Main parts and materials
| Parts Name | Materials |
| Body、Bonnet | WCB/LCB/CF8 |
| Disc | WCB/LCB/CF8 |
| Stem | A182 F6a/A182 F316/A182 304 |
| Seat | RPTFE |
Types of Butterfly Valve Construction
Yuanda Valve Group is a proud supplier of butterfly valves, from API 609 Butterfly Valve to Cast Iron Wafer Type Butterfly Valve.
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
Yuanda Valve Group 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
HVAC
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.
Bushings: 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.