Metal Seat Cast Steel Trunnion Mounted Ball ValvesCHQDV'S metal seat ball valves are widely used in gas process or transportation industry for conventional on-off, emergency shut off and quick opening and controlling the flow. Top flange is designed per ISO5211 for easy amount various type of actuator.Features

Full port or reduce port
Fire safe design
Blowout-proof stem
Anti-static
ISO 5211 top flange

High Temperature Service

General soft seat ball valves working temperature limited up to 400℉

but metal-seat ball valves are guranteed for a maximum service temperature of 800℉.

Low Pressure Reliable Sealing

Rigen's metal-seat ball valves adopt seat spring structure,which can push upstream set tightly against the ball valve surface creating a reliable sealing even if extremely low pressure

Pressure Test

Metal-seat ball valve maximum allowable seat leakage：

Air:ANSI/FC170-2 Class V

Absolute Fire Safe Guarantee

Chqdv's metal-seated ball valves are absolute fire safe design.Metal to metal is designed between ball and seat or body&bonnet even if high temperature environments to reach fire-safe purpose.In addition,other sealing components such as stem packing can also reach fire-safe function and prevent external leakage.So all parts of the valve will not be damaged by high temperature service.

Blow-out Proof Stem&Anti-static Device

As general ball valves,metal seated ball valve are provided with blow-out proof stem &anti-static device

SPECIFICATION

*Design standard:ASME B16.34/ API 6D

*Length of structure:ASME B16.10

*Flange connecting end:ASME B16.5

*Butt welding connecting end:ASME B16.25

*Wall thickness:ASME B16.34

*Fireproof test:API 607/API 6FA

*Inspection and test:API 598

*Pressure and temperature rating:ASME B16.34

*Product scope:NPS 1/2’’~24’’,CL150~CL1500 

*Main body material:WCB,WCC,WC6,LCB,,LCC,CF8,CF8M,CF3,CF3M ,A890 4A etc

*Trim material:A182 F6+N,F304+N,F316+N,F51+N,A182 F6+STL,F304+STL,F316+STL

*Valve seat material:F6+N,F304+N,F51+N,F6+STL,F304+STL,F316+STLetc

*Drive device:Lever, Worm wheel, Electric, Pneumatic etc.