3' Material ASTM A216 Gr WCB Check Valve with API 6D Flange ANSI B 16.5

3' Material ASTM A216 Gr WCB Check Valve API 6D Flange ANSI B 16.5

 Body and Bonnet Connection 

The body and bonnet of class 150-900 check valve are usually wit studs and nuts.And the body and bonnet of class 1500-class 2500 check valves are usually of pressurized seal.

Body-to-bonnet Joint

Stainless steel flexible graphite wounded gasket is used for class 150 and class 300 check valve;Stainless steel flexible is graphite woulded gasket is used for class 600 check valve,and joint gasket is also optional for class 600 check valve;Ring joint gasket is used for Class 900 check valve;Pressurized seal design is used for Class 1500- 2500 check Valves.

Quality assurance system
1.Sclerometer
2.Universeal material testing machine
3.High speed analyzer
4.Chemical test
5.Electric analysis scales
6.Nde mt (magnetic powder) inspection

NDE UT (ultasonic) inspection
NDE PT (penetrate) inspecion
PMI spectrum analysis
Hydraulic pressure test
Cryogenic ball valve test
Fire-safe test

Certification

• API-6D
• API-Q1
• API2014
• ISO 9001-2008
• ISO-TS-29001
• CE-PED
• API 607 Fire safe certificate
• API 6FA Fire safe certificate
• China national petroleum corporation approved vendor
• Shanghai high enterprise certificate

Our major products

1. Gate valve series
2. Ball valve series
3. Globe valve series
4. Check valve series
5. Butterfly valve series
6. Other valve series

Exporting is the dominant operation at Kaitai.In the process of KATA brand promotion and building up our distribution channels over the years and now has many satisfied and loyal customers.KATA is well recognized and its products are widely used in the oil and gas industry,power plant,boiler,metallurgy,pressure vessel,water supply and drainage and etc.