Active Member
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[China]
Address: No.1675, Fengxiang Road, Baoshan City Industrial Zone, Baoshan District, Shanghai, China
Contact name:Olivia
Kata Valve (Group) Co., Ltd. |
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High temperature resistant Steel material Pressure Seal Swing Check Valve NPS2"-36" Class 900-2500LB
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.
| Parts Name | Materials | ||||
| WCB/TRIM 1 | WCB/TRIM 5 | WCB/TRIM 8 | CF8/304 | CF8M/316 | |
| body | ASTM A216 WCB | ASTM A216 WCB | ASTM A216 WCB | ASTM A351 CF8 | ASTM A351 CF8M |
| seat ring | A105 +12Cr | A105 +STL | A105 +STL | ASTM A182 304 | ASTM A182 316 |
| disc | ASTM A216 +13Cr | ASTM A216 +STL | ASTM A216 +13Cr | ASTM A351 CF8 | ASTM A351 CF8M |
| racker | ASTM A216 WCB | ASTM A216 WCB | ASTM A216 WCB | ASTM A351 CF8 | ASTM A351 CF8M |
| nut | ASTM A194 2H | ASTM A194 2H | ASTM A194 2H | ASTM A194 8 | ASTM A194 8 |
| arm pin | ASTM A182F6a | ASTM A182F6a | ASTM A182F6a | ASTM A182F304 | ASTM A182F316 |
| yoke | ASTM A216 WCB | ASTM A216 WCB | ASTM A216 WCB | ASTM A351 CF8 | ASTM A351 CF8M |
| bonnet nut | ASTM A194 2H | ASTM A194 2H | ASTM A194 2H | ASTM A194 8 | ASTM A194 8 |
| bonnet bolt | ASTM A193B7 | ASTM A193B7 | ASTM A193B7 | ASTM A193B8 | ASTM A193B8M |
| gasket | 304 graphite | 304 graphite | 304 graphite | 304 graphite | 304 graphite |
| bonnet | ASTM A216 WCB | ASTM A216 WCB | ASTM A216 WCB | ASTM A351 CF8 | ASTM A351 CF8M |
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
Our major products
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.
