Heat Resistant Double Purge Plug


The Double Purge Bag and Efficient Double Welding Purge Systems are both available as heat resistant versions.

Designed for use when high temperatures will be encountered during the process of pipe welding; such as pre-heated pipework, and pipes where very high temperatures are required for welding.

These versions of our inflatable Pipe purging systems are heat resistant up to 350ºC (572ºF) for up to 24 hours, or up to 500ºC for short periods of time, as with the standard systems, the heat resistant systems are available for all pipe diameters from 3 – 80″ (75 – 2035mm). Mirroring the features of the standard range of inflatable purging systems, the heat resistant range comes with a central band for rapid centering of the system to the weld root for the fastest set up times. The welder can position these systems prior to pre-heating and leave them in place throughout the pre-heating, welding and post-heat treatment cycles, allowing the weld to be purged continuously for up to 24 hours if necessary.

Sizing and Specification

PART NO. PRODUCT SIZES(MM) EXPANSION RANGE WEIGHT
HDP03 75mm 3″ 63 – 75mm 1.1kg
HDP04 100mm 4″ 92 – 100mm 1.2kg
HDP05 125mm 5″ 113 – 125mm 1.25kg
HDP06 150mm 6″ 138 – 150mm 1.3kg
HDP07 175mm 7″ 163 – 175mm 1.4kg
HDP08 200mm 8″ 190 – 215mm 1.4kg
HDP10 250mm 10″ 242 – 267mm 1.7kg
HDP12 300mm 12″ 291 – 316mm 2.1kg
HDP14 350mm 14″ 318 – 343mm 2.5kg
0HDP16 400mm 16″ 369 – 394mm 2.7kg
HDP18 450mm 18″ 420 – 445mm 3.0kg
HDP20 500mm 20″ 471 – 496mm 3.4kg
HDP22 550mm 22″ 553 – 577mm 3.6kg
HDP24 600mm 24″ 572 – 597mm 3.8kg
HDP26 650mm 26″ 620 – 645mm 4.5kg
HDP28 700mm 28″ 671 – 696mm 5.5kg
HDP30 750mm 30″ 722 – 747mm 6.0kg
HDP32 800mm 32″ 772 – 797mm 8.0kg
HDP36 900mm 36″ 874 – 899mm 9.1kg
HDP40 1000mm 40″ 990 – 1015mm 9.9kg
HDP42 1050mm 42″ 1023 – 1048mm 13.2kg
HDP44 1100mm 44″ 1125 – 1150mm 13.7kg
HDP48 1200mm 48″ 1175 – 1200mm 15.0kg
HDP54 1371mm 54″ 1359 – 1384mm 18.0kg
HDP60 1524mm 60″ 1512 – 1537mm 20.0kg
HDP72 1828mm 72″ 1816 – 1841mm 28.0kg
HDP80 2031mm 80″ 2019 – 2044mm 30.0kg

* Larger sizes and specials available on request

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