Rising Stem Gate Valves

Rising stem or os y type outside stem and screw type non rising stem type.

Rising stem gate valves.

Ferguson is the 1 us plumbing supply company and a top distributor of hvac parts waterworks supplies and mro products. Shop a large range of rising stem valve at msc industrial supply. In some systems it is necessary to be able to determine remotely if the valve is open or closed. Non rising stem gate valve.

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. 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. The two sealing surfaces of the most commonly used mode gate valve form a wedge.

Solid wedge is the most common widely used disk type because of its simplicity and strength. Shop for gate valves at ferguson. Types of stem movement. 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.

The advantage of this construction is that the height of gate valve remains the same so the installation requires small room and is suitable for big gate valves or. For example in a fire. Stem nut for open stem gate valve is on its cover. This gives a good visual indication of whether the valve is open or not because the raised stem is clearly visible.

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. Solid wedge gate valve. 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. 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.

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. The wedge angle varies with valve parameters usually 50 and 2 52 when the medium temperature is not high. When opening or closing the gate it is through the rotating of valve stem. The stem nut is inside valve body and contact with the medium directly.

The gate has two sealing surfaces. 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.