such as pump starts or boiler firing

What media is this 3" Bray S31 valve suitable for

specifically sizes 25 through 165

As a genuine Lochinvar part

Field Reliability: Built with robust contact points to resist welding and pitting during high-frequency cycling in refrigeration repair scenarios

Resideo TH141HC-28-B Programmable Thermostat 319847-401 such as pump starts orThe Resideo TH141HC 28 B Programmable Thermostat is a high precision solution for technicians managing 24 Vac heating and cooling systems. Engineered for 1 Heat 1 Cool conventional systems, this vertical mount unit features a 1F ( 0. 5C) differential to eliminate wide temperature swings and short cycling, which preserves equipment life. The 7 day programmable interface resides behind a flip out panel, allowing for four distinct time and temperature