Gate valves are useful for fully open and fully closed service functions. Ideal for installation in pipelines as isolation components, the valve opens when lifting a gate out of the pathway of the fluid and closes when the gate returns to its position.
Compact in design, gate valves require little space along the pipe axis and don’t restrict the flow when the gate is opened fully. They are also known as multi-turn valves and operate either clockwise to close or clockwise to open the rotating motion of the threaded stem.
Types of Gate Valves
Gate valves have different kinds of characteristics that are useful for various applications, but the two main types are parallel and wedge-shaped.
Parallel Gate Valves
Compact in its structure, with reliable closing and sealing performance, a parallel gate valve uses a flat gate between two parallel seats. Mainly used in the chemical, petroleum and natural gas field, it’s the ideal valve to provide isolation when closed.
Wedge-shaped Gate Valves
Wedge-shaped gate valves feature a disc that is in the shape of a wedge that seats between two inclined seats. Used in high flow or aggressive applications, it minimizes the vibration and chatter of the valve.
Rising Stem & Non-rising Stem Gate Valves
Made from a range of materials, their characterization can be seen by their rising or non-rising stem. A rising stem gate valve is only useful for above-ground installation. The stem fixes to the gate, and as it rises and lowers during operation, it indicates the valve position and the possibility to grease the stem. Suitable for both above-ground and underground installations, non-rising stems are embedded onto the gate, rotating with the wedge rising and lowering inside the valve. It’s ideal for a valve with limited space as they are more compact in design.
Gate valves are useful for fully open and fully closed service functions. Ideal for installation in pipelines as isolation components, the valve opens when lifting a gate out of the pathway of the fluid and closes when the gate returns to its position.
Compact in design, gate valves require little space along the pipe axis and don’t restrict the flow when the gate is opened fully. They are also known as multi-turn valves and operate either clockwise to close or clockwise to open the rotating motion of the threaded stem.
Types of Gate Valves
Gate valves have different kinds of characteristics that are useful for various applications, but the two main types are parallel and wedge-shaped.
Parallel Gate Valves
Compact in its structure, with reliable closing and sealing performance, a parallel gate valve uses a flat gate between two parallel seats. Mainly used in the chemical, petroleum and natural gas field, it’s the ideal valve to provide isolation when closed.
Wedge-shaped Gate Valves
Wedge-shaped gate valves feature a disc that is in the shape of a wedge that seats between two inclined seats. Used in high flow or aggressive applications, it minimizes the vibration and chatter of the valve.
Rising Stem & Non-rising Stem Gate Valves
Made from a range of materials, their characterization can be seen by their rising or non-rising stem. A rising stem gate valve is only useful for above-ground installation. The stem fixes to the gate, and as it rises and lowers during operation, it indicates the valve position and the possibility to grease the stem. Suitable for both above-ground and underground installations, non-rising stems are embedded onto the gate, rotating with the wedge rising and lowering inside the valve. It’s ideal for a valve with limited space as they are more compact in design.
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