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    Products | Delta Engineering B.V.

    OsecoElfab rupture discs & accessories
    Elmac / Protectoseal flame arresters 
    Elmac / Protectoseal pressure protection
    Val-Tex valve lube sealants, equipment
    Sealweld valve lube sealants, equipment
    Tacmina smoothflow pumps
    Williams air driven metering pumps
    Kenco level measurement

    • OsecoElfab rupture discs & accessories
    • Elmac / Protectoseal flame arresters
    • Elmac / Protectoseal low pressure protection
    • Val-Tex valve lube sealants, equipment
    • Sealweld valve lube sealants, equipment

      Products | Delta Engineering B.V.

      OsecoElfab rupture discs & accessories
      Elmac / Protectoseal flame arresters 
      Elmac / Protectoseal pressure protection
      Val-Tex valve lube sealants, equipment
      Sealweld valve lube sealants, equipment
      Tacmina smoothflow pumps
      Williams air driven metering pumps
      Kenco level measurement

    • Tacmina smoothflow pumps
    • Williams air-driven metering pumps
    • Kenco level measurement
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    • Elmac / Protectoseal flame arresters
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6 August 2025
Categories
  • OsecoElfab Welded Cartridges
Tags

LoKr Safety Cartridge

Upgrade your pressure relief performance with a low KR rupture disc in a leak-tight, welded safety cartridge unit.

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Description

The next step in the evolution of rupture disc technology for pressure relieving systems, the LoKr Safety Cartridge unites the innovative welded technology of the Oseco Safety Cartridge with the technically advanced design of the LoKr rupture disc.

A best-in-class Flow Resistance Factor (FRF) or KR is combined with the ease of use and leak-tightness of the Safety Cartridge. This enables users minimize the require line sizes, while offering exceptional reliability, easy installation, and a leak-tight rupture disc that supports environmental targets.

The LoKr SC covers the widest range of burst pressures and application types possible with a single disc, making it as close to a universal rupture disc solution as you can get.

Read More

Read full column
 

‍Key features

  • Sizes 1" - 10"
  • Operating ratio: 95%
  • Burst tolerance: +/-5% of specified burst pressure
  • KR value: 0.22
  • Reverse acting rupture disc
  • Hermetically sealed design eliminates leak paths
  • Leak checked to 1×10-8 cc-atm/sec using helium
  • Fully integrated disc-and-holder eliminates installation errors
  • One-piece assembly eliminates torque issues
  • Available for gas and liquid service
  • Non-fragmenting design
  • Withstands full vacuum
  • Suitable for high-cycling or pulsating applications
  • Standard materials of construction: 316 Series Stainless Steel, Inconel® 600, Monel®, and Hastelloy®

Downloads

Installation guide
Datasheet EN-US
LoKr Safety Cartridge Brochure

Product type

Welded cartridges
OsecoElfab

Industry

Chemical & Petrochemical
Hydrogen Safety
Midstream & FPSOs
Refining
Upstream & Offshore
Pharmaceutical & API

Pressure Level

Low
Medium
High

Delta Engineering B.V.

Jacob le Mairestraat 253
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The Netherlands

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info@deltaengineeringbv.com

Monday to Friday 8:30 – 17:00

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