For veteran technicians and contractors requiring a reliable pressure sensing solution

making it compatible with most standard HVAC control systems

Enhanced System Reliability: Specifically designed for outdoor coil circuits to withstand harsh environmental exposure

Built with a single-pole double-throw (SPDT) switch configuration

maintaining the HVAC system efficiency required in commercial and industrial cooling applications

Belimo B351 Valve R-448A For veteran technicians and contractorsThe Belimo B351 is a high performance 2" 3 way characterized control valve engineered for precision in hydronic HVAC systems. Featuring a 68 Cv rating and a robust nickel plated forged brass body, this valve is designed to handle chilled or hot water up to a maximum temperature of 250F and is compatible with glycol solutions up to 60%. The stainless steel ball and stem provide superior durability and chemical resistance, ensuring reliable operation in