Automatic Response: Protects against siphoning and "implosion" by opening at vacuum levels under 0

Replacing rusted or warped burners with a genuine gas boiler replacement burner like the 512-200-055 prevents common issues such as delayed ignition

Key Benefits Direct OEM Compatibility: Precisely matches Lochinvar 100109424 and A

Precise Proportional Control: The 3-7 psi nominal spring range allows for accurate positioning throughout the full damper stroke

0 valve bodies

ASCO SC8551A17MS Spool Valve R-134A Automatic Response: Protects against siphoningThe ASCO SC8551A17MS 1 4" Spool Valve is a premier 4 way, 5 port, 2 position solenoid valve engineered for superior performance in complex pneumatic systems and industrial automation. Operating at 120V, this high performance valve features a unique T seal spool design that provides reliable, leak tight operation and bubbles tight shutoff. Built to withstand the rigors of heavy duty environments, the SC8551A17MS is optimized for fluid and gas flow