Concentric Viton Seat Butterfly Valve

◆ Center line butterfly valve according to the seat material into rubber lining center line butterfly valve and fluorine plastic lining butterfly valve, rubber lining center line butterfly valve mainly for cast iron valve body lining EPDM, NBR, VITON rubber and so on rubber, mainly used for water, serous situation, often used in medium with fresh water, sea water, sewage etc.

◆ Concentric design

◆ Non Pin stem

◆ Low torque

◆ Zero leakage

◆ Low torque

◆ Self cleaning

◆ Blowout-proof stem

◆ ISO 5211 top flange

◆ Design: API 609

◆ Face to face: ISO5752-20 / ISO5752-13

◆ End connection: ASME B16.5 / ASME B16.47 /EN1092-2

◆ Test: API598

◆ Size: 2”~80”(DN50~DN2000)

◆ Class: 150Lb(PN10,PN16)

◆ Connection: Double flange / U-Type Flange / Wafer / Lug

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

◆ Temperature: -20°C to +160°C

◆ Application: Sewage treatment / Desalination of sea water / Chemical / Corrosion media

◆ Body: Cast iron / Ductile iron / WCB

◆ Disc: Ductile iron+Ni / 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 / F304 / F316 / K500

◆ Seat: EPDM / NBR / Viton

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