Armstrong 77W04 Gas ValveThe Armstrong 77W04 valve gas (2 Stg Nat) delivers precise natural gas control for demanding installations. This two stage gas valve provides smooth startup, tight shutoff, and reliable regulation across fluctuating pressures. This valve is built for reliability in challenging environments, delivering consistent performance across pressure variations and temperature swings. Engineered for industrial gas valve applications, the 77W04 offers rugged

Single-level temperature control with silent operation

with a compact design that fits tight spaces

compact footprint for tight spaces

It serves as the primary flame rod in VB/VW 500/750/1000 boilers

compact control is built to deliver reliable shutoffs and blower cycling when temperatures reach the set limits

reduced maintenance

Compatible with two-inch pipe systems and designed for oil applications

It operates at 2 PSI for liquid propane and 5 PSI for natural gas

Suction height: 6" single pipe

making it ideal for homes with mixed systems

offering a straightforward replacement part for aging valves

eco-friendly choice that meets modern safety and environmental standards