Boig and Hill Inc

http://www.boighill.com/everlasting.html

4060 and 4061 Series(6): Line pressure and heavy spring hold disc firmly against the body seat, sealing of the flow. When operated, the disc slides across the body seat pushing harmful boiler scale away, and wiping clean the precision lapped surfaces.

Our dependable, reliable Customer Service will provide you with the Worcester Control Valves, Worcester Actuators, and Worcester Valve Parts, among other parts from the names you know such as Sprague pump parts, Farris Parts and Flowserve.

http://www.boighill.com/