250 Bar CNG Natural Gas High Pressure Piston Reciprocating Booster Compressor for Sale

• Customization: Available
• After-sales Service: 18 Months
• Warranty: 12 Months
• Model NO.: customized
• Lubrication Style: Lubricated
• Cooling System: Water Cooling
• Cylinder Arrangement: Balanced Opposed Arrangement
• Cylinder Position: Angular
• Structure Type: Closed Type
• Compress Level: Double-Stage
• Refrigerant Type: Ammonia
• Transport Package: Fumigation Wooden Box, by Sea
• Specification: 3400*2200*1300mm
• Trademark: HUAYAN
• Origin: China
• HS Code: 8414804090
• Production Capacity: 500 Sets / Year

Product Description

Company Profile

About Us

is a premier global provider of gas compression solutions. With accumulated expertise in design and manufacturing spanning decades, our company possesses comprehensive production capabilities encompassing professional forging, casting, heat treatment, welding, precision machining, assembly testing, and quality verification processes. Supported by a dedicated technical team of 23 professionals and a sprawling 90,000 m² manufacturing facility, we maintain advanced technical testing equipment and rigorous quality control methods to ensure superior product performance.

Capable of custom-designing, manufacturing, and installing equipment according to specific customer parameters, we currently achieve an annual production capacity of 500 gas compressor units. Our technical excellence enables the development of compressors with discharge pressures up to 50MPa, meeting the most demanding industrial requirements.

With a global footprint extending to over 50 countries across five continents, including key markets such as Indonesia, Egypt, Vietnam, South Korea, Thailand, Finland, Australia, Czech Republic, Ukraine, and Russia, we deliver complete turnkey solutions for clients worldwide. Our commitment to operational excellence ensures every customer receives high-performance equipment paired with professional technical support and responsive service.

Product Description

Product Description

This series of is one of the first products produced by our factory in China. The product has the characteristics of low speed, high component strength, stable operation, long service life and convenient maintenance. This series compressor is in the form of unit. It integrates compressor, gas-liquid separator, filter, two position four-way valve, safety valve, check valve, explosion-proof motor and chassis. The utility model has the advantages of small volume, light weight, low noise, good sealing performance, easy installation, simple operation, etc.

Working Principle of Piston Compressor
When the crankshaft of the piston compressor rotates, the piston will reciprocate through the transmission of the connecting rod, and the working volume formed by the inner wall of the cylinder, the cylinder head and the top surface of the piston will periodically change. When the piston of a piston compressor starts to move from the cylinder head, the working volume in the cylinder gradually increases. At this time, the gas flows along the intake pipe and pushes the intake valve to enter the cylinder until the working volume reaches the maximum. , The intake valve is closed; when the piston of the piston compressor moves in the reverse direction, the working volume in the cylinder is reduced, and the gas pressure is increased. When the pressure in the cylinder reaches and is slightly higher than the exhaust pressure, the exhaust valve opens and the gas is discharged from the cylinder , Until the piston moves to the limit position, the exhaust valve is closed. When the piston of the piston compressor moves in the reverse direction again, the above process repeats. In short, the crankshaft of a piston compressor rotates once, the piston reciprocates once, and the process of air intake, compression, and exhaust is realized in the cylinder, which completes a work cycle.

Note: In the unloading process, the compressor pressurizes the gas from the storage tank and then presses it into the tank car through the gas-phase pipeline, and presses the liquid from the tank car to the storage tank through the gas-phase differential pressure to complete the unloading process. When the gas phase is pressurized, the temperature of the gas phase will rise. At this time, forced cooling is not necessary, because if the gas phase is compressed and then cooled, it is easy to liquefy, and it is difficult to establish the pressure difference of the gas phase, which is not conducive to the replacement of the gas phase and the liquid phase. In short, it will cause the prolongation of the unloading process. If it is necessary to recover the residual gas, the cooler can be selected to forcibly cool the gas phase during the recovery operation, so as to recover the residual gas as soon as possible.The loading process is opposite to the unloading process.

Chemical Process Compressor Description 
refer to process reciprocating piston compressors used to compress various single or mixed media gases in petroleum and chemical processes, as well as chemical exhaust gas recycling systems. Its main function is to transport the medium gas in the reaction device and provide the required pressure to the reaction device. Features 1. Designed for specific process flow. 2. The whole machine is skid-mounted and advanced in structure. 3. The compressor types are: 4. The middle body of the slideway and the cylinder can be designed in different structural forms according to the process requirements.
 

Main components
1.  Motion system: crankshaft, piston connecting rod assembly, coupling, etc.
2.  Air distribution system: valve plate, valve spring, etc.
3. Sealing system: piston ring, oil seal, gasket, packing, etc.
4. Body system: crankcase, cylinder block, cylinder liner, cover plate, etc.
5. Lubrication system: lubricating oil pump, oil filter, pressure regulating valve, etc.;
6. Safety and energy regulation systems: safety valves, energy regulation devices, etc.

Advantages of piston compressor
1. The applicable pressure range of the piston compressor is wide, and the required pressure can be reached regardless of the flow rate;
2. The piston compressor has high thermal efficiency and low unit power consumption;
3. Strong adaptability, that is, a wide exhaust range, and is not affected by the pressure level, and can adapt to a wider pressure range and cooling capacity requirements;
4. Piston compressors have low requirements for materials, and use common steel materials, which is easier to process and lower in cost;
5. The piston compressor is relatively mature in technology, and has accumulated rich experience in production and use;
6. The device system of the piston compressor is relatively simple.

Series Parameter Table

S/N	Model	motor power(kW)	inletpressure(Mpa)	outlet pressure(MPa)	Flow (Nm³/h)
1	ZW-0.6/2-25	30	0.2	2.5	90
2	ZW-1.5/1-12	22	0.1	1.2	180
3	ZW-1.4/2-40	37	0.2	4	250
4	ZW-1.3/4-25	37	0.4	2.5	340
5	VW-7.2/2.5-6	45	0.25	0.6	1200
6	VW-7.2/1-22	132	0.1	2.2	800
7	DW-1.2/2-150	45	0.2	15	400
8	DW-0.5/20-160	75	2	16	600
9	DW-3.8/10-45	185	1	4.5	2300
10	DW-11/4-20	250	0.4	2	3000
11	ZW-3/2-3	11	0.2	0.3	480
12	ZW-5.5/2-6	45	0.2	0.6	900
13	ZW-2/20	22	atm	2	110
14	VW-3/20	37	atm	2	165
15	VW-4/20	45	atm	2	220
16	VW-5/20	55	atm	2	285
17	VW-6/20	75	atm	2	330
18	VW-6.8/30	75	atm	3	370
19	DW-32/0.05-3	132	0.05	0.3	1800
20	DW-30/2-8	280	0.2	0.8	4900

 

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Our Advantages

  

 Authentication Certificate

We hold internationally recognized certifications including CE and ISO standards (accredited by IAF), as well as ECM compliance recognition. These certifications demonstrate our unwavering commitment to quality, safety, and environmental responsibility:

• CE Marking ensures compliance with EU safety, health, and environmental regulations, guaranteeing free market access across Europe.

• ISO Certification (backed by IAF accreditation) validates our adherence to globally benchmarked quality management systems, enhancing operational consistency and customer confidence.

• ECM Recognition underscores our alignment with industry-specific technical and performance standards.

Should your market or project require additional certifications (e.g., API, ASME, or region-specific approvals), our experienced technical and compliance team will collaborate with you to efficiently obtain the necessary certifications. We tailor our processes to meet your regulatory requirements, ensuring seamless market entry for our equipment.
 

Factory Strength

Our factory covers an area of 91260 square meters and has over 120 workers. The factory is equipped with 20 CNC high-precision machining equipment, with a maximum machining diameter of 1200mm and a minimum machining accuracy of 0.01mm. 

Partners and Clients

 

Cooperative Brand

Our Customers

Exhibition

Core Technology Team

Core Technology Team

Cooperation Process
 

After order

Packaging & Shipping

Package

We utilize fumigation-free solid wood frameworks certified by ISO international export quarantine standards. Internally reinforced with channel steel for three-dimensional support, the exterior is wrapped with 0.8mm thickened metal corner guards and secured at joints using waterproof galvanized steel straps. This design ensures impact resistance, compression-proof durability, moisture protection, and rust prevention throughout transit, guaranteeing your goods arrive safely.

Delivery capability

Our company will develop customized delivery schedules for your project, supported by integrated logistics solutions covering air, sea, and land transport.
Leveraging China's domestic network and global partnerships, we ensure efficient cross-border operations with real-time tracking, customs clearance support, and bonded warehousing capabilities. Multi-modal flexibility guarantees cost-effective and timely delivery for all cargo types.

 

 

FAQ

FAQ

1.How to get a prompt quotation of gas compressor ?
 1)Flow Rate/Capacity : ___ Nm3/h
 2)Suction/ Inlet Pressure : ____ Bar
 3)Discharge/Outlet Pressure :____ Bar
 4)Gas Medium :_____
 5)Voltage and Frequency : ____ V/PH/HZ
2.How long is delivery time ?
Delivery time is around the 30-90 days .
3.What about the voltage of products? Can they be customized?
Yes, the voltage can be customized according to your inquire.
4.Can you accept OEM orders?
Yes, OEM orders is highly welcome.
5.Will you provide some spare parts of the machines?
Yes, we will .