TFW PRODUCTS

Size: DN50-DN1000
Body:Cast Iron,Ductile Iron,Carbon Steel,Stainless Steel
Seat:EPDM,NBR,PTFE,Viton,Neoprene,Hypalon,Silion
Shaft: Stainless Steel 416,316,304
Disc:Ductile Iron+Ni,CF8,CF8+PTFE,CF8M,CF8M+PTFE,Bronze
Bushing:PTFE
O-ring:NBR EPDM

butterfly Valve Applicable Standards:
Design & Manufacture according to : BS 1868
Face to Face according to : ASME B16.10
Flange Dimensions according to : ASME B16.5
Pressure & Temperature according to : ASME B16.34
Test & Inspection according to : API 6D / API 598
Visual Inspection according to : MSS SP-55
Marking according to : MSS SP-25

butterfly Valve Applicable Standards:
Design & Manufacture according to : BS 1868
Face to Face according to : ASME B16.10
Flange Dimensions according to : ASME B16.5
Pressure & Temperature according to : ASME B16.34
Test & Inspection according to : API 6D / API 598
Visual Inspection according to : MSS SP-55
Marking according to : MSS SP-25

Nominal pressue (MPa) 1.0-1.6
Nominal diameter(mm) 50-600mm
Test pressure Shell 1.5-2.4
(MPa) Seal 1.1-1.76
Applicable temperature 150
Applicable medium Fresh water, Sewage, Sea water, Air, Vapor, Food, Medicine, Oils, Acids,Alkalis, etc.
Operating mode manual, worm gear, pneumatic, electric, etc.

1. Small in size, light in weight, easy installation and maintenance.
2. Simple and compact construction, quick 90 degree on-off operation.
3. Minimized operating torque, energy saving.
4. Flow curve tending to straight line, excellent regulation performance.
5. Long service life, standing the test of tens thousands opening/closing operations.
6. Wide selection of materials, applicable to various medium.