March 13, 2024 by Brina

Butterfly Valves

Butterfly valve has simple structure, can be used for low-pressure pipe media. It achieves the opening and closing function by turning a closing piece, names as disc, around a shaft throughout the top to the bottom of it. Butterfly valves can be used to control the flow of various types of fluids, including air, water, steam, and a variety of corrosive media, slurry, oil, liquid metals and radioactive media. It is mainly composed of valve body with a circle shape in the middle, stem/shaft, disc and seat (seal ring) built in the body.

Different Types of Butterfly Valves

Lug Type Butterfly Valve

Wafer Type Butterfly Valve

Dual Plate Wafer Type Check Valve

U Type Butterfly Valve

Grooved Butterfly Valve

Manual Butterfly Valve

Gear Operated Butterfly Valve

Lever Operated Butterfly Valve

Butterfly Valves Dimensions and Info

Dimension	11/2″-48″
End Connection	wafer type, lug type, double flanged, U-section, grooved end
Body Material	gray iron(GG25), ductile iron(GGG40/50), cast steel(WCB), stainless steel(CF8,CF8M,CF3,CF3M)
Disc Material	ductile iron(nickle plated or nylon coated) caststeel(A216WCB) stainless steel(CF8,CF8M,CF3,CF3M) aluminium bronze(C954)
Seat Material	EPDM, Buna-N(NBR),PTFE, viton, metal seated
Stem material	SS410,SS416,SS304, SS316
Actuator	handle lever, worm gear, pheumatic actuator,chain operator
Standard	API 609, BS5155, MSS SP-67/68, EN593