Nitrogen
ZW-0.67/(3-4)-(8-10)
- Normal capacity
- 150 Nm³/h
- Inlet → discharge
- 0.3–0.4 → 0.8–1.0 MPa
- Motor / envelope
- 11 kW
1600 × 1100 × 1400 mm
Bengbu
Bengbu Jiangbei: CO₂ duties, special gases and high-pressure boosters
Compare paired inlet and delivery conditions, medium-specific requirements and named booster duties before agreeing the package.
BENGBU JIANGBEI AIR COMPRESSOR WORKS
Choose the compression duty before choosing the package
蚌埠市江北空气压缩机厂 states establishment in June 2009 and a restructuring relationship with the former Bengbu Compressor General Works. Predecessor industry experience is distinct from the present entity’s incorporation age.
The manufacturer describes independent design, trial production and manufacture of compressors and complete equipment, with reciprocating/screw mechanisms and fixed, mobile, vehicle-mounted and skid arrangements. The selections here cover CO₂, chemical/special gases and high-pressure boosters.
ORIGINAL CO₂ MODEL CHART · Nm³/h
Equal motor ratings can describe very different tasks
| Model | Capacity | Inlet → discharge | Motor / envelope |
|---|---|---|---|
| ZW-3/2-3 | 480 Nm³/h | 0.2 → 0.3 MPa | 11 kW 1400 × 900 × 1250 mm |
| ZW-5.5/2-6 | 900 Nm³/h | 0.2 → 0.6 MPa | 45 kW 2000 × 1600 × 1250 mm |
| VW-4/20 | 220 Nm³/h | Atmospheric → 2.0 MPa | 45 kW 2800 × 1800 × 1750 mm |
| DW-3.2/17-48 | 3150 Nm³/h | 1.7 → 4.8 MPa | 160 kW 4800 × 2200 × 1800 mm |
Compare with the inlet conditions attached
The two 45 kW rows have different suction pressure, capacity, discharge pressure and envelopes. Motor power alone does not establish an equivalent duty or an efficiency ranking.
Agree CO₂ composition/purity, inlet temperature and pressure envelope, base/peak normal flow, contaminants/liquid conditions and receiving pressure. Define the normal-volume reference and gauge/absolute convention.
The original chart includes rows outside the generic 10–1800 Nm³/h text repeated on the page. Use the actual model sheet and performance envelope for the quotation.
CO₂ duty and acceptance details →GAS IDENTITY · SEALS · LUBRICATION · CONTROLS
Three separate media, not one universal compressor curve
Propylene
ZW-0.95/8-12
- Normal capacity
- 420 Nm³/h
- Inlet → discharge
- 0.8 → 1.2 MPa
- Motor / envelope
- 15 kW
1500 × 1200 × 1400 mm
Methane
VW-0.21/(20-30)-250
- Normal capacity
- 270 Nm³/h
- Inlet → discharge
- 2.0–3.0 → 25 MPa
- Motor / envelope
- 45 kW
3200 × 2000 × 1600 mm
The gas-specific chart extends beyond the generic ≤15 MPa page text. Confirm the actual offered medium, pressure envelope and volume basis. Broad media lists and a suffix do not establish compatibility with a different mixture.
Define the actual gas path
The page describes reciprocating compression with PLC control and air/water/mixed cooling. It calls gas compression non-lubricated and lists oil/water pressure, temperature and inlet/discharge protections.
Agree gas-contact materials, seals, acceptable carryover/purity, conditioning/cooling and vent/recovery. Drive/bearing lubrication is a separate boundary; a non-lubricated cylinder description is not a food-grade certificate.
Obtain offered instruments, protection setpoints and control/plant interfaces. Specify composition variation, contaminants/entrained liquid, temperature and operating cycle in the engineered request.
Special-gas model and interface details →DIESEL TABLE · FLOW m³/min · PRESSURE MPa
Stage count and drive belong to the named field-duty row
| Model | Flow / pressure | Stages | Cooling / drive |
|---|---|---|---|
| VF-1.2/24-60 | 30 m³/min · 6 MPa | 1 | Air · 1150 rpm Diesel engine; numeric kW not stated |
| VF-1.2/24-150 | 30 m³/min · 15 MPa | 2 | Air · 1150 rpm Diesel engine; numeric kW not stated |
| VF-1.2/14-250 | 18 m³/min · 25 MPa | 3 | Air · 1150 rpm Diesel engine; numeric kW not stated |
Specify the incoming supply and the task
The chart uses m³/min, distinct from the family text’s Nm³/min. Obtain volume reference, suction pressure/temperature and the duty curve before sizing a booster.
Give air/gas identity, receiver and transient demand, pressure ramp/hold requirement, duty cycle, mobility and ambient/site utility conditions.
Agree engine/electrical and fuel/cooling demand, controls/protection, permitted start/stop duty, foundation/enclosure and service access. The highest family flow and highest pressure are not a simultaneous guarantee.
High-pressure booster selection details →OFFERED MACHINE · FACTORY TEST · DESTINATION SUPPORT
Connect the duty sheet to acceptance and ownership
- Process documents: gas composition and performance envelope, P&ID, seals/materials, lubrication, conditioning/cooling and vent/recovery boundaries.
- Site and safety interfaces: installation and electrical/control drawings, utilities, service/removal clearances, relief/protection interfaces and qualified project acceptance arrangements.
- Handover evidence: actual factory-test record, agreed performance/purity conditions, delivered manuals, wear parts and commissioning/training responsibilities.
Jiangbei describes product quality records and loaded/unloaded tests. Ask for the offered unit’s result and traceability. Management-system documents need current entity, site, validity and scope checks before they are relied on for the order.
Questions for a Jiangbei project
Why do the two 45 kW CO₂ examples have different flow?
The chart gives different suction and discharge conditions. Compare the actual compression duty and complete reference/test basis before interpreting motor power or capacity.
Can the high-pressure chart’s m³/min be relabelled as Nm³/min?
The chart and general text use different volume labels. Obtain the reference and actual inlet conditions; do not convert or relabel without them.
Does non-lubricated gas compression establish my required purity?
Define gas-path scope, seals/materials, contamination limits and sampling/acceptance. Drive/bearing lubrication and process purity are separate requirements.
Prepare the Jiangbei compression duty
Send CO₂, chemical-gas or field-booster task, composition, inlet envelope, delivery pressure, flow basis and acceptance requirements.
Prepare a Jiangbei enquirySpecification pages
Specification pages for Jiangbei product types
| Duty | Write on the RFQ |
|---|---|
| Compressor for PET bottle blowing | Bottle blowing is a high-pressure oil-free process. The blower OEM’s pressure and the cavity count size the compressor, not the word PET. |
| Process gas compressor manufacturers in China | Process gas is not plant air. Molecular weight, suction pressure, discharge pressure and flow size the machine. A kW from an air catalogue is unused. |
| 30 bar oil-free compressor | Specify whether 30 bar is gauge or absolute pressure, where it is required and how much air must be supplied at that point. A 30 bar working duty does not, by itself, identify a compressor architecture, motor size or air-quality class. |
| 40 bar PET compressor | PET blowing at 40 bar(g) is a high-pressure oil-free duty. Cavities, bottle volume and recovery pressure size the skid — not the word “PET compressor”. |
Product information
Information reviewed 2026-10-08. Specifications apply only to the models and conditions stated.
Jiangbei: Compare paired inlet and delivery conditions, medium-specific requirements and named booster duties before agreeing the package.
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