qilong valve certficate

Gate Valves

A gate valve, also known as a sluice valve, is a valve that opens by lifting a round or rectangular gate/wedge out of the path of the fluid.
The distinct feature of a gate valve is the sealing surfaces between the gate and seats are planar.The gate faces can form a wedge shape or they can be parallel.Typical gate valves should never be used for regulating flow, unless they are specifically designed for that purpose.

Cast Steel Gate Valve

Design and Manufacture ANSIB16.34,API600,API603,BS1414
Face to face(end to end) ANSIB16.10,API6D
Test and inspection API598,API6D
Size Range: 2" to 48" N.B
Pressure Ratings: ANSI 150, 300, 600, 900, 1500, 2500
End Connections: Flanged, Buttweld, Socket Weld , Hub Connectors, Compact Flange or other proprietary connections.

Forged Steel Gate Valve

Size Range: 1/2" - 8" /DN15-DN200
Pressure rating: ANSI Class150LB- 2500LB / PN16- PN100
Forged Steel: ASTM A105, ASTM A350 LF1, ASTM A350 LF2, etc.
Stainless Steel: ASTM A182 304 , ASTM A182 304L, ASTM A182 316, ASTM A182 316L, ASTM A350 F11, ASTM A350 F22, ASTM A350 F51, ASTM F347, etc.

Cryogenic Gate Valve

Body material: low-temperature carbon steel, carbon steel
Nominal diameter: 1/2"~32"(DN15~800)
Pressure range: Class150~2500(PN10~420)
End connection: RF, RTJ, BW
Working temperature:-196℃~+120℃
Operation: handwheel, gear box, electric, pneumatic , hydraulic actuator, etc.

Pressure Seal Gate Valve

The pressure seal gate valves are designed in accordance with API600 and ASME B16.34 for service of high temperature and high pressure and are widely used in fossil fuel power plant. Compared with bolted bonnet joint valves, it provides absolute reliable sealing of the bonnet joint, so that the pressure seal valves are more compact and rigid as well as maintenance cost-effective at high temperature and high pressure service.

Knife Gate Valve

Design Standard: MSS SP-80,DIN EN12266-1
Test: API 598
Products Range
Size: 2" ~ 40"
Rating: ANSI 150lb ~ 300lb
Body Materials: Carbon Steel, Stainless Steel, Alloy Steel, Duplex Steel
Operation: Handwheel, Gear, Motor, Pneumatic, Hydraulic

Rising Stem Slab Gate Valve

Body material: carbon steel, stainless steel,
Nominal diameter: 2"~36"
Pressure range:Class150~2500
End connection: RF, RTJ, BW
Working temperature:-46℃~+200℃
Operation : handwheel, gear box, electric, pneumatic actuator, electro-hydraulic actuator , etc.