Products are under strict quality control at every manufacturing stage. Final products undergo obligatory strength test.

Ростест All the GVINCH TM products are certified according to the Russian system of standards Rostest and has GOST R certificate.

ISO 9001 The manufacturing of ball cocks by GVINCH TM is certified according to international quality management standards ISO 9001. The GVINCH TM products meet the European CE requirements.

Civil liability is insured by limited liability company «Renaissance Insurance Group».


The warranted service-life for GVINCH ball cocks is not less than 10 thousand cycles “open-closed”.

The lifetime of GVINCH trade mark products is more than 30 years provided observance of rules concerning mounting and maintenance.

The warranty period for all the products is 1 year.