Willoughby PML1 and PSL1 Single Temperature, Lead-free, Pneumatic Valves are water control valves for use with plumbing fixtures in security, commercial, and healthcare environments. Pneumatic control valves can be specified in either Metering (PML1) or Non-metering (PSL1) configurations.
Standard PML1 and PSL1 valve assemblies are made from components complying with NSF-61, and will typically come with selected stainless steel push button(s), pneumatic tubing and fittings, and associated plumbing connections. The valve assembly is designed for operational pressure between 35-70 psi (90 psi max.), recommended with a max. operation temperature of 110° Fahrenheit, and supplied with an appropriate flex hose (1/2” F.P.T.) to connect to the operational water supply. Flex hose is supplied standard unless otherwise specified.
Both the PML1 and PSL1 valve assemblies can be supplied with a variety of optional features including: flow control, push button(s), thermostatic mixing valve, etc. A galvanized mounting plate is provided for secure anchoring of the valve assembly (anchoring hardware by others).