Spring Loaded Safety Valve Manufacturer in Canada 

The Spring Loaded Safety Valve is a pressure relief valve that automatically opens to release pressure from pipelines, pressure vessels, boilers, and industrial machinery when the pressure reaches a particular level and closes again when the pressure returns to regular operating levels. As a topmost Spring Loaded Safety Valve Manufacturer in Canada, ValvesOnly Canada delivers high-performance spring loaded safety valves to industries across Toronto, Calgary, Edmonton, Vancouver, Montreal and throughout Canada.

Spring Loaded Safety Valve Technical Specifications:

• Nominal Size: ½” to 12″
• Pressure Class: Class 150 to Class 2500
• Temperature Range: -29°C to 538°C
• End Connections: Flanged, Threaded, Socket Weld, Butt Weld
• Operation: Automatic Spring Loaded
• Seat Type: Soft Seat / Metal Seat
• Design Standards: API 526, API 527, ASME Section VIII, ASME B16.34
• Inspection and Testing: Hydrostatic Pressure Test, Set Pressure Calibration, Seat Leakage Test, Blowdown Test, Functional Performance Test

Spring Loaded Safety Valve Construction Materials:

Body and Pressure Boundary Materials: 

• ASTM A216 WCB / WCC
• ASTM A351 CF8 / CF8M
• ASTM A182 F304 / F316 / F316L
• ASTM A890 F51
• ASTM A890 F53 / F55 / 2507
• ASTM A351 Alloy 20 (CN7M)
• ASTM B564 Hastelloy C276
• ASTM B564 Inconel 625 / 718

Internal Parts:

• Disc: Stainless Steel / Duplex Stainless Steel / Hastelloy
• Nozzle: Stainless Steel
• Spring: Stainless Steel
• Stem: ASTM A182 F304 / F316

Spring Loaded Safety Valve Sealing Arrangement: 

• Seat: Soft Seated / Metal Seated
• Gasket: Spiral Wound Graphite
• Packing: Graphite

Spring Loaded Safety Valve Operation Explained: 

Spring Loaded Safety Valve is a safety instrument that automatically discharges pressure whenever the pressure level becomes greater than the specified set pressure to prevent any damage to equipment due to overpressure. Under normal circumstances, the disc is kept firmly on the seat by the spring, ensuring a good seal.

But the valve opens instantly to release extra pressure when the pressure rises above the set pressure and the spring contracts. The spring instantly shuts the valve again, making the seal tight once the pressure decreases to a safe level.

Spring Loaded Safety Valve Material Selection:

Standard Materials:

Component	Material	Grade	Typical Application
Body	Carbon Steel	ASTM A216 WCB / WCC	General industrial service
Body	Stainless Steel	ASTM A351 CF8 / CF8M, ASTM A182 F304 / F316 / F316L	Corrosive process media
Body	Duplex Stainless Steel	ASTM A890 F51	Offshore and seawater service
Body	Super Duplex Stainless Steel	ASTM A890 F53 / F55 / 2507	High chloride environments
Body	Alloy 20	ASTM A351 CN7M	Acid handling systems
Body	Hastelloy	ASTM B564 C276	Severe chemical service
Body	Inconel	ASTM B564 625 / 718	High-temperature and high-pressure service

Additional Material Options:

• Hastelloy C276 for aggressive chemical service
• Stellite hard-faced trim and seating surfaces for extended service life
• Duplex and Super Duplex Stainless Steel for corrosive offshore applications
• Inconel 625 / Inconel 718 for severe temperature and pressure conditions
• Monel 400 for marine and seawater systems
• Customized material combinations available according to project specifications
• Low Temperature Carbon Steel (ASTM A352 LCB / LCC) for low-temperature service

Spring Loaded Safety Valve Product Features:

• Valve Type: Spring Loaded Safety Valve
• Operation: Automatic Spring Loaded
• Spring Design: Adjustable Compression Spring
• Discharge Type: Full Lift / Conventional

Performance Features:

• Accurate and consistent set pressure
• Quick reaction to pressure release
• Automatic reseating of valve
• Bubble tight sealing
• Constant performance under changing pressure
• Application with steam, gas, vapor and compressed air
• Minimum maintenance requirement
• Long life span

Inspection Procedures:

• Hydrostatic Pressure Testing
• Set Pressure Calibration
• Seat Leakage Testing
• Blowdown Testing
• Functional Performance Testing
• Visual and Dimensional Inspection

Spring Loaded Safety Valve Connection Options:

Our Spring Loaded Safety Valve is manufactured with multiple end connection options to suit industrial pressure relief systems.

• Flanged as per ASME B16.5
• Threaded (NPT / BSP)
• Socket Weld
• Butt Weld as per ASME B16.25
• Customized end connections available based on project requirements

Spring Loaded Safety Valve Industrial Applications:

• Oil and Gas Industry: Process Equipment, Separators, Compressors, Storage Tanks
• Petrochemical Industry: Reactors, Pipelines, Pressure Vessels
• Power Generation Industry: Boilers, Steam Systems, Auxiliary Equipment for Turbines
• Chemical Processing Industry: Process Vessels, High Pressure Piping Systems
• Wastewater Treatment Plants: Pressure Protection in Pumping and Treatment Systems
• Marine Industry: On Board Pressure Systems, Utility Systems
• Mining/Mining Process Industry: High Pressure Process Equipment
• Compressed Air Systems: Air Receivers, Discharge Line for Compressors
• Pipelines Industry: Pressure Protection in Industrial Transmission System