High-Performance Fireproof Seat Butterfly Valve

◆ High-performance fireproof butterfly valve: It has a double-sealed combined valve seat composed of soft seat components and metal parts. Within the rated pressure and temperature range, there are mainly soft seat components that play a bi-direction airtight seal on the pipeline medium. In a fire alarm, excessive heat damages the soft seat components, and the metal valve seat provides a reliable bi-direction seal. The fire valve seat is made of INCONEL, nickel alloy and other high temperature resistant materials, and contacts the valve plate through expansion and compression. The stem seal is composed of flexible graphite and graphite ring, which is resistant to high temperature, easy to adjust, easy to replace, and low torque. The valve plate is a spherical processed valve plate that is processed in a complete spherical shape. Each part of the sealing surface is a part of the spherical surface. The valve plate and the valve ring are processed on the same spherical surface. The gap between the two is small and there is no friction. The valve plate rotates smoothly, even at the axial sealing surface at the upper and lower top ends of the valve plate. Such a sealing surface is quite smooth despite contact during sealing, so the torque is reduced, and the sealing Performance has improved. Effectively reduce the wear of the valve seat, and can keep the valve securely sealed and operated for a long time.

◆ Super long usage life

◆ Bi-directional sealing

◆ Zero leakage in air pressure

◆ Regulated flow

◆ Renewable seat

◆ Blowout proof stem

◆ Low torque

◆ Low emission packing

◆ Fire safe design

◆ Design: API 609

◆ Face to face: API609 / ISO5752-20 / ISO5752-13 / DIN F4 /EN558

◆ Flange end: ASME B16.5 / ASME B16.47 / EN1092-1 / GOST 12815 / Gost 33259 /MSS-SP44

◆ Butt-welding end: ASME B16.25

◆ Test: API598

◆ Fire safe: API607 / API6FA

◆ Size: 2”~64”(DN100~DN1600)

◆ Class:150Lb~1500Lb / PN6 ~ PN420

◆ Connection: Double flange / Lug / Wafer(Butt weld as request)

◆ Operation: Manual / Worm Gear / Pneumatic actuator / Electric actuator

◆ Temperature: -60°C to +300°C

◆ Application: air separation / Stem / Oil&gas / industry of fine chemicals / offshore drilling platform / solar thermal electricity

◆ Body: Carbon steel(WCB,LCB,WC6,WC9,C5) /

◆ Stainless steel(CF8,CF8M,CF3,CF3M) /

◆ Duplex stainless steel(4A,5A,6A) /

◆ Hastelloy alloy(N-12MV,CW-12MW,CW-2M) /

◆ Inconel alloy(CY-40,CW-6MC) /

◆ Monel alloy(M35-1) /

◆ Aluminium bronze alloy(C95400,C95500,C95800,AB2C)

◆ Disc: Stainless steel(CF8,CF8M,CF3,CF3M) /

◆ Duplex stainless steel(4A,5A,6A)Hastelloy alloy(N-12MV,CW-12MW,CW-2M)/

◆ Inconel alloy(CY-40,CW-6MC) /

◆Monel alloy(M35-1) /

◆ Aluminium bronze alloy(C95400,C95500,C95800,AB2C)

◆ Stem: SS420 / 17-4PH / F53 / XM-19 / Monel-K500 / Inconel-625 / Hastelloy-276

◆ Body Seat:SS316 / Inconel

◆ Body seal: PTFE+Viton / RPTFE+Viton

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