Main Parts And Materials
Material Name
Q11F-(16-64)C
Q11F-(16-64)P
Q11F-(16-64)R
Body
WCB
ZG1Cr18Ni9Ti
CF8
ZG1Cr18Ni12Mo2Ti
CF8M
Bonnet
WCB
ZG1Cr18Ni9Ti
CF8
ZG1Cr18Ni12Mo2Ti
CF8M
Ball
ICr18Ni9Ti
304
ICd8Ni9Ti
304
1Cr18Ni12Mo2Ti
316
Stem
ICr18Ni9Ti
304
ICr18Ni9Ti
304
1Cd8Ni12Mo2Ti
316
Sealring
Polytetrafluorethylene(PTFE)
Gland Packin
Polytetrafluorethylene(PTFE)
Main Outer Size
DN
Inch
L
d
G
W
H
15
1/2″
51.5
11.5
1/2″
95
49.5
...
Product structure characteristics
A check valve is an “automatic” valve that is opened for downstream flow and closed for counter-flow.Open the valve by the pressure of the medium in the system, and close the valve when the medium flows backwards.The operation varies with the type of check valve mechanism.The most common types of check valves are swing, lift (plug and ball), butterfly, check, and tilting disc.Products are widely used in petroleum, chemical, pharmaceutical, chemica...