Obaid Masood – Building Materials Trading (L.L.C.)


Butterfly valves

Butterfly valves
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Parts of Butterfly valves

Major parts of butterfly valves are:

  • Valve body

The valve body attaches between the pipe flanges, with flanged, double lug, and wafer end connections being the most common.

  • Disc

The disc is attached to the valve body and acts as a gate to stop or throttle fluid flow; it is similar to a gate in a gate valve or a ball in a ball valve. The stem, also known as the shaft, is often drilled into the disc. Disc design, orientation, and material can all be altered to increase flow, sealing, and/or operating torque. 

  • Seat

The valve disc seals against a seat on the diameter’s inside peripheral of the valve body, thereby stopping the flow. The disc seals against an elastomeric seat in many Butterfly valves. Other Butterfly valves use a clamp-ring and backing ring on a serrated-edged rubber ring as a seal ring arrangement. This design avoids the O-rings from being extruded.

  • Stem

The valve shaft, also known as

The stem links the disc to the actuation mechanism and transmits torque through itself.

  • Seals

Seals are used at several points within the valve to ensure a hermetic fit during operation or to segregate the process media from the valve’s internal components for a more adaptable and cost-effective design.

Butterfly valves can be utilized for a variety of fluid functions, including slurry applications. Butterfly valves are often used in the applications listed below.

  • services such as slurry and others 
  • cooling water, air, gasses, and fire protection, among other things

Vacuuming services


Butterfly valves

Butterfly valves have several advantages.

  • The small design takes up less room than other valves
  • The weight is less 
  • There are larger sizes available
  • A low-pressure dip accompanied by a recovery to high-pressure

Obaid Masood group recommends using butterfly valves due to their simple construction and compact size, which act as primary advantages over other valve families. It results in end products with lighter weights, lower costs, smaller installation footprints, and faster actuation speeds.

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