Rising Stem Gate Valves

Rising stem valves may feature static handles or wheels.

Rising stem gate valves.

In rising stem type valves when the gate 8 is raised or lowered the entire stem 9 moves upward or downward through the yoke 1 as the threaded part 10 of the stem 9 threads through the yoke nut 12 on the top of the yoke 1. Ferguson is the 1 us plumbing supply company and a top distributor of hvac parts waterworks supplies and mro products. The wedge angle varies with valve parameters usually 50 and 2 52 when the medium temperature is not high. All valves 14 and larger are cast with.

Shop for gate valves at ferguson. 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. This gives a good visual indication of whether the valve is open or not because the raised stem is clearly visible. Available in sizes 2 through 96 our metal seated solid wedge valves are designed in accordance with awwa c500 standards as well as ansi and astm standards.

Featuring corrosion resistant construction with an aluminum handwheel and 316 stainless steel nonrising stem bonnet body and wedge these gate valves are ideal for refinery chemical and other process applications. Shop a large range of rising stem valve at msc industrial supply. The gate has two sealing surfaces. Solid wedge is the most common widely used disk type because of its simplicity and strength.

Types of stem movement. When opening or closing the gate it is through the rotating of valve stem. 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. A valve with a solid wedge may be installed in any position and it is suitable for almost all fluids.

A rising stem is a type of valve mechanism in which the stem of the valve rises along with the gate disk or globe when opened. The two sealing surfaces of the most commonly used mode gate valve form a wedge. Designed and manufactured for use in wastewater and sewage applications pratt gate valves are produced in both non rising stem nrs and outside screw yoke os y versions. In some systems it is necessary to be able to determine remotely if the valve is open or closed.

For example in a fire. Compared with other valves gate valves have a wider range of combined applications for pressure service fluid design pressure and temperature. The rising stem gate valve can only be fully opened and fully closed and cannot be adjusted or throttled. Rising stem or os y type outside stem and screw type non rising stem type.

Stem nut for open stem gate valve is on its cover. Solid wedge gate valve.