{"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\/ms\/product\/3zw-9-5-30-nitrogen-compressor\/","title":{"rendered":"3ZW-9.5\/30 Nitrogen Compressor \u2013 Three-Stage Oil-Free N2 Booster for 3.00 MPa High-Pressure Process Applications"},"content":{"rendered":"
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3ZW-9.5\/30 Nitrogen Compressor \u2013 Three-Stage Oil-Free N2 Booster for 3.00 MPa High-Pressure Process Applications<\/h1>\n

Engineered to deliver 9.5 m\u00b3\/min at 3.00 MPa discharge pressure, the 3ZW-9.5\/30 is a three-stage, three-row oil-free piston nitrogen compressor designed for ultra-high-pressure nitrogen injection, gas cylinder filling stations, and demanding chemical process applications. Zero oil contamination, multi-stage thermodynamic optimization, and built for continuous-duty operation at extreme pressure.<\/p>\n

Minta Sebut Harga<\/a>
\nLihat Siri Pemampat N2<\/a><\/div>\n

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Gambaran Keseluruhan Produk<\/h2>\n

Yang 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> dan yang luar biasa Tekanan pelepasan 3.00 MPa<\/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 Pensijilan ISO 8573-1 Kelas 0<\/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

Pemampat menggunakan 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 jam<\/strong> di bawah protokol penyelenggaraan standard.<\/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>\nNilai<\/th>\nUnit<\/th>\n<\/tr>\n<\/thead>\n
Model<\/td>\n3ZW-9.5\/30<\/td>\n\u2013<\/td>\n<\/tr>\n
Corak<\/td>\nThree-stage, Three-row (\u4e09\u5217\u4e09\u7ea7)<\/td>\n\u2013<\/td>\n<\/tr>\n
Kapasiti<\/td>\n9.5<\/td>\nm\u00b3\/min<\/td>\n<\/tr>\n
Tekanan Pelepasan<\/td>\n3.00<\/td>\nMPa<\/td>\n<\/tr>\n
Saiz Pemampat (P \u00d7 L \u00d7 T)<\/td>\n1845 \u00d7 1660 \u00d7 2360<\/td>\nmm<\/td>\n<\/tr>\n
Berat<\/td>\n3.50<\/td>\nt<\/td>\n<\/tr>\n
Kuasa<\/td>\n110<\/td>\nkW<\/td>\n<\/tr>\n
Voltan<\/td>\n380<\/td>\nV<\/td>\n<\/tr>\n
Medium Gas<\/td>\nNitrogen (N\u2082)<\/td>\n\u2013<\/td>\n<\/tr>\n
Pelinciran<\/td>\nBebas minyak<\/td>\n\u2013<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

* Semua spesifikasi dinilai pada keadaan rujukan standard (ISO 1217, Lampiran C). Prestasi sebenar mungkin berbeza-beza berdasarkan ketinggian tapak, suhu ambien dan keadaan salur masuk.<\/em><\/p>\n<\/div>\n

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Ciri-ciri Utama & Kelebihan Kejuruteraan<\/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 pemasangan cincin omboh pelincir sendiri dan jalur penunggang<\/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 Pensijilan ISO 8573-1 Kelas 0 secara asli<\/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

Kerangka utama dituang dari Besi tuang kelabu GG25<\/strong> (equivalent to ASTM A48 Class 30B) with reinforced wall sections and integral cooling water passages. The three-row opposed-cylinder arrangement<\/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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Senario Aplikasi<\/h2>\n

Stesen Pengisian Silinder Nitrogen Tekanan Tinggi<\/h3>\n

The 3ZW-9.5\/30 is purpose-built for operasi pengisian silinder nitrogen<\/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

Sintesis Kimia & Reaktor Tekanan Tinggi Inersi<\/h3>\n

In chemical process plants, the 3ZW-9.5\/30 nitrogen compressor<\/a> membekalkan nitrogen tekanan ultra tinggi untuk lengai reaktor tekanan tinggi, pemeliharaan lapisan pemangkin dan proses pengekstrakan bendalir superkritikal<\/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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Bahan & Pembinaan<\/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
Komponen<\/th>\nBahan<\/th>\nSpesifikasi<\/th>\n<\/tr>\n<\/thead>\n
Blok Silinder (LP)<\/td>\nBesi Tuang Kelabu<\/td>\nGG25 \/ HT250, ketebalan dinding standard<\/td>\n<\/tr>\n
Cylinder Block (MP)<\/td>\nBesi Tuang Kelabu<\/td>\nGG25 \/ HT250, dinding bertetulang + tulang rusuk<\/td>\n<\/tr>\n
Blok Silinder (HP)<\/td>\nBesi Tuang Kelabu<\/td>\nGG25 \/ HT250, heavy-duty reinforced casting<\/td>\n<\/tr>\n
Aci engkol<\/td>\nKeluli Aloi Tempa<\/td>\n42CrMo4, Q&T, ISO 1940 G2.5 seimbang secara dinamik<\/td>\n<\/tr>\n
Piston Rings (All Stages)<\/td>\nKomposit PTFE-Kaca-Gangsa<\/td>\nTekanan tinggi, pelincir sendiri, maksimum 185\u00b0C<\/td>\n<\/tr>\n
Kumpulan Penunggang<\/td>\nKomposit PTFE<\/td>\nPanduan omboh, anti-calar, kadar haus <0.04 mm\/1000j<\/td>\n<\/tr>\n
Plat Injap<\/td>\nKeluli Tahan Karat<\/td>\nSS316, reka bentuk spring cincin sepusat tekanan tinggi<\/td>\n<\/tr>\n
Intercoolers (2 units)<\/td>\nCangkang Keluli Karbon \/ Tiub SS316<\/td>\nASME VIII Div.1, ujian hidro 1.5\u00d7, tahan 30 minit<\/td>\n<\/tr>\n
Penyejuk Selepas<\/td>\nCangkang Keluli Karbon \/ Tiub SS316<\/td>\nTiub bersirip tekanan tinggi, air penyejuk 32\u00b0C<\/td>\n<\/tr>\n
Paip Tekanan Tinggi<\/td>\nKeluli Tahan Karat yang Lancar<\/td>\nSS316, bebibir ANSI Kelas 900<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Semua komponen galas tekanan direka bentuk dan dikilangkan mengikut ketat ASME BPVC Bahagian VIII Bahagian 1<\/strong> atau piawaian GB 150 Cina. Setiap sambungan kimpalan menjalani pemeriksaan radiografi (RT) 100% mengikut Seksyen V ASME, Artikel 2, dan setiap bekas tekanan yang telah siap tertakluk kepada ujian tekanan hidrostatik pada 1.5 kali ganda tekanan kerja maksimum yang dibenarkan (MAWP) untuk tempoh penahanan minimum selama 30 minit. Sistem perpaipan tekanan tinggi diperbuat daripada SS316 yang lancar dengan sambungan bebibir ANSI Kelas 900 untuk memastikan integriti kedap bocor pada tekanan operasi 3.00 MPa.<\/p>\n

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

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Garis Panduan Pemasangan & Penyelenggaraan<\/h2>\n

Keperluan Asas & Struktur<\/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 blok inersia konkrit bertetulang 6\u20138 tan<\/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

Reka Bentuk Sistem Air Penyejuk<\/h3>\n

Permintaan air penyejuk adalah lebih kurang 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

Jadual Penyelenggaraan Pencegahan<\/h3>\n
\n\n\n\n\n\n\n\n\n\n
Selang masa<\/th>\nItem Perkhidmatan<\/th>\nTindakan Diperlukan<\/th>\n<\/tr>\n<\/thead>\n
Harian<\/td>\nPemeriksaan Operasi<\/td>\nCheck vibration, abnormal noise, cooling water flow, all stage discharge pressures and temperatures<\/td>\n<\/tr>\n
250 jam<\/td>\nValve Plate Inspection (All Stages)<\/td>\nRemove and inspect all suction\/discharge valves for carbon deposits, spring fatigue, cracking<\/td>\n<\/tr>\n
1,000 jam<\/td>\nPiston Ring Wear Assessment (All Stages)<\/td>\nMeasure groove clearance on all stages; replace rings if clearance exceeds 0.18 mm<\/td>\n<\/tr>\n
3,000 jam<\/td>\nBaik Pulih Pertengahan<\/td>\nReplace all piston rings, rider bands, and valve plate assemblies on all three stages<\/td>\n<\/tr>\n
6,000 jam<\/td>\nBaik Pulih Utama<\/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 Cincin omboh PTFE dan jalur penunggang<\/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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Pensijilan Pematuhan & Keselamatan<\/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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Peralatan Tekanan<\/strong>
\nASME BPVC Bahagian VIII Div.1, GB 150-2011, PED 2014\/68\/EU Modul A<\/span><\/div>\n
Keselamatan Elektrik & Mesin<\/strong>
\nIEC 60034-1 (kecekapan IE3), IEC 60204-1, ISO 12100 keselamatan jentera<\/span><\/div>\n
Pensijilan Bebas Minyak<\/strong>
\nISO 8573-1 Kelas 0 (Kandungan Minyak), diuji secara bebas oleh T\u00dcV Rheinland<\/span><\/div>\n
Kualiti & Alam Sekitar<\/strong>
\nISO 9001:2015, ISO 14001:2015<\/span><\/div>\n<\/div>\n
\u26a0\ufe0f Nasihat Keselamatan Kritikal \u2013 Operasi Tekanan Ultra Tinggi<\/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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Analisis Prestasi & Kecekapan<\/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 jumlah kos pemilikan untuk pemampatan nitrogen tekanan ultra tinggi<\/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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Keupayaan Penyesuaian & OEM<\/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