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Types of Butterfly Valve Construction

Powell Valves is a proud manufacturer and supplier of butterfly valves, from high-performance butterfly valves to resilient seated butterfly valves


Wafer Type Butterfly Valve: fits between flanges 

Lug Wafer Design Butterfly Valve: held between flanges by bolts and pass through the valve's casing


Advantages of Butterfly Valves

Powell Valves is a trusted manufacturer for high-end butterfly valves. We offer durable valves whose versatility makes them ideal for a full range of applications. Some of the advantages of butterfly valves include:

  • Compact design saves space
  • Light in weight
  • Cost-Effective
  • Quick Operation
  • Doesn't trap fluids
  • Qualified for both gaseous and liquid service
  • Low Maintenance costs from minimal moving parts
  • Positive shut-off bi-directionally
  • Phenolic backed cartridge seat
  • PTFE Bushing Standard
  • Locking handle standard (2"-12")
  • End of line service on lug style standard
  • Ease of automation


Typical Applications of Butterfly Valves



Butterfly Valve Industries

  • Water supply
  • Wastewater Treatment
  • Gas Supply
  • Fire Protection


Actuator Flange: Accommodates all types of actuators, handles, gear operators, electric actuators, and pneumatic actuators. (2"-24" per ISO 5211)

Bushings (4): Stem bushing reduces torque and isolates the stem from the valve body, preventing seizure of the stem due to corrosion in the stem journal baring.

Precision Profile Disc: Provides bubble-tight shut-off and assures minimum torque and longer seat life.

Shaft Weather Seal: (Below bushing on some models)

Seat Face: Eliminates need for flange gaskets.

Phenolic Backed Seat: Non-collapsible, stretch resistant, blow-out proof, field replaceable.

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