Description

Grooved Type Butterfly Valve Description
A grooved type butterfly valve is a quarter-turn valve featuring a disc-shaped closure element (butterfly) positioned
perpendicular to the flow path. Instead of traditional flanges or lugs, it utilizes pre-formed grooves on its body ends for secure
and effortless connection with grooved couplings.
Key components:
Body: Houses the internal mechanism and provides connections to the piping system. Typically made of ductile iron or cast
iron for durability and pressure resistance.
Disc (Butterfly): Rotates within the body to regulate flow. Materials vary depending on the application, like EPDM rubber for
water systems or metal for harsher fluids.
Shaft: Connects the disc to the actuator for rotation control. Can be manual (lever handle) or automated (gearbox or
pneumatic actuator).
Seat: Seals against the disc to prevent leakage, usually made of resilient materials like EPDM or PTFE.
Grooves: Annular channels machined on the body ends for attachment to grooved couplings.
Working principle:
The grooved butterfly valve uses a circular disc (or vane) to regulate flow through the valve. The disc is located in the center of
the valve body and is connected to a valve stem, which passes through the valve neck.