Top entry electronic ball valves are widely used in oil and gas pipelines, and oil extraction, refining, petrochemical, chemical, metallurgy, electricity, nuclear power, food and paper and other devices.Top entry ball valve is easy and simple dis-assembly, convenient for maintenance .
When the electric ball valves need to be repaired, there is no need to disassemble the valve from the pipeline , only to tear down the top flange bolts and nuts , remove the bonnet and stem out of the valve together.Then you can repair the seat and ball online , it saves more time and money .
Design & Manufacture according to : API 602
Face to Face according to : ASME B16.10
Flange Dimensions according to : ASME B16.5
Pressure & Temperature according to : ASME B16.34
Test & Inspection according to : API 6D / API 598
Visual Inspection according to : MSS SP-55
Marking according to : MSS SP-25
Cast steel top entry 4 ball valve
Reduce Bore,Full Bore
Petroleum,Chemical Industry,Natural Gas,Oil, Refinery
The body adopts the integral structure, so as to ensure that it has enough strength and rigidity under the maximum rated working pressure. The valve trims have been carefully designed and selected to ensure reliability under various service conditions. The sufficient wall thickness and the connection bolts of high strength are very helpful to the maintenance and servicing of valves and are able to endure pipeline stress.
2. Top Entry Structure
The ss valve adopts the top entry structure. The most distinctive difference between this kind of valve and others is that the online maintenance function can be realized without the need of removing the valve from the pipeline. The seat adopts the concession type seat structure, and the rear end of the seat retainer is set as oblique angle to prevent impurities accumulated on the seat from influencing the concession of seat.