1. ) Specifications
1. Carbon Steel and Stainless Steel
2. Threaded, Socket weld, or Butt Weld Ends
3. Blowout Proof Stem for Safety
4. Bolt Bonnet Design
5. Material Traceability
6. Live Loaded Stem Design for High Cycle Life
7. ISO 5211 Direct Mounting Pad
2. )Features
1. Three pieces design
2. Fire-safe, antistatic and blow-out proof stem functions
3. Low torque value
4. Locking device and handle indicating open/close
5. ISO 5211 mounting design upon request
6. Stem/bonnet extension for cryogenic service
7. Full or Reduced bore(FP or RP)
3. )Operation type
Lever, Pneumatic actuator, Bare stem.
Standard
Design and Manufacture: ASME B16.34
Inspection and Test: API 598
Thread ends: ASME B1.20.1(NPT)
End to end: MFG or customers
Pressure-temperature ratings: ASME B16.34
NACE: NACE 0175
4. )Material
ASTM A105, A182 F304 304L 316 316L 321 F11 F22, A350 LF2 LF1 LF3 or by customers
(Cast Steel, Alloy Steel, Stainless Steel, Special Steel)