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Butterfly valves

Butterfly valves

Obaid Masood Building Materials Trading L.L.C. is a top supplier, wholesale and authorized distributor of Pegler and PEX valves in Dubai, United Arab Emirates. We provide building contractors, mechanical, electrical, and plumbing industries around the nation with a multitude of valves.

Butterfly valves are quarter-turn rotational motion valves that are typically used to halt, regulate, or start flow. Butterfly valves are widely used in the industry due to their small size, quick functioning, and inexpensive cost. Handles, gears, or automatic actuators are used to operate these valves, depending on the application.

Working on butterfly valves

The fluid flow is controlled by the rotation of the valve disc. The disc stops the valve hole in the closed position, while in the open position, it is angled perpendicular to the flow direction to enable the flow. Butterfly valves are typically used for bi-directional flow and cutoff. The body is made of ductile iron with an epoxy powder finish on both the inside and outside. Handwheels, gears, actuators, or a combination of these, are commonly used to operate valves, depending on the purpose and technical parameters.

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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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