About Us 2025

Pyplok® is a 360° radial swage non-welded 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.

Pyplok® Product and Company History

St. Louis-based McDonnell Aircraft 360° radial compression swage technology to replace AN/MS tube fittings on the F-4 fighter jet.

1968

Deutsch Metal Components patented an NPS pipe and OD tube fitting system called Pyplok®. Originally developed for the U.S. Navy, it expanded over the years to provide products and solutions to petrochemical and other industrial process markets.

1978

The owners of Deutsch Metal Components sold their company to private equity investors, who eventually changed the company name to Design Metal Connections.

2004

Pyplok® products continue to push industry innovation, being sold and trusted in major piping projects around the world.

2025

Pyplok® fittings are Marine Type Approved by ABS, BV, CCS, LR, and DNV, as well as NAVSEA, US and Canadian Coast Guard. TSSA and CRN across all Canadian Provinces. Pyplok® is accepted and specified by many multinational corporations such as Shell, BP, ExxonMobil, Equinor, Petrobras and many others. Tube-Mac® is an ISO 9001:2015 certified manufacturer.

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