screw holes

Internal 10K Ohm Sensitivity: Optimized for municipal water and general-purpose conductivity sensing

Prevents Thermal Cross-Flow: Restores the check valve’s ability to prevent hot water migration into cold lines during high-differential pressure events

The Allanson 542A is a high-performance constant duty gas ignition transformer engineered for field-tested reliability in commercial and industrial combustion systems

Technicians typically observe a burner stuck in permanent low fire or a "jammed" valve condition that trips the high-limit switch

Johnson Controls V48AF-2 Regulating Valve THPU32HP7Y screw holesThe Johnson Controls V48AF 2 is a heavy duty three way pressure actuated water regulating valve designed specifically for large scale condensing units. Built with a rugged cast iron body and a 1 1 2 inch NPT connection, this valve is engineered to maintain stable refrigerant head pressure by modulating water flow between the condenser and the bypass line. It features a normally closed side range of 145 to 190 PSI, making it ideal for high pressure