- Product
- Overview
- Key Features
- Applications
- Specification
- FAQ
- Ordering
- Downloads
- Gallery
Effective Sealing is Simple!
The HFT Pipestoppers® range of Aluminium Test Plugs are specifically designed for heavy duty applications and are suitable for arduous duties such as immersion in chemicals and/or exposure to higher temperatures.
Typical applications for aluminium plugs involve plumbing operations, domestic and industrial water, drainage systems as well for offshore operations. They are negatively buoyant for sub-sea work and can be used in all kinds of pipes and materials for leak testing, isolation, sealing, stopping and even for weld purging.
The standard seals are made from natural rubber and special rubber seals are available for applications where greater resistance to chemicals and / or temperatures is required.
Contact us - See our Worldwide Offices
Read MoreSuitable for Weld Purging too
Huntingdon Fusion Techniques manufacture and supply HFT Pipestoppers® Aluminium Test Plugs and Stoppers to complement the HFT Pipestoppers® range of Nylon Expanding Drain Test Plugs and Stoppers.
The HFT Pipestoppers® range of Aluminium Test Plugs and Stoppers are heavy duty, high temperature resistant and suitable for arduous duties such as immersion in chemicals
The HFT Pipestoppers® range of Aluminium Test Plugs can be used for leak testing, isolation, sealing, stopping and purging pipework in ducting and conduit, swimming pools, masking in painting and casting industries.
A variety of rubber sealing rings are available including natural rubber, silicone, nitrile, neoprene, viton and a friction free washer to ease tightening of the wing nut is a standard feature.
HFT Pipestoppers® Aluminium Test Plugs and Stoppers are available for entries and exits from 1.5" to 36" (38 to 900 mm).
All Plugs conform to British Standards BS8005 and BS EN752-4 for low pressure testing and sealing of pipes.
These HFT Pipestoppers® Aluminium Test Plugs and Stoppers can be used as Drain Test Plugs, Sewerage Test Plugs, Waste Test Plugs, Scupper Plugs, Plumbing, Welding Purge Plugs and many more applications.
Standard sizes of HFT Pipestoppers® Aluminium Test Plugs and Stoppers are available for immediate delivery.
Contact us - See our Worldwide Offices
Read MoreLeak Testing, Isolation, Sealing, Stopping
The standard seals on the HFT Pipestoppers® Aluminium Test Plugs and Stoppers are made from natural rubber.
Synthetic rubber seals are available for petrochemical applications where greater resistance to a variety of materials is required.
Available synthetic options are:
• Silicone
• Nitrile
• Neoprene
• Viton
Each HFT Pipestoppers® Aluminium Drain Test Plug expands to suit a variety of dimensions within its range.
Effective sealing is simple. HFT Pipestoppers® Aluminium Test Plugs and Stoppers merely need inserting into a pipe or other opening and the wing nut to be turned clockwise. The rubber ring will expand and provide a positive seal.
Tightening of the wing nuts are simple by the use of friction free washers.
Sizes range from 1.5" to 36" (38 to 900 mm) and great for leak testing, isolation, sealing, stopping and even for the weld purging of pipework too.
Contact us - See our Worldwide Offices
Read MoreOpportunities for Use and Applications
As well as for use in weld purging applications, HFT Pipestoppers® Aluminium Test Plug and Stoppers have a wide variety of other applications including:
Plumbing operations throughout the whole of industry, domestic and industrial water, sewage and drainage systems.
Ducting and conduit, swimming pools, masking in painting and casting industries, as leak test plugs for all pipework fabrications and many others.
HFT Pipestoppers® Aluminium Drain Test Plugs are also used to seal and protect tanks, vessels and containers during transportation, particularly when they are pressurised with inert gas.
Contact us - See our Worldwide Offices
Read MoreSize range 1.5 to 36" (38 to 914 mm)
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" (152* mm)
• 0.5 BSP (13 mm) diameter outlet
Plug Diameters 6 to 18" (152* to 457 mm)
• 1" BSP (25 mm) diameter outlet
Plug Diameters 20" (508 mm) upwards
• 2" BSP (51 mm) diameter outlet
(* The 6" (150 mm) Plug comes with a 0.5" (12 mm) or a 1" (25 mm) Outlet for your preference).
Further size specification details are shown on the 'Ordering' tab.
The standard seals are made from natural rubber. Other available options are silicone, nitrile, neoprene and viton.
Contact us - See our Worldwide Offices
Read MoreFrequently Asked Questions
1.0 Can the plugs be used as a permanent stopper in pipes?
HFT Pipestoppers® Aluminium Test Plugs can be used effectively as a permanent stopper. The wings can be cropped to prevent tampering.
2.0 Will HFT Pipestoppers® Aluminium Drain Test Plugs withstand attacks from various acids, alkalis and chemicals.
Technical data sheets about the chemical resistance of different materials is available on request.
3.0 What if HFT Pipestoppers® natural rubber rings deteriorate in the presence of my special chemicals, gases or fluids?
Synthetic sealing rings are available, made from nitrile, neoprene, silicone and viton rubbers which will resist attack by many harmful products.
4.0 What is the maximum working temperature for the HFT Pipestoppers® Aluminium Test Plugs and Stoppers?
The natural rubber rings can be used up to 70˚C (158˚F) in continuous use.
For higher temperatures, we manufacture 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.
5.0 I have a hole to seal, where your plug won't quite seal well enough, but the next size up is too big. Do you have any in between sizes?
The user can extend the range of each plug by a few millimetres by using an exterior rubber seal on top of the ring provided.
More details are available on request.
6.0 Can I have the plugs made as a branded product?
Yes, we can supply the screw caps in your own house colours as well as black or white. Caps can be provided with your name, initials or logo printed on them.
7.0 What pressures can the plugs withstand?
A pressure chart for HFT Pipestoppers® Aluminium Testing Plugs is shown on the leaflet. (See the Downloads tab.)
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.
Contact us - See our Worldwide Offices
Read MoreShipping Information, Weights and Dimensions
Customs Tariff:
| European Customs Tariff: | 4016 9997 |
| International Customs Tariff: | 4016 999 0900 |
| United States Customs Tariff: | 7326 90 8585 |
| Canada Customs Tariff: | 7326 90 8585 |
Product Codes and Sizes:
HFT Pipestoppers® Aluminium Test Plugs and Stoppers are available for immediate delivery in a range of standard sizes.
There are 3 tables below showing the 3 available types of BSP outlets:
| 0.5" BSP Outlet | (13 mm Diameter Outlet) |
| 1.0" BSP Outlet | (25 mm Diameter Outlet) |
| 2.0" BSP Outlet | (52 mm Diameter Outlet) |
HFT Pipestoppers® Aluminium Plugs with 0.5" BSP Outlet
All dimensions are based on the imperial system. Sizes shown in mm are only mathematic conversions of the imperial dimensions and are not intended to represent metric standards.
| PIPE SIZE INTERNAL DIAMETER | EXPANSION RANGE | MIN INSERTION | OVERALL LENGTH | MAX. | APPROX. | ||
| PART Nº | INCH | MM | MM | INTO PIPE | MM | PSI | WEIGHT |
| PSP3040 PSP3050 PSP3060 PSP3075 PSP3085 PSP3100 PSP3115 PSP3125 PSP3150 |
1.5" 2" 2.5" 3" 3.5" 4" 4.5" 5" 6" |
38 mm 51 mm 64 mm 76 mm 90 mm 102 mm 114 mm 127 mm 152 mm |
38 - 50 mm 49 - 62 mm 62 - 77 mm 73 - 89 mm 84 - 103 mm 94 - 110 mm 112 - 130 mm 125 - 142 mm 146 - 168 mm |
45 mm 43 mm 43 mm 43 mm 53 mm 47 mm 56 mm 60 mm 48 mm |
94 mm 90 mm 92 mm 94 mm 96 mm 94 mm 140 mm 95 mm 96 mm |
30 PSI 30 PSI 30 PSI 20 PSI 15 PSI 10 PSI 10 PSI 10 PSI 10 PSI |
0.17 kg 0.22 kg 0.27 kg 0.31 kg 0.36 kg 0.36 kg 0.47 kg 0.79 kg 0.70 kg |
| PSPS1001 PSPS1002 |
1/2" BSP Swivel Nut and Tailpiece and Washer 1/2" BSP Nipple Cap with Washer |
||||||
HFT Pipestoppers® Aluminium Plugs with 1" BSP Outlet
All dimensions are based on the imperial system. Sizes shown in mm are only mathematic conversions of the imperial dimensions and are not intended to represent metric standards.
| PIPE SIZE INTERNAL DIAMETER | EXPANSION RANGE | MIN INSERTION | OVERALL LENGTH | MAX. | APPROX. | ||
| PART Nº | INCH | MM | MM | INTO PIPE | MM | PSI | WEIGHT |
| PSP4150 PSP4175 PSP4200 PSP4225 PSP4250 PSP4275 PSP4300 PSP4350 PSP4375 PSP4400 PSP4450 |
6" 7" 8" 9" 10" 11" 12" 14" 15" 16" 18" |
152 mm 178 mm 203 mm 229 mm 254 mm 279 mm 305 mm 356 mm 381 mm 406 mm 457 mm |
146 - 168 mm 175 - 200 mm 193 - 220 mm 220 - 240 mm 245 - 270 mm 274 - 328 mm 295 - 325 mm 350 - 385 mm 370 - 410 mm 390 - 435 mm 445 - 495 mm |
48 mm 64 mm 64 mm 64 mm 73 mm 100 mm 77 mm 110 mm 110 mm 110 mm 110 mm |
96 mm 100 mm 100 mm 170 mm 178 mm 200 mm 200 mm 215 mm 225 mm 225 mm 225 mm |
7 PSI 7 PSI 7 PSI 7 PSI 7 PSI 7 PSI 7 PSI 5 PSI 5 PSI 5 PSI 5 PSI |
0.70 kg 1.92 kg 1.59 kg 2.06 kg 2.52 kg 3.45 kg 3.42 kg 6.95 kg 5.35 kg 5.90 kg 8.75 kg |
| PSPS1004 PSPS1025 |
White 1" BSP Cap White 1" BSP Nipple Cap |
||||||
HFT Pipestoppers® Aluminium Plugs with 2" BSP Outlet
All dimensions are based on the imperial system. Sizes shown in mm are only mathematic conversions of the imperial dimensions and are not intended to represent metric standards.
| PIPE SIZE INTERNAL DIAMETER | EXPANSION RANGE | MIN INSERTION | OVERALL LENGTH | MAX. | APPROX. | ||
| PART Nº | INCH | MM | MM | INTO PIPE | MM | PSI | WEIGHT |
| PSP4500 PSP4525 PSP4550 PSP4600 PSP4650 PSP4675 PSP4700 PSP4750 PSP4815 PSP4825 PSP4900 |
20" 21" 22" 24" 26" 27" 28" 30" 32" 33" 36" |
508 mm 533 mm 559 mm 610 mm 660 mm 686 mm 711 mm 762 mm 813 mm 838 mm 914 mm |
495 - 550 mm 495 - 550 mm 546 - 572 mm 595 - 650 mm 648 - 673 mm 673 - 699 mm 699 - 724 mm 749 - 775 mm 800 - 826 mm 826 - 851 mm 902 - 927 mm |
145 mm 145 mm 145 mm 145 mm |
255 mm 255 mm 255 mm 255 mm |
5 3 3 3 |
14.4 kg 16.0 kg 18.0 kg 22.0 kg 25.0 kg 26.5 kg 27.0 kg 28.0 kg 32.0 kg 35.0 kg 37.0 kg |
Spare Rubber Seals and Optional Type of Materials
All dimensions are based on the imperial system. Sizes shown in mm are only mathematic conversions of the imperial dimensions and are not intended to represent metric standards.
| PART Nº | DESCRIPTION | PRODUCT SIZE | SIZE RANGE | LENGTH OF SEAL | WEIGHT | |
| PSPS2013 PSPS2019 PSPS2025 PSPS2032 PSPS3038 PSPS3050 PSPS3063 PSPS3075 PSPS3085 PSPS3100 PSPS3115 PSPS3125 PSPS3150 |
Natural Rubber Sealing Ring Natural Rubber Sealing Ring Natural Rubber Sealing Ring Natural Rubber Sealing Ring Natural Rubber Sealing Ring Natural Rubber Sealing Ring Natural Rubber Sealing Ring Natural Rubber Sealing Ring Natural Rubber Sealing Ring Natural Rubber Sealing Ring Natural Rubber Sealing Ring Natural Rubber Sealing Ring Natural Rubber Sealing Ring |
12 mm 17 mm 25 mm 31 mm 37 mm 50 mm 65 mm 75 mm 90 mm 100 mm 115 mm 125 mm 152 mm |
1/2" 3/4" 1" 1 1/4" 1 1/2" 2" 2 1/2" 3" 3 1/2" 4" 4 1/2" 5" 6" |
12 mm 17 mm 25 mm 31 mm 37 mm 48 - 65 mm 60 - 77 mm 70 - 87 mm 83 - 97 mm 95 - 110 mm 114 - 130 mm 121 - 142 mm 148 - 162 mm |
20 mm 23 mm 25 mm 31 mm 31 mm 30 mm 32 mm 30 mm 30 mm 33 mm 33 mm 37 mm 37 mm |
10 gms 15 gms 20 gms 35 gms 45 gms 80 gms 130 mm 140 mm 148 mm 160 mm 216 mm 280 mm 390 mm |
Excellent physical properties including abrasion resistance.
General Temperature Range -20ºc to +70ºc
Silicone Rubber Rings
All dimensions are based on the imperial system. Sizes shown in mm are only mathematic conversions of the imperial dimensions and are not intended to represent metric standards.
| PART Nº | DESCRIPTION | PRODUCT SIZE | SIZE RANGE | LENGTH OF SEAL | WEIGHT | |
| PSPS4013 PSPS4019 PSPS4025 PSPS4032 PSPS4038 PSPS5050 PSPS5063 PSPS5075 PSPS5085 PSPS5100 PSPS5125 PSPS5150 |
Silicone Sealing Ring Silicone Sealing Ring Silicone Sealing Ring Silicone Sealing Ring Silicone Sealing Ring Silicone Sealing Ring Silicone Sealing Ring Silicone Sealing Ring Silicone Sealing Ring Silicone Sealing Ring Silicone Sealing Ring Silicone Sealing Ring |
12 mm 17 mm 25 mm 31 mm 37 mm 50 mm 65 mm 75 mm 90 mm 100 mm 125 mm 152 mm |
1/2" 3/4" 1" 1 1/4" 1 1/2" 2" 2 1/2" 3" 3 1/2" 4" 5" 6" |
12 mm 17 mm 25 mm 31 mm 37 mm 48 - 65 mm 60 - 77 mm 70 - 87 mm 83 - 97 mm 95 - 110 mm 121 - 142 mm 148 - 162 mm |
20 mm 23 mm 25 mm 31 mm 31 mm 30 mm 32 mm 30 mm 30 mm 33 mm 37 mm 37 mm |
10 gms 15 gms 20 gms 35 gms 45 gms 80 gms 130 mm 140 mm 148 mm 160 mm 280 mm 390 mm |
Good weathering and electrical insulation, food approved and flame retardant.
General Temperature Range -70ºc to +250ºc
Nitrile Rubber Rings
All dimensions are based on the imperial system. Sizes shown in mm are only mathematic conversions of the imperial dimensions and are not intended to represent metric standards.
| PART Nº | DESCRIPTION | PRODUCT SIZE | SIZE RANGE | LENGTH OF SEAL | WEIGHT | |
| PSPS6013 PSPS6019 PSPS6025 PSPS6032 PSPS6038 PSPS7050 PSPS7063 PSPS7075 PSPS7085 PSPS7100 PSPS7125 PSPS7150 |
Nitrile Sealing Ring Nitrile Sealing Ring Nitrile Sealing Ring Nitrile Sealing Ring Nitrile Sealing Ring Nitrile Sealing Ring Nitrile Sealing Ring Nitrile Sealing Ring Nitrile Sealing Ring Nitrile Sealing Ring Nitrile Sealing Ring Nitrile Sealing Ring |
12 mm 17 mm 25 mm 31 mm 37 mm 50 mm 65 mm 75 mm 90 mm 100 mm 125 mm 152 mm |
1/2" 3/4" 1" 1 1/4" 1 1/2" 2" 2 1/2" 3" 3 1/2" 4" 5" 6" |
12 mm 17 mm 25 mm 31 mm 37 mm 48 - 65 mm 60 - 77 mm 70 - 87 mm 83 - 97 mm 95 - 110 mm 121 - 142 mm 148 - 162 mm |
20 mm 23 mm 25 mm 31 mm 31 mm 30 mm 32 mm 30 mm 30 mm 33 mm 37 mm 37 mm |
10 gms 15 gms 20 gms 35 gms 45 gms 80 gms 130 mm 140 mm 148 mm 160 mm 280 mm 390 mm |
Moderate mechanical properties.
Excellent resistance to petroleum based fluids, oils, solvents, greases, but only moderate to aromatic hydrocarbons.
General Temperature Range -20ºc to +110ºc
Viton Rubber Rings
All dimensions are based on the imperial system. Sizes shown in mm are only mathematic conversions of the imperial dimensions and are not intended to represent metric standards.
| PART Nº | DESCRIPTION | PRODUCT SIZE | SIZE RANGE | LENGTH OF SEAL | WEIGHT | |
| PSPS8013 PSPS8019 PSPS8025 PSPS8032 PSPS8038 PSPS9050 PSPS9063 PSPS9075 PSPS9085 PSPS9100 PSPS9125 PSPS9150 |
Viton Rubber Sealing Ring Viton Rubber Sealing Ring Viton Rubber Sealing Ring Viton Rubber Sealing Ring Viton Rubber Sealing Ring Viton Rubber Sealing Ring Viton Rubber Sealing Ring Viton Rubber Sealing Ring Viton Rubber Sealing Ring Viton Rubber Sealing Ring Viton Rubber Sealing Ring Viton Rubber Sealing Ring |
12 mm 17 mm 25 mm 31 mm 37 mm 50 mm 65 mm 75 mm 90 mm 100 mm 125 mm 152 mm |
1/2" 3/4" 1" 1 1/4" 1 1/2" 2" 2 1/2" 3" 3 1/2" 4" 5" 6" |
12 mm 17 mm 25 mm 31 mm 37 mm 48 - 65 mm 60 - 77 mm 70 - 87 mm 83 - 97 mm 95 - 110 mm 121 - 142 mm 148 - 162 mm |
20 mm 23 mm 25 mm 31 mm 31 mm 30 mm 32 mm 30 mm 30 mm 33 mm 37 mm 37 mm |
10 gms 15 gms 20 gms 35 gms 45 gms 80 gms 130 mm 140 mm 148 mm 160 mm 280 mm 390 mm |
Excellent resistance to ozone, oxygen, mineral oil, synthetic hydraulic fluids, aromatics and many organic solvents and chemicals.
General Temperature Range -40ºc to +220ºc
Contact us - See our Worldwide Offices
Read MoreItems available as 'Downloads'
Leaflets and general sales material are available to everyone visiting our website.
Restricted access items are shown at the end of this Download section.
Special Note: The items below are restricted and only available in our Secure Login section. This is mainly for the protection of our Exclusive Distributor network.
Should you wish to receive an item mentioned below which is not active as a 'download' link on this page, please contact us or your nearest distributor.
HFT Pipestoppers® Aluminium Plugs User Instructions Technical Manual
HFT Pipestoppers® Aluminium Plugs User List Customer Reference
HFT Pipestoppers® Aluminium Plugs User List Customer Reference Letter
HFT Pipestoppers® Aluminium Plugs User List Natural Material Safety Data Sheet MSDS
HFT Pipestoppers® Aluminium Plugs Price List Rubber Rings
HFT Pipestoppers® Aluminium Plugs Price List 0.5 inch BSP
HFT Pipestoppers® Aluminium Plugs Price List 1 inch BSP
HFT Pipestoppers® Aluminium Plugs Price List 2 inch BSP
HFT Pipestoppers® Aluminium Plugs User List Technical Data Sheet TDS Rubber Rings
Contact us - See our Worldwide Offices
Read More
