Pressure Relief Valve (Safety Relief Valve)
Premium Pressure Relief Valves & Safety Relief Valves Manufacturer
Hyperr Valves Pvt Ltd is a leading manufacturers, supplier and exporter of safety relief valve / pressure relief valve. Our Pressure Relief Valve is the ultimate safeguard for your pressurized systems, engineered to automatically release excess pressure when it exceeds a preset limit. Unlike control valves that regulate flow, this safety device stays “normally closed” and activates only when critical protection is needed to prevent catastrophic equipment failure or piping rupture.
Designed in strict accordance with ASME Section VIII and API 526, our valves feature a precision spring-loaded mechanism that ensures rapid opening (“pop” action for gas) and reliable reseating once normal pressure is restored. Modelled with SolidWorks for structural integrity, they are built to withstand the most severe industrial overpressure events.
Key Features:
- Instant Protection: Rapid response to pressure surges, providing immediate relief to protect vessels and personnel.
- Certified Compliance: Designed and tested to meet API, ASME, and ISO safety standards.
- Tight Reseating: Engineered for precise "blowdown" (re-closing difference) to minimize product loss while ensuring system stability.
- Zero Leakage: Lapped nozzle and disc seats (Stellite hard-faced) ensure API 527 seat tightness during normal operation.
- Versatile Design: Suitable for liquid, gas, and steam service (Safety Relief) with options for bellows to handle back pressure.
Applications:
- Pressure Vessels
- Boilers
- Compressor Discharge
- Storage Tanks
- Piping Systems
| Technical Specifications | |
|---|---|
|
Size |
1/2” to 20” |
|
Design |
Full Lift, Spring Loaded, Open / Closed Bonnet |
|
Approval |
IBR |
|
Type |
Conventional, Balanced Bellow, Balance Piston, Pilot Operated, PTFE Lined |
|
Pressure Rating |
150# x 150# to 2500# x 300# |
|
End Connection |
Flange End, Screwed End, Tri-Clover End |
|
Media |
Steam, Vapor / Gas, Liquid |
|
Seat |
Metal Seat / Soft Seat |
|
Lever Type |
Open and Pack |
|
Orifice |
As per API 520 |
|
Blow Down |
<10% of Set Pressure |
|
Over Pressure |
>10% of Set Pressure |
|
Material |
Carbon Steel, Alloy Steel, Stainless steel, Duplex Steel, Hastelloy, Alloy-20, Monel, Inconel, PP, PTFE/RPTFE, PVC, CPVC, PVDF & other special material available on request |
Models Of Safety Relief Valves
Safety Relief Valve - Conventional
- Model No - HV-SRV-01
- Design - Closed Bonnet
- Size - 1/4" to 20"
- Rating - Up to 2500#
- Media - Gas, Vapour, Liquid, Steam
- End Connection - Flange End
Safety Relief Valve - Conventional
- Model No - HV-SRV-02
- Design - Open Bonnet
- Size - 3/4" to 20"
- Rating - Up to 2500#
- Media - Steam, Water
- End Connection - Flange End
Safety Relief Valve - Conventional
- Model No - HV-SRV-03
- Design - Close Bonnet, Packed Lever
- Size - 3/4" to 20"
- Rating - Up to 2500#
- Media - Gas, Vapour, Liquid, Steam
- End Connection - Flange End
Safety Relief Valve - Balance Bellow
- Model No - HV-SRV-04
- Design - Closed Bonnet
- Size - 3/4" to 20"
- Rating - Up to 2500#
- Media - Gas, Vapour, Liquid, Steam
- End Connection - Flange End
Safety Relief Valve - Conventional
- Model No - HV-SRV-05
- Design - Closed Bonnet, Inlet loose Flange
- Size - 1/2" to 1"
- Rating - Up to 600#
- Media - Gas, Vapour, Liquid, Steam
- Application - Cryogenic & Thermal Relief
- End Connection - Flange End
Safety Relief Valve - Conventional
- Model No - HV-SRV-06
- Design - Closed Bonnet, Forged Body
- Size - 1/2" to 2"
- Rating - 600# to 2500#
- Media - Gas, Vapour, Liquid, Steam
- End Connection - Flange End
Safety Relief Valve - Conventional
- Model No - HV-SRV-07
- Design - Closed Bonnet
- Size - 1/4" to 2"
- Rating - Up to 600#
- Media - Gas, Vapour, Liquid
- End Connection - Screwed End
Safety Relief Valve - Conventional
- Model No - HV-SRV-08
- Design - Closed Bonnet
- Size - 1/4" to 2"
- Rating - Up to 600#
- Media - Gas, Vapour, Liquid, Steam
- End Connection - Screw End x Flange End
Safety Relief Valve - Conventional
- Model No - HV-SRV-09
- Design - Closed Bonnet, Forged Body
- Size - 1/4" to 3"
- Rating - Upto 6000 PSI-G
- Media - Gas, Vapour, Liquid, Steam
- End Connection - Screwed End
Safety Relief Valve - Conventional
- Model No - HV-SRV-10
- Design - Straight Pattern
- Size - 1/4" to 2"
- Rating - Up to 1000 PSI-G
- Media - Gas, Vapour
- End Connection - Screwed End
Safety Relief Valve - Conventional
- Model No - HV-SRV-11
- Design - Closed Bonnet
- Size - 1/2" to 4"
- Rating - 150#
- Media - Pure Gas, Liquid, Clean Steam
- End Connection - Triclover End
- Special Feature - Internal Surface Finish Ra < 0.8 um, internally electro polished
Safety Relief Valve - Lined
- Model No - HV-SRV-12
- Design - PFA/FEP Lined, Closed Bonnet
- Size - 1/2" to 8"
- Rating - 150#
- Media - Corrosive Gas, Corrosive Liquid
- End Connection - Flange End
Safety Relief Valve - Pilot Operated
- Model No - HV-SRV-13
- Design - Semi/Full- Nozzle, Piston Sensing Pilot
- Size - 1" to 14"
- Rating - Upto 2500#
- Media - Gas, Vapour, Liquid
- Application - High Pressure
- End Connection - Flange End
Safety Relief Valve - Pilot Operated
- Model No - HV-SRV-14
- Design - Semi/Full- Nozzle, Diaphragm Sensing Pilot
- Size - 1" to 14"
- Rating - Upto 2500#
- Media - Gas, Vapour, Liquid
- Application - Low Pressure
- End Connection - Flange End
Safety Relief Valve - Plastic
- Model No - HV-SRV-15
- Design - Closed Bonnet
- Size - 1/2" to 2"
- Rating - 150#
- Media - Gas, Vapour, Liquid
- End Connection - Flange End
Safety Relief Valve - Plastic
- Model No - HV-SRV-15
- Design - Closed Bonnet
- Size - 1/2" to 2"
- Rating - 150#
- Media - Gas, Vapour, Liquid
- End Connection - Screwed End
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