Gate Valve

Heavy-Duty Gate Valves: Precision Sealing & Low-Maintenance Longevity.

 

 

ZFV designs and manufactures industrial-grade Gate Valves that serve as the backbone of global fluid infrastructure. Designed for full-port flow with minimal pressure drop, our gate valves provide reliable, long-term shut-off in critical oil, gas, power, and industrial process systems.

 

 
 
Technical Specifications

 

Parameter

Specification

Size Range

2" – 60" (DN50 – DN1500)

Pressure Class

ASME Class 150 – 2500 / PN16 – PN420

Design Standards

API 600 (Cast Steel), API 603 (Stainless), API 602 (Forged), ASME B16.34

Body Materials

WCB, LCB, CF8M (SS316), C12A, Duplex 2205, Monel, Hastelloy

Face-to-Face

ASME B16.10 / EN 558

End Connections

Flanged (RF, RTJ), Butt-Weld (BW), Socket-Weld (SW)

 

 
 
Engineering Highlights
01.

Flexible Wedge Design

Prevents thermal binding during rapid temperature changes, improving reliability in high-temperature steam service.

02.

Stellite® #6 Hard-Faced Seats

Enhanced resistance to erosion and galling for longer sealing life and high cycle performance.

03.

Low Fugitive Emissions

Our valves are designed for Low Fugitive Emissions, compliant with API 624 / ISO 15848-1, meeting the strictest environmental audits in the EU and USA.

04.

Low Torque Operation

Precision-machined stems and thrust bearings reduce operating torque and extend actuator service life.

 

Gate Valve Selection Guide

 

Service Environment

Recommended Type

Seat Material

Benefit

Oil & Gas Pipeline

API 600 WCB

13% Cr / Stellite

Robust bi-directional shut-off

Chemical Refining

API 603 SS316

Integral / SS316

Maximum corrosion resistance

Power Plant Steam

Pressure Seal C12A

Stellite #6

High-temp/High-press stability

Mining Slurry

Knife Gate Valve

EPDM / Metal

Self-cleaning, avoids clogging

 

Application Scenarios

 

Application Industry

Typical Applications

Key Benefits

Power Plant Systems

Main steam lines, boiler feedwater systems

High-temperature resistance, reliable shut-off

Oil & Gas Processing

Crude oil pipelines, refinery units

Long service life, high-pressure stability

LNG & Cryogenic Systems

LNG terminals, cryogenic transfer pipelines

Low-temperature sealing performance

Offshore & Marine

Ballast systems, seawater cooling pipelines

Excellent seawater corrosion resistance

Chemical Processing

Acid pipelines, chemical transfer systems

Chemical resistance, stable sealing

Water Treatment

Municipal water supply, wastewater plants

Low pressure drop, long-term reliability

Mining & Slurry Handling

Tailings pipelines, slurry transport systems

Wear resistance, anti-clogging performance

Industrial Automation

Automated pipeline systems, utility isolation

Low torque operation, actuator compatibility

 

Quality Control

 
 
01
 

large enterprise scale

100% Pressure Testing: Every valve undergoes hydrostatic and pneumatic testing per API 598 prior to dispatch.

 
02
 

Standardized Production

Non-Destructive Testing (NDT): In-house X-ray (RT), Magnetic Particle (MPI), and Dye Penetrant (PT) testing to ensure the integrity of pressure-retaining castings.

 
03
 

Material Traceability

Full heat number tracking from the foundry to the final assembly. All shipments include EN 10204 3.1 Material Test Reports (MTR).

 
04
 

Third-Party Inspection

We regularly facilitate inspections by SGS, TUV, BV, and ABS to verify compliance for international tenders.

API Standard Flat Gate Valve

 

Factory Capability
1

Large-scale production capacity

Our streamlined production lines support large-scale OEM orders and customized project processing.

2

Full lifecycle traceability

Each gate valve has a unique batch/furnace number, allowing for immediate tracking of its material origin, processing records, and test results.

3

Standard compliance

Our factory is ISO 9001:2015, CE/PED, and API certified, meeting the stringent entry requirements for European and American industrial projects.

4

Fast track service

We maintain a strategic inventory of semi-finished valve bodies in WCB and CF8M materials to shorten delivery times for emergency shutdowns, maintenance, and EPC projects.

 

Our Certificate

 
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FAQ

 

Q: Do your gate valves support automation?

A: Yes. All our valves can be supplied with ISO 5211 mounting pads for easy integration with Electric or Pneumatic actuators.

Q: Can you provide 3D CAD files for engineering layouts?

A: Absolutely. We provide .STEP, .DWG, and .IGS files within 24 hours of your request to help your engineering team accelerate piping design.

Q: What is your standard lead time for API 600 valves?

A: We maintain a significant stock of standard WCB/CF8M bodies. Standard orders typically ship in 4–6 weeks, with fast-track options for maintenance shutdowns.

We're well-known as one of the leading gate valve manufacturers and suppliers in China. With abundant experience, we warmly welcome you to buy bulk advanced gate valve from our factory. If you have any enquiry about cooperation, please feel free to email us.

CLASS600 Carbon Steel Gate Valve, API600 Cast Steel Gate Valve, gate valve

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