Description
Metal seated trunnion ball valve adopted advanced hardening technology for ball and seat, such as such as supersonic spray,nickel base spray welding, surface specialty hardening,hard alloy spray welding and ceramic material with high strength and hardness.
Two or Three Piece Metal Seated Forged Trunnion Mounted Ball Valve have dvanced rocket-spraying process ensures that sealing is realiable under all temperatures — pressures,Seats are Tungsten Carbide HVOF(High Velocity Oxy Fuel) or overlay cladding coated with metal to metal contact between seats and ball, with metal to metal seat sealing characteristics, and it can clean dirt at surface of the gates,Hardness of coating surface: up to HRC68～ 72
Characteristics
1, trunnion ball design with full port ( 2 piece or 3 piece body is available)
2, anti-static structure
3, fire safe design, blow out proof stem
4, double block and bleed function
5, side entry
6, Wall thickness complies with B16.34.
7, operation include handle wheel, gear box, pneumatic actuator and electric actuator.
Valve materials
Body material : WCB,A105,LCB,304/F304, 316/F316 S.S.,304L/F304L,F316L, Alloy steel
Ball material : A105, F304/F316/316L (chrome plate is available, 100µm ~ 1000µm)
Stem material :410S.S., F304,F316, F316L
Seat material : WC-Co
Applicable standard for Valve :
Design and Manufacture according to: API608,API6D,ASME B16.34, DIN,
Length of Face to face : ASME B 16.10,DIN
Flange size standard: ASME B 16.5, DIN
Test and inspection standard: API 598, DIN
NPS : 2''-36'' ( 50mm - 900mm )
Pressure range : 150 class - 1500 class, PN16-PN64
