High-Temperature and High-Pressure Gate Valve

Summary:Safe and reliable under high-temperature and high-pressure conditions. Pressure self-sealing valve bonnet. Full-bore design, exposed stem with support bracket; the valve stem moves up and down while the handwheel remains stationary. Compact structure with excellent valve rigidity. Smooth flow path and low flow resistance coefficient. Effort-saving operation during opening and closing, ensuring reliable sealing and effortless, flexible handling. Optional transmission methods available.

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Product Details

Product Features

Safe and reliable under high-temperature, high-pressure conditions

Self-sealing Valve Cover for Pressure

Full bore, rising stem with bracket, valve stem moves up and down while the handwheel remains stationary.

Compact structure with excellent valve rigidity

The channel flows smoothly with a low flow resistance coefficient.

Easier to operate during opening and closing, reliably sealed, and lightweight yet highly flexible in handling.

Transmission method available as an option

Product Specifications

Product Name	Design Specifications	Structural length	Connection standard	Testing and Inspection	Pressure-Temperature	Product Identification	Supply Specifications
Gate valve	GB/T 12234	GB/T 12221	HG/T 20592	GB/T 13927	GB/T 12224	GB/T 12220	JB/T 7928
Gate valve	API 600	ASME B16.10	ASME B16.5	API 598	ASME B16.34	MSS SP-25	API 600

Size range: DN15–1000, NPS 1/2–40

Pressure range: 1.0–42.0 MPa, 150–2500 LB

Connection method: Flanges, Butt Welds, Socket Welds, Threads

Drive method: Handwheels, bevel gears, electric, pneumatic, and more

Major component materials

Name	Materials
Valve body	WCB	WC6	WC9
Gate valve	WCB	WC6	WC9
Four-opening loop	1Cr13	20Cr1Mo1VA
Valve cover	25	12Cr1Mo1VA
Support structure	WCB	WCB/WC6
Valve stem	1Cr17Ni12	20Cr1Mo1VA
Valve seat	25	20Cr1Mo1VA
Filler	Flexible Graphite
Gasket	18-8 Flexible Graphite
Valve stem nut	ZCuZn25Al6Fe3Mn3
Applicable Temperature	-29 to 425°C	-29 to 538°C	-29 to 595°C