|Design standard:||API 6D|
|Length of structure:||API 6D|
|Flange connecting end:||ASME B16.5/ASME B16.47|
|Butt welding connecting end:||ASME B16.25|
|Wall thickness:||ASME B16.34|
|Inspection and test:||API 6D / API 598|
|Pressure and temperature rating:||ASME B16.34|
|Product scope:||NPS 2″~NPS 36″,CL150~CL900|
|Main body material:||WCB, LCB, WCC, WC6, WC9, CF8, CF8M, CF3, CF3M, A890 4A etc.|
|Drive device:||Handle, Bevel gear, Electric, pneumatic, etc.|
Expanding Gate Valve
ZAF Expanding Gate valves are manufactured and tested in accordance with API-6D.
This type of valve is suitable for onshore and offshore applications where suspended and abrasive solids are present in the fluid or for oil and gas transportation and isolation service.
The double block and bleed design offers a proper seal in between both seats and the gate in both high and low pressure, for this reason line pressure is not needed to seal the valve. The principle of operation is based in two segmented members of a disc which at open or closed position is capable to seal in both directions