For Simple Reliable Testing Without Tube Wall Damage
EST's Bolt Type Medium Pressure Test Plugs are designed for simple, reliable testing of pipe and tubing, without the tube wall damage associated with other test plugs. That's because our Bolt Type plugs feature a neoprene seal - the only part of the plug that comes in contact with the tube I.D. To use, simply install into the open end of the pipe or tube and tighten the large compression nut to expand the seal element. Then begin testing.