r<\/td>\nH\u00f6gtrycksfl\u00e4nsr\u00f6r, 32\u00b0C kylvatten<\/td>\n<\/tr>\n
H\u00f6gtrycksr\u00f6rledningar<\/td>\nS\u00f6ml\u00f6st rostfritt st\u00e5l<\/td>\nSS316, ANSI klass 600 fl\u00e4nsar<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Alla tryckb\u00e4rande komponenter \u00e4r konstruerade och tillverkade i enlighet med ASME BPVC avsnitt VIII division 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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Installations- och underh\u00e5llsriktlinjer<\/h2>\n

Grund- och rumskrav<\/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 armerad betongplatta p\u00e5 4\u20135 ton<\/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

Specifikationer f\u00f6r kylvatten<\/h3>\n

Kylvattenbehovet \u00e4r ungef\u00e4r 8 m\u00b3\/h<\/strong> vid en inloppstemperatur som inte \u00f6verstiger 32 \u00b0C. Vattendistributionskretsen f\u00f6rs\u00f6rjer cylindermantlarna och intercoolern parallellt. Med tanke p\u00e5 det h\u00f6ga tryckf\u00f6rh\u00e5llandet \u00e4r intercoolern avg\u00f6rande f\u00f6r termisk styrning och m\u00e5ste prioriteras kylvattenfl\u00f6de. Specifikationer f\u00f6r vattenkvalitet: pH 6,5\u20138,5, totalt l\u00f6st material < 500 mg\/L, kloridhalt < 50 mg\/L (f\u00f6r att f\u00f6rhindra korrosion av SS316-r\u00f6r), suspenderat material < 30 mg\/L och total h\u00e5rdhet < 300 mg\/L som CaCO\u2083. Ett slutet kyltorn med sidostr\u00f6msfiltrering rekommenderas f\u00f6r anl\u00e4ggningar med marginell vattenkvalitet.<\/p>\n

Schema f\u00f6r f\u00f6rebyggande underh\u00e5ll<\/h3>\n
\n\n\n\n\n\n\n\n\n\n
Intervall<\/th>\nServiceartikel<\/th>\n\u00c5tg\u00e4rd kr\u00e4vs<\/th>\n<\/tr>\n<\/thead>\n
Dagligen<\/td>\nDriftsinspektion<\/td>\nKontrollera vibrationer, onormalt ljud, kylvattenfl\u00f6de, utloppstryck, temperatur<\/td>\n<\/tr>\n
250 timmar<\/td>\nInspektion av ventilplatta<\/td>\nTa bort och inspektera sug-\/utloppsventilerna f\u00f6r kolavlagringar, fj\u00e4derutmattning och sprickbildning.<\/td>\n<\/tr>\n
1 000 timmar<\/td>\nBed\u00f6mning av kolvringsslitage<\/td>\nM\u00e4t ringsp\u00e5rens spel; byt ut ringarna om spelet \u00f6verstiger 0,20 mm<\/td>\n<\/tr>\n
3 000 timmar<\/td>\nMellan\u00f6versyn<\/td>\nByt ut alla kolvringar, rytmband och ventilplattenheter<\/td>\n<\/tr>\n
6 000 timmar<\/td>\nStor \u00f6versyn<\/td>\nKontrollera vevaxelns lagertappar, m\u00e4t huvudlagerspelet, byt lager om >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 PTFE-kolvringar och ryttarband<\/strong>, som vanligtvis uppn\u00e5r 3 000\u20135 000 timmars livsl\u00e4ngd under rena kv\u00e4vgasf\u00f6rh\u00e5llanden. H\u00f6gtrycksventilplattorna kan kr\u00e4va mer frekvent inspektion \u00e4n l\u00e5gtrycksekvivalenter p\u00e5 grund av \u00f6kad mekanisk belastning, men den totala underh\u00e5llsb\u00f6rdan f\u00f6rblir betydligt l\u00e4gre \u00e4n oljesmorda system.<\/p>\n

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

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Efterlevnads- och s\u00e4kerhetscertifieringar<\/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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Tryckutrustning<\/strong>
\nASME BPVC Sektion VIII Div.1, GB 150-2011, PED 2014\/68\/EU Modul A<\/span><\/div>\n
El- och maskins\u00e4kerhet<\/strong>
\nIEC 60034-1 (IE3 effektivitet), IEC 60204-1, ISO 12100 maskins\u00e4kerhet<\/span><\/div>\n
Oljefri certifiering<\/strong>
\nISO 8573-1 Klass 0 (oljeinneh\u00e5ll), oberoende testad av T\u00dcV Rheinland<\/span><\/div>\n
Kvalitet och milj\u00f6<\/strong>
\nISO 9001:2015, ISO 14001:2015<\/span><\/div>\n<\/div>\n
\u26a0\ufe0f Viktiga s\u00e4kerhetsr\u00e5d \u2013 drift under h\u00f6gt tryck<\/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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Prestanda- och effektivitetsanalys<\/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 f\u00f6rm\u00e5ga att acceptera h\u00f6gtrycksinlopp utan energisl\u00f6sande tryckreduktion<\/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 \u00e4gandekostnad f\u00f6r kv\u00e4ve\u00e5tervinningskompression<\/a> minskas med uppskattningsvis 30\u201340% under en 10-\u00e5rig driftstid.<\/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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Anpassning och OEM-funktioner<\/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