CLA-VAL 55L-60 : Pressure Relief Valve / Pump Casing Relief Valve

ClaVal

CLA-VAL 55L-60 : Pressure Relief Valve / Pump Casing Relief Valve

The CLA-VAL Model 55L-60 /UL listed, FM Approved) Pressure Relief Valve is a direct-acting, spring loaded, diaphragm type relief valve. The valve may be installed in any position and will open and close within very close presure limits. The bottom plug may be removed and installed in the inlet to convert it to angle pattern flow path. The Model 55L-60 is normally held closed by the force of the compression spring above the diaphragm. When the controlling pressure applied under the diaphragm exceeds the spring setting, the disc is lifted off its seat, permitting flow through the control. When control pressure drops below the spring, the spring forces the control back to its normally closed position. The controlling pressure is applied to the chamber beneath the diaphragm through an internal passage. A gauge port is provided for accurate pressure setting. Pressure adjustment is done by turning the adjusting screw to vary the spring load on the diaphragm. The 55L-60 is available in pressure ranges suited to agency approval tests. To prevent tammpering, the adjustment cap can be wire sealed by using the lock wire holes provided in the cap and cover.

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