Lokring Technology
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6 Deploys
The only cold weld technology
Page last modified
May 11 2023
Lokring Technology manufactures a patented, metal-to-metal, butt weld equivalent connection for small bore pipes. Lokring, which qualifies to ASME B31 Piping Codes, can be installed in just 15 minutes and requires no hot-work and as a consequence no purging/drying, no habitats, no fire watch, and no NDT.
With over 30 years of experience, Lokring is proven to vastly reduce costs and schedule for maintenance, modifications, brownfield, and greenfield scopes whilst improving site safety.
Pro/con
Leak free (suitable for fully welded systems)
Restricted to 4" and below
Restriction on materials (316/316L, 312 and 304. A106 Gr B, A333 Gr 6, ASTM A53 and API 5L. C70600)
Specification
Compliance
ASME B31.1 and B31.3 Piping Codes. NACE MRO175 for Sour Service.
Certifications / lincenses
Lloyds Type Approval | American Bureau of Shipping Type Approval | IACS Type Approval | British Ministry of Defense Approval | NAVSEA US Navy Approval.
Sizes
Carbon Steel Pipes – ½” to 4” | Stainless Steel Pipes – ¼” to 3” | Copper Nickle Pipes – up to 2"
Pressure class
Couplings, elbows and other shapes suitable for class 3000#. Flange ratings 150 to 1500#
Temperature
Carbon Steel: -46 to 427ºC | Stainless Steel: -253 to 427ºC
Material
A106 Gr B, ASTM A53, API 5L, A333 Gr 6. 304/304L, 316/316L. UNS C 70600
Relative Business Impact
Technology Readiness Level
Development
Technology demonstration
Mature / Proven
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