Categories > Pipe test plugs

Mechanical Pipe Plugs - Mechanical Seals

Mechanical pipe plugs, available for small and large diameter pipe.







Pipe flow stop assemblies with reinforced back plates, provide up to 72 psi seals. They offer long term flow stop solutions. Mechanical plugs do not require monitoring once braced in place, allowing down stream work to be completed.

Interlinking perimeter expansion seals or expanding disk seals, provide up to 160 feet water head pressures.

All pipe plugs must be braced, with anchor restraints or cross bar restraints.

Mechanical pipe plugs may be left in place for the duration of the project, with no pressure monitoring.

Diver installed plugs are equipped with internal air chambers for buoyancy assistance. Mechanical Pipeline plugs are an effective cost effective flow stopper.

The seal assembly may be EDPM elastomers, or NBR for oil/gas related projects.

Gas Pipeline Plugs three (3) inch to 20 inch.pipe-plugs-gas-pipes

Low Pressure mechanical pipe plugs - gas pipe line flow stoppers, with gas resistant NBR elastomer sealing.

Mechanical Gas pipeline plugs can be used for plastic and steel pipes. Plugs may include a valve for draining or for a control pressure gauge.


Mechanical pipe plugs-Test Plugs-small diameter pipes-14psi - 1bar


Westatlantic GP-Z small pipe diameter mechanical pipe plugs - for extended pipeline maintenance work. The GP-Z plugs may be fitted with a by-pass vent for by-pass or pipe testing. Fits all American or International pipe sizes up to 8 inch, 200mm.

Corrosion resistant stainless steel compression plates, rubber seals may be EDPM. NBR or Silicone. Seals may be sized for bell end of spigot end.

Multi-service long life plugs for City works

GP-Z blind plugs are also used to seal wall cores for future pipe passage or through slap openings.

GP-Z-DL pipe plugs prevent pipe flows up to 28psi - 2bar

Mechanical pipe plugs inflatable annular flow stopper seals.


Mechanical model plugs with stainless steel, aluminum or steel plate.

Mechanical plugs with annular pneumatic seals are a cost effective way to plug pipes. The elastomer expands against the pipe wall for an effective flow stopper.

Available in a range of diameters and configurations.

Test Plug PDF


Inflatable Pipe Test Plugs 

no-joint-test-plugsInflatable Pipe Plugs, are durable and safe for the temporary blocking of pipelines.

With high safety factors inflatable test plugs, are built for multiple cycles and long life.

Plugs are made in one piece without welds

During the manufacturing process high-quality noncorrosive materials and components are used. The aramid fiber reinforcement combines high strength with good resistance to wear and organic solvents. The sewer plugs are made of natural rubber having a thickness of no less than 10 mm which is two to three times thicker than comparable products.

Westatlantic Plugs are very successful and are being tested thoroughly on all possible aspects before being delivered to our customers, guarantees a safe working.

New innovations will lead to more security.



Inflatable Pipe Test plugs are equipped with one or more flow through. The plugs are suitable for carrying out pressure tests with water or air in accordance with local standards.

The plugs can be used for bypass functions as well as pipeline testing.


These test pipe plugs are very robust and the couplings are of the high quality in to avoid pipe leakage. 


Inflatable Pipe Plugs


Inflatable Sewer and Storm Pipeline Plugs are utilized for temporary shutting of pipe flows.

Westatlantic pipe plugs contribute to the safety of installers and personal working in or near the lines. Unique and specific production process guarantee safe and durable pipe plugs. 

See Complete data and sizing:














nbr-oil-gas-pipe-test-plugsTest Pipe Plugs (NBR / Nitrile)

Onshore - Offshore applications.

NBR / Nitrile rubber has a much better resistance against oil instead of natural rubber and suited to off-shore applications.

Resistant to oils, greases , hydrocarbons and dilute acids makes this plug particularity suitable for industrial sealing. 

Plugs are completely made of nitrile rubber (NBR) and reinforced with Aramid © cording. They are designed with a safety factor of 4x maximum pressure. For priority safe installation.

NBR/Nitrile Test pipe plugs are equipped with one or more flow through. These test pipe plugs are suitable for carrying out pressure tests with water or air in accordance with the local standard/Nitrile test pipe plugs can also be used for a bypass function as well.

NBR/ Nitrile is resistant to oils, greases , hydrocarbons and dilute acids. This makes this plug particularity suitable for industrial or Petrol Chemical pipeline sealing. 

Please note that the chemical resistance will depend on various factors such as: the type, the temperature, the concentration, the duration of the contact. The operating temperature is limited to aprox. 100°C.

Test pipe plug couplings are best quality materials to avoid leakage. 

See Complete data and sizing:

Mechanical Test Plugs 40mm to 450mm (1 1/2" to 18")

Zinc plated steel - aluminium-galvanized, rubber element seals. Butterfly fasteners, quick installation.








  • Aluminium Test Plugs – 40mm up to 600mm
  • Steel Test Plugs Double Seal - 40mm up to 450mm diameter
  • Galvanized Test Plugs up to 400mm
  • Aluminium Test Plugs Double Seal - 40mm up to 600mm diameter
  • Small Nylon Plugs
  • Super Nylon Testing Plugs
  • HDPE Test Plugs for Pressure Testing to 6 bar












Sizing Data mechanical plugs





Contact us: Westatlantic Tech Corp., 902 455 4455

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