Flanged joints, flanges and / or valves due to frequent and prolonged use are prone to leakage either seal, bolts, screws or the body thereof. The leak without suspending the operation consists of the installation of retaining rings STIN® designed to completely eradicate the leak with a tenacity to operate at pressures from vacuum up to 200 kg / cm2 , -35 ° C to 950 ° C.

STIN® Rings are formed by two crescents of carbon steel or as required, according to the type of fluid to handle; with injection port for supplying sealing compounds and clamping bolts; to achieve a perfect tightness.