GGG50 PN16 PN25 Double Eccentric Butterfly Valves for water pump
Design standard: API 609. BS5155
Body material: GGG40/GGG50/DUCTILE IRON
Nominal diameter: DN200
Pressure: PN10 PN16 PN25, CL150 (PN20)
End connection: RF. Raised Face
Face to face: EN558 Series 13/ISO5752-13
Top flange ISO5211.
Renewable seat Design
Mode of operation: Gearbox Handwheel
Test and inspection: API 598. EN1226
Available Body Material: Ductile Iron , Carbon steel, Stainless steel, Alloy steel.
Available Body Seat Ring: SS304, SS316, STL, Brass, Bronze
Optional Disc Seat Ring: EPDM, NBR, PTFE, Teflon. Neoprene
Optional End connection: Wafer, Lug, Flanged.
Face to face: EN558 Series 13/14, long type or short type
Normal diameter: 4″~96″ (DN100~DN2400).
Pressure range: PN10~PN25
Available Operation: Gearbox, Electric, pneumatic actuator
Working temperature: -46℃~+200℃.
Double Eccentric flanged butterfly valves, the axis of the valve stem deviates from the center of the butterfly plate and the center of the body. The effect of double eccentricity enables the butterfly plate to quickly detach from the seat after the valve is opened, which greatly eliminates unnecessary excessive squeezing and scraping between the butterfly plate and the valve seat, reduces the opening resistance, reduces wear and improve Seat life.
The double eccentric butterfly valve uses an eccentric structure design, which is widely used in the fluid piping system of water supply and drainage, sewage, construction, petroleum, chemical industry, textile, papermaking, hydropower, metallurgy, energy and other projects for regulation and interception