For pipeline and process systems where compact design, quick operation, and efficient flow control matter, butterfly valves are the practical choice. ValvesOnly Canada has grown into the leading Butterfly Valve Manufacturer in Canada, producing engineered butterfly valve solutions to water treatment, power generation, oil and gas, and marine industries across domestic and international markets.
From large-diameter water pipelines to high-pressure industrial process systems, ValvesOnly Canada delivers butterfly valves built for consistent sealing performance and long service life.
What is a Butterfly Valve and How Does it Work?
A butterfly valve is a quarter-turn valve that uses a rotating disc mounted on a central shaft to control fluid flow. When the disc sits parallel to the flow, fluid passes freely. A 90-degree rotation blocks the flow path completely, while intermediate positions allow throttling. Their compact construction and low operating torque make them a preferred choice for large-diameter pipelines where space, weight, and actuation speed are key considerations.
Types of Butterfly Valves for Industrial Service:
ValvesOnly Canada supplies butterfly valves across three primary design types, each selected based on system pressure, temperature, and sealing performance requirements.
- Wafer Type Butterfly Valve – Compact design installed between flanges, suited for space-constrained systems where installation simplicity and low weight are priorities
- Lug Type Butterfly Valve – Designed for end-of-line service and systems requiring easy valve removal without disturbing adjacent piping
- Triple Offset Butterfly Valve – Metal-seated design engineered for high-pressure and high-temperature applications requiring bubble-tight shut-off and long sealing life
Pressure Ratings and End Connections:
- ASME Pressure Classes – Class 150, 300, 600, 900, 1500, and 2500
- PN Ratings – PN10, PN16, PN25, PN40, PN63, PN100, and PN160
- DN Sizing – Follows ISO 6708 across a wide nominal diameter range
- Face-to-Face Dimensions – Manufactured to ASME B16.10
End connections include wafer between flanges, lug type with threaded inserts, and flanged ends to ASME B16.5 and EN 1092.
Body Materials and Disc Options:
- Carbon Steel (ASTM A216 WCB / A352 LCB / LCC) – General industrial and pipeline service
- Stainless Steel (A182 F304 / F316 / F316L) – Corrosive and chemical process applications
- Duplex Stainless Steel (A890 F51 / 2205) – Offshore and seawater systems
- Super Duplex (F53 / F55 / 2507) – High chloride and aggressive process environments
- Aluminium Bronze (C95400 / C95800) – Marine and brackish water service
- Bronze (C83600 / LG2) – Water distribution and utility systems
- Alloy Steel (F11 / F22) – High-temperature industrial applications
Disc and seat materials are specified independently of the body, allowing cost-effective combinations based on wetted part requirements.
Design Standards and Testing:
Design standards include API 609, ASME B16.34, MSS SP-67, and MSS SP-68. Testing is carried out to API 598 and ISO 5208, covering hydrostatic pressure, seat leakage, and functional disc operation. Full documentation including mill test reports and compliance certificates is supplied with every order.
Industries Served:
- Petrochemical and chemical processing
- Mining and general industrial processing
- Water treatment and distribution systems
- Power generation facilities
- Oil and gas processing plants
- Marine and offshore systems
Choosing the Right Butterfly Valve:
- Pressure and Temperature – Determines whether a resilient seated or metal seated triple offset design is required
- Media Type – Drives disc and seat material selection across clean, corrosive, or hydrocarbon service
- Sealing Requirement – Isolation duty or throttling application determines the correct valve design
- Installation Space – Wafer for tight spaces, lug type for end-of-line or independent removal
- Actuation – Manual, gear operated, electric, or pneumatic compatibility confirmed against torque requirements.
Butterfly valves that are properly engineered and matched to the application provide efficient flow control, dependable shut-off performance, and long service life across a wide range of industrial systems. As a prominent Industrial Butterfly Valve Manufacturer, Valves Only Canada has been delivering high-quality butterfly valve solutions since 2013, offering wafer, lug, and triple offset designs in multiple pressure classes, sizes, and material grades to meet diverse operational requirements.
Visit us : https://www.valvesonlycanada.com/product-category/butterfly-valve/
Butterfly Valve Manufacturer in Canada 
