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HFT Pipestoppers® Expandable Nylon Pipe Plugs

Overview
Tech Specs
Ordering
FAQ

An Easy, Simple, Positive Seal!

HFT Pipestoppers® Nylon Plugs are versatile tools suitable for a multitude of applications. They are primarily used for leak testing of pipework fabrications or to prevent the ingress of dirt, vermin, or other unwanted materials. These plugs are constructed from injection-moulded, high-grade nylon components and rubber rings, offering a lightweight, non-rusting, and easily expandable solution that can be dismantled for cleaning purposes.
Key Features and Benefits
  • Suitable for various applications, including drain, waste, sewerage testing, and more.

Made from high-grade nylon 6, which is resistant to saltwater corrosion and many chemicals.

  • Insert the plug and tighten the wing nut clockwise to expand the rubber ring for a positive seal.
  • Available from 0.5 to 6" (13 to 152 mm).

HFT Pipestoppers® Nylon Plugs are versatile, lightweight, and mostly pocket-sized. They suit many applications and range from 0.5 to 6" (13 to 152 mm). These plugs are ideal for a number of other applications in the water and gas industries, as well as in all other areas where pipes are used or where holes need to be blocked, including even on nuclear submarines.

Testing and sealing of all pipes, pipe joints, and pipework assemblies can be done with the HFT Pipestoppers® Nylon Plugs. These plugs are used internationally as the standard drain test plugs for testing the leak tightness of foul water lines during installation.

Other applications include sealing holes in castings, tanks, and other assemblies for spraying and blasting to protect the insides, maintenance and installation of swimming pool and water spa pipework for use as 'Scupper Plugs' in ships, for telecommunication pipelines and pipework up to 6", as radiator test plugs for cars and commercial vehicles, as heat exchanger tube plugs, etc.

Along with natural rubber rings, the HFT Pipestoppers® Nylon Testing Plug provide a high-quality leak-tight seal in the selected orifice and is nuclear compatible, chemically clean, demountable, and will not seize up. The standard seals are made from natural rubber. However, other available options are:

    • Natural Rubber
    • Silicone
    • Nitrile
    • Neoprene
    • Viton
Technical Specifications
Leak Tightness:
The hollow shaft plugs (1.5 to 6") have an "O" ring seal around the stem to ensure leak tightness.
Temperature:
The Argweld® nylon Weld Purge Plugs™ can be used up to 75ºC (167ºF) continuously and 105ºC (221ºF) intermittently. With special high-temperature seals, they can be used continuously up to 120ºC (248ºF).
Pressure:
All plugs conform to British Standards BS 8005 for low-pressure testing and sealing of pipes.
Ordering

Designed specifically for plumbing applications for the leak testing of pipes and sinks.

Product Code: PSPC001
Weight: 1.9 kg (4.18 lbs)
Case Size: 450 x 340 x 100 mm (17.17 x 13.38 x 3.93")

Kit Contents:

    • 2 x 2½" Hollow Shaft Plugs
    • 2 x 3" Hollow Shaft Plugs
    • 2 x 4" Hollow Shaft Plugs
    • 2 x 5" Hollow Shaft Plugs
    • 2 x 6" Hollow Shaft Plugs
    • 4 x ½" BSP Nipple Caps
    • 4 x ½" BSP Swivel Nut and Hose Tail

Designed specifically for plumbing applications for the leak testing of total waste fluid draining systems in drains domestic or commercial buildings.

Product Code: PSDK001
Weight: 2.65 kg (5.84 lbs)
Size: 450 x 340 x 100 mm (17.17 x 13.38 x 3.93")

Kit Contents:

    • 2 x 2½" Hollow Shaft Plugs
    • 2 x 3" Hollow Shaft Plugs
    • 2 x 4" Hollow Shaft Plugs
    • 2 x 5" Hollow Shaft Plugs
    • 2 x 6" Hollow Shaft Plugs
    • 4 x ½" BSP Nipple Caps
    • 4 x ½" BSP Swivel Nut and Hose Tail

Designed specifically for automotive applications for the leak testing of car radiators.

Product Code: PSAUC001
Weight: 1.9 kg (4.18 lbs)
Size: 450 x 340 x 100 mm (17.17 x 13.38 x 3.93")

Kit Contents:

  • 2 x ½" Solid Shaft Plugs
  • 2 x ½" Hollow Stem Plugs
  • 2 x ¾" Solid Shaft Plugs
  • 2 x ¾" Hollow Stem Plugs
  • 2 x 1" Solid Shaft Plugs
  • 2 x 1" Hollow Stem Plugs
  • 2 x 1¼" Solid Shaft Plugs
  • 2 x 1¼" Hollow Stem Plugs
  • 2 x 1½" Solid Shaft Plugs
  • 2 x 1½" Hollow Shaft Plugs
  • 2 x 2" Hollow Shaft Plugs
  • 4 x 0.5" BSP Nipple Caps
  • 4 x 0.5" BSP Swivel Nuts and Hose Tails

Designed specifically for commercial vehicle applications for the leak testing of radiators and inter-coolers.

Product Code: PSCMC001
Weight: 2.65 kg (5.84 lbs)
Size: 450 x 340 x 100 mm (17.17 x 13.38 x 3.93")

Kit Contents:

    • 2 x 2½" Hollow Shaft Plugs
    • 2 x 3" Hollow Shaft Plugs
    • 2 x 4" Hollow Shaft Plugs
    • 2 x 5" Hollow Shaft Plugs
    • 2 x 6" Hollow Shaft Plugs
    • 4 x 1/2" BSP Nipple Caps
    • 4 x 1/2" BSP Swivel Nut and Hose Tail

Designed specifically for plumbing applications for the leak testing of pipework used in pool and spa maintenance.

Product Code: PSSPA001
Weight: 1.9 kg (4.18 lbs)
Size: 450 x 340 x 100 mm (17.17 x 13.38 x 3.93")

Kit Contents:

  • 1 x 4" U-Gauge, Bulb, Y Union, and Hoses
  • 2 x 1.5" Nylon Plugs
  • 2 x 2" Nylon Plugs
  • 2 x 3" Nylon Plugs
  • 2 x 4" Nylon Plugs
  • 1 x Blue ABS Carry Storage Case with Cut Foam Liner
  • 1 x 0.5" BSP Nipple Caps
  • 1 x 0.5" Swivel Nut with Free Tail Piece
Your Questions Answered
This instrument measures oxygen levels to 100 parts per million (ppm) when welding stainless steel and other reactive metals to prevent oxidation and discolouration. For accurate measurements below this, other PurgEye® monitors are available to measure accurately down to 10 ppm.
Weld Purge Monitors® manufactured and designed by Huntingdon Fusion Techniques HFT® have become the world’s standard for measuring purge gas quality in TIG/GTAW and Plasma/PAW welding of tubes, pipes, tanks, and other enclosed structures.

The PurgEye® 100 IP65 detects oxygen levels down to 100 ppm and offers assurance that no leaks or outgassing cause oxygen to remain near a weld.
Materials like stainless steel and reactive alloys can oxidize and discolour when welded with oxygen.
The PurgEye® 100 IP65 will measure oxygen levels progressively as they are reduced by weld purging techniques so that welding can commence once the risk of oxidation and discolouration has been minimised.
A specialised and innovative solid-state, self-calibrating design.
HFT® manufactures a range of Weld Purge Monitors® that can measure oxygen levels down to 10 ppm.
The new PurgEye® 100 IP65 monitor has an auto push-button facility that calibrates the sensor at atmospheric and minimum oxygen levels.

This feature allows the sensor to be highly accurately calibrated for each reading throughout its life. If formal certification is required, HFT® has calibration centres worldwide.

Please contact us or your local HFT® distributor for the fastest and most economical method of obtaining a new certificate.
The Argweld® PurgEye® 100 IP65 Weld Purge Monitor® should not be exposed to gas at a temperature above 50ºC (122ºF).
The PurgEye® monitors can measure the oxygen level, not only inert gases, within any gas. They can monitor the oxygen level when using inert gases such as argon and helium and other welding gases such as nitrogen and nitrogen/hydrogen mixes.
The Push Button Auto Calibration feature on the Argweld® PurgEye® 100 IP65 allows users to easily calibrate the monitor at atmospheric levels and the lowest oxygen readings, ensuring increased accuracy and reliability during use.

The PurgEye® 100 IP65 is supplied with:

  • 2 x AA batteries
  • Leak-tight stainless-steel probe for sampling
  • 2 meters of gas sampling hose
  • Sampling bulb (vacuum pump)
  • Carry strap for neck or wrist
  • User instruction booklet
  • Storage and presentation case
  • Calibration certificate for Quality Control Procedures and Management Systems
The IP65 rating signifies that the Argweld® PurgEye® 100 IP65 is fully dust-tight and protected against water from a nozzle, ensuring the monitor can withstand harsh environments and maintain accurate readings.

If you have any additional questions or would like to learn more about how the Argweld® PurgEye® 100 IP65 can benefit your business, please contact us or your local HFT® distributor.

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HFT Pipestoppers® Expandable Nylon Pipe Plugs

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