Check Valve Manufacturer in Canada

Every pipeline system that moves fluid through pumps, compressors, and process equipment needs protection against reverse flow. ValvesOnly Canada has grown into the top, producing automatic non-return valve solutions for oil and gas, water treatment, power generation, and marine industries across domestic and international markets.

Every check valve manufactured by ValvesOnly Canada is built for dependable non-return operation, stable sealing performance, and long service life across varying flow and pressure conditions.

What Makes Check Valves Essential in Process Systems?

A check valve is an automatic non-return valve that allows flow in one direction and prevents reverse flow through pressure differential alone, with no external actuation or power supply required. When forward flow is present, the disc moves away from the seat and flow passes through. The moment flow reverses, the closure element returns to the seat automatically, protecting pumps, compressors, and downstream equipment from back pressure damage and water hammer.

Check Valve Designs Manufactured:

ValvesOnly Canada manufactures check valves across a range of design types, each suited to specific flow characteristics, pressure conditions, and installation requirements.

• Dual Plate Check Valve – Compact wafer-style design with spring-assisted fast closing action for systems where space and rapid response are priorities
• Non Slam Swing Check Valve – Engineered to reduce water hammer and reverse flow impact in systems where sudden closure causes pressure surges
• Tilting Disc Check Valve – Faster response design that minimises flow reversal before closure in high-velocity systems
• Pressure Seal Swing Check Valve – Pressure-assisted sealing for high-pressure and high-temperature pipeline service
• Swing Check Valve – Hinged disc design for low-pressure drop applications in horizontal pipeline service
• Lift Check Valve – Vertical lift disc design for controlled high-pressure service
• Single Plate Wafer Check Valve – Lightweight compact configuration for space-constrained installations
• Forged Steel Swing Check Valve – High-strength forged body for demanding high-pressure industrial service

Dimensional Range and Technical Specifications:

• Size Range – 1/2 inch to 48 inch
• ASME Pressure Classes – Class 150, 300, 600, 900, 1500, and 2500
• PN Ratings – PN10, PN16, PN25, PN40, PN63, PN100, and PN160
• Temperature Range – Minus 29 degrees C to 650 degrees C
• End Connections – Flanged, Butt Weld, and Socket Weld
• Operation – Fully automatic, no external actuation required

Body Materials and Grade Selection:

• Carbon Steel (ASTM A216 WCB / A352 LCB / LCC) – General industrial and pipeline service
• Stainless Steel (A182 F304 / F316 / F316L / F321 / F347) – Corrosive and high-temperature process applications
• Duplex Stainless Steel (A890 F51 / 2205) – Offshore and seawater systems
• Super Duplex (F53 / F55 / 2507) – Aggressive chloride environments
• Alloy 20 (CN7M) – Acidic process systems
• Hastelloy (C276 / B3) – Severe chemical service
• Inconel (625 / 718) – High-temperature and high-pressure specialty applications
• Aluminium Bronze (C95400 / C95800) – Marine and brackish water systems

Standards, Testing, and Documentation:

Design standards include API 594, API 6D, ASME B16.34, BS 1868, and MSS SP-125. Testing covers hydrostatic shell testing, seat leakage testing, and functional closure verification to API 598. Mill test reports and compliance certificates are supplied with every order.

Getting Check Valve Selection Right:

Selecting the right check valve ensures long-term equipment protection and reliable system performance. Fast-response designs suit high-velocity systems, non-slam designs help minimize water hammer, and swing or lift configurations can be matched to specific installation requirements. Choosing the appropriate design, pressure class, and material grade helps maintain dependable operation throughout the valve's service life.

As a topmost Backflow Prevention Check Valve Manufacturer, Valves Only Canada manufactures check valves across major design types, pressure classes, and material grades, supported by complete documentation and quality-focused manufacturing practices.

Visit us : https://www.valvesonlycanada.com/product-category/check-valve/