Push the flange onto the pipe with clamping ring (2), pressure ring (3) and rubber sleeve (4). Push the complete flange up to the mating flange (5), with the rubber sleeve (4) and the pressure ring (3) protruding by approx. 10 mm beyond the pipe end. Tighten screws crosswise until the joint is tight.
Caution: Do not use any additional flange seals.