BASO H91DG-12C REVB Gas Valve 30067439-890 The Parker 78009 Coil is

The Parker 78009 Coil is a precision-engineered H23 series solenoid coil designed for reliable actuation in demanding HVAC and industrial refrigeration systems

It is designed to slide onto the existing pilot valve tube of the Ranco assembly

this SPST (Single Pole Single Throw) component serves as a critical safety limit

It is built to the same specifications and replaces the legacy pilot burner assembly found in many natural gas water heaters

Contractors should verify the water column rating on the existing failed switch to ensure a 27W17 Lennox cross-reference matches the specific pressure requirements of the heat exchanger

BASO H91DG-12C REVB Gas Valve 30067439-890 The Parker 78009 Coil isThe BASO H91DG 12C REVB Gas Valve is a heavy duty, 2 wire electrically operated shut off valve designed for precise gas flow regulation in high demand heating applications. This 1 2" NPT automatic gas valve serves as the direct H91DG 12 replacement, featuring an updated electrical connection modificationtypically involving 30 inch leads or a conduit DIN connectionto ensure secure integration with modern control boards. Engineered for a 25V AC signal