DBB球阀
规格:1/4" to 6"
压力:150LB~2500LB
温度范围:‐196°C to 200°C
Discover the essentials of Double Block and Bleed Valve, their unique features, and how they compare and contrast with Trunnion Ball Valves. Simplify your valve selection process with our concise guide.
Product Range:
- Size: 1/4” to 6”
- Pressure Classes:
- ASME 150# to 600#
- ISO 17292 800#
- 3000, 6000 psi
- Temperature Range: ‐196°C to 200°C
Design Features:
- Soft Seating Standard
- Stem Extension On Request
- Welded Pups / Nipples On Request
Material Selection:
Temperature Range: ‐196°C to 200°C
BODY, CLOSURE:
- CS (ASTM A105),
- LTCS (ASTM A350 LF2)
- Austenitic SS (ASTM A182 F304, F316)
- Duplex SS 22% Cr (ASTM A182 F51)
- Superduplex SS 25% Cr (ASTM A182 F53/F55)
- 6Mo SS (ASTM A182 F44)
- Inconel 625
- Incoloy 825
- Monel
BODY SEALS / SEAT SEALS:
- Viton A FKM O‐ring
- Viton GLT FKM O‐ring
- Viton AED FKM O‐ring
- HNBR AED O‐ring
- FFKM O‐ring
- PTFE Seals
- Graphite Packing / Gaskets
TRIM (SEAT, BALL and STEM):
- CS (ASTM A105), LTCS (ASTM A350 LF2) + ENP 0.003”
- AISI 410 Martensitic SS (ASTM A182 F6a)
- 17‐4 PH
- Austenitic SS (ASTM A182 F304, F316)
- Duplex SS 22% Cr (ASTM A182 F51)
- Superduplex SS 25% Cr (ASTM A182 F53/F55)
- 6Mo SS (ASTM A182 F44)
- Inconel 625
- Inconel 718
- Incoloy 825
- Monel
SEAT INSERT:
- PTFE / RPTFE
- Nylon / DEVLON V
- PCTFE / KEL‐F
- PEEK
BOLTING:
- ASTM A193 B7/B7M, ASTM A320 L7/L7M,
- A193/A320 B8/B8M
- UNS S31803, UNS S32760, ASTM A453‐GR.660