All plugs are equipped with quick action couplings for inflation, larger sizes have two couplings installed. The size and number of eye bolts varies on plug size. Thanks to the flexibility of the plugs, they can be easily inserted trough manholes of size 600 x 600 mm (up to 90°).
PLUGY - Blocking plug

PLUGSY - Bypass plug

BACK PRESSURE - measured in dry iron pipe (bar) - Plugy, Plugsy:

