Approvals Accessories Displacer Controllers Displacer Switches External Caged B73 Flanged Ext. Cage High Pres. Disp J52 Level Switch Model B25/C25 Model B40 Series 3 ASME B31.1 Series 3 ASME B31.3 Series 75 Float Level Switches Flow Switches Guided Wave Radar Magnetic Level Indicators Magnetostrictive Pulse Burst Radar RF Level Controls Software Thermal Dispersion Ultrasonic Contact Ultrasonic Non-Contact Vibration Switches     Search by Name Try using our advanced search to find a product.

J52 Refrigerant Level Switches Model J52 external cage level switches are float-actuated units designed for use on refrigerant liquids with 0.60 specific gravity and above. Literature Select Your LanguageUK EnglishUS English Additional Tools:            Measurement Principle: The buoyancy force of a process liquid on the float causes the float to move with the liquid surface. The movement of the float moves an attraction sleeve into the field of the switch magnet, pulling the magnet toward the sleeve and actuating the switch. Features: Temps. from -50° to +100° F (-46° to +38 °C) Max. working pressure to 300 psig (21 bar) Housing is completely sealed against entrance of moisture Conduit seal with 24 in. (610 mm) lead wires Welded float chamber assembly Vibration resistant switch mechanism Applications: Ammonia Freon Methyl chloride Sulphur dioxide Options: Mercury or dry-contact switches available 3/4 inch NPT or 3/4 inch socket weld connections Housing choices of NEMA 4X steel, NEMA 4X/7/9 explosion proof, and NEMA 4 transparent Lexan®