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  • Ductile Iron Internal Restraint Joints

Field LOK 350

Field LOK 350® gaskets are internal restraints for Tyton Joints® that use metal teeth embedded in the rubber to lock the gasket in place. Other than beveling the cut end of field cut pipe, which is required for any push-on gasket, Field Lok 350® gaskets do not require any special tools, grooving, or additional surface preparation.

Product Specifications
Pipe Type
DI – Ductile Iron
Sizing System
CIOD
Rubber Compound
SBR
Alternative Rubber
EPDM, NBR
Insert Material
SS
Applicable Standards
AWWA C111, ASTM F477
Certifications
NSF 61
Standard Sizes
Inches: 4, 6, 8, 10, 12, 14, 16, 18, 20, 24

Additional sizes and materials may be available. Please contact customer service to discuss your project requirements.

Resources

USP – Field LOK 350 Gasket Installation
USP – Field LOK 350 Disassembly
Field LOK Cut Sheet

Field LOK 350®
Field LOK 350®
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If you would like advice on selecting the right seal, are seeking a customized solution, or simply have a question, let us know and we can help.

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testimonials

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  • “

    Hultec has provided exceptional products, customer service, and technical expertise. We look forward to a continuing business relationship as we develop and introduce new and efficient products.

    Gilbert Garcia JM EAGLE

  • “

    Thanks, Hultec for partnering up with Jet Stream and allowing us to enter the restraint joint market with the HydroGrip for C900 and IPS PVC pipe. The twenty plus year relationship we have had with Hultec, formerly S&B, has allowed us to stay a strong competitor in the PVC market.

    Jerry Shaver Jet Stream a "Pipelife Company"

  • “

    Clearly for us, Hultec's ability to carry out developments in record time, they are always open to new products. Innovation is at the heart of PAM's history, we are committed to working with companies that are preparing for the future.

    Pierre Genelot Saint-gobain Pam

  • “

    Hultec has been a good partner for Atkore. They have been helpful with Technical and Operational knowledge. They have helped us balance in time inventory deliveries allowing us to better serve our customers through a lean process.

    Michael Deneen Atkore