Product Detail
Product Tags
Related products
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...
Product Structure
MAIN OUTER SIZE
OD/IDxt
B
C
Kg
10
18/10×4
21
28×1/8
0.13
15
24/16×4
21
34×1/8
0.15
20
30/20×5
24
44×1/6
0.25
25
35/26×4.5
29
52×1/6
0.36
32
41/32×4.5
32
58×1/6
0.44
40
48/38 x5
33
65×1/8
0.50
50
61/50×6.5
35
78×1/6
0.68
65
79/66 x 6.5
40
95×1/6
1.03
80
93/81×6
45
110×1/4
1.46
...
Product Structure
Main Parts And Materials
Material Name
H71/74/76H-(16-64)C
H71/74/76W-(16-64)P
H71/74/76W-(16-64)R
Body
WCB
ZG1Cr18Ni9Ti
CF8
ZG1Cr18Ni12Mo2Ti
CF8M
Disc
ZG1Cr18Ni9Ti
CF8
ZG1Cr18Ni9Ti
CF8
ZG1Cr18Ni12Mo2Ti
CF8M
Sealring
304,316,PTFE
Main Outer Size
MAIN OUTER SIZE(H71)
Nominal diameter
d
D
L
15
1/2″
15
46
17.5
20
3/4″
20
56
20
25
1″
25
65
23
32
1 1/4″
32
74
28
40
1 1/2″
40
...
Product Structure
main parts and materials
Material Name
Cartoon steel
Stainless steel
Forged steel
Body
A216WCB
A351 CF8
A351 CF8M
A 105
Bonnet
A216 WCB
A351 CF8
A351 CF8M
A 105
Ball
A276 304/A276 316
Stem
2CN3 / A276 304 / A276 316
Seat
PTFE、RPTFE
Gland Packing
PTFE/ PTFE / Flexible Graphite
Gland
A216 WCB
A351 CF8
A216 WCB
Bolt
A193-B7
A193-B8M
A193-B7
Nut
A194-2H
A194-8
A194-2H
Main Size And Wei...
Main Parts And Materials
Material Name
Q91141F-(16-640C
Q91141F-(16-64)P
Q91141F-(16-64)R
Body
WCB
ZG1Cr18Ni9Ti
CF8
ZG1Cr18Ni12Mo2Ti
CF8M
Bonnet
WCB
ZG1Cd8Ni9Ti
CF8
ZG1Cr18Ni12Mo2Ti
CF8M
Ball
ICr18Ni9Ti
304
ICr18Ni9Ti
304
1Cr18Ni12Mo2Ti
316
Stem
ICr18Ni9Ti
304
ICr18Ni9Ti
304
1Cr18Ni12Mo2Ti
316
Sealring
Polytetrafluorethylene(PTFE)
Gland Packing
Potytetrafluorethylene(PTFE)
Product Structure
main parts and materials
Material Name
Cartoon steel
Stainless steel
Body
A216WCB
A351 CF8
A351 CF8M
Bonnet
A216WCB
A351 CF8
A351 CF8M
Ball
A276 304/A276 316
Stem
2Cd3 / A276 304 / A276 316
Seat
PTFE、 RPTFE
Gland Packing
PTFE / Flexible Graphite
Gland
A216 WCB
A351 CF8
Bolt
A193-B7
A193-B8M
Nut
A194-2H
A194-8
Main Outer Size
DN
Inch
L
d
D
W
H
20
3/4″
155.7
15.8
19....