The P47 controls are available with SPST, DPST, or 4-wire, two-circuit contacts for line voltage or low voltage. The pressure connector is 1/4 in. male NPT (0-15 psig only) or 1/4 in. female NPT (for all other ranges).
Features
Long-life contact structure with high contact force.
Easy-to-adjust single sight set scales show both cut-in and cut-out settings.
Applications
P47 steam pressure controls are designed for high limit or operating control applications. A typical use is as a limit control on steam heating systems. models that close on a pressure increase are used on steam unit heaters to avoid blower operation when steam pressure is below the point required for adequate heating. The P47 can be used with steam, water, air, or noncombustible gases that do not harm iron or copper.
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