Double block and bleed valve
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Double block and bleed valve

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Double block and bleed valve has two balls in integral body, the ends can be threaded, SW or BW end for both side. Materials can be A105, LF2, F304, F304L, F316, F316L, size from 1/2" to 4", pressure class 150# to 1500#.
Product Features
1. Maximum working pressure up to 10000 psig (689 bar)
2. Working temperature up to 1200 F (649 C) with Graphite packing
3. Colour coded valve function identification
4. Every valve is hydraulic pressure tested in accordance with EN 12266-1 and API 598. Every set is
5. tested with nitrogen for leak-tight performance at 6000 psig
6. Fire-tested design in accordance with BS 6755 part 2/API 607
7. Flanged connections comply with ASME B16.5 RF and RTJ
8. Pressure ratings in accordance with ASME B16.34
Applications
1. Process piping isolation points
2. Direct mount to instruments
3. Close coupling of instruments
4. Double block and bleed isolation
5. Vents and drains
Ball Type Valve Specification
316 stainless steel double block and bleed ball valve
1. Maximum working pressure up to 10000 psig (689 bar).
2. Working temperature are as follows:
PTFE: -65℉ to 450℉ (-54℃ to 232℃ )
PEEK: -65℉ to 450℉ (-54℃ to 232℃ )
3. Actuate at quarter-turn.
4. Directional stem flats show open or closed position.
5. Bottom-loaded stem prevents stem blowout and enhancessystem safety.
6. High-strength stem bearing provides smooth actuation andeliminates galling between valve stem and body.
7. It may be required to adjust the packing during the servicelife of the valve.


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