Fire Safe Seat High Performance Butterfly Valves CLASS 150 - 600
High Pressure, High Temperature, Bi-directional, Zero Leakage Butterfly Valves
The SHENGFEI double offset fire safe seated high performance butterfly valve incorporates two seats which function together to seal off pipeline flow. In normal operation, the soft seat provides a bi-directional “bubble tight” shutoff (zero leakage)…
Technical Details
Size Range and Pressure Rating:
ANSI Class150 NPS 1 1/2 to 30 / DN 40 to 1200
ANSI Class 300 NPS 1 1/2 to 24 / DN 40 to 600
ANSI Class 600 NPS 1 1/2 to 14 / DN 40 to 350
Temperature range:
Fire Safe Seat -60°F to 1022°F (-51°C to 550°C)
Connection Style:
Wafer, Lug, Simi-Lug, Double Flange
Face To Face:
ANSI B16.10 / API 609 / MSS-SP-68
Flange Drilling:
ASME B16.5: Class 150, 300, 600
Top Flange:
ISO 5211
Shell/Seat Test:
API 598
Shutoff Rating:
Class VI Bubble Tight, Class V after fire
Operate:
Bare Stem, Hand Lever, Worm Gear, Actuated
Commen Materials
Body:
Carbon Steel(A216-WCB) or A105
316 Stainless Steel (CF8M)
304 Stainless Steel (CF8)
Aluminum Bronze
Duplex stainless steel
DISC:
316 Stainless Steel (CF8M)
304 Stainless Steel (CF8)
Aluminum Bronze
Duplex stainless steel
STEM:
17/4PH (A56 4-630)
316SS
Duplex stainless steel
MONEL
SEAT:
316 SS+RTFE with FPM Rubber Energizer (O Ring)
316 SS+UHMWPE with FPM Rubber Energizer
Inconel+RTFE with FPM Rubber Energizer
Inconel+UHMWPE with FPM Rubber Energizer
SHAFT BEARING:
316 SS+ DuPont, RTFE
PACKING SEAL:
Graphite
* More materials for body, disc, stem and Packing are available upon request for specific applications.
* O Ring can be other Rubber upon request.
Features:
High Pressure, High Temperature, Bi-directional, Zero Leakage Butterfly Valves
The SHENGFEI double offset fire safe seated high performance butterfly valve incorporates two seats which function together to seal off pipeline flow. In normal operation, the soft seat provides a bi-directional “bubble tight” shutoff (zero leakage); the metal seat provides bi-directional shutoff in the event of a fire, in conformance to industry fire-safe requirements. The stem is one piece blowout-proof, Square end connect to operator. Rigorously 100% internal tests prove bi-directional zero leakage seal. Third-party inspections will be performed on the customer’s request.
Sealing Design
Fire Safe Seat Design - Equal to FLOWSEAL
Applications:
HVAC industries
Mining
Oil and Gas
Pulp and Paper
Power Generation
Chemical/ Petrochemical Processing
Hydrocarbon Processing
Marine and Commercial Shipbuilding.
Water and Waste Water Treatment
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