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...
main parts and materials
Body
Valve Plate
Valve Shaft
Lining
Ductile Iron
Ductile Iron
Stainless Steel 420
EPDM
Cast Steel
Stainless Steel304/316/316L
Stainless Steel 316
NBR
Stainless Steel
Aluminium Bronze
Stainless Steel 316 L
PTFE
Dual Phase Steel
Else
Else
VITON Else
Else
Else
Main Outer Size
Inch
DN
φA
φB
D
E
F
1
Note
...
Design standards
• Design and manufacturing specifications: API6D/BS 5351/ISO 17292/GB 12237
• Structure length: API6D/ANSIB16.10/GB 12221
• Test and Inspection: API6D/API 598/GB 26480/GB 13927/ISO 5208
Performance Specification
• Nominal pressure: (1.6-10.0)Mpa,(150-1500)LB,10K/20K
• Strength test:PT1.5PNMpa
• Seal Test: PT1.1PNMpa
• Gas seal test: 0.6Mpa
Product Structure
ISO Law Mount Pad ...
Product Structure
main parts and materials
Material Name
Q11F-(16-64)C
Q11F-(16-64)P
Q11F-(16-64)R
Body
WCB
ZG1Cr18Ni9Ti
CF8
ZG1Cd8Nr12Mo2Ti
CF8M
Bonnet
WCB
ZG1Cr18Ni9Ti
CF8
ZG1Cr18Ni12Mo2Ti
CF8M
Ball
ICr18Ni9Ti
304
ICr18Ni9Ti
304
1Cr18Ni12Mo2Ti
316
Stem
ICr18Ni9Ti
304
ICr18Ni9Ti
304
1Cr18Ni12Mo2Ti
316
Sealring
Polytetrafluorethylene(PTFE)
Gland Packing
Polytetrafluorethylene(PTFE)
Main Size And Weight
DN
Inch
L
L1...
Product Structure
main parts and materials
Material Name
Z15H-(16-64)C
Z15W-(16-64)P
Z15W-(16-64)R
Body
WCB
ZG1Cr18Ni9Ti
CF8
ZG1Cr18Ni12Mo2Ti
CF8M
Disc
WCB
ZG1Cr18Ni9Ti
CF8
ZG1Cr18Ni12Mo2Ti
CF8M
Stem
ICr18Ni9Ti
304
ICr18Ni9Ti
304
1Cr18Ni12Mo2Ti
316
Sealring
304, 316
Packing
Polytetrafluorethylene(PTFE)
Main Outer Size
DN
G
L
E
B
H
W
15
1 1/2″
55
16
31
90
70
20
3/4″
60
18
38
98
...