Soft Seat High Performance
Butterfly Valves CLASS 150 – 900
High Pressure, High Temperature, Bi-directional, Zero Leakage Butterfly Valves
The SHENGFEI double offset soft seat high performance butterfly valves are with superior long service life over 100,000 cycles ( zero leakage shutoff ) and extremely easy maintenance in the field…
Technical Details
Size Range and Pressure Rating:
ANSI Class150 NPS 1 to 56 / DN 25 to 1400
ANSI Class 300 NPS 1 to 48 / DN 25 to 1200
ANSI Class 600 NPS 1 to 24 / DN 25 to 600
ANSI Class 900 NPS 1 to 24 / DN 25 to 600
Temperature range:
RTFE Soft Seat -20°F to 500°F (-28°C to 260°C)
Connection Style:
Wafer, Lug, Simi-Lug, Double Flange
Face To Face:
ANSI B16.10 / API 609 / MSS-SP-68 / ISO 5752 /BS5155/ EN 558
Flange Drilling:
ASME B16.5: Class 150, 300, 600, 900
Top Flange:
ISO 5211
Shell/Seat Test:
API 598
Shutoff Rating:
Class VI, Bubble Tight
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:
ISO 5211
Shell/Seat Test:
RTFE with FPM Rubber Energizer (O Ring)
PTFE with FPM Rubber Energizer
UHMWPE With FPM Rubber Energizer
SHAFT BEARING:
316 SS+ DuPont, RTFE
PACKING SEAL:
PTFE
*More materials for body, disc and stem 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 soft seat high performance butterfly valves are with superior long service life over 100,000 cycles ( zero leakage shutoff ) and extremely easy maintenance in the field. The RTFE soft seat provides a bi-directional bubble tight shutoff (zero leakage). The unique seat design creates a self-energized seal in vacuum-to-low pressure applications. Under higher pressure conditions, the seat is also designed to permit, confine, and direct movement of the soft seat against the disc edge. The stem is one piece blowout-proof, Square end connect to operator. Rigorously 100% internal tests and third-party inspections will be performed on the customer’s request.
Sealing Design
Soft Seat Design - Equal to BRAY
Soft 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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