Pressure Sealed Globe Valve
Technical parameters and characteristics：
Product type | ON/OFF |
Product description | Pressure Sealed Globe Valve |
Model | J40H-Pressure Sealed Globe Valve |
Nominal diameter | NPS 2″～24″(DN50～DN600) |
Operating temperature | -29℃～593℃(the range of service temperature may vary for different materials) |
Nominal pressure | CLASS 150～2500（PN 20～PN420） |
Material | Main material: A216 WCB, WCC; A217 WC6, WC9, C5, C12, C12A, CA15; A351 CF8, CF8M, CF3, CF3M, CF8C, CN3MN, CK3MCUN, CN7M; A352 LCB, LCC; A494 CW-6MC, CU5MCuC, M35-1; A890 4A(CD3MN) , 5A(CE3MN), 6A(CD3MWCuN), etc. |
Design standard | ASME B16.34, BS 1873 |
Structural length | ASME B16.10 |
Connecting end | ASME B16.5, ASME B16.25 |
Test standard | API 598, ISO 5208 |
Operation method | non-elevating hand wheel, bevel gear, motor drive unit, pneumatic drive unit |
Application fields | For application in fields such as electric power industry, petroleum, tap water engineering in urban construction, chemical engineering, etc. |
Technical characteristics | 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. |
The friction between sealing faces is smaller during opening and closing, facilitating a longer service life. | |
The valve clack is of taper, needle, ball and parabola types, and can be used to adjust the flow rate. | |
The pressure self-sealing is adopted between valve body and bonnet for reliable sealing, where the higher the pressure is, the better the sealing performance would be. | |
Rising stem structure, making the valve switch position be clear at a glance | |
The valve stem thread will not come into contact with the medium, so the corrosion of medium to the thread is reduced. | |
A certain clearance is provided between valve clack and valve stem. You may adjust it by yourself. The sealing is reliable. | |
The valve clack can be machined into parabola, spherical, needle shapes, etc. according to the requirement of customer. It can be used for adjustment (rough adjustment) on pipeline. | |
Short stroke is suitable for application at positions subject to frequent opening. | |
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. |