Steel Test Plugs Double Seal
Double Seal Plugs insert further into the pipe giving greater stability in the pipeline. The two seals help to centralise the plug inside the pipe.
Thrust washers fitted as standard on all plugs 9” (225mm) & above.
Zinc plated – corrosion resistant to 90 hours salt spray test.
Combines the economy of price with the strength of steel.
Carries the Horobin name – quality guaranteed.
Nominal pipe sizes, minimum and maximum pipe diameters each Plug will fit,
Maximum test pressure and weight of Plug are available below
It is the responsibility of the installer / operator to make sure the maximum allowed back pressure of HOROBIN pipe stoppers are not exceeded.
Please see maximum allowed back pressures in the table below
| Part No. | Pipe Size Internal Nominal Diameter | Will Fit Pipes With Internal Diameter | Minimum Insertion into Pipe | Overall length | Contact length | Diameter of waterway | Maximum allowable back pressure | Approx. Weight |
| 76012 | 40mm / 1 1/2" | 37mm-50mm | 62mm | 140mm | 1/2" | 30p.s.i | 0.25kg | |
| 76022 | 50mm / 2" | 50mm-61mm | 66mm | 140mm | 1/2" | 30p.s.i | 0.28kg | |
| 76032 | 65mm / 2 1/2" | 61mm-75mm | 67mm | 140mm | 1/2" | 30p.s.i | 0.46kg | |
| 76042 | 75mm / 3" | 73mm-85mm | 68mm | 140mm | 1/2" | 20p.s.i | 0.49kg | |
| 76052 | 89mm / 3 1/2" | 84mm-100mm | 82mm | 140mm | 1/2" | 15p.s.i | 0.68kg | |
| 76062 | 100mm / 4" | 94mm-108mm | 76mm | 140mm | 1/2" | 10p.s.i | 0.70kg | |
| 76072 | 114mm / 4 1/2" | 110mm-125mm | 80mm | 140mm | 1/2" | 10p.s.i | 1.10kg | |
| 76082 | 125mm / 5" | 124mm-139mm | 74mm | 140mm | 1/2" | 10p.s.i | 1.25kg | |
| 76092 | 150mm / 6" | 145mm-160mm | 80mm | 140mm | 1/2" | 10p.s.i | 1.50kg | |
| 76532 | 175mm / 7" | 175mm-200mm | 92mm | 210mm | 1" | 7p.s.i | 2.65kg | |
| 76552 | 200mm / 8" | 195mm-215mm | 92mm | 210mm | 1" | 7p.s.i | 2.70kg | |
| 76562 | 225mm / 9" | 210mm-230mm | 92mm | 210mm | 1" | 7p.s.i | 3.45kg | |
| 76572 | 250mm / 10" | 245mm-260mm | 110mm | 210mm | 1" | 7p.s.i | 4.90kg | |
| 76582 | 300mm / 12" | 296mm-320mm | 170mm | 210mm | 1" | 7p.s.i | 6.75kg | |
| 76592 | 350mm / 14" | 348mm-385mm | 170mm | 310mm | 1" | 5p.s.i | 11.40kg | |
| 76602 | 375mm / 15" | 370mm-415mm | 200mm | 310mm | 1" | 5p.s.i | 12.20kg | |
| 76612 | 400mm / 16" | 390mm-430mm | 195mm | 310mm | 1" | 5p.s.i | 13.90kg | |
| 76632 | 450mm / 18" | 448mm-495mm | 250mm | 410mm | 1" | 5p.s.i | 18.50kg |