LIFT CHECK VALVE H41H
LIFT CHECK VALVE H41H
Model
DN15-DN200

Product review

Description

Lifting check valve refers to the valve that automatically opens and closes the disc depending on the flow of the medium itself to prevent medium backflow, also known as check valve, one-way valve, counterflow valve, and back pressure valve. Check valve is an automatic valve. Its main function is to prevent medium backflow, reverse pump and drive motor, and release of container medium. Check valves can also be used in pipelines to supply auxiliary systems where pressure may rise above system pressure. Check valves can be divided into swing check valves (rotating according to the center of gravity) and lift check valves (moving along the axis).升降式止回阀

Technical data

PN(MPa)Nominal pressure1.62.54.0
(MPa)Test pressureShell strength test2.43.756.0
Seal test (Liquid)1.762.754.4
Seal test (Gas)0.5~0.7
Suitable mediumwater,steam,oilPNiter acidsRoil
Suitable temperature ≤425≤100 ≤550

Meterial of main parts

No.

Part name

Meterial

ASTM

GB

1

Valve body

WCB, WC1,WC6,WC9,C5 CF8,CF8M,CF8C,CF3,CF3M

WCB,WC1,WC6,WC9,C5 CF8,CF8M,CF8C,CF3,CF3M

2

Valve disc

WCB,WC1,WC6,WC9,C5 CF8,CF8M,CF8C,CF3,CF3M

WCB,WC1,WC6,WC9,C5 CF8,CF8M,CF8C,CF3,CF3M

3

Stud bolts

A193-B7,A320-B8,A193-B8M

35CrMoA,25Cr2MoV,0CM8Ni9,0Cr17Ni12Mo2

4

Hex nuts

A194-2H,A194-8,A194-8M

45,35CrMoA,25Cr2MoV, 0Cr18Ni9,0Cr17Ni12Mo2

5

Gasket

Flexible graphite + stainless steel

Flexible graphite + stainless steel

6

valve bonnet

A105,F11,F22,F5,F9 F304, F316, F321, F304L, F316L

25,1Cr18Ni9Ni,0Cr18Ni12Mo2Ti 20Cr1Mo1V,25Cr2MoV

 

Main dimensions

PN(MPa)DN(mm)LHDD1D2D6bff2Z-ød
1.61513077956545-142-4-14
20150771057555-142-4-14
25160801158565-162-4-14
321808513510078-162-4-18
402009514511085-163-4-18
50230105160125100-163-4-18
65290120180145120-183-4-18
80310130195160135-203-8-18
100350140215180155-203-8-18
125400155245210185-223-8-18
150480180280240210-243-8-23
200600245335295265-263-12-23
 2.5 15130100956545 - 16 2 - 4-14
 201501051057555 - 16 2 - 4-14
 251601201158565 - 16 2 - 4-14
 3218013013510078 - 18 2 -4-18
 4020013514511085 - 18 3 - 4-18
 50230149160125100-203-4-18
 80310169195160135-223-8-18
100350194230190160-243-8-23
150480255300250218-303-8-25
200600305360310278-343-12-25
 4.015 130 1009565454016244-14
2015010510575555116244-14
2516012011585655816244-14
32180130135100786618244-18
40200135145110857618344-18
502301491601251008820344-18
8031016919516013512122348-18
1003501942301901601502434.58-23
1504802553002502182043034.58-25
2006003053753202822603834.512-30