Bonnet Gate Valve are recommended for several applications in the power industry, in particular in feed water lines, steam lines, and in services which involve high temperatures media.
Series -600LB~2500LB
Design Features
- Seats are welded in
- Position indicator is offered as standard
- Available in wedge gate and parallel slide configurations
- A range of compact pressure seal gate valves designed according to ASME B16.34
- Stellite® gr. 6 overlay on seat and wedge or disc; Stellite® gr. 21 overlay on backseat
- Standard ISO top mounting for easy assembly of any type of actuator or bevel gear
- Available options: wedge vent hole or overpressure pipe, by-pass, limit switch in open or closed position
- Pressure seal gasket has trapezoidal shape for a low load on bolting, and is supplied in graphite with integral stainless steel anti-extrusion protection
- Valves are offered as standard with manual operators (Hand wheel or bevel gear depending on size). Actuated options such as electric, pneumatic or hydraulic are available
- All range is offered in four standard cast materials: WCB (generally used on feed water lines), WC6 and WC9 (both used on steam lines), C12A (proposed for high temp. applications).
Product Specifications
- Size 2″-24″ DN50-DN600
- Pressure Class 600LB~2500LB
- End Connection RF, RTJ, BW
- Body Material WCB, WC6, WC9, WCC, CF8, CF3, CF3M, CF8M, 4A, 5A
- Wedge Material WCB, WC6, WC9, WCC, CF8, CF3, CF3M, CF8M, 4A, 5A
- Seat Material A105+F6a, A105+STL6, 304,316, Hastelloy, Monel, etc.
- Stem Material A182 F6a, 410, 420, 304, 316, 17-4PH, F11, etc.
- Design Standard API 600, API 6D
- Face to Face Standard ASME B16.10
- Test Standard API 598, API 6D
- Temperature Range -29℃~425℃
- Actuator Options Handwheel, Bevel Gear, Pneumatic, Electric
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Structure Style
- Full Port
- Pressure Sealed Bonnet
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Connection Standard
- Flange Drilling: ASME B 16.5, ASME B16.47
- Butt Weld: ASME B16.25, GB/T 12224
- Socket Weld: ASME B16.11
- Thread: ANSI B1.20.1