Industrial Gate Valves Manufacturer & Supplier
Our company mainly deals in gate valves, primarily for use with steel pipes and fittings. These are industrial-grade valves, conforming to API and ANSI standards. They are suitable for applications in the oil, gas, and chemical industries. We can provide a one-stop solution for all your piping system needs.
What is Gate Valve?
A gate valve is a linear motion valve used to fully open or fully close the flow in a pipeline. It uses a gate or wedge disc to move up and down, making it suitable for on/off service rather than flow throttling.
Gate valves are widely used in water supply, oil and gas, power plants, chemical processing, and general industrial piping systems. They are commonly selected when low flow resistance, reliable shut-off, and long-term service performance are required.
Gate Valves Type By Design
Steel Gate Valve
The steel gate valve features a compact structure, small dimensions, and excellent rigidity, while ensuring safe and reliable sealing. It complies with the relevant requirements of the American National Standards Institute (ANSI) B16.34, as well as the American Petroleum Institute (API) standards API 600, API 602, and API 603.
Forged Steel Gate Valve
Forged steel gate valves are resistant to high temperatures and high pressures, and offer excellent sealing performance. They are widely utilized in the petroleum, natural gas, and chemical industries, serving the function of complete opening and shut-off.
Screw Gate Valve
Screw gate valves utilize a threaded connection method. They are predominantly used for small-diameter applications. Their sealing surfaces typically take the form of either flat or conical faces, and their opening and closing operations are primarily controlled by a gate disc.
Welding Gate Valve
The Welding Gate Valve utilizes a butt-weld connection. Its valve seat sealing surface consists of metal or Stellite alloy (STL). It is primarily employed in high-pressure and high-temperature environments.
Parallel Disc Gate Valve
The Parallel Disc Gate Valve features low flow resistance and bi-directional sealing capabilities. Pressure ratings range from 3,000 psi to 15,000 psi. It is suitable for use in the oil and gas industry.
How to Select Gate Valve?
Valve selection generally requires consideration of: material, structural type, connection method, pressure, temperature, and medium. Different applications also have different valve requirements.
Gate valves can be classified as follows: rising stem gate valves, non-rising stem gate valves, wedge gate valves, and knife gate valves.
Classification by medium and material:
- Water treatment: Cast iron or ductile iron gate valves.
- Oil and natural gas: Carbon steel gate valves.
- Corrosive media: Stainless steel valves.
- High-temperature and high-pressure systems: Alloy or forged steel valves.
Technical Specifications
Size: 1/2 Inch – 60 Inch (DN50 – DN1500).
Pressure Rating: Class 150 LB – 2500 LB (PN16 – PN420).
Material: Carbon steel, Stainless steel, Alloy steel, including WCB, GS-C25, LCB, LCC, LC1, LC3, CF8, CF8M, CF3, CF3M, WC6, C5, C9, C12, 4A, 5A, MONEL, ALLOY20, C95800.
Connetcion End: RTJ, BW, Flanged.
Operation: Level, Worm gear, Eletcric, Pneumatic.
Design & Manufacture Standard: API6D, API608, CE,ISO17292 etc.
Test Standard: API 598, API 6D.
How it works?
The working principle of a gate valve is to control the flow of fluid by the up-and-down movement of a valve plate within the valve body.
- The detailed process is as follows: Opening the valve with the handwheel causes the valve stem to move upwards, raising the valve plate. This allows the medium to flow through.
- Closing the valve by turning the handwheel clockwise closes the valve, causing the valve stem to move downwards and lowering the valve plate. This blocks the flow of fluid.
