AQUASEAL BUTTERFLY VALVE AQUASEAL BUTTERFLY VALVE
	It is a wafer type butterfly valve, with an integrally moulded elastomer body liner. It is designed to outperform valves with loose liners. The elastomer liner, moulded directly in the body and vulcanized in-situ, ensures that the liner lasts the entire life of the valve.
	AQUASEAL offers a cost effective solution to HVAC systems and is available in sizes from 50mm to 300 mm, for use in water and air services.
	The integrally moulded liner provides a stable seat, which overcomes the tendency of the disc to push the seat out of position. In-situ vulcanizing provides the desired strength to the liner. Plasticiser in the elastomer formulation ensures a smooth surface which minimises the friction between disc and liner. The stable, tough seat, and low operating friction all contribute to extend valve life.
The close interference fit between disc and liner ensures tight sealing at the full rated pressure, with minimal operating effort. The in-situ vulcanizing prevents liner fatique caused by stretching. This reduces operating torque and the tendency for liners to tear and be swept into the line. The elastomer formulation of the liner provides a smooth surface, which ensures low operating torque.
The AQUASEAL body liner has a flat surface at the top and bottom. This flat surface provides a wider seating between the body liner and disc. The secondary sealing is achieved through an integrally moulded "O" ring which gets compressed around the shaft. A weather seal at the top of the shaft prevents any ingress of foreign particles into the valve. A contoured disc ensures a smooth flow with minimum resistance.
AQUASEAL has an integral top platform drilled to ISO 5211 mounting standards which facilitates direct mounting of actuators and gear units. This eliminates the need for a coupling to connect the shaft to the actuator - improving torque transmission.
AQUASEAL has a gasket integral to the body which eliminates the need for a separate gasket between the valve face and companion flange. In addition, as the liner is bonded to the body, it will not hang out or get pinched during installation.