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The Oseco PLR is a precision, low-pressure, non-fragmenting, reverse-buckling rupture disc. 

It offers extremely low burst pressures in an all-metal design. 

The armored construction of the PLR protects the disc from damage that affects the performance of other low-pressure rupture discs.

Standard disc materials are 316 Series Stainless Steel, Inconel® 600, Monel, and Nickel. For additional corrosion protection, a PFA fluoropolymer liner is available on the process side. 

The top portion/retainer ring on the atmospheric side of the PLR is always 316 Series Stainless Steel.

The PLR is excellent for use in protecting and isolating safety relief valves. 

Due to the large opening characteristics, in some sizes an extended outlet holder may be required when installed directly under an SRV.
Features
  • Sizes 1" through 8" standard with 10" and 12" available upon request 
  • Excellent for gas or liquid service 
  • Excellent for high-cycling service 
  • Excellent for vacuum service 
  • Damage-resistant due to unique armor construction 
  • Reverse-buckling design 
  • 3-D tag verifies correct installation 
  • Non-fragmenting design 
  • Ideal for safety relief valve isolation

Specifications

Brand

Enclosure, Body Material

  • 316 Stainless Steel
  • Hastelloy C
  • Inconel 600
  • Monel
  • Nickel

Ratio

  • Operating Ratio: 90 %

Tolerance

  • Burst Tolerance: ± 1.5 psig Below 5 psig
  • Burst Tolerance: ± 10 % at or Above 40 psig
  • Burst Tolerance: ± 3 psig from 5 to 40 psig

Documentation

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