Zero Leakage/Null Leakage Metal Seat Swing Check Valve
Description
A Check Valve is not bi-direction valve, it allows fluid to flow through valve port only one direction. One valve port for fluid to enter and the other for fluid to leave, valve disc will prevent flow back. Check vale are automatial operated and shall not controlled by person, that's save time and cost.
Swing Check Valve Flange End
1. Zero Leakage
2. Metal Seat
3. Swing Check Valve
4. Bolted Cover
Null leakage swing check valve is for petrochemical, gas, water and desalination,energy and divisions.
Features:
Size: DN50---DN600
PN16, PN25, PN63, PN100, PN160
Ends: RF, FF, SW, BW, NPT, RTJ
Material: WCB, LCB, CF8 and so on
Further testing is available on custmor request such as: radiography testing and Non-destluctive Testing.
Design and Manufacturing Standards:
Design and manufacturing as per GB/12236
Face to Face Dimension as per GB/12221
Flange dimension as per Gost 12815
Inspection and Test as per 13927-92, API 598
We can offering null leakage/zero leakage for swing check valve by hydraulic test according to API 598
GOST Standard swing check valve we offered are industry high quality.
Check Valve Parts:
-
Valve Body
-
Valve Disc
-
Hinge
-
Pin
-
Yoke
-
Gasket
-
Bonnet
-
Bolt&Nut
Material List of Check Valve
|
Part Name |
Carbon Steel |
Alloy Steel |
Stainless Steel | ||||||
| Body |
A216 WCB |
A352 LCB |
A217 WC6 |
A217 WC9 |
A217 C5 |
AA351 CF8 |
A351 CF8M |
A351 CF3M |
CD4MCU |
| Bonnet |
A216
WCB |
A352 LCB |
A217 WC6 |
A217 WC9 |
A217 C5 |
AA351 CF8 |
A351 CF8M |
A351 CF3M |
CD4MCU |
| Hinge |
A216
WCB |
A352 LCB |
A217 WC6 |
A217 WC9 |
A217 C5 |
AA351 CF8 |
A351 CF8M |
A351 CF3M |
CD4MCU |
| Pin |
A276 410 |
A276 410 |
A276 410 |
A276 410 |
A276 410 |
A276 304 |
A276 316 |
A276 316L |
F51 |
|
Bols & Nuts |
B7/2H | L7/7 | B16/4 | B16/4 | B8/8 | B8/8 | B8/8 | B8/8 | B8/8 |
Application:
1. These products are mainly used for pipeline flow, pressure and temperature control of various industrial automation producting such as metallurgy, environmental protection, energy management, fir-fighting systems.
2. Simultaneously they have good fluid control properties, simply installation and maintainance .
3. They are not only widely used in general industries as petroleum, coal gas, chemical engineering, water treatment, but also used in the cooling water system of thermal power plant.
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