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Industrial Nitrogen Gas Reciprocating Compressor

Gas composition (mol%): Nitrogen

Nominal volumetric Flow rate: 3.8 m³/min

Inlet pressure: 0.4~0.6 MPa.G

Inlet temperature: Normal temperature

Exhaust pressure: 1.4 MPa.G

Main motor power: 75 kW

Overall dimensions of the machine: ~4800 × 3200 × 1800 mm

Whole machine weight: ~5T

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Product Description

DW-3.8/(4~6)-14 Nitrogen Gas Reciprocating Compressor Details Product Details

Core Technical Advantages

Oil-Free D-Type Balanced Structure

Double mid-body isolation design ensures high-purity nitrogen output with low vibration and extended service life for continuous operation

Stable Cooling & Redundant Lubrication System

Dual oil pump backup and full water-cooling design ensure stable temperature control and reliable long-term operation.

ExdIICT4 Explosion-Proof Skid-Mounted Solution

Pre-assembled skid package with integrated safety instruments supports DCS monitoring for easy installation and fast commissioning.

Core Benefits

Reduced Maintenance Cost & Downtime

Long-life consumables and maintainable design reduce service expenses and help prevent unplanned production shutdowns.

Simplified Nitrogen System Operation

Oil-free high-purity nitrogen output reduces the need for additional purification equipment, simplifying system layout and lowering auxiliary investment.

Faster Project Delivery & Commissioning

Factory pre-assembled skid package minimizes on-site piping work, accelerates commissioning and enables earlier production startup.

Industry Applications

Petrochemical Industry

Built for nitrogen pressurization in petrochemical plants. Explosion-proof configuration ensures safe and stable operation in hazardous chemical zones while meeting industrial safety requirements.

️Air Separation & Gas Treatment

Ideal for boosting low-pressure nitrogen (0.4~0.6MPa) up to 1.4MPa, supporting gas storage, processing and purification systems with reliable nitrogen supply.

Global Project Cases

We maintain long-term partnerships with international clients, providing tailored reciprocating compressor solutions for hydrogen, nitrogen, natural gas and other process gas applications.

Manufacturing Capability

Manufacturing Base

Professional facilities support efficient compressor manufacturing.

Complete Assembly

Integrated assembly capability ensures reliable product delivery.

Testing & Quality Control

Strict inspection guarantees stable performance before shipment.

QC & International Certifications

ISO 9001 / ISO 14001 / ISO 45001

Global Quality, Environmental & Occupational Health Management Systems

ISO International Management Systems

Independent Invention & Utility Model Patents

Continuous Innovation in Reciprocating Compressor Technology

Compressor Technology Patents

Nitrogen Compressor FAQ

What makes this nitrogen compressor suitable for continuous petrochemical operation?

The D-type balanced structure, redundant lubrication system and water-cooled design support stable 24-hour operation in demanding industrial environments.

Can the compressor maintain high-purity nitrogen output?

Yes. The oil-free gas contact design prevents lubricant contamination and ensures clean nitrogen delivery for process applications.

Is the compressor suitable for hazardous areas?

Yes. The explosion-proof skid-mounted design supports safe installation in hazardous industrial environments.

About Bengbu United

Established in 2002, Bengbu United Compressor focuses on reciprocating compressor design and manufacturing for industrial gas applications. We provide customized solutions for nitrogen, hydrogen, natural gas and other process gas compression projects worldwide.

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