Caleffi Z55 Motorized Zone ValveThe Caleffi Z55 Motorized Zone Valve delivers precise zone control for heating and cooling systems. This 2 Way valve, with a 3 4 inch nominal size, uses soldered end connections and a spring return electric actuator for reliable, automatic operation. Designed for hot and chilled water applications, it features a brass body, stainless steel stem, EPDM seal and paddle, and a machined brass seat for tight shutoff. The valve is normally open (NO) and

keeping your system running smoothly and safely

Vent Connection: 3/8 inch threaded

efficient operation of your residential oil burner

Designed for peace of mind

Type Probe Assembly designed for easy integration with the PCA3 portable combustion analyzer

Durable steel housing for long service life

5 inches high

this relay fits standard control panels and aligns with common power layouts

Designed to handle high-temperature environments

reducing downtime and preserving system performance

This industrial flame sensor is built for harsh environments

Allanson Transformers 421-BT387 is a 120 Volt Primary 10k Secondary Replacement Ignition Transformer designed for dependable ignition in heating and appliance systems