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Seal It, Quick, Fast and Easy!
Huntingdon Fusion Techniques HFT® also provides Pipestoppers® Steel Plugs and Stoppers in all plug sizes for more arduous duties. These HFT Pipestoppers® Steel Drain Test Plugs are typically suitable for long immersion in water, for use at higher temperatures or for contact with acidic or alkaline environments for which the nylon, aluminium and inflatable plugs may be unsuitable.
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Read MoreLeak Testing, Isolation, Sealing and Stopping
HFT Pipestoppers® Steel Test Plugs can be used for low pressure testing and plugging all pipes, pipelines and pipe work fabrications and any other orifices between 2 to 48" (50 to 1200 mm) diameter.
These HFT Pipestoppers® Steel Drain Test Plugs are specifically designed for heavier duty applications such as long immersion in water, for use at higher temperatures or for contact with acidic or alkaline environments for which the nylon, aluminium and inflatable plugs are unsuitable.
Low cost expanding HFT Pipestoppers® Steel Testing Plugs and Stoppers range for sizes up to 48" (1200 mm) diameter.
The standard seals are made from natural rubber. Synthetic rubber seals (for example for petrochemical applications) are also available.
Options are:
• Silicone
• Nitrile
• Neoprene
• Viton
HFT Pipestoppers® Steel Test Plugs and Stoppers are available as single plugs as well as double versions for greater sealing capacity and stability inside pipes.
Standard sizes of HFT Pipestoppers® Steel Test Plugs and Stoppers are available for immediate delivery.
All Plugs conform to Quality Standards BS8005 and BS EN752-4 for low pressure testing and sealing of pipes.
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Read MoreGreat for Purging of Pipework too!
The HFT Pipestoppers® Steel Test Plugs and Stoppers are extremely easy to use: Merely insert the Plug into the pipe and tighten the wing nut to move the top and bottom plates together, thereby expanding the rubber ring to seal tightly in the pipe.
A patented friction-free washer allows for easy tightening of the wing nut.
The HFT Pipestoppers® Steel Test Plugs and Stoppers are suitable for the more arduous tasks such as:
• Contact with acidic or alkaline environments.
• For long immersion in water.
• Use at higher temperatures.
Where plugs might be required to work close to the top of their pressure range and to hold seals longer than would be the case with single plugs, Huntingdon Fusion Techniques HFT® offers Pipestoppers® Double Length Steel Plugs and Stoppers.
With the HFT Pipestoppers® Double Steel Testing Plugs, the pressure capability of the Plug increases, the double plug preventing tipping (like a 'butterfly' valve) to guarantee the seal. They are more secure at the highest point of their pressure range and give more stability inside the pipework, giving a greater guarantee of the seal.
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Read MoreSingle and Double Models
HFT Pipestoppers® Steel Test Plugs and Stoppers are available in sizes 2 to 48" (50 to 1200 mm) and are manufactured with outlets according to their diameters.
Outlets on the Plugs (for gas or liquid connection):
Plug Diameters up to 150 mm (6")
• 12 mm diameter outlet (0.5" BSP)
Plug Diameters 200 to 450 mm (8" to 18")
• 25 mm diameter outlet (1.0" BSP)
Plug Diameter 500 mm (20") and upwards
• 50 mm diameter outlet (2.0" BSP)
The standard seals are made from natural rubber although specific synthetic seals are available for applications where greater chemical resistance and/or higher temperature operation is required.
Synthetic seal options are Silicone, Nitrile, Neoprene and Viton.
These HFT Pipestoppers® Steel Test Plugs and Stoppers can be used as Drain Test Plugs, Sewerage Test Plugs, Waste Test Plugs, Plumbing, Welding Purge Plugs and many other applications.
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Read MoreFrequently Asked Questions
1.0 Can the HFT Pipestoppers® Steel Drain Test Plugs be used as a permanent stopper in pipes?
HFT Pipestoppers® Steel Test Plugs can be used effectively as a permanent stopper. The wings can be cropped to prevent tampering if necessary.
2.0 Will HFT Pipestoppers® Steel Testing Plugs and Stoppers 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?
The standard sealing rings provided are manufactured from natural rubber. We manufacture and stock alternative rings made from nitrile, neoprene, silicone and viton rubbers which will resist attack by many harmful products. Full details for chemical resistance of these materials is available on request.
4.0 What is the maximum working temperature for the HFT Pipestoppers® Steel Test Plugs?
The natural rubber rings can be used up to 80˚C (176˚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?
HFT® manufactures special Steel Plugs made to size where required.
6.0 Can I have the plugs made as a branded product?
Yes, HFT® can have plugs made in your company name and house colours subject to quantities.
7.0 What pressures can the HFT Pipestoppers® Steel Test Plugs withstand?
A pressure chart for HFT Pipestoppers® Steel Testing Plugs is shown on the leaflet. (See the 'Downloads' tab).
Plugs can be braced to assist in greater stability. Contact Huntingdon Fusion Techniques HFT® for details.
Note: For effective sealing, internal surfaces of cavities must be clean and dry.
Some smooth surfaces may not be effective and may need to be roughened.
Pressure ratings may be affected by poor, slippery or dirty surfaces.
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Read MoreHFT Pipestoppers® Steel Plugs and Stoppers Singles and Doubles
See what our Users have to say....
Hello David, I just wanted to say “Thank you!” again for your support provided today concerning the Double Plugs during a very busy afternoon and all the information you have sent within a few hours. Great and very professional. I like to work with you, get the requested answers as soon as possible - although knowing that I am not your only distributor.
Jörg
Please contact us by email for actual user names and user lists which can be obtained separately.
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Shipping Information, Weights and Dimensions
Customs Tariff:
| European Customs Tariff: | 4016 9997 |
| International Customs Tariff: | 4016 999 0900 |
| United States Customs Tariff: | 7326 90 8585 |
Product Codes and Sizes:
HFT Pipestoppers® Steel Plugs and Stoppers are available for immediate delivery in a large range of 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) |
Sizes are also available as Double Steel Plugs in 0.5" BSP Outlet from 1.5 to 6" (38 to 152 mm).
HFT Pipestoppers® Steel Drain Plugs 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 INTO PIPE |
OVERALL LENGTH | MAX. | WEIGHT. | ||
| PART Nº | INCH | MM | MM | MM | MM | PSI | |
| PSP6038 PSP6050 PSP6060 PSP6075 PSP6085 PSP6100 PSP6115 PSP6125 PSP6145 PSP6150 |
1.5" 2" 2.5" 3" 3.5" 4" 4.5" 5" 5.5" 6" |
38 mm 51 mm 64 mm 76 mm 90 mm 102 mm 114 mm 127 mm 140 mm 152 mm |
37 - 50 mm 50 - 61 mm 61 - 75 mm 73 - 85 mm 84 - 100 mm 94 - 108 mm 110 - 125 mm 124 - 139 mm 138 - 150 mm 150 - 160 mm |
31.0 mm 32.7 mm 33.2 mm 34.0 mm 41.0 mm 37.5 mm 40.0 mm 37.0 mm 37.0 mm 39.7 mm |
81.5 mm 82.8 mm 80.5 mm 80.5 mm 81.0 mm 83.3 mm 83.3 mm 83.3 mm 83.3 mm 83.3 mm |
30 psi 30 psi 30 psi 20 psi 15 psi 10 psi 10 psi 10 psi 10 psi 10 psi |
0.16 kg 0.18 kg 0.26 kg 0.28 kg 0.36 kg 0.41 kg 0.58 kg 0.60 kg 0.65 kg 0.75 kg |
HFT Pipestoppers® Steel Drain Plugs 1.0" 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 INTO PIPE |
OVERALL LENGTH | MAX. | WEIGHT | ||
| PART Nº | INCH | MM | MM | MM | MM | PSI | |
| PSP7175 PSP7200 PSP7225 PSP7250 PSP7275 PSP7300 PSP7325 PSP7350 PSP7375 PSP7400 PSP7425 PSP7450 |
7" 8" 9" 10" 11" 12" 13" 14" 15" 16" 17" 18" |
178 mm 203 mm 229 mm 254 mm 279 mm 305 mm 330 mm 356 mm 381 mm 406 mm 432 mm 457 mm |
175 - 200 mm 195 - 215 mm 210 - 230 mm 245 - 260 mm 277 - 302 mm 296 - 320 mm 315 - 350 mm 340 - 385 mm 370 - 415 mm 390 - 430 mm 415 - 440 mm 448 - 495 mm |
46.0 mm 37.0 mm 58.0 mm 55.0 mm 85.0 mm 85.0 mm 85.0 mm 85.0 mm 100.0 mm 95.0 mm 95.0 mm 100.0 mm |
130 mm 130 mm 150 mm 150 mm 150 mm 150 mm 150 mm 210 mm 210 mm 210 mm 220 mm 220 mm |
7 psi 7 psi 7 psi 7 psi 7 psi 7 psi 7 psi 5 psi 5 psi 5 psi 5 psi 5 psi |
1.56 kg 1.47 kg 1.93 kg 2.55 kg 3.60 kg 3.72 kg 4.80 kg 6.54 kg 7.00 kg 8.45 kg 8.50 kg 10.6 kg |
Note: All sizes after 6" are supplied with a bonded natural rubber ring (from PSP7175 onward).
HFT Pipestoppers® Steel Expanding Double Plugs 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 INTO PIPE |
OVERALL LENGTH | MAX. | WEIGHT | ||
| PART Nº | INCH | MM | MM | MM | MM | PSI | |
| PSP8040 PSP8050 PSP8060 PSP8075 PSP8085 PSP8100 PSP8115 PSP8125 PSP8140 PSP8150 |
1.5" 2" 2.5" 3" 3.5" 4" 4.5" 5" 5.5" 6" |
38 mm 51 mm 64 mm 76 mm 90 mm 102 mm 114 mm 127 mm 140 mm 152 mm |
37 - 50 mm 50 - 61 mm 61 - 75 mm 73 - 85 mm 84 - 100 mm 94 - 108 mm 110 - 125 mm 124 - 139 mm 138 - 150 mm 150 - 160 mm |
31.0 mm 32.7 mm 33.2 mm 34.0 mm 41.0 mm 37.5 mm 40.0 mm 37.0 mm 37.0 mm 39.7 mm |
81.5 mm 82.8 mm 80.5 mm 80.5 mm 81.0 mm 83.3 mm 83.3 mm 83.3 mm 83.3 mm 83.3 mm |
30 psi 30 psi 30 psi 20 psi 15 psi 10 psi 10psi 10psi 10psi 10psi |
0.16 kg 0.18 kg 0.26 kg 0.28 kg 0.36 kg 0.41 kg 0.58 kg 0.60 kg 0.65 kg 0.75 kg |
HFT Pipestoppers® Steel Expanding Double Plugs with 1.0" 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 INTO PIPE |
OVERALL LENGTH | MAX. | WEIGHT | ||
| PART Nº | INCH | MM | MM | MM | MM | PSI | |
| PSP9175 PSP9200 PSP9225 PSP9250 PSP9275 PSP9300 PSP9350 PSP9375 PSP9400 |
7" 8" 9" 10" 11" 12" 14" 15" 16" |
178 mm 203 mm 229 mm 254 mm 279 mm 305 mm 356 mm 381 mm 406 mm |
175 - 200 mm 195 - 215 mm 210 - 230 mm 245 - 260 mm 277 - 302 mm 296 - 320 mm 345 - 376 mm 340 - 385 mm 370 - 415 mm |
46.0 mm 37.0 mm 58.0 mm 55.0 mm 55.0 mm 85.0 mm 85.0 mm 85.0 mm 100.0 mm |
130 mm 130 mm 150 mm 150 mm 150 mm 150 mm 210 mm 210 mm 210 mm |
7 psi 7 psi 7 psi 7 psi 7 psi 7 psi 5 psi 5 psi 5 psi |
1.56 kg 1.47 kg 1.93 kg 2.55 kg 3.70 kg 3.72 kg 6.00 kg 6.54 kg 7.00 kg |
Note: The Range may alter by a few mm in diameter at the minimum and/or maximum ends. The exact expanded and unexpanded dimensions will be quoted along with the price at the time of enquiry.
All sizes after 6” are Supplied with a Bonded Natural Rubber Ring (from PSP9175 onwards)
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
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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® Steel Plugs User Instructions Technical Manual
HFT Pipestoppers® Steel Plugs Material Safety Data Sheet MSDS
HFT Pipestoppers® Steel Plugs Technical Data Sheet TDS Rubber Rings
HFT Pipestoppers® Steel Plugs Certificate of Conformity
HFT Pipestoppers® Steel Plugs Price List
HFT Pipestoppers® Steel Plugs Price List Rubber Rings
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