Protective stopper for pipe couplings - has pot-shaped first area with two further areas and ring collar for contacting clamping sleeve in coupling body and preventing entry of dirt.

摘要

The stopper (4) has a first area (12) for contacting the clamping sleeve (3) inserted in the coupling body (2), a second area (13) accessible from outside when the first area is in the contact position, and a third area (14) which can contact the coupling body (2). The first area is pot-shaped and the second area is fixed at the base of this pot-shaped area. The third area is fixed on the outer edge of the pot-shaped area. The third area can have a ring-like collar (18) which fits near the open end of the pot-shaped area and whose outer circumference is adjoined by a sleeve like area pointing towards the closed end of the pot-shaped area. At least one of the three areas is made of elastic material. USE/ADVANTAGE - For closing coupling assemblies attached to the suction connection of a pump used for anti-blocking systems. Easy fit and dismantling preventing dirt entering the coupling.