HFT Pipestoppers® Aluminium Test Plugs and Stoppers are suitable for leak testing, isolation, sealing, stopping and even for the purging of pipework in size range 1.5 to 36″ (38 to 900 mm).
Outlets on the Plugs (for gas or liquid connections):
Plug Diameters up to 6″ (150* mm)
• 0.5 BSP (12 mm) diameter outlet
Plug Diameters 6 to 18″ (150* to 450 mm)
• 1″ BSP (25 mm) diameter outlet
Plug Diameters 20″ (500 mm) upwards
• 2″ BSP (50 mm) diameter outlet
The natural rubber rings can be used up to 80˚C (176˚F) in continuous use. For higher temperatures, we supply rings made from silicone that can be used up to 300˚C (572˚F) and viton, which can be used up to 350˚C (662˚F). Technical data sheets about the resistance of various rubbers to all temperatures and materials are available on request.
Plugs can be braced to assist in greater stability.
Note: For effective sealing, internal surfaces of cavities must be clean and dry.
Pressure ratings may be affected by poor, slippery or dirty surfaces.
Some smooth surfaces may not be effective and may need to be roughened.