Couplings production

The double bell FLOWTITE couplings are manufactured on the continuous winding equipment and under the corresponding strict control procedures as the pipes. The coupling pipe process is tailor made in order to manufacture the coupling laminate, which is specifically designed to fit the two grooves for the lip gaskets. The grooves are grinded in a separate operation after manufacturing of the base coupling pipe. The coupling is cut to the required length during the grinding operation.

Every coupling is pressure tested with water to two times the operation pressure before the coupling is mounted to the pipe.