According to the screw position of the stem the gate valve can be divided into rising stem gate valves and non rising stem gate valve nrs.
Rising stem gate valve diagram.
The external valve stem threads prevent contamination from flow media.
Solid wedge is the most common widely used disk type because of its simplicity and strength.
A gate valve also known as a sluice valve is a valve that opens by lifting a barrier gate out of the path of the fluid gate valves require very little space along the pipe axis and hardly restrict the flow of fluid when the gate is fully opened.
Solid wedge gate valve.
Orbit rising stem ball valve.
Non rising 212 rising 165 brand apollo 10 asahi 8 grainger approved 49.
Rising stem or os y type outside stem and screw type non rising stem type.
Types of stem movement.
The solid wedge integral seats and bi directional service make the gate valve a good choice for a broad range of services.
Designed for quick shutoff in.
A gate valve may have a rising stem in this case the stem rises above the handwheel if the valve is opened or a non rising stem the stem doesn t move above the valve when it is opened.
Rising stem gate valves are used when shutoff is required and a quick visual indicator of open closed position is needed.
It is very frequent to see the term os y associated with gate valves.
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.
For the nonrising stem gate valve the stem is threaded on the lower end into the gate.
Female threaded ends allow for ease of installation.
Steam water and general service applications.
When it comes to gate valves grainger s got your back.
Stem nut for open stem gate valve is on its cover.
The largest stocking distributor of orbit valves.
As the hand wheel on the stem is rotated the gate travels up or down the stem on the threads while the stem remains vertically stationary.
Gate valves are classified as either rising stem or nonrising stem valves.
Compared with other valves gate valves have a wider range of combined applications for pressure service fluid design pressure and temperature.
The cameron orbit rising stem ball valve is ideal for applications when zero leakage and frequent operation are demanded.
The gate faces can be parallel but are most commonly wedge shaped in order to be able to apply pressure on the sealing surface.