Wafer Butterfly Check Valve

Wafer Butterfly Check Valve

Product Details

Wafer Butterfly Check Valve



Model No.: H76H/W  

China Wafer Butterfly Check Valve manufacturer offers Wafer Butterfly Check Valves in CF3M/CF8M/CF8/ZG1Cr18Ni9Ti/WCB, 2-48 Inch, Class 150.


Wafer butterfly check valve has short face to face dimension (only 1/4~1/8 of the conventional flange check valve), small volume, light weight (1/4~1/20 of conventional flange check valve). Wafer butterfly check valve can be used for horizontal pipe lines and vertical pipe lines. The check valve also has the advantages of compact structure, beautiful modeling, long service life and excellent reliability. 
 
Check valve is used for pipeline to avoid refluence of medium. Check valve is an automatic valve that open and close by the medium pressure. In the past, flanged swing check valve and flanged lift check valve are widely used, but those valves have the disadvantages of large volume, fluid resistance, high water hammer pressure, hard installation and short service life. 
For that, based on American API Standards and German DIN Standards, combining with abundant experience on research, design and manufacturing, we develop wafer butterfly check valve wich is welcome in petroleum, metallurgy, power and other industries. 
 
Characteristics:
1. Short face to face dimension(only 1/4~1/8 of conventional flange check valve);
2. Small volume, light weight (1/4~1/20 of conventional flange check valve);
3. The disc closes rapidly,and has small water hammer pressure;
Can be used for horizontal pipe lines and vertical pipe lines. 4. Convenient utilization; 
5. Free channel and small fluid resistance;
6. Excellent sealing;
7. Short stroke of valve disc and small impact force when closing valve;
8. Compact structure, beautiful modeling;
9. Long service life and reliability.

Comparison between Wafer Butterfly Check Valve and Conventional Check Valve 
Structure Wafer butterfly check valveConventional check valve
Water hammer pressureSmall. Valve disc has short stroke. With assistance of spring, it can be closed rapidly.Large. It needs long time to close for its long stroke.
Only 1/2~1/5 
Size & WeightShort face to face dimension, small volume, light weight
convenient for utilization and save cost
Long face to face dimension, large volume and heavy weight
Face to face dimension: only 1/4~1/6 of conventional flange check valve; Weight: 1/4~1/10 of conventional flange check valve
Fluid ResistanceQuite small; fluid drag coefficient: 2.6~0.7
Larger caliber, smaller fluid drag coefficient
Quite small, fluid drag coefficient: 1.3~3. It cannot be opened 
completely with low pressure which caused large fluid resistance. 
Larger size, bigger fluid drag coefficient. 
InstallingCan be installed horizontally or vertically or vertically, without support for light weight.Can be installed horizontally and vertically. 
Support is needed for large size for heavy weight 
Pressure Quite low. The valve can be opened completely under low differential pressure.High. Valve disc only can be opened completely with large differential pressure
Reliability Compact and simple structure
having long service life and excellent reliability, for low impact fore and water hammer pressure when closing valve.
High impact fore and water hammer pressure cause damage to valve easily.

Components Materials

Nominal PressurePN1.0MPa, PN1.6MPa, PN2.5MPa, PN4.0MPa, PN6.4MPa, PN10.0MPa

Model No.H76H-CH76W-PH76W-P8H76W-P3H76W-RH76W-R8H76W-R3
Components MaterialsValve BodyWCB(A105)ZG1Cr18Ni9TiCF8(304)CF8(304L)ZG1Cr18Ni12Mo2TiCF8M(316)CF3M(316L)
Valve DiscCF8CF8CF8CF3CF8MCF8MCF3M
Valve Stem2Cr131Cr18Ni9Ti0Cr18Ni900Cr19Ni101Cr18Ni12Mo2Ti0Cr17Ni12Mo200Cr17Ni14Mo2
Spring0Cr18Ni90Cr18Ni90Cr18Ni900Cr19Ni100Cr17Ni12Mo20Cr17Ni12Mo200Cr17Ni14Mo2
Application ConditionsApplicable MediumWater, vapour and oil, etc.Nitric acidStrong oxidizing mediumAcetic acidCarbamide and other corrosive medium
Applicable Temperature(℃)-29~425-196~540-196~425-196~540-196~455

Dimensions
Pressure SizeDimensions(mm)Weights(kg)Companion Flange(only for consulting)
NPSDNLDD 3D 2Bolt Hole Diameter D 1Bolt NumbersBolt 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-
30


We company have other valves: gate valve, check valve, ball valve, butterfly valve, safety valve, globe valve, plug valve, etc....


Welcome to inquiry! our valves


XIAMEN KEMUS VALVE CO.,LTD.

Website : https://www.kemus-valve.com

webwxgetmsgimg (1)



                                                                                                                                                              


Inquiry

You Might Also Like