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The Emerson Alco 053003 (Model STAS-487T) is a heavy-duty liquid line filter drier designed for high-capacity commercial refrigeration and air conditioning systems
The externally equalized 1/4" ODF connection allows the valve to reference actual pressure at the evaporator outlet
typically part number 1751-013
Wide Operating Range: Covers a temperature span from -4°F (Cold Off) to 38°F (Warm On)
this straight pattern TRV provides the reliability required for modern radiator valve replacement and new installations
Watts 0274513 Relief Valve 318518-761 The Emerson Alco 053003 (ModelThe Watts 0274513 is a heavy duty ASME Section IV certified boiler pressure relief valve designed specifically for hot water heating systems and domestic supply boilers. This Watts 174A 3 4 50 model features a 3 4 inch FNPT inlet and outlet with a fixed pressure set point of 50 PSI. Built with a rugged bronze body and a stainless steel spring, it delivers a high discharge capacity of 950,000 BTU hr to prevent catastrophic equipment failure during
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