THE TEST-TITE PRESSURE RELIEF PNEUMATIC TEST PLUG features an internal pressure safety relief valve that reduces the risk of exceeding the proper inflation pressure. The design reduces the potential for damage to plugs and drain, waste and vent systems. If the recommended pressure is exceeded, the excess is released, returning the plug to its proper size and pressure. The relieved pressure exhausts though the top of the plug and not into the test area.
CIRCLE 132 ON INQUIRY CARD