427-033

This premium 1/2" x 1/2" single stage slow opening gas valve is a critical replacement component for modern heating systems. Designed for use with Hot Surface Ignition (HSI) and Direct Spark Ignition (DSI) systems, this valve ensures precise fuel regulation and reliable burner performance. The 'slow opening' feature provides a soft ignition by gradually increasing gas flow, which helps reduce startup noise and prevents mechanical stress on the heat exchanger. Whether you are performing routine HVAC maintenance or repairing a non-functional furnace, this high-quality gas control valve offers the durability and safety required for residential and light commercial forced-air furnaces. It is engineered to manage gas flow efficiently, ensuring your heating equipment operates at peak performance during the coldest months.
Type: Gas Control Valve
Size: 1/2 inch NPT
Application: Used in forced-air furnaces and residential heating systems utilizing Hot Surface Ignition (HSI) or Direct Spark Ignition (DSI) setups.
Specifications: Single-stage operation; Slow-opening safety feature; Compatible with HSI/DSI ignition systems; 1/2" inlet and 1/2" outlet connection sizes.