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butterfly check valve

Application: Wafer type dual plate butterfly check valve adopts an advanced foreign structure design and is an energy-saving product conforming to the world standard. It is good at the check performance, safe, reliable, small in the flowing resistance and mainly suitable for petroleum, chemical, food, pharmacy. light & textile, paper-making, water supply and drainage, refinery and energy etc. systems, used as an one-way valve.

Body material

Valve plate

Shaft

Rubber block


Spring

Material name

Code

material name

1

Material name

Material name

code

℃

Material name

Cast iron

Z

Black cast iron ball plating

2




Stainless steel


EPDM

x3

-46 ~ 121



Stianless steel

Ductile iron

Q

Aluminum bronze

3

Neoprene

x4

-29 ~ 99

Carbon steel

C

ZG1Cr1BNi9Ti Stainless steel

4

NBR

x5

-23 ~ 82

Stainless steel  

P

CF8M stainless steel  

5

Viton

x6

-23 ~ 150



CF8 stainless steel  

6




DN

50(2'') ~ 700(28'')

50(2'') ~450(18'')

mm(inch)

PN

1.0

1.6

Mpa


Test pressure

Case  

1.5

2.4

Mpa

Seal

1.1

1.76

Mpa

Suitable temperature

-15℃ ~ 150℃

Suitable media

water, sewage, air, steam, food, medicines, oils, acids



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