The Y-type stop valve is the most widely used valve. The reason why it is so popular is that the friction between the sealing surfaces during the opening and closing process is small, it is relatively durable, the opening height is not large, it is easy to manufacture, and it is easy to maintain. It is not only suitable for Suitable for medium and low pressure, and suitable for high pressure. Its closing principle is to rely on the valve rod pressure to make the valve disc sealing surface and the valve seat sealing surface closely fit to prevent the flow of media. The stop valve only allows the medium to flow in one direction and is directional when installed. The structural length of the stop valve is larger than that of the gate valve. At the same time, the fluid resistance is large, and the sealing reliability is not strong during long-term operation.
Check Valves Specifications
|
Size Range |
Body Material |
|
1/2"-48" DN15-DN400 |
A105, A105+HF, LF2, F11+HF, F304 (L), F316 (L), F51 |
|
Pressure Rating |
Disc Material |
|
Class150-Class4500 PN16-PN420 |
F6a, F304 (L), F316 (L), F5a, F6aHF |
|
End Connection |
Seat Material |
|
BSP, NPT, Flange, BW |
A105+F6a, A105+STL6, 304, 316, Hastelloy, Monel, etc. |
|
Structure Style |
Stem Material |
|
Full Port, OS&Y, Bolted Bonnet / Pressure Seal Bonnet Solid Wedge |
410, 304 (L), 316 (L), F51 |
|
Actuator Options |
Design Standard |
|
Handwheel, Bevel Gear, Pneumatic, Electric |
BS5352, MMS SP -118 |
|
Temperature Range |
Face to Face Standard |
|
-29℃~650℃ |
ASME B16.10 , GB/T 12221, GB/T 15188.1 |
|
Connection Standard |
Test Standard |
|
Flange Drilling: ASME B16.5, JB/T 79 Butt Weld: ASME B16.25, GB/T 12224 |
API 598, JB/T 9092, GB/T 13927 |
Y Type Check Valve
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