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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DIN Clamp 50.5-64 Check Valve DN40-DN50
A check valve, clack valve, non-return valve or one-way valve is a valve that normally allows fluid (liquid or gas) to flow through it in only one direction.
Check valves are two-port valves, meaning they have two openings in the body, one for fluid to enter and the other for fluid to leave. There are various types of check valves used in a wide variety of applications. Check valves are often part of common household items. Although they are available in a wide range of sizes and costs, check valves generally are very small, simple, or inexpensive. Check valves work automatically and most are not controlled by a person or any external control; accordingly, most do not have any valve handle or stem. The bodies (external shells) of most check valves are made of plastic or metal.
An important concept in check valves is the cracking pressure which is the minimum upstream pressure at which the valve will operate. Typically the check valve is designed for and can therefore be specified for a specific cracking pressure.
| 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.
