{"id":582,"date":"2026-07-20T08:48:03","date_gmt":"2026-07-20T08:48:03","guid":{"rendered":"https:\/\/n2-compressor.com\/?post_type=product&p=582"},"modified":"2026-07-20T08:48:08","modified_gmt":"2026-07-20T08:48:08","slug":"3zw-9-5-30-nitrogen-compressor","status":"publish","type":"product","link":"https:\/\/n2-compressor.com\/sv\/product\/3zw-9-5-30-nitrogen-compressor\/","title":{"rendered":"3ZW-9.5\/30 kv\u00e4vgaskompressor \u2013 Trestegs oljefri N2-booster f\u00f6r 3,00 MPa h\u00f6gtrycksprocesstill\u00e4mpningar"},"content":{"rendered":"
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3ZW-9.5\/30 kv\u00e4vgaskompressor \u2013 Trestegs oljefri N2-booster f\u00f6r 3,00 MPa h\u00f6gtrycksprocesstill\u00e4mpningar<\/h1>\n

3ZW-9.5\/30 \u00e4r konstruerad f\u00f6r att leverera 9,5 m\u00b3\/min vid 3,00 MPa utloppstryck och \u00e4r en trestegs, treradig oljefri kolvkompressor med kv\u00e4ve, avsedd f\u00f6r ultrah\u00f6gtrycksinsprutning av kv\u00e4ve, gasflaskp\u00e5fyllningsstationer och kr\u00e4vande kemiska processapplikationer. Noll oljekontaminering, flerstegs termodynamisk optimering och byggd f\u00f6r kontinuerlig drift vid extremt tryck.<\/p>\n

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

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Produkt\u00f6versikt<\/h2>\n

De 3ZW-9.5\/30 nitrogen compressor<\/strong> represents the pinnacle of our oil-free piston compressor technology, engineered specifically for applications demanding both substantial flow capacity and ultra-high discharge pressure. With a rated capacity of 9.5 m\u00b3\/min<\/strong> och en exceptionell 3,00 MPa utloppstryck<\/strong>, this unit occupies the high-pressure segment of our industrial nitrogen compressor portfolio, addressing the most demanding process requirements in chemical synthesis, gas cylinder filling, and high-pressure inerting operations.<\/p>\n

What distinguishes the 3ZW-9.5\/30 from conventional alternatives is its three-stage compression architecture<\/strong> combined with a fully oil-free compression pathway. The piston rings and rider bands in all three stages are precision-machined from advanced self-lubricating PTFE composite materials that operate without hydrocarbon lubricants. This intrinsic oil-free characteristic ensures the nitrogen stream remains completely uncontaminated, achieving ISO 8573-1 Klass 0-certifiering<\/strong> natively. For operators in pharmaceutical manufacturing, electronics fabrication, and food-grade gas production, this eliminates the capital expenditure and ongoing maintenance burden of downstream oil-removal filtration systems that would be mandatory with lubricated alternatives.<\/p>\n

Kompressorn anv\u00e4nder en three-stage, three-row (\u4e09\u5217\u4e09\u7ea7)<\/strong> configuration that is thermodynamically essential for achieving the 3.00 MPa discharge pressure from typical inlet conditions. The overall pressure ratio of approximately 30:1 to 60:1 is distributed across three compression cylinders, with each stage operating at a manageable pressure ratio. Independent intercoolers between stages remove the substantial heat of compression, maintaining discharge temperatures within safe operating limits and preserving the integrity of the PTFE sealing elements. The robust cast-iron frame and dynamically balanced forged steel crankshaft are rated for a minimum service life of 120 000 timmar<\/strong> enligt standardiserade underh\u00e5llsprotokoll.<\/p>\n

\"3ZW-9.5\/30<\/p>\n<\/div>\n

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Technical Specifications \u2013 3ZW-9.5\/30<\/h2>\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>\n3ZW-9.5\/30<\/td>\n\u2013<\/td>\n<\/tr>\n
M\u00f6nster<\/td>\nThree-stage, Three-row (\u4e09\u5217\u4e09\u7ea7)<\/td>\n\u2013<\/td>\n<\/tr>\n
Kapacitet<\/td>\n9.5<\/td>\nm\u00b3\/min<\/td>\n<\/tr>\n
Utloppstryck<\/td>\n3.00<\/td>\nMPa<\/td>\n<\/tr>\n
Kompressorstorlek (L \u00d7 B \u00d7 H)<\/td>\n1845 \u00d7 1660 \u00d7 2360<\/td>\nmm<\/td>\n<\/tr>\n
Vikt<\/td>\n3.50<\/td>\nt<\/td>\n<\/tr>\n
Driva<\/td>\n110<\/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

* Alla specifikationer \u00e4r klassade vid standardreferensf\u00f6rh\u00e5llanden (ISO 1217, bilaga C). Faktisk prestanda kan variera beroende p\u00e5 platsens h\u00f6jd \u00f6ver havet, omgivningstemperatur och inloppsf\u00f6rh\u00e5llanden.<\/em><\/p>\n<\/div>\n

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Viktiga funktioner och tekniska f\u00f6rdelar<\/h2>\n

1. Three-Stage Compression for Ultra-High Pressure<\/h3>\n

The 3ZW-9.5\/30 employs a three-stage compression architecture<\/strong> that is thermodynamically essential for achieving 3.00 MPa discharge pressure from atmospheric or low-pressure inlet conditions. The overall pressure ratio is distributed across three compression cylinders\u2014low-pressure, medium-pressure, and high-pressure\u2014each operating at a pressure ratio of approximately 3:1 to 4:1. This staged approach limits the discharge temperature of each stage to below 155\u00b0C, preventing thermal degradation of the PTFE sealing elements and extending valve plate life by approximately 50% compared to two-stage designs attempting equivalent pressure ratios. Two independent intercoolers between stages remove the heat of compression, maintaining optimal thermodynamic efficiency throughout the compression path.<\/p>\n

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

All three compression stages utilize a proprietary sj\u00e4lvsm\u00f6rjande kolvring och ryttarbandsenhet<\/strong> manufactured from high-density PTFE composites reinforced with glass fiber and bronze particulates. This material achieves a coefficient of friction below 0.06 without any external hydrocarbon lubrication. At 3.00 MPa discharge pressure, the partial pressure of oil vapor would be approximately 10 times higher than at 0.30 MPa, making oil contamination exponentially more problematic. The oil-free design achieves ISO 8573-1 klass 0-certifiering direkt<\/strong>, eliminating the need for downstream coalescing filters, activated carbon adsorbers, and oil monitoring instrumentation that would be mandatory with lubricated alternatives. The PTFE formulation is specially rated for continuous operation at temperatures up to 185\u00b0C, ensuring reliable sealing integrity under the extreme thermal stress of ultra-high-pressure compression.<\/p>\n

3. Three-Row Force-Balanced Frame Design<\/h3>\n

Huvudramen \u00e4r gjuten av GG25 gr\u00e5tt gjutj\u00e4rn<\/strong> (equivalent to ASTM A48 Class 30B) with reinforced wall sections and integral cooling water passages. The treradigt motst\u00e5ende cylindrarrangemang<\/strong> provides progressive force cancellation across the crankshaft, with the first and third cylinders opposing the second cylinder to achieve near-complete first-order force balance. This mechanical sophistication reduces the unbalanced inertia forces transmitted to the foundation by over 85% compared to single-row designs of equivalent capacity. The result is a remarkably smooth-running high-pressure compressor that can operate on a standard reinforced concrete pad without the massive inertia blocks typically required for high-pressure reciprocating machines.<\/p>\n

4. Standard 380V Drive with High Efficiency<\/h3>\n

The 3ZW-9.5\/30 is driven by a 110 kW, 380V, 50Hz three-phase induction motor<\/strong> conforming to IEC 60034-1 efficiency class IE3. Despite the substantial power requirement for three-stage compression, the standard low-voltage configuration integrates directly into existing 380V industrial distribution panels without requiring medium-voltage switchgear. This electrical accessibility makes the 3ZW-9.5\/30 available to a wide range of industrial facilities, from small gas filling stations to medium-scale chemical plants, without electrical infrastructure upgrades.<\/p>\n

\"3ZW-9.5\/30<\/p>\n<\/div>\n

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Applikationsscenarier<\/h2>\n

H\u00f6gtrycks-kv\u00e4vgasflaskp\u00e5fyllningsstationer<\/h3>\n

The 3ZW-9.5\/30 is purpose-built for kv\u00e4vgasflaskp\u00e5fyllningsoperationer<\/strong> where gas must be compressed to the 15\u201320 MPa pressure required for standard industrial gas cylinders. While the compressor’s 3.00 MPa discharge pressure does not reach final cylinder filling pressure directly, it serves as a highly efficient primary booster that dramatically reduces the compression ratio required of downstream high-pressure filling compressors. The three-stage design is particularly advantageous for cylinder filling because it provides a stable, cool intermediate pressure that improves the efficiency and longevity of the final high-pressure stage. The oil-free certification is mandatory for cylinder filling because any oil contamination would be trapped in the cylinders and delivered to end-users, potentially compromising critical processes in healthcare, electronics, and food applications.<\/p>\n

\"3ZW-9.5\/30<\/p>\n

Chemical Synthesis & High-Pressure Reactor Inerting<\/h3>\n

In chemical process plants, the 3ZW-9.5\/30 nitrogen compressor<\/a> provides ultra-high-pressure nitrogen for h\u00f6gtrycksreaktorinerting, konservering av katalysatorb\u00e4dd och extraktionsprocesser f\u00f6r superkritiska v\u00e4tskor<\/strong>. The 3.00 MPa discharge pressure is sufficient to maintain inert atmospheres in reactors operating at pressures up to 2.5 MPa, ensuring positive nitrogen flow into the vessel even during pressure transients. The three-stage design provides excellent pressure stability, which is critical for chemical processes where nitrogen pressure fluctuations could affect reaction kinetics or product quality. The oil-free design prevents catalyst poisoning and product contamination that would occur with even trace oil carryover.<\/p>\n

Oil & Gas Pipeline Pressure Testing<\/h3>\n

In the oil and gas industry, nitrogen is the preferred medium for hydrostatic and pneumatic pressure testing of pipelines, pressure vessels, and wellhead equipment<\/strong> because it is inert and avoids the corrosion and contamination risks associated with water testing. The 3ZW-9.5\/30’s 3.00 MPa discharge pressure is suitable for testing pipelines and equipment rated up to API Class 600 (2.5 MPa working pressure). The oil-free design is essential because any oil contamination in the test nitrogen could be mistaken for pipeline corrosion products or residual hydrocarbons, leading to false test results and costly re-testing. The 9.5 m\u00b3\/min capacity allows rapid pressurization of large-diameter pipelines, reducing test cycle time and improving project productivity.<\/p>\n

\"3ZW-9.5\/30<\/p>\n

Electronics Ultra-High-Purity Nitrogen Supply<\/h3>\n

Semiconductor fabrication facilities require nitrogen at elevated pressure for wafer transport system pressurization, chemical vapor deposition (CVD) chamber purge, and high-pressure drying of photolithography equipment<\/strong>. The 3ZW-9.5\/30’s 3.00 MPa discharge pressure drives high-velocity nitrogen jets used in precision cleaning and particle removal applications. The oil-free design is absolutely non-negotiable in semiconductor manufacturing where even sub-ppb oil contamination can cause catastrophic defects in nanometer-scale integrated circuits. The three-stage compression provides exceptionally stable discharge pressure, which is critical for maintaining consistent process conditions in deposition and etching equipment.<\/p>\n<\/div>\n

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Material och konstruktion<\/h2>\n

The 3ZW-9.5\/30 is constructed from premium materials selected for ultra-high-pressure nitrogen compatibility, thermal resistance, and extended operational life:<\/p>\n

\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
Cylinder Block (MP)<\/td>\nGr\u00e5tt gjutj\u00e4rn<\/td>\nGG25 \/ HT250, f\u00f6rst\u00e4rkt v\u00e4gg + ribbning<\/td>\n<\/tr>\n
Cylinderblock (hk)<\/td>\nGr\u00e5tt gjutj\u00e4rn<\/td>\nGG25 \/ HT250, heavy-duty reinforced casting<\/td>\n<\/tr>\n
Vevaxel<\/td>\nSmidd legeringsst\u00e5l<\/td>\n42CrMo4, Q&T, ISO 1940 G2.5 dynamiskt balanserad<\/td>\n<\/tr>\n
Piston Rings (All Stages)<\/td>\nPTFE-glas-bronskomposit<\/td>\nH\u00f6gtrycksklassad, sj\u00e4lvsm\u00f6rjande, max 185\u00b0C<\/td>\n<\/tr>\n
Ryttarband<\/td>\nPTFE-komposit<\/td>\nKolvstyrning, slitageskydd, slitage <0,04 mm\/1000h<\/td>\n<\/tr>\n
Ventilplattor<\/td>\nRostfritt st\u00e5l<\/td>\nSS316, high-pressure concentric ring spring design<\/td>\n<\/tr>\n
Intercoolers (2 enheter)<\/td>\nKolst\u00e5lsskal \/ SS316-r\u00f6r<\/td>\nASME VIII Div.1, 1,5\u00d7 vattentest, 30 min h\u00e5lltid<\/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 900 fl\u00e4nsar<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Alla tryckb\u00e4rande komponenter \u00e4r konstruerade och tillverkade i strikt enlighet med ASME BPVC avsnitt VIII division 1<\/strong> eller kinesiska GB 150-standarder. Varje svetsfog genomg\u00e5r 100% radiografisk inspektion (RT) enligt ASME avsnitt V, artikel 2, och varje f\u00e4rdigst\u00e4llt tryckk\u00e4rl uts\u00e4tts f\u00f6r ett hydrostatiskt tryckprov vid 1,5 g\u00e5nger det maximalt till\u00e5tna arbetstrycket (MAWP) under en minsta h\u00e5llperiod p\u00e5 30 minuter. H\u00f6gtrycksr\u00f6rsystem \u00e4r tillverkade av s\u00f6ml\u00f6s SS316 med ANSI klass 900 fl\u00e4nsanslutningar f\u00f6r att s\u00e4kerst\u00e4lla l\u00e4ckaget\u00e4thet vid 3,00 MPa driftstryck.<\/p>\n

\"3ZW-9.5\/30<\/p>\n<\/div>\n

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Installations- och underh\u00e5llsriktlinjer<\/h2>\n

Grund- och strukturkrav<\/h3>\n

The 3ZW-9.5\/30 has a dry weight of 3.50 tonnes and a center of gravity approximately 850 mm above the baseplate. Despite the three-stage high-pressure operation, the three-row opposed-cylinder design achieves excellent force balance, permitting installation on a armerad betongblock p\u00e5 6\u20138 ton<\/strong>. The block should be mounted on elastomeric vibration isolators (natural frequency 7\u201310 Hz). Minimum clearance requirements: 1.2 m on the non-drive side for valve access, 1.0 m on the drive side for motor maintenance, and 1.5 m overhead for crane access. The high-pressure discharge piping (3.00 MPa) requires special attention to support and anchoring to prevent vibration-induced fatigue and ensure personnel safety.<\/p>\n

Design av kylvattensystem<\/h3>\n

Kylvattenbehovet \u00e4r ungef\u00e4r 22 m\u00b3\/h<\/strong> at an inlet temperature not exceeding 32\u00b0C. The water distribution circuit supplies three cylinder jacket circuits and two intercoolers in a parallel\/series hybrid arrangement optimized for thermal management. Given the extreme pressure ratio, both intercoolers are critical for preserving PTFE ring integrity and must receive adequate cooling water flow at all times. 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 strongly recommended.<\/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>\nCheck vibration, abnormal noise, cooling water flow, all stage discharge pressures and temperatures<\/td>\n<\/tr>\n
250 timmar<\/td>\nInspektion av ventilplatta (alla steg)<\/td>\nRemove and inspect all suction\/discharge valves for carbon deposits, spring fatigue, cracking<\/td>\n<\/tr>\n
1 000 timmar<\/td>\nBed\u00f6mning av kolvringsslitage (alla steg)<\/td>\nMeasure groove clearance on all stages; replace rings if clearance exceeds 0.18 mm<\/td>\n<\/tr>\n
3 000 timmar<\/td>\nMellan\u00f6versyn<\/td>\nReplace all piston rings, rider bands, and valve plate assemblies on all three stages<\/td>\n<\/tr>\n
6 000 timmar<\/td>\nStor \u00f6versyn<\/td>\nInspect crankshaft journals, measure all bearing clearances, replace bearings if >0.08 mm<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

The oil-free design of the 3ZW-9.5\/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>, which typically achieve 3,000\u20135,000 hours of service life under clean nitrogen conditions. The high-pressure valve plates in the third stage may require more frequent inspection (every 2,000 hours) due to the extreme mechanical stress at 3.00 MPa, but the overall maintenance burden remains significantly lower than oil-lubricated systems.<\/p>\n

\"3ZW-9.5\/30<\/p>\n<\/div>\n

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Efterlevnads- och s\u00e4kerhetscertifieringar<\/h2>\n

The 3ZW-9.5\/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 ultrah\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 extremely elevated. All 3ZW-9.5\/30 installations must incorporate continuous oxygen deficiency monitoring in the compressor room and all adjacent areas. High-pressure discharge piping must be equipped with pressure relief valves rated at 110% of MAWP and rupture discs as secondary protection. All high-pressure piping must be guarded or shielded to protect personnel from jetting in the event of rupture. 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 ultra-high-pressure gas safety protocols before operating or maintaining this equipment. Lock-out\/tag-out procedures are mandatory for all maintenance activities.<\/p>\n<\/div>\n

\"3ZW-9.5\/30<\/p>\n<\/div>\n

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Prestanda- och effektivitetsanalys<\/h2>\n

The 3ZW-9.5\/30 achieves a specific power consumption of approximately 11.58 kW per m\u00b3\/min<\/strong> of nitrogen delivered at 3.00 MPa discharge pressure. This specific power figure reflects the thermodynamic reality of ultra-high-pressure compression through three stages. Within the high-pressure oil-free compressor segment (discharge pressure >2.50 MPa), this efficiency is competitive and significantly superior to diaphragm compressors, which are the primary alternative for oil-free ultra-high-pressure service. For comparison, a diaphragm compressor delivering equivalent capacity and pressure would typically consume 16\u201320 kW\/m\u00b3\/min and cost 4\u20136 times more in capital expenditure.<\/p>\n

Over an 8,000-hour annual operating schedule, the 3ZW-9.5\/30’s efficiency advantage versus diaphragm alternatives yields approximately 340,000\u2013530,000 kWh of annual energy savings<\/strong>. At $0.08\/kWh, this represents $27,200\u2013$42,400 in direct electricity cost reduction per year. However, the primary economic driver for 3ZW-9.5\/30 selection is typically the combination of high capacity, moderate capital cost, and native oil-free operation<\/strong> that is unattainable with other compressor technologies at this pressure level. The total \u00e4gandekostnad f\u00f6r ultrah\u00f6gtryckskv\u00e4vgaskompression<\/a> is reduced by an estimated 40\u201350% over a 10-year operational life when the three-stage piston design is compared to multi-diaphragm systems.<\/p>\n

The three-stage design also provides superior pressure stability compared to single-stage high-pressure compressors, which is critical for process applications where pressure fluctuations could affect product quality or process safety. The inter-stage cooling ensures that each stage operates at optimal thermodynamic efficiency, minimizing the overall power consumption for the required pressure rise.<\/p>\n<\/div>\n

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Anpassning och OEM-funktioner<\/h2>\n

We offer comprehensive customization options to adapt the 3ZW-9.5\/30 to specific site conditions, integration requirements, and end-user specifications:<\/p>\n