We are a leading manufacturer of water works valves, we have more than 15years experience in producting concentric butterfly valve, double eccentric butterfly valve, resilient seat gate valve, metal to meal seat gate valve, non return valve of swing check valve ball check valve, globe valve, strainer, etc.
The 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 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 butterfly valve, and flange butterfly valve, etc. The ductile iron butterfly valves are widely used in industry of potable water, sewage, and sea water.
The max. length extended stem we have produced is 4.9meter for underground pump station service butterfly valve.
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 stem extended Concentric Wafer Type Butterfly Valve or concentric Lug butterfly valve, please don’t hesitate to call us or email us!
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