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Steel Test Plugs - 40mm up to 450mm

Steel Test Plugs - 40mm up to 450mm

“Double Seal” plugs can be supplied to order.
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
    73012 40mm / 1.5" 37mm-50mm 31mm 81.5mm   1/2" 30 p.s.i 0.16kg
    73022 50mm / 2" 50mm-61mm 32.7mm 82.8mm   1/2" 30 p.s.i 0.18kg
    73032 65mm / 2.5" 61mm-75mm 33.2mm 80.5mm   1/2" 30 p.s.i 0.26kg
    73042 75mm / 3" 73mm-85mm 34mm 80.5mm   1/2" 20 p.s.i 0.28kg
    73052 89mm / 3.5" 84mm-100mm 41mm 81mm   1/2" 15 p.s.i 0.36kg
    73062 100mm / 4" 94mm-108mm 37.5mm 83.3mm   1/2" 10 p.s.i 0.41kg
    73072 114mm / 4.5" 110mm-125mm 40mm 83.3mm   1/2" 10 p.s.i 0.58kg
    73082 125mm / 5" 124mm-139mm 37mm 83.3mm   1/2" 10 p.s.i 0.60kg
    73092 150mm / 6" 150mm-160mm 39.7mm 83.3mm   1/2" 10 p.s.i 0.75kg
    73542 175mm / 7" 175mm-200mm 46mm 130mm   1" 7 p.s.i 1.56kg
    73552 200mm / 8" 195mm-215mm 37mm 130mm   1" 7 p.s.i 1.47kg
    73562 225mm / 9" 210mm-230mm 58mm 150mm   1" 7 p.s.i 1.93kg
    73572 250mm / 10" 245mm-260mm 55mm 150mm   1" 7 p.s.i 2.55kg
    73573 275mm / 11" 274mm-315mm 85mm 150mm   1" 7 p.s.i 2.55kg
    73582 300mm / 12" 296mm-320mm 85mm 150mm   1" 7 p.s.i 3.72kg
    73583 325mm / 13" 290mm-345mm 85mm 210mm   1" 5 p.s.i. 3.47kg
    73592 350mm / 14" 340mm-385mm 85mm 210mm   1" 5 p.s.i 6.54kg
    73602 375mm / 15" 370mm-415mm 100mm 210mm   1" 5 p.s.i 7.00kg
    73612 400mm / 16" 390mm-430mm 95mm 210mm   1" 5 p.s.i 8.45kg
    73622 450mm / 18" 448mm-495mm 100mm 220mm   1" 5 p.s.i 10.6kg
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