Cast Steel Globe Valve
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Cast Steel Globe Valve

Cast Steel Globe Valves are linear motion closing-down valves in which the closure member is moved squarely on and off the seat. Usually the closure member is referred as a disc, irrespective of its shape.

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Product Description

China Cast Steel Globe Valve Manufacturers and Suppliers with the Low Price
1.Introduction of Cast Steel Globe Valve

Cast Steel Globe Valves are linear motion closing-down valves in which the closure member is moved squarely on and off the seat. Usually the closure member is referred as a disc, irrespective of its shape. The seat opening varies in direct proportion to the travel of the disc. This proportional relationship between valve opening and disc travel is ideally suited for duties involving regulation of flow rate. Cast Steel Globe Valves are most suitable for throttling and controlling fluid flow and are generally employed in small size piping.

Cast Steel Globe Valve design necessitates two changes in the direction of flow and this causes resistance in liquid lines and objectionable pressure drop. The installation of Cast Steel Globe Valves is made so that the flow is up through the seat ring and against the bottom of the disc. This prevents accumulation of dirt and debris above the disc.


Cast Steel Globe Valve

2.What are The Cast Steel Globe Valves used for

Cast Steel Globe Valves may be used for most duties encountered in fluid handling process piping systems. Although the Cast Steel Globe Valve can be used as a block or isolation valve, it is primarily designed to regulate flow in the partially open position, while Cast Steel Globe Valves are designed for either the fully opened or fully closed position. When considering Cast Steel Globe Valves for on-off isolation service, design selection should receive careful consideration because maintaining a tight seal against the strong force pushing up on the disc is difficult. The Cast Steel Globe Valve, compared to the gate valve, has a short stem travel between the open and closed positions, has relatively little wear and is easier to repair.

3.Working principle for Cast Steel Globe Valve

A Cast Steel Globe Valve is primarily designed to stop, start and regulate flow. It is comprised of a movable disk and a stationary ring seat in a generally spherical body. The seat of a Cast Steel Globe Valve is in the middle of and parallel to the pipe, and the opening in the seat is closed off with the disk. When the handle is turned, manually or through an actuator, a disc is lowered or raised by means of the valve stem. When the disc is fully lowered, the fluid flow is shut off. When the disc is fully raised, the fluid flow is at its maximum rate. When the disc is in raised to less then maximum level, the fluid flow is regulated with proportion to the vertical travel of the disc.


Cast Steel Globe Valve


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