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PYPLOK® Pyplok

PYPLOK® is a 360° radial swage mechanically attached fitting which permanently connects pipe and tube for a leak free, cold connection. The system is fast, reliable and tamper proof ideal for use in new build and maintenance works where fire hazards exist and a clean piping connection is required. A hydraulically powered compression tool swages the fitting over pipe/tube plastically deforming the fitting in seconds. The fitting can be used in a wide variety of low to high pressure piping applications in industries such as Marine & Offshore, Navy, Oil & Gas, Petrochemical, Steel, Mining and other Industrial uses.

This technology was originally developed in 1968 by McDonnell Aircraft as a replacement to threaded and brazed joints on the F-4 Fighter Jet. Threaded and brazed joints were less reliable in applications of high stresses and loads so they developed the 360° Radial Swage technology. McDonnell Aircraft licensed a company, Deutsch Metal Components (DMC) to manufacture this new fitting technology specifically for aerospace tubing application. In 1978, DMC expanded the range of the product to Nominal Bore Pipe, OD Tube and Metric Tube for industrial applications in the Oil & Gas, Marine & Offshore, Navy and Industrial Process and Power Piping industries. As an equal or better equivalent to welding and threading it was accepted as a new alternative to connecting pipes and tubes. In 2007, DMC decided to divest in the industrial line of echanically Attached Fittings and sell the product line to one of its largest users which was Tube-Mac®. Since then Tube-Mac® has integrated PYPLOK® into their large offering of non-welded piping solutions and has expanded the range to additional materials, configurations and sizes.


Tube-Mac PYPLOK® System assists You and Your Team with Safe and cost Effective Work Practices
Most Cost Effective On-site Pipe Work Fabrication and Repairs
PYPLOK® fittings are permanently swaged in “seconds” – reduces on-site time and labor.
PYPLOK® fittings are swaged on pipe/tube cold, no hot work permits or fire watch personnel are required.
PYPLOK® tooling is hydraulically actuated deleting special site services.
PYPLOK® system prevents the need for Gas Freeing.
PYPLOK® systems do not require acid pickling and neutralizing – eliminating the environmental issues relating to the disposal of such chemical wastes.
PYPLOK® eliminates the time and cost of NDT (radiography, x-ray) requirements.
PYPLOK® fittings are verified with a “Go-No-Go” inspection gauge – much quicker and less costly than NDT. Provides an Improved Safety Environment.

The PYPLOK® system, developed to reduce hot Work, is in itself a safe system since no torches, open flames or sparks are associated with the installation or maintenance.
PYPLOK® System on EVERY Installation Achieves

Improved productivity; many tasks carried out in only one-shift with minimum disruption to production. Installed cost reduction of up to 65 percent. PYPLOK® System on EVERY Installation Offers.

PYPLOK® is the only fitting in the world that offers “Environmental” outer O-ring seals which prevent external contaminants from entering the outside of your pipe/tube and our fitting. High tensile AND High torque hold. Crevice Corrosion protection. Requires Very Little specialized skill and Training.

PYPLOK® system provides a range of fittings and hand-held tooling that requires a minimum of specialized skills to install – easy and user friendly. On-site Training is available and takes less than 30-minutes to complete.

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