{"id":593,"date":"2026-07-21T05:30:33","date_gmt":"2026-07-21T05:30:33","guid":{"rendered":"https:\/\/n2-compressor.com\/?post_type=product&p=593"},"modified":"2026-07-21T05:30:35","modified_gmt":"2026-07-21T05:30:35","slug":"dw-70-30-nitrogen-compressor-70-m%c2%b3-min-oil-free-n2-booster-for-3-00-mpa-ultra-high-pressure-industrial-process","status":"publish","type":"product","link":"https:\/\/n2-compressor.com\/vi\/san-pham\/dw-70-30-nitrogen-compressor-70-m%c2%b3-min-oil-free-n2-booster-for-3-00-mpa-ultra-high-pressure-industrial-process\/","title":{"rendered":"DW-70\/30 Nitrogen Compressor | 70 m\u00b3\/min Oil-Free N2 Booster for 3.00 MPa Ultra-High-Pressure Industrial Process"},"content":{"rendered":"
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<\/p>\n

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DW-70\/30 Nitrogen Compressor \u2013 Ultra-High-Capacity Oil-Free N2 Booster for 3.00 MPa Industrial Process<\/p>\n

Engineered to deliver 70 m\u00b3\/min at 3.00 MPa discharge pressure, the DW-70\/30 is a two-stage, four-row oil-free piston nitrogen compressor purpose-built for large-scale nitrogen injection, high-pressure pipeline boosting, and demanding petrochemical process applications. Zero oil contamination, continuous-duty rated, and optimized for 24\/7 industrial operation at elevated pressure.<\/p>\n

Y\u00eau c\u1ea7u b\u00e1o gi\u00e1<\/a>
\nXem d\u00f2ng m\u00e1y n\u00e9n N2<\/a><\/div>\n

\"DW-70\/30<\/p>\n<\/div>\n

<\/p>\n

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T\u1ed5ng quan s\u1ea3n ph\u1ea9m<\/h2>\n

C\u00e1i DW-70\/30 nitrogen compressor<\/strong> represents the pinnacle of our oil-free piston compressor engineering, occupying the ultra-high-capacity segment of our industrial nitrogen compressor portfolio. With an extraordinary 70 m\u00b3\/min capacity<\/strong> coupled with a formidable \u00c1p su\u1ea5t x\u1ea3 3,00 MPa<\/strong>, this unit is engineered for the most demanding large-scale nitrogen boosting applications where both massive flow and elevated pressure are non-negotiable requirements.<\/p>\n

What distinguishes the DW-70\/30 from all conventional alternatives is its \u0111\u01b0\u1eddng d\u1eabn n\u00e9n ho\u00e0n to\u00e0n kh\u00f4ng d\u1ea7u<\/strong> utilizing self-lubricating PTFE composite piston rings and rider bands. At 3.00 MPa discharge pressure, the risk of oil vapor carryover is exponentially magnified compared to low-pressure applications, making the oil-free design not merely advantageous but absolutely imperative. The compressor achieves native ISO 8573-1 Class 0 certification<\/strong> without any downstream oil-filtration equipment, eliminating the capital cost, maintenance burden, and energy penalty that would otherwise be mandatory at this pressure level.<\/p>\n

Ki\u1ebfn tr\u00fac m\u00e1y n\u00e9n s\u1eed d\u1ee5ng m\u1ed9t hai giai \u0111o\u1ea1n, b\u1ed1n h\u00e0ng<\/strong> configuration that is essential for managing the extreme combination of high flow rate and elevated pressure. The four-row design provides exceptional force balance while doubling the effective displacement compared to two-row designs, enabling the massive 70 m\u00b3\/min capacity. Each stage features independent intercooling, ensuring gas temperatures remain within safe operating envelopes even during sustained maximum-capacity operation at 3.00 MPa. The reinforced cast-iron frame and dynamically balanced forged steel crankshaft are rated for a minimum service life of 120.000 gi\u1edd<\/strong> theo c\u00e1c quy tr\u00ecnh b\u1ea3o tr\u00ec ti\u00eau chu\u1ea9n.<\/p>\n

\"DW-70\/30<\/p>\n<\/div>\n

<\/p>\n

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Technical Specifications \u2013 DW-70\/30<\/h2>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Tham s\u1ed1<\/th>\nGi\u00e1 tr\u1ecb<\/th>\n\u0110\u01a1n v\u1ecb<\/th>\n<\/tr>\n<\/thead>\n
Ng\u01b0\u1eddi m\u1eabu<\/td>\nDW-70\/30<\/td>\n\u2013<\/td>\n<\/tr>\n
M\u1eabu<\/td>\nHai giai \u0111o\u1ea1n b\u1ed1n h\u00e0ng (\u4e8c\u5217\u56db\u7ea7)<\/td>\n\u2013<\/td>\n<\/tr>\n
Dung t\u00edch<\/td>\n70<\/td>\nm\u00b3\/ph\u00fat<\/td>\n<\/tr>\n
\u00c1p su\u1ea5t x\u1ea3<\/td>\n3.00<\/td>\nMPa<\/td>\n<\/tr>\n
K\u00edch th\u01b0\u1edbc m\u00e1y n\u00e9n (D\u00e0i \u00d7 R\u1ed9ng \u00d7 Cao)<\/td>\n8500 \u00d7 2440 \u00d7 3020<\/td>\nmm<\/td>\n<\/tr>\n
C\u00e2n n\u1eb7ng<\/td>\n18.00<\/td>\nt<\/td>\n<\/tr>\n
Quy\u1ec1n l\u1ef1c<\/td>\n850<\/td>\nkW<\/td>\n<\/tr>\n
\u0110i\u1ec7n \u00e1p<\/td>\n6 ngh\u00ecn ho\u1eb7c 10 ngh\u00ecn<\/td>\nV<\/td>\n<\/tr>\n
M\u00f4i tr\u01b0\u1eddng kh\u00ed<\/td>\nNit\u01a1 (N\u2082)<\/td>\n\u2013<\/td>\n<\/tr>\n
B\u00f4i tr\u01a1n<\/td>\nKh\u00f4ng d\u1ea7u<\/td>\n\u2013<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

* T\u1ea5t c\u1ea3 c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 theo \u0111i\u1ec1u ki\u1ec7n tham chi\u1ebfu ti\u00eau chu\u1ea9n (ISO 1217, Ph\u1ee5 l\u1ee5c C). Hi\u1ec7u su\u1ea5t th\u1ef1c t\u1ebf c\u00f3 th\u1ec3 thay \u0111\u1ed5i t\u00f9y thu\u1ed9c v\u00e0o \u0111\u1ed9 cao c\u1ee7a \u0111\u1ecba \u0111i\u1ec3m, nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng v\u00e0 \u0111i\u1ec1u ki\u1ec7n \u0111\u1ea7u v\u00e0o.<\/em><\/p>\n<\/div>\n

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C\u00e1c t\u00ednh n\u0103ng ch\u00ednh v\u00e0 \u01b0u \u0111i\u1ec3m k\u1ef9 thu\u1eadt<\/h2>\n

1. Four-Row Architecture for Massive Capacity<\/h3>\n

The DW-70\/30 employs a hai giai \u0111o\u1ea1n, b\u1ed1n h\u00e0ng<\/strong> configuration that is unique in the oil-free nitrogen compressor market. The four-row design doubles the effective piston displacement compared to conventional two-row designs while maintaining excellent force balance through the opposed-cylinder arrangement. Each row contains two compression stages (one low-pressure and one high-pressure), resulting in four active compression cylinders driven from a single crankshaft. This architecture enables the extraordinary 70 m\u00b3\/min capacity<\/strong> that would otherwise require two separate compressors operating in parallel, reducing footprint, simplifying control, and eliminating the complexity of parallel compressor synchronization.<\/p>\n

2. High-Pressure Oil-Free PTFE Sealing System<\/h3>\n

At 3.00 MPa discharge pressure, the risk of oil contamination is exponentially higher than at conventional pressures. The DW-70\/30 utilizes a proprietary c\u1ee5m v\u00f2ng piston t\u1ef1 b\u00f4i tr\u01a1n v\u00e0 v\u00f2ng \u0111ai d\u1eabn h\u01b0\u1edbng<\/strong> manufactured from ultra-high-performance PTFE composites reinforced with glass fiber, carbon fiber, and bronze particulates. This advanced formulation achieves a coefficient of friction below 0.05 without any external hydrocarbon lubrication, ensuring the nitrogen stream remains completely free of oil contamination even at extreme pressure. The rings are rated for continuous operation at temperatures up to 190\u00b0C, providing a safety margin above the typical 165\u00b0C discharge temperature at 3.00 MPa. For industrial gas operators, this delivers Tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n ISO 8573-1 Lo\u1ea1i 0 g\u1ed1c.<\/strong> without the capital cost, maintenance burden, or energy penalty of downstream oil-filtration systems that would be mandatory with lubricated alternatives.<\/p>\n

3. Reinforced Frame for Extreme Mechanical Loads<\/h3>\n

Khung ch\u00ednh \u0111\u01b0\u1ee3c \u0111\u00fac t\u1eeb... Gang \u0111\u00fac GG30 m\u00e0u x\u00e1m<\/strong> (equivalent to ASTM A48 Class 35B) with substantially reinforced wall sections, additional ribbing, and integral cooling water passages machined directly into the casting. The high-pressure cylinders feature thickened walls and stress-relieving fillet radii to withstand the peak gas forces at 3.00 MPa. The four-row opposed-cylinder arrangement<\/strong> provides exceptional first-order and second-order force cancellation, reducing unbalanced inertia forces transmitted to the foundation by over 90% compared to single-row designs. This mechanical advantage permits installation on a reinforced concrete inertia block of minimum 25 tonnes<\/strong>\u2014substantial but significantly lighter than the 40+ tonnes that would be required for an equivalent single-row design.<\/p>\n

4. Medium-Voltage Drive for Maximum Efficiency<\/h3>\n

The DW-70\/30 is driven by a 850 kW medium-voltage induction motor<\/strong> available in either 6kV or 10kV configurations, conforming to IEC 60034-1 efficiency class IE3. At this power level, medium-voltage drive is not merely preferred but essential\u2014a 380V motor would require approximately 1,400A full-load current, necessitating impractically large cables and switchgear. The medium-voltage configuration reduces cable sizes by 80%, minimizes I\u00b2R losses, and integrates seamlessly into industrial medium-voltage distribution networks. Optional variable frequency drive (VFD) compatibility allows part-load operation with maintained efficiency, reducing energy consumption during periods of reduced nitrogen demand.<\/p>\n

\"DW-70\/30<\/p>\n<\/div>\n

<\/p>\n

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C\u00e1c k\u1ecbch b\u1ea3n \u1ee9ng d\u1ee5ng<\/h2>\n

Large-Scale Nitrogen Injection for Enhanced Oil Recovery<\/h3>\n

In oil and gas production, the DW-70\/30 serves as the primary nitrogen injection compressor<\/strong> for enhanced oil recovery (EOR) and pressure maintenance operations. Its 70 m\u00b3\/min capacity can supply multiple injection wells simultaneously, while the 3.00 MPa discharge pressure provides sufficient bottom-hole pressure for reservoirs at depths up to 2,500 meters. The oil-free design is absolutely critical in EOR applications because any oil contamination would damage the reservoir formation, reduce permeability, and compromise oil recovery efficiency. The continuous-duty rating ensures uninterrupted injection operations that may run for months or years without shutdown.<\/p>\n

\"DW-70\/30<\/p>\n

High-Pressure Pipeline Nitrogen Boosting<\/h3>\n

V\u00ec industrial nitrogen pipeline networks<\/a> operating at elevated pressures, the DW-70\/30 provides the booster capacity needed to maintain pressure over long distances and serve high-pressure consumers. The 3.00 MPa discharge pressure overcomes pipeline friction losses across distances up to 10 km, making it suitable for centralized nitrogen supply to large industrial parks or offshore platforms. The 70 m\u00b3\/min capacity can serve multiple high-pressure consumers simultaneously, including petrochemical reactors, gas turbine purge systems, and high-pressure blanketing operations.<\/p>\n

Petrochemical Reactor Inerting & Catalyst Systems<\/h3>\n

In large petrochemical complexes, the DW-70\/30 provides high-pressure nitrogen for reactor catalyst preservation, emergency nitrogen injection, and high-pressure vessel inerting<\/strong>. The 3.00 MPa discharge pressure is sufficient to inject nitrogen directly into high-pressure process vessels operating at up to 2.5 MPa, maintaining positive inert gas blankets during startup, shutdown, and upset conditions. The massive 70 m\u00b3\/min capacity can serve multiple reactors and vessels simultaneously through a centralized high-pressure nitrogen header. The oil-free certification is mandatory for petrochemical applications where nitrogen contacts catalyst beds or enters process streams that must remain completely hydrocarbon-free.<\/p>\n

\"DW-70\/30<\/p>\n

Coal Chemical & Syngas Plant Nitrogen Supply<\/h3>\n

Coal chemical plants and syngas production facilities require enormous volumes of high-pressure nitrogen for gasifier inerting, synthesis loop purging, and cryogenic air separation backup<\/strong>. The DW-70\/30’s 70 m\u00b3\/min capacity can support the nitrogen demands of multiple gasifiers or a complete syngas train, while the 3.00 MPa discharge pressure matches the pressure requirements of modern entrained-flow gasifiers. The oil-free design prevents oil contamination of syngas, which would poison downstream catalysts in methanol synthesis, Fischer-Tropsch synthesis, and ammonia production units.<\/p>\n<\/div>\n

<\/p>\n

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V\u1eadt li\u1ec7u & X\u00e2y d\u1ef1ng<\/h2>\n

The DW-70\/30 is constructed from premium materials selected for extreme-pressure nitrogen compatibility, thermal resistance, and structural integrity under massive mechanical loads:<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Th\u00e0nh ph\u1ea7n<\/th>\nV\u1eadt li\u1ec7u<\/th>\nTh\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt<\/th>\n<\/tr>\n<\/thead>\n
Main Frame<\/td>\nGang x\u00e1m<\/td>\nGG30 \/ HT300, reinforced walls + ribbing<\/td>\n<\/tr>\n
Kh\u1ed1i xi lanh (LP)<\/td>\nGang x\u00e1m<\/td>\nGG30 \/ HT300, integral cooling water jackets<\/td>\n<\/tr>\n
Kh\u1ed1i xi lanh (HP)<\/td>\nGang x\u00e1m<\/td>\nGG30 \/ HT300, extra-thick walls + stress relief<\/td>\n<\/tr>\n
Tr\u1ee5c khu\u1ef7u<\/td>\nTh\u00e9p h\u1ee3p kim r\u00e8n<\/td>\n34CrNiMo6, Q&T, ISO 1940 G1.0 balanced<\/td>\n<\/tr>\n
V\u00f2ng piston<\/td>\nPTFE-Glass-Carbon-Bronze Composite<\/td>\nUltra-high-pressure rated, 190\u00b0C max<\/td>\n<\/tr>\n
C\u00e1c ban nh\u1ea1c Rider<\/td>\nH\u1ee3p ch\u1ea5t PTFE<\/td>\nH\u1ec7 th\u1ed1ng d\u1eabn h\u01b0\u1edbng piston, ch\u1ed1ng tr\u1ea7y x\u01b0\u1edbc, t\u1ef7 l\u1ec7 m\u00e0i m\u00f2n <0,03 mm\/1000 gi\u1edd.<\/td>\n<\/tr>\n
T\u1ea5m van<\/td>\nTh\u00e9p kh\u00f4ng g\u1ec9<\/td>\nSS316, high-pressure concentric ring design<\/td>\n<\/tr>\n
Thanh truy\u1ec1n<\/td>\nTh\u00e9p r\u00e8n v\u1edbi \u1ed5 tr\u1ee5c Babbitt<\/td>\n\u0110\u1ea7u l\u1edbn \u0111\u01b0\u1ee3c gia c\u00f4ng ch\u00ednh x\u00e1c, b\u00f4i tr\u01a1n b\u1eb1ng d\u1ea7u<\/td>\n<\/tr>\n
B\u1ed9 l\u00e0m m\u00e1t kh\u00ed n\u1ea1p<\/td>\nV\u1ecf th\u00e9p carbon \/ \u1ed0ng th\u00e9p kh\u00f4ng g\u1ec9 SS316<\/td>\nTh\u1eed nghi\u1ec7m th\u1ee7y l\u1ef1c ASME VIII Div.1, 1,5\u00d7, gi\u1eef trong 30 ph\u00fat.<\/td>\n<\/tr>\n
B\u1ed9 l\u00e0m m\u00e1t sau<\/td>\nV\u1ecf th\u00e9p carbon \/ \u1ed0ng th\u00e9p kh\u00f4ng g\u1ec9 SS316<\/td>\n\u1ed0ng t\u1ea3n nhi\u1ec7t \u00e1p su\u1ea5t cao, n\u01b0\u1edbc l\u00e0m m\u00e1t 32\u00b0C<\/td>\n<\/tr>\n
\u0110\u01b0\u1eddng \u1ed1ng \u00e1p su\u1ea5t cao<\/td>\nTh\u00e9p kh\u00f4ng g\u1ec9 li\u1ec1n m\u1ea1ch<\/td>\nM\u1eb7t b\u00edch SS316, ANSI Class 900<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

T\u1ea5t c\u1ea3 c\u00e1c b\u1ed9 ph\u1eadn ch\u1ecbu \u00e1p l\u1ef1c \u0111\u1ec1u \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf v\u00e0 ch\u1ebf t\u1ea1o theo \u0111\u00fang ti\u00eau chu\u1ea9n. ASME BPVC Ph\u1ea7n VIII Ph\u00e2n khu 1<\/strong> ho\u1eb7c ti\u00eau chu\u1ea9n GB 150 c\u1ee7a Trung Qu\u1ed1c. M\u1ed7i m\u1ed1i h\u00e0n \u0111\u1ec1u tr\u1ea3i qua ki\u1ec3m tra ch\u1ee5p X-quang 100% (RT) theo M\u1ee5c V, \u0110i\u1ec1u 2 c\u1ee7a ASME, v\u00e0 m\u1ed7i b\u00ecnh \u00e1p l\u1ef1c ho\u00e0n ch\u1ec9nh \u0111\u1ec1u \u0111\u01b0\u1ee3c th\u1eed nghi\u1ec7m \u00e1p su\u1ea5t th\u1ee7y t\u0129nh \u1edf m\u1ee9c 1,5 l\u1ea7n \u00e1p su\u1ea5t l\u00e0m vi\u1ec7c t\u1ed1i \u0111a cho ph\u00e9p (MAWP) trong th\u1eddi gian gi\u1eef t\u1ed1i thi\u1ec3u 30 ph\u00fat. H\u1ec7 th\u1ed1ng \u0111\u01b0\u1eddng \u1ed1ng \u00e1p su\u1ea5t cao \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o t\u1eeb th\u00e9p kh\u00f4ng g\u1ec9 SS316 li\u1ec1n m\u1ea1ch v\u1edbi c\u00e1c m\u1ed1i n\u1ed1i m\u1eb7t b\u00edch ANSI Class 900 \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 k\u00edn kh\u00ed \u1edf \u00e1p su\u1ea5t ho\u1ea1t \u0111\u1ed9ng 3,00 MPa.<\/p>\n

\"DW-70\/30<\/p>\n<\/div>\n

<\/p>\n

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H\u01b0\u1edbng d\u1eabn l\u1eafp \u0111\u1eb7t v\u00e0 b\u1ea3o tr\u00ec<\/h2>\n

Y\u00eau c\u1ea7u v\u1ec1 n\u1ec1n m\u00f3ng v\u00e0 k\u1ebft c\u1ea5u<\/h3>\n

The DW-70\/30 has a dry weight of 18.00 tonnes and a center of gravity approximately 1,000 mm above the baseplate. Despite the massive size, the four-row opposed-cylinder design provides exceptional force balance, permitting installation on a reinforced concrete inertia block of 25\u201330 tonnes<\/strong>. The block must be mounted on heavy-duty elastomeric vibration isolators (natural frequency 5\u20137 Hz) to prevent vibration transmission to adjacent structures and sensitive instrumentation. Foundation design must account for dynamic forces during startup and shutdown, with a safety factor of 2.0 on the static load. Minimum clearance requirements: 2.0 m on all sides for maintenance access, 2.5 m overhead for crane access during major overhauls, and 3.0 m in front of the control panel for operator access.<\/p>\n

Thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng n\u01b0\u1edbc l\u00e0m m\u00e1t<\/h3>\n

Nhu c\u1ea7u n\u01b0\u1edbc l\u00e0m m\u00e1t x\u1ea5p x\u1ec9 80 m\u00b3\/h<\/strong> at an inlet temperature not exceeding 32\u00b0C. The water distribution circuit supplies the cylinder jackets, intercooler, and aftercooler in parallel branches with individual flow control valves. Given the extreme pressure ratio and massive capacity, the intercoolers are particularly 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 < 30 mg\/L (to prevent SS316 tube corrosion at high temperature), suspended solids < 20 mg\/L, and total hardness < 250 mg\/L as CaCO\u2083. A dedicated closed-loop cooling tower with full-stream filtration and automated chemical treatment is strongly recommended for this unit.<\/p>\n

L\u1ecbch tr\u00ecnh b\u1ea3o tr\u00ec ph\u00f2ng ng\u1eeba<\/h3>\n
\n\n\n\n\n\n\n\n\n\n
Kho\u1ea3ng th\u1eddi gian<\/th>\nM\u1ee5c d\u1ecbch v\u1ee5<\/th>\nC\u1ea7n h\u00e0nh \u0111\u1ed9ng<\/th>\n<\/tr>\n<\/thead>\n
H\u1eb1ng ng\u00e0y<\/td>\nKi\u1ec3m tra v\u1eadn h\u00e0nh<\/td>\nCheck vibration, abnormal noise, cooling water flow, discharge pressure, temperature, oil levels<\/td>\n<\/tr>\n
250 gi\u1edd<\/td>\nKi\u1ec3m tra t\u1ea5m van<\/td>\nRemove and inspect all suction\/discharge valves for carbon deposits, spring fatigue, cracking<\/td>\n<\/tr>\n
1.000 gi\u1edd<\/td>\n\u0110\u00e1nh gi\u00e1 \u0111\u1ed9 m\u00e0i m\u00f2n v\u00f2ng piston<\/td>\nMeasure ring groove clearance on all cylinders; replace rings if clearance exceeds 0.20 mm<\/td>\n<\/tr>\n
3.000 gi\u1edd<\/td>\n\u0110\u1ea1i tu trung c\u1ea5p<\/td>\nReplace all piston rings, rider bands, and valve plate assemblies across all four rows<\/td>\n<\/tr>\n
6.000 gi\u1edd<\/td>\n\u0110\u1ea1i tu l\u1edbn<\/td>\nInspect crankshaft journals, measure all main bearing clearances, replace bearings if >0.06 mm<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

The oil-free design of the DW-70\/30 dramatically simplifies maintenance compared to lubricated alternatives of this scale. There are no oil changes (which would require 500+ liters per change), no oil analysis, no filter replacements, and no separator cartridge changes. The primary consumable wear items are the v\u00f2ng piston PTFE v\u00e0 v\u00f2ng d\u1eabn h\u01b0\u1edbng<\/strong>, which typically achieve 3,000\u20135,000 hours of service life under clean nitrogen conditions at high pressure. The four-row design allows for staggered maintenance scheduling, where individual rows can be serviced while the remaining rows continue operation, maximizing equipment availability.<\/p>\n

\"DW-70\/30<\/p>\n<\/div>\n

<\/p>\n

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Ch\u1ee9ng nh\u1eadn tu\u00e2n th\u1ee7 v\u00e0 an to\u00e0n<\/h2>\n

The DW-70\/30 nitrogen compressor is designed, manufactured, and tested to meet or exceed the following international standards and regulatory frameworks:<\/p>\n

\n
Ch\u1ec9 th\u1ecb v\u1ec1 thi\u1ebft b\u1ecb ch\u1ecbu \u00e1p l\u1ef1c<\/strong>
\nASME BPVC Ph\u1ea7n VIII Div.1, GB 150-2011, PED 2014\/68\/EU M\u00f4-\u0111un A<\/span><\/div>\n
An to\u00e0n \u0111i\u1ec7n v\u00e0 m\u00e1y m\u00f3c<\/strong>
\nIEC 60034-1 (hi\u1ec7u su\u1ea5t IE3), IEC 60204-1, an to\u00e0n m\u00e1y m\u00f3c ISO 12100<\/span><\/div>\n
Ch\u1ea5t l\u01b0\u1ee3ng kh\u00f4ng kh\u00ed kh\u00f4ng d\u1ea7u<\/strong>
\n\u0110\u1ea1t ti\u00eau chu\u1ea9n ISO 8573-1 Lo\u1ea1i 0 (H\u00e0m l\u01b0\u1ee3ng d\u1ea7u), \u0111\u01b0\u1ee3c ki\u1ec3m nghi\u1ec7m \u0111\u1ed9c l\u1eadp b\u1edfi T\u00dcV Rheinland.<\/span><\/div>\n
Ch\u1ea5t l\u01b0\u1ee3ng & M\u00f4i tr\u01b0\u1eddng<\/strong>
\nISO 9001:2015, ISO 14001:2015<\/span><\/div>\n<\/div>\n
\u26a0\ufe0f C\u1ea3nh b\u00e1o an to\u00e0n nghi\u00eam tr\u1ecdng \u2013 V\u1eadn h\u00e0nh \u1edf \u00e1p su\u1ea5t c\u1ef1c cao<\/strong><\/p>\n

Nitrogen is classified as a simple asphyxiant gas. At 3.00 MPa discharge pressure, the stored energy in the compressed gas and the risk of rapid release are extreme. All DW-70\/30 installations must incorporate multiple layers of safety protection: (1) Continuous oxygen deficiency monitoring in the compressor room and all adjacent areas; (2) High-pressure discharge piping equipped with pressure relief valves rated at 110% of MAWP and rupture discs as secondary protection; (3) Automatic isolation valves on suction and discharge that close on emergency shutdown; (4) Ventilation systems designed to maintain ambient oxygen above 19.5% per OSHA 29 CFR 1910.146; (5) Emergency shutdown interlocks at 19.5% O\u2082 (alarm) and 18.0% O\u2082 (hard shutdown); (6) Personnel trained in ultra-high-pressure gas safety protocols before operating or maintaining this equipment. All high-pressure piping must be inspected annually for fatigue cracks and corrosion.<\/p>\n<\/div>\n

\"DW-70\/30<\/p>\n<\/div>\n

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Ph\u00e2n t\u00edch hi\u1ec7u su\u1ea5t v\u00e0 hi\u1ec7u qu\u1ea3<\/h2>\n

The DW-70\/30 achieves a specific power consumption of approximately 12.14 kW per m\u00b3\/min<\/strong> of nitrogen delivered at 3.00 MPa discharge pressure. This efficiency metric is exceptional for an oil-free piston compressor operating at extreme pressure and massive capacity, positioning the unit in the top tier of the ultra-high-pressure compressor segment. For comparison, oil-lubricated reciprocating compressors in similar applications typically consume 13.0\u201315.0 kW\/m\u00b3\/min, while diaphragm compressors (often selected for oil-free high-pressure service) would require multiple units in parallel and consume 18+ kW\/m\u00b3\/min with significantly higher capital cost.<\/p>\n

Over a standard 8,000-hour annual operating schedule, the DW-70\/30’s efficiency advantage generates approximately 560,000\u20131,120,000 kWh of annual energy savings<\/strong> compared to less efficient alternatives. At an average industrial electricity tariff of $0.08\/kWh, this represents $44,800\u2013$89,600 in direct operating cost reduction per year. When combined with the complete elimination of oil-related consumables (which would be massive at this scale\u20141,000+ liters of oil annually, plus filters, separators, and disposal costs), the T\u1ed5ng chi ph\u00ed s\u1edf h\u1eefu cho h\u1ec7 th\u1ed1ng n\u00e9n nit\u01a1 si\u00eau cao \u00e1p<\/a> is reduced by an estimated 25\u201335% over a 10-year operational life.<\/p>\n

The absence of oil in the compression path is particularly valuable at 3.00 MPa because oil contamination becomes exponentially more concentrated and more difficult to remove as pressure increases. At this pressure level, downstream oil-filtration systems would require multiple stages of coalescing filters, activated carbon adsorbers, and continuous oil monitoring instrumentation, consuming 5\u20138% of the compressor’s power output and requiring frequent maintenance. The DW-70\/30’s native oil-free design removes this parasitic load and maintenance burden entirely.<\/p>\n<\/div>\n

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Kh\u1ea3 n\u0103ng t\u00f9y ch\u1ec9nh v\u00e0 s\u1ea3n xu\u1ea5t theo \u0111\u01a1n \u0111\u1eb7t h\u00e0ng (OEM)<\/h2>\n

We offer comprehensive customization options to adapt the DW-70\/30 to specific site conditions, integration requirements, and end-user specifications:<\/p>\n