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[VIP第3年] 指數:4
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Super-H Design
Super-H is the pressure balanced Plug Valve that Serck Audco has developed while leading the market over the last 90 years.With the most typical applications found in natural gas, upstream hydrocarbon and slurries, this well-established design has proven its suitability on a range of demanding applications when zero leakage or bubble tight shut-off and reliability of operationare of primeimport ance.
Basic design advantages such asmeta l-to-meta l seats and a wide seating area, along with competitive pricing, have made plugvalves the product of choice when the valve is operated in a difficult or dirty service and/or needs to be opened against full differential pressure. The robust meta l-to-meta l seats ensure long valve life on any service, even in presence of solid particles in the line media.
Main feartures:
Plug Balancing
All Super-H valves are protected against the possibility of seizure due to taper locking.Taper locking is a phenomenon common to conventional type plug valves, caused by an imbalance of forces acting on the plug due to line pressure finding its way into the chamber at the larger end of the plug.The resultant force tends to push the plug into the taper,potentially jamming it in its tapered bore. The plug can remain locked even when line pressure is subsequently reduced.In an attempt to combat taper locking, conventional plug valves utilise the pressure of the plug sealant,acting on the upper face of the plug, to react against the upwards force. This required frequent sealant injection maintains a smooth valve operation.
Pressure Balancing
Super-H valves incorporate pressure balanced plugs as standard,The passages top and bottom with a check valve at the smaller end of the plug allow the line pressure itself to balance the forces acting on the plug, preventing any possibility of taper locking – thus maintaining troublefree operation without the need for frequent sealant injection.
Protected Pressure Balancing
For increased reliability in service where there is a possibility of foreign particles in the media, we can incorporate as an option, the protected pressure balance system . This design ensures that the balancing holes are not exposed to the line media in the plug port, providing added security compared with normal pressure balancing.
Plug Balancing Spring
This design preloads the plug to prevent taper locking during pressure and/or temperature transients. Available as an option, this also enables total flexibility in piping configuration, regardless of valve orientation.
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Super-H is the pressure balanced Plug Valve that Serck Audco has developed while leading the market over the last 90 years.With the most typical applications found in natural gas, upstream hydrocarbon and slurries, this well-established design has proven its suitability on a range of demanding applications when zero leakage or bubble tight shut-off and reliability of operationare of prime
Basic design advantages such as
Main feartures:
Plug Balancing
All Super-H valves are protected against the possibility of seizure due to taper locking.Taper locking is a phenomenon common to conventional type plug valves, caused by an imbalance of forces acting on the plug due to line pressure finding its way into the chamber at the larger end of the plug.The resultant force tends to push the plug into the taper,potentially jamming it in its tapered bore. The plug can remain locked even when line pressure is subsequently reduced.In an attempt to combat taper locking, conventional plug valves utilise the pressure of the plug sealant,acting on the upper face of the plug, to react against the upwards force. This required frequent sealant injection maintains a smooth valve operation.
Pressure Balancing
Super-H valves incorporate pressure balanced plugs as standard,The passages top and bottom with a check valve at the smaller end of the plug allow the line pressure itself to balance the forces acting on the plug, preventing any possibility of taper locking – thus maintaining troublefree operation without the need for frequent sealant injection.
Protected Pressure Balancing
For increased reliability in service where there is a possibility of foreign particles in the media, we can incorporate as an option, the protected pressure balance system . This design ensures that the balancing holes are not exposed to the line media in the plug port, providing added security compared with normal pressure balancing.
Plug Balancing Spring
This design preloads the plug to prevent taper locking during pressure and/or temperature transients. Available as an option, this also enables total flexibility in piping configuration, regardless of valve orientation.
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