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Wafer Dual Plate Lug Type

Wafer Dual Plate Lug Type

Product Details



Check Valve is applicable for various pipelines with nominal pressure of PN1.0MPa~42.0 MPa,Class150~2500 and nominal diameter of DN15~1200mm,NPS1/2-48 and working temperature of -196~540 to be used for protecting from medium back flowing. The different materials selection can apply to the medium involving water, steam, oils, nitric acid, strong oxidizing medium and urea etc.


1. Design Standard: 
API 594 、API 6D 、API 6A

2. Flange Standard:  
ASME B16.5、ASME B16.47、API 605、API 6A
3. Test Standard:  
 API 598

4. Pressure Rating and Size: 
Class150  11/2”-80”(40-2000mm)、Class300  11/2”-60”(40-1500mm)、Class600  11/2”-48”(40-1200mm)、Class900  2”-48”(50-1200mm)、Class1500  2”-24”(50-600mm)、Class2500  2”-16”(50-400mm)、3000PSI  21/16-203/4”、 5000PSI  21/16-203/4”、 10000PSI  21/16-11”
5.Material Standard: 
ASTM A216 WCB/WCC、ASTM A105、ASTM A352 LCC/LCB 、ASTM 217 CA15、 WC6、WC9 、C5、C12、ASTM A351 CF8M、CF8、CF3M、CF3、CF8C、CN7M、F304、F316L、F304L、F321、F51、F53、F55、F6a、ASTM A494  CW6MC 、M35、ASTM B148 C95500、C95800、UNS S31254、UNS N26625、Hastelloy、Ti


Manufacture Standard

Face to   Face

Flange   Drilling

Pressure-Temperature Class

Test   Standard

API594, JB/T8937

API594,  API6D JB/T8937

JB/T74-90, GB/T13402,  HG/T20592-20635, SH3406, ANSI B16.5, API604, ASME B 16.47, DIN2543-2548

JB/T74, GB/T9124, HG20604-20625, ASME B16.34, DIN2401,SH3406


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