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(780) 979-0505 (Edmonton area)

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Butterfly Valve Suppliers

Featured Items

Double Offset High Performance Butterfly Valves

Double Offset High Performance Butterfly Valves

Double Offset High Performance Butterfly Valves

Double Offset High Performance Butterfly Valves


  • Class 150: 2”-24” (including 2.5” & 5”)
  • Class 300: 2”-24” (including 2.5” & 5”)
  • Class 600: 3”-12”


ASME B16.34 Valves - Flanged, Threaded, and Welding End

ASME B16.5 Pipe Flanges and Flanged Fittings

ASME B16.10 Face to Face and End to End Dimensions of Valves

ANSI/FCI 70-2 Control Valve Seat Leakage

MSS SP-25 Standard Marking System for Valves

MSS SP-44 Steel Pipe Line Flanges

MSS SP-55 Quality Standards for Steel Castings

MSS SP-61 Pressure Testing of Steel Valves

MSS SP-68 High Pressure Butterfly Valves with Offset Design

MSS SP-96 Terminology for Valves and Fittings

API 598 Valve Inspection and Testing

API 607 Fire Test for Soft Seated Valves

API 609 Butterfly Valves: Double Flanged, Lug and Wafer Type

NSF/ANSI 61 (2”-24”, Stainless 215 & 230)

Drinking Water System Components - Health Effects

CE marked and documented valves that conform to the European Pressure Equipment Directive (PED) 97/23/EC are available in ASME class 150 & ASME class 300, both standard and fire-safe configurations.

CRN No. 0C17459.5CL

More Details



Butterfly Valves

Butterfly Valves

BUTTERFLY VALVES use what has been termed "a rotating disc" to reduce or shut off flow in a pipe. The disc or "wafer" pivots on a central axle connected to a handle or other control device outside the valve.

When the thin disc is positioned parallel to the direction of flow, fluids move freely around it. As the disc is rotated it takes up more and more of the diameter, choking off the flow. At 90 degrees, the disc seals against seats in the valve body to stop flow altogether.

This design is considered well suited to applications in which frequent throttling of flow is required. Butterfly valves are commonly specified in situations where high volumes of gases or liquids are moving under relatively low pressure.


About Us

Associated ValveSince 1984, Associated Valve has served Western Canada and the world with industrial, sanitary and specialty valves and related products. Whether you are refitting during a shutdown, building a new refinery or doing maintenance replacements in a pulp and paper mill, Associated Valve can meet your specialized needs. Associated Valve is part of the Canerector Group of companies and has been serving customers in Alberta and worldwide since 1984.

Contact Us

To discuss your valve needs and/or place an order:

(800) 661-7363 (Canada toll-free)

(780) 979-0505 (Edmonton area)

Fax: (780) 979-0444

Map3911-76 Ave NW
Edmonton Alberta
T6B 2S8


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