What certifications does the product have?

The product has CE certification, ensuring it meets European safety and quality standards.

Can this pump be used for underground coal mine applications?

No, the standard series of boosters are not suitable for underground coal mine applications.

What is the typical flow rate for the GB25 model?

For the GB25 model (25:1 ratio), the maximum flow rate is 114 L/min at an inlet pressure of 20 Bar.

Usun Ws-GB Pneumatic Nitrogen Gas Cylinder Charging/Filling Pump

Name: Usun Ws-GB Pneumatic Nitrogen Gas Cylinder Charging/Filling Pump
Brand: Dong Guan Usun Fluid Control Equipment Co., Ltd.
SKU: 877320015

Guangdong, ChinaDong Guan Usun Fluid Control Equipment Co., Ltd.

US$1,700.00-2,000.00

1 Piece

Product profile

Customization

Available

Max.Capacity

100-200 L/min

Pressure Medium

Gas

Model NO.

Model: WS-GB

Type

Handheld

Position of Pump Shaft

Horizontal

Certification

Material

Stainless Steel

Driving Air Pressure

Compressed Air of 3-8 Bar

Pump Type

Piston Pump

Driven Cylinder

160mm

Application

Can Be Used for Refilling Gas Cylinder

Air Driven Port

G1/2''

Product Name

Single Actin Gas Pressure Booster Station

Transport Package

Carton Box Packing

Specification

50x32x32

Trademark

USUN

Origin

China

HS Code

8412310090

Production Capacity

2000 PCS Per Year

Key features

Explosion-Proof Safety: No heat, flame, or spark risk, ideal for hazardous environments.

High Pressure Capability: Achieves up to 800 Bar outlet pressure with ratios up to 100:1.

CE Certified Quality: Manufactured with CE certification ensuring safety and compliance.

Stainless Steel Construction: Made from durable stainless steel for long working life and corrosion resistance.

Automatic Stall Control: Stops automatically at set pressure, restarting with slight pressure drop.

Low Maintenance Design: No airline lubrication required with seals designed for extended service intervals.

Flexible Air Drive: Powered by compressed air (3-8 Bar), no electrical connection needed.

Compact Handheld Type: Horizontal shaft design, compact and robust for easy application.

Company profile

Dong Guan Usun Fluid Control Equipment Co., Ltd.

Guangdong, China

CertifiedBusiness Type: Trading CompanyExport Year: 2013-10-05 CertifiedNearest Port: Shenzhen PortAverage Response Time: ≤4.66h CertifiedTerms of Payment: T/T, PayPal CertifiedInternational Commercial Terms(Incoterms): CIF, EXW

AI-Powered supplier vetting

SummaryDong Guan Usun Fluid Control Equipment Co., Ltd. is identified as a Chinese trading company with five employees, while other records describe an established factory and five production lines. Its offering focuses on gas booster pumps, air-driven gas boosters, hydro-test pumps, high-pressure systems, and related components. The supplier reports export activity since 2013 and exports representing 90% of total sales, with markets across multiple regions. Peak- and off-season lead times are both stated as within 15 workdays. No management-system certifications are reported, and the quality-control team has fewer than five staff. The company description claims development of a pneumatic booster pump intended to replace a German product and worldwide customer acceptance, but no specific customer cases are provided. Evidence is insufficient to confirm after-sales service or customization capability.

Supplier typeThe supplier is explicitly classified as a trading company, including both the associated-company industry record and the business-entity type. This indicates the entity is primarily trade-oriented, although other records mention manufacturing activities and a factory history.

CertificationsThe supplier reports no certification of management systems (“NIL”). Therefore, the provided evidence does not show possession of management-system certifications.

R&D capabilityThe company description states that it developed a new type of pneumatic booster pump intended to replace a German product, and its listed products include gas booster pumps, high-pressure pump systems, and related components. This supports evidence of product-development activity, although the extent and verification of innovation are not provided.

Production capacityThe records identify five production lines, an 87.0 m² plant, fewer than five quality-control staff, and peak- and off-season lead times within 15 workdays. The supplier also describes a factory established in 2011, but its simultaneous classification as a trading company and limited operating scale indicate production capacity is evidenced but modest.

Product Q&A

Q:What is the maximum outlet pressure this pump can achieve?

The maximum outlet pressure ranges from 16.6 Bar to 800 Bar depending on the model, with the highest ratio (100:1) reaching 800 Bar at 40 Bar inlet pressure.

Q:What is the driving air pressure requirement?

The pump requires compressed air with a pressure range of 3-8 Bar. For long life, we suggest the air driven pressure should not exceed 8 Bar.

Q:Is this pump suitable for continuous operation?

Yes, there is no limit or adverse effect on continuous stop/start applications. However, for continuous basis, we recommend a maximum cycle rate of 50-60 cycles per minute to prevent freezing.

Q:How does the pump stop at a specific pressure?

The pump stops automatically when the outlet pressure forces equal the air drive pressure (stall condition). It restarts with a slight drop in outlet pressure or an increase in air drive pressure.

Q:What materials are used for the seals?

The standard seals are made of PTFE, which is suitable for the vast majority of gases. Other materials can be supplied for more aggressive services.