Rising Stem Gate Valve Components

Valves are of the rising screw design generally with outside screw.

Rising stem gate valve components.

Knife gate valves are mass produced in sizes from 2 to 24 although valves up to 72 are not uncommon. For a rising stem valve the stem will go up while opening the valve and move down when you close the valve. The gearbox forms a right. Components are easy to replace for quick economical maintenance.

Msc industrial supply is here to support all your metalworking and maintenance repair needs with over 1 million products in stock and ready to ship today. Valve opening and closing is slow unless actuated and water hammer effects should not be a problem. The rising stem gate valve can only be fully opened and fully closed and cannot be adjusted or throttled. Shop a large range of rising stem valve at msc industrial supply.

Rising stem gate valves are used when shutoff is required and a quick visual indicator of open closed position is needed. Every orbit rising stem ball valve incorporates a proven tilt and turn operation that eliminates seal rubbing which is the primary cause of valve failure. The absence of seal rubbing during both opening and closing means easy low torque valve operation and long term reliable performance. Rising telescoping valves are used when gross indication of the valve s position is desired during siphoning or regulating fluid levels.

You can see in the image. Gate valves are available with different disks or wedges. In inside screw design the threaded portion of the stem is in contact with the flow medium and when you open the valve handwheel rise with the stem. When an orbit rising stem ball valve is closed the core is mechanically wedged tightly against the seat ensuring positive shutoff.

Gate valve bronze rising stem threaded t 111. Female threaded ends allow for ease of installation. The bonnet containing the moving parts is attached to the body usually with bolts to permit maintenance. The valve trim consists of the stem the gate the disc or wedge and the seat rings.

Ranging from the gate valves are usually made by the type of wedge used. The nibco bronze gate valve features a screw in bonnet for service where infrequent maintenance is required.