Double Bleed&Block valve Flange end 150LB -2500LB Materal::A105,LF2,F11,F22,F316,F316L,F304,F304L,F51,F53,F55,F91 Good qualit
Double Bleed&Block valve
Flange type
1. Two or Three-piece body design
2. Double block and bleed or automatic pressure release in body chamber
3. Trunnion supported design reduces operating torque
4. Two sets of O-rings plus firesafe stem packing prevents leakage
5. Corrosion resistant low friction bearings
6. 17-4PH or Inconel seat springs
7. Sealant injection fittings for emergency stem or seal sealing
8. Direct mount topworks pad for actuator or gear operator
9. 8" & larger valves are equipped with lifting lugs
10. Locking device (lock not included)
11. NACE MR0175 (Superseded by ISO 15156)
12. Anti-blowout trunnion stem design
Standards
These valves comply with the applicable requirements of the following standards:
Design and manufacture:API6D,BS5351,API608,ASME 16.34
Face to face(end to end):ASME B16.10/API6D
Flange connection:ASME B16.5,26"-60" to ASME B16.47 or to API605 on request
Test and inspection:API598/API6D
Produce Ability
Size:NPS 2"-56"
Pressue:Class 150-2500
Material::A105,LF2,F11,F22,F316,F316L,F304,F304L,F51,F53,F55,F91
Double Bleed&Block valve
