China High Quality Double Eccentric Butterfly Valve Factory – Mono Butterfly Valve,CI,DI,Cast Iron, Ductile Iron,GG25,GGG40,DN2000,DN1800,DN1600,DN1400,DN1200,DN1000,DN800 – UNIQUE

Product Feature

Concentric structure, with pin on the through shaft or pinless double half shaft design. Disc has two way bearing, no installation direction requirements. End flange can meet different connection standards. Backed replaceable seat with good performance and a longer working life. Easy installation, no need flange gasket.

Technical Parameters

Nominal diameter: 600~1200 600~1200 Nominal pressure: 1.0 1.6 Testing pressure: Shell(Mpa) 1.5 2.4 Seal(Mpa): 1.1 1.76 Suitable temperature: -40°C~200°C Suitable medium: Drinking water,sewage,seawater,food,medicines,gas,oil and acid

Main Raw Material

Body:Cast iron, Ductile iron, Carbon steel,CF8M Disc: Plated ductile iron, CF8, Aluminum bronze Stem: Stainless steel Seat: EPDM/NBR, WRAS-EPDM,Viton ,Silicon Actuator: Lever, Gearbox,Hand wheel, Pneumatic, Electric 1.Replaceable backed seat 2.Pin disc/Pinless Nylon disc/Epoxy disc

Reference Standard

Design standard API 609 Testing standard API 598 Top flange standard ISO5211 End flange standard DIN PN10 / PN16,ANSI 125# / 150#,BS4504 PN10 / PN16 Face to face standard API 609,EN558-1 20 Series,ISO5752 20 Series