Casting Gate Valves
Product Description
Product description |
Wedge gate valve |
Model |
Z40H-gate valve |
Nominal diameter |
2”~60”(50mm~1500mm) |
Operating temperature |
-196℃~593℃(the range of service temperature may vary for different materials) |
Operating pressure |
150-2500 CLASS |
Material |
Main material: A216 WCB、WCC; A217 WC6、WC9; A351 CF8、CF8M、CF3、CF3M、CF8C; A352 LCB、LCC;、Duplex,Super Duplex; ASME B 148 C95800、C95500, etc. |
Design standard |
API 600、ASME B16.34、GB 12234、GB 12224 |
Structural length |
ASME B16.10 |
Connecting end |
ASME B16.5、ASME B16.25 |
Test standard |
JB/T9092、GB/T13927、API 598、ISO 5208 |
Operation method |
,Motorized actuator, pneumatic actuator ,handwheel,gearbox, Motorized actuator, |
Application fields |
For application in fields such as electric power industry, petroleum refining, petrochemical engineering, offshore oil, tap water engineering in urban construction, chemical engineering, etc. |
Other remarks 1 |
Through improving the structural design and selecting reasonable packing structure and qualified packing supplier, the valves can meet the Class A sealing test requirements of ISO 15848 FE. |
Other remarks 2 |
The gate valve is of wedge and resilient type that can compensate the slight deformation, so the sealing performance is good. |
Other remarks 3 |
Rising stem structure, making the valve switch position be clear at a glance |
Other remarks 4 |
The valve stem thread will not come into contact with the medium, so the corrosion of medium to the thread is reduced. |
Other remarks 5 |
Small switching moment, reliable sealing |
Other remarks 6 |
SS+ graphite or metallic seal or pressure self-sealing is adopted between valve body and bonnet for reliable sealing |
Other remarks 7 |
Small flow resistance, high flow capacity and good flow characteristics |
Other remarks 8 |
For small gate valves, the interchangeability can be ensured with process tooling. |
Other remarks 9 |
The sealing faces of valve seat and valve clack are build-up welded with hard alloy to improve the erosion resistance and extend the service life of valve. |
Design of Disc
Gate valves with NPS>=2 are flexible gate,gate valves with with NPS<2 are of solid gate.
If being requested by the customer,the Belleville spring loaded packing impacting system can be adopted for enhancing the durability and reliability of the packing seal.