Types of Butterfly Valve Construction
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
- 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
- Chemical/Petrochemical Processing
- Food & Beverage
- Power & Utilities
- Pulp & Paper
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.