Product Details

The Wafer Butterfly Valve is available with various disc and seat material variations to suit a wide range of applications. It should be installed with its shaft horizontal, lower edge of disc opening downstream.

Design Features

Maximum working pressure PN16
Polished disc edge for improved concentric sealing and lower torque
Rubber liner is replaceable and fully isolates body and stem
O-ring moulded in the liner eliminates the need for flange gasket with locating holes for easier installation and centring

1. MATERIALS LIST

Part	Optional Materials	Type
Body	Grey cast iron;Ductile iron	GG25;GGG40
Disc	Stainless steel;Ductile iron chroming	304SS 316SS CF8M
Handle	Ductile iron	GGG40
Seat	Buna-N (NBR) ;EPDM	NBR EPDM
Shaft	Stainless steel	304SS,316SS,
Key	Carbon Steel,stainless steel	None
O-Ring	NBR	None

2. DESCRITION

Suitable Temperature: BUNA-N(NBR)≤80°C EPDM ≤120°C VITON ≤150°C
SuitableMedia: FreshWater,Sewage,SeaWater,Air,Vapour,Food,Medicine,Oils,Acids,Alkalis,Salts,Etc.
Test standard: API598 DIN3230 **Face to Face:GB/T12221-1989 DIN3202-1999 K1

3. Pressure & Temperature

Nominal Pressure 16 bar

Hydraulic Shell Test Pressure 24 bar

Hydraulic Seat Test Pressure 17.6 bar

4.The flange can be as per :

DIN2501 PN10/16, BS4504 PN10/16, BS10 TABLE D/E ,JIS2220 10K/16K,ANSI CL125/150