Conbraco 17-402-04 Relief Valve Check your specific furnace model

Check your specific furnace model number against technical data

ensuring accurate superheat control even in systems with high pressure drops across the evaporator

00" WC to match original factory specifications for Dunkirk Q90-100 systems

Broad Compatibility: Supports field mounting on a wide range of Schneider Electric and legacy Barber Colman globe valves sized up to 2 inches

ensuring the flame remains precisely positioned to satisfy the safety circuit

Conbraco 17-402-04 Relief Valve Check your specific furnace modelThe Conbraco 17 402 04 Relief Valve is a high capacity, pressure only safety device engineered specifically for hot water heating boilers and hydronic systems. Featuring a rugged cast bronze body and a 3 4 inch MNPT inlet x 3 4 inch FNPT outlet, this ASME Section IV certified valve is factory set to 150 PSI. It provides critical protection against thermal expansion, supporting systems with a discharge capacity up to 934,000 BTU HR. Designed for