This Apollo water gauge is a critical component for ASME boiler code compliance in steam plants and process vessels

it maintains the appliance's safety listing and operational integrity

Can I use this for pilot flow applications

Durable Construction: Engineered with robust materials to resist diaphragm fatigue and terminal corrosion over long service cycles

If your technical manual lists part number 025-30440-000

Nordyne 620859R Transformer 324846-701 This Apollo water gauge isThe Nordyne 620859R Transformer is a heavy duty step down transformer engineered specifically for Nordyne HVAC equipment, providing stable low voltage power to essential control circuits. This OEM 240V transformer features a 208 240V primary input and a 24V secondary output, rated at 30VA capacity. As a critical component for system communication, it ensures that your thermostat, relays, and integrated furnace controls receive the precise voltage