This new line of very low cost expanding plugs for purging
pipes and pipe work fabrications is manufactured from nylon, a high quality
engineering polymer giving:
high accuracy
guaranteed sealing
long life time
The Expanding Purge Plugs can be used on small diameter
pipe work where conventional pipe purging devices are not suitable and on
pipe work fabrications where there are a number of branches and ends to
seal.
The full range includes two styles. Sizes from 0.05" (13mm) to 1.5" (38mm)
with solid shafts and there is a hollow shaft version as well which includes
another 1.5" (38mm) model with these sizes:
2.0" (50mm)
2.5" (62mm)
3.0" (75mm)
4.0" (100mm)
5.0" (125mm)
6.0" (150mm)
Hollow shaft plugs come with a sealing end cap with
internal rubber seal as well as a hose connector tailpiece and nut for
connecting a gas inlet hose or vent hose.
Each plug comprises a center shaft over which are two compression plates.
Between the compression plates is a natural rubber ring which is expanded by
means of a wing nut on the shaft, which when tightened closes the two plates
and compresses the rubber ring seal between them to seal the plug tightly
inside the pipe or hole.
The plugs are fully demountable for cleaning purposes and the shaft has an
'O' ring seal as well as a locking keyway to ensure re-assembly is positive
and leak tight.
