This GF Piping Systems PVC hand lever butterfly valve with ratchet settings has valve components made of polyvinyl chloride (PVC) for chemical resistance to many mineral acids, bases and salt solutions, and has an operating temperature range of 32 - 176 degrees F (0 - 80 degrees C). It has a double eccentric valve for longer wear and additional protection against pressure surges, and three separate seals for leakage protection. The hand lever is lockable to guard against unwanted changes in flow, and opens and closes the valve in five degree increments for accurate flow control. This PVC hand lever butterfly valve is suitable for water system applications including building services, industrial waste water, and water treatment, among others.
Butterfly valves are used to regulate flow between pipes, tubes, and hoses by rotating a lens-shaped disc in the center of the valve and are suited for high-capacity, low-pressure applications. When the valve is fully opened, the disc face is parallel to the inlet and outlet of the valve, and when the valve is closed, the disc face is perpendicular to the opening of the valve. Butterfly valves may have a handle or lever that aligns with the disc position (open or closed) for manual flow control. They are primarily used in applications including agriculture, water treatment, fire protection, compressed air or gas, and vacuum service.
GF Piping Systems manufactures piping components and systems for gas and water distribution. The company, founded in 1802 and headquartered in Schaffhausen, Switzerland, meets International Organization for Standardization (ISO) standards 9001:2008 and 14001:2004.