U Type Flange Butterfly Valve

RSF is a leading manufacturer of water works valves, we have more than 15years experience in producing U Type Flange Butterfly Valve. The U Type butterfly valve is one kind of important water works valves like gate valve and check valve, which is widely used in water transmission system.

The main function of U type or Concentric Wafer Type Butterfly Valve is to control fluid flow rate in pipeline: turn handle or other actuator, the disc will rotate; lock the disc at the specified angle by locking device; the fluid flow rate depends on the disc angle; when the disc is turned 90℃ to the valve bore center line, the pipeline is cut off. Considering different connecting ends, the water work butterfly valve is classified in wafer type butterfly valve, lug type butterfly valve, U type butterfly valve, and flange butterfly valve, etc. The ductile iron U type butterfly valves are widely used in industry of potable water, sewage, and sea water. 

Standard:

Basic Design: EN593, API609, AWWA C504

Face to Face: ISO5752, EN558, API609

Connecting Ends: EN1092-2, ASME B16.5, ASME B16.47 A

Test: EN12266-1 Rating A, API 598

Design Feature:

Rubber Vulcanization Soft Seat

Wafer-Type End

Concentric Central Line

Bi-Directional

Stem with pins or without pins

Size Range: DN40 to DN1000 or 1 1/2” to 40”

Pressure Class: PN10, PN16, PN25, Class125, Class150

Material:

Body: Ductile Iron GGG50, GGG40

Disc: Ductile Iron, Stainless Steel CF8 CF8M, Duplex Stainless Steel, Bronze

Shaft: SS416, SS431, F304, F316, F51

Seat: EPDM, NBR, Nature Rubber

Bushing: PTFE or Bronze

Operation:

Lever, Gear, Electric Actuator, Pneumatic Actuator

Optional:

Stem Extension, WRAS Approved FBE Coating & Rubber

ROTORK or AUMA Gear Box

Warmly welcome to choose our water works valves! If you have any inquiries of U type butterfly valve, Concentric Wafer Type Butterfly Valve or concentric Lug butterfly valve, please don’t hesitate to call us or email us!