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Lug Type Double Disc Swing Check Valve

Basic Information
Place of Origin: CHINA
Brand Name: coosai
Certification: API6D, ISO 9001
Model Number: H76Y
Minimum Order Quantity: 1SET
Packaging Details: PLYWOOD CASE
Payment Terms: L/C, T/T
Detail Information
Material: Casting,Stainless Steel,Brass Media: Water,Gas,Oil,Base,water Oils Non-corrosive Fluids And Steam
Pressure: Medium Pressure,Low Pressure,High Pressure Structure: Check
Temperature Of Media: Medium Temperature,Normal Temperature,High Temperature Application: General,petroleum,energy Etc.,Water System,water Supply And Drainage
Standard Or Nonstandard: Standard Connection: Flanges Universal Standard,wafer,Flange Ends,female/male/ferrule,Male Thread Tube
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Product Description

Lug Type Double Disc Type Swing Check Valves



       Applicable Standards

  • Design Standard: API 6D, API 594, BS1868, API602
  • Nominal Dimension: Casting Valve: 2”-48”, Forging Valve: 1/4"~2"
  • Nominal Pressure: Class 150-2500
  • Connection type: WAFER, LUG, FLANGE, ETC.
  • Structure: Bolted Bonnet, Welded bonnet, Pressure seal, Double disc, Tilting disc,”Y” pattern,Non Slam design.
  • Material:DI, CS, SS, DSS,LTCS, Inconel ,Monel, Bronze,Aluminum Bronze
  • Operation: Damper and counterweight(optional)

Check valve is usually installed in linesystem, prevent medium from flowing back. Check valve is an automatic valve that itis open and close by pressure of fluid.


Against the problem of traditional check valve, we accord AMERICA API&GERMNEY DIN, after study and research for many years, developed H76 lug body type wafer, double-disc swing type wafer check valve, H74 swing single-plate wafer check valve, H71 lift wafer check valve, and series of those products. Used in the industry of oil, petro, metallurgy, electric, light industry, food, received high appraisal from customers.


Design Standard GB/T12221 API6DAPI594
Pressure-Temperature Rating GB/T12224 ASME B16.34
Face to Face Factory standard API6DAPI594
Flange Ends GB/T9113JB/T79 ASME B16.5, ASME B16. 47
Inspection & Test JB/T9092/GB/T13927 API598/API6D
Test Pressure(MPA) Shell Test CL150 CL300 CL400 CL600 CL900 CL1500

High Pressure

Seal Test

2.93 7.58 10.0 15.0 22.4 37.5

Low Pressure

Seal Test

2.07 5.52 7.31 11.03 16.54 27.5





Lug Type Double Disc Swing Check Valve 0

Lug Type Double Disc Swing Check Valve 1

Lug Type Double Disc Swing Check Valve 2

Lug Type Double Disc Swing Check Valve 3


Lug Type Double Disc Swing Check Valve 4


Contact Details

Phone Number : +8613017861943