Butterfly Valves - Ductile Cast Iron & Stainless Steel, Dn 40-1000, Pn 1.0 & 1.6, Multi-drive Options With Robust Seal Materials

Our range of Butterfly Valves are available following Specifications :-
Adoption standard
Design standard: ISO10631-1994 or BS EN593-1998
Flange connection dimension:ISO 7005-2 or BSEN1092-2002
Structure length: ISO5752-1988 or BS EN558-1
Pressure test: ISO5028-1993 or BS6755-I-1986

Main technology Parameter
Nominal diameter
DN(mm)
40-1000

Nominal pressure
PN(mm)
1.0
1.6

Test pressure(Mpa)
Shell test
1.5
2.4

Test pressure(Mpa)
Seal test
1.1
1.76

Appropriate medium
Air,water,sewage,steam,coal gas,oil

Drive modality
Handle,worm gear box, penumatic drive,electric drive



Material for main parts

Parts name
Material

Body
Ductile cast iron,cast steel,Alloy steel, stainless steel

Disc
Grey cast iron,ductile cast steel,cast steel,stainless steel and hoc material

Seal ring
Manifold rubber,such as EPDM, PTFE,NBR,Viton,CR

Stem
2Cr13,stainless steel

Packing
O-ring,flexible graphite

Butterfly valve seal material choice and appropriate temperature
Material variety
Neoprene
Styene rubber
EPDM
PTFE
Silicon rubber
Fluorine rubber