EORV™ Buckling Pin Relief Valve

Performance Features

  • Set Pressure available from 5,000 to 20,000 psig
  • Sizes of 1/4 inch orifice with inlet and outlet connections up to 2”
  • Externally reset in minutes, without the need to open the pipeline
  • Continuous processing (fast inline external reset)
  • Hazardous service (limits operator exposure)
  • High operating pressure to set pressure ratio, 95% on minimum.
  • ASME “UD” stamped, section XIII
  • European Pressure Equipment Directive “CE” marked

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  • Set Pressures
  • Tolerance
  • Materials & Accessories
  • Documentation

Set Pressures

EORV™ Capabilities
Inlet Size Flow Area Set Pressure Range
0.813 0.049 sq in 5000 - 20,000 psi

Burst Tolerance

Marked Burst Pressure Burst Tolerance
> 5000 psig (345 barg) ± 5%


Inlet/Outlet ØD1 K1 K2 H W1 W2 ØD2 Weight
in mm in mm in mm in mm in mm in mm in mm in mm lbs
0.813 x 0.813 0.25 6.35 3.25 82.6 3.73 94.7 25.5 647.7 7.35 186.7 7.41 188.2 0.359 9.1 50

Materials of Construction

Minimum Standard Materials
  Carbon Steel Stainless Steel Low Temp Carbon Steel
Disc and Spindle (Internals)    
Alternative Materials availabile upon request, e.g Inconel 625, Duplex, Supler Duplex


BS&B supplies many of the Accessories required to safely and conveniently install our overpressure relief devices and complementary products. Through our professional team and global network of sales engineers and procurement personnel, we are able to provide the highest quality accessory products to meet your installation requirements.

Saf-T-Pin™ Buckling Pin Cartridge

The EORV can be provided with buckling pin cartridges that are installed like an electrical fuse. The Saf-T-Pin buckling pin cartridge allows a “quick-change” option of buckling pins with a simple push-in/pull-out design for installation within the enclosure. Each Saf-T-Pin cartridge contains a calibrated buckling pin that is perfectly mounted for optimum performance.

Replacement Buckling Pins

Stainless steel pins with tags containing pressure and traceability information including the serial number of the EORV device.

Product Literature

Buckling Pin Pressure Relief Technology