eliminating the mechanical failure points and sediment buildup common in traditional float-style devices

managing current loads without the risk of common contact pitting found in lower-quality alternatives

ensuring a seamless fit and immediate restoration of system safety protocols

ensuring the pressure switch closes reliably for consistent ignition cycles

Spartan Valves ME-4430S Actuator Refrigerant eliminating the mechanical failure pointsThis Spartan Valves ME 4430S Actuator is a professional grade 2 way 3 way zone valve actuator designed for reliable on off control in hydronic systems. This model operates on 24VAC power and utilizes a 2 wire spring return mechanism that triggers a fail safe stem up (Normally Open) position upon power loss. Engineered for durability, the ME 4430S features a high strength, glass filled nylon composite housing and an integrated insulating collar that