Cycle life up to 2, 000, 000 cycles. Seat Material: PTFE or RTFE with Resilient Energizer. These quarter-turn valves are the preferred choice and a suitable alternative for gate and ball valves in many industries due to their ease of operation, compact design, low maintenance and throttling functions. Oil & Gas (Onshore Refinery, storage and distribution).
Top flange ISO 5211. DNV GL, Sour Service. Pneumatic Actuators. It is possible to use a butterfly valve to throttle moderate pressure drops, this can be achieved by partially opening the valve. In high-performance butterfly valves, the shutoff may be provided by an interference-fit seat design or a line-energized seat design, where the pressure in the pipeline is used to increase the interference between the seat and disk edge. Fugitive Emissions Testing. Double flanged high performance butterfly valve body. By using a double-offset design a PTFE seat and a fire-safe (metallic) seat may be used to achieve zero-leakage and a fire-safe design. Pressure ratings: - ANSI Class 150 to 285 psi (2000 kPa). 196°c to 500°c according to pressure.
Why SELECT SIL-3 Valves/ Actuators? This allows the end user to use other actuators should their be a preference or replacing a damaged actuator with anyone's ISO-5211 actuator in an emergency. Reliable sealing even with extreme temperature and pressure conditions. Soft seat: TFM-4125, PTFE, RTFE, NBR, EPDM, FKM. Packing Material: PTFE.
Double-Flanged Butterfly Valves have two flanges, one at either end of the body, which is used to bolt the valve to the pipeline flanges. Compliance includes: API 598/607/609/MSS-SP-68 standards. Water- and Wastwater technology. They are also suitable for use with aggressive fluids such as acids and alkalis. Metal Seat (Cryogenic) -320°F to +250°F (-196°C to +121°C). Double off-set configuration with conical angled disc design. The Fisher 8590 high performance Butterfly valve maintains tight shutoff and can be specified for a wide range of pressure and temperature conditions. Double & Triple Butterfly Valves with wafer, lugged & flanged bodies. Underneath drawn gland packing for easy adjustment and direct actuation mounting.
The triple offset butterfly valve is used in critical demanding applications in: - Oil & Gas (Offshore FPSO, fixed platforms and LNG carriers). This type is recommended for use in general-purpose, non-critical applications. Materials of Construction|. Valve Inspection and Testing.
Learn more about each Butterfly Valve we offer: Butterfly valves are typically used in isolation or moderate flow control applications. No contact between seat and disc in open/intermediate position. Lockable position plate for wrench operated valve. Triple Offset Butterfly Valves. Double flanged high performance butterfly value inn. Technical information is only for reference subject to change without notice. This butterfly valve has a unique structure with ultra reliable sealing performance, wide working conditions and low operation torque.
INFLATABLE SEAT INFLAS. Seat, Disk and Stem of a Wafer-Style Butterfly Valve. WAFER TYPE CHECK VALVE RSK. BUTTERFLY VALVE High Performance Triple Offset Metal Seated Fire Safe Cryogenic also available.
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