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Coupling double flap swing check valve

Products > Check valve > Coupling double flap swing check valve

Coupling double flap swing check valve

Product Type: H76H / W
Nominal Diameter: NPS 2 "~ 60", DN50 ~ 1500mm
Pressure Range: Class150 ~ 600Lb, PN10 ~ 100MPa
Working Temperature: -29 ℃ ~ +425 ℃
Main Body Material: Carbon Steel, Stainless Steel, Alloy Steel
Design standard: API6D, JB / T8937, API594
Structure length: API594, JB / T8937
Connection standard: ASME B16.5, GB / T 9113, JB / T79, HG / T 20592
Pressure test: API 598, GB / T 13927 , JB / T 9092
Pressure - Temperature class: ASME B16.34, GB / T12224
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Features

1, the product structure of short length, small size, light weight.

2, the sealing flap can be selected according to different working conditions, soft sealing or hard sealing material, good sealing performance.

3, horizontal or vertical pipe can be used, easy to install.

4, the valve closed quickly, water hammer pressure is small.

5, the material of parts and the valve end face form, size according to the actual conditions or user requirements reasonable matching, to meet the needs of various projects.


 The main dimensions

PNcaliberSize (mm)Weight (kg)

Piping flange (for reference)

NPSDNLDD 3D 2Bolt hole 
center circle diameter D 1
Number of boltsBolt diameter dBolt length L 1
inmmRFRJ
Class 150 
PN2.0MPa
2506010356512120.545/8M16140155
2 1/2656712273653139.545/8M16150165
3807313588804152.545/8M16160175
4100731731081026190.585/8M16170185
5125861951321278216.083/4M20190205
61509822016015213241.583/4M20205220
820012727721020325298.583/4M20240255
1025014633726625439362.0127/8M24270285
1230018140731030554432.0127/8M24310325
1435018444835535080476.0121M27325340
16400191512405400117540.0161M27340355
18450203547455450138578.0161 1/8M30365380
20500219604505500163635.0201 1/8M30385400
24600222715605600331749.5201 1/4M33405420
28700305773700700380795.5403/4M20455-
30750305824750746425846.0443/4M20455-
32800305878800796560900.0483/4M20460-
369003689839108986401009.5447/8M24540-
4210504321142105510509601171.5481M27625-
48120052413021205120014001335.0441 1/8M30740-
Class 300 
PN5.0MPa
2506011058513127.085/8M16155175
2 1/2656712873654149.083/4M20175195
3807314788806168.583/4M20190210
4100731791081028200.083/4M20195215
51258621413212715235.083/4M20215235
61509824916015218270.0123/4M20230250
820012730521020331330.0127/8M24280300
1025014635926625451387.5161M27315335
1230018142031030577451.0161 1/8M30365385
14350222483355350117514.5201 1/8M30410430
16400232537405400190571.5201 1/4M33435455
18450264594455450200628.5241 1/4M33475535
20500292652505500265686.0241 1/4M33510585
24600318772608600410813.0241 1/2M39560-
30750368882740735660921.0361 3/8M36650-
36900483104488087310201089.0321 5/8M42800-
42105056811961045103515401244.5361 3/4M45920-
48120062913651190117922601416.0401 7/8M481010-