Weil McLain 510-811-641 Valve THPU32HP7Y System Protection: Acts as a

System Protection: Acts as a primary safety limit to shut down combustion if flue gas temperatures exceed safe operational thresholds

It retains the same 3/4" pipe size and 24VDC electrical requirements for a drop-in fit

Check the nameplate on your ASCO valve

it provides a standard 4-20mA analog output

reducing compressor head pressure

Weil McLain 510-811-641 Valve THPU32HP7Y System Protection: Acts as aThe Weil McLain 510 811 641 Combination Gas Control Valve is a critical replacement component engineered for high efficiency hydronic heating systems. This 24V gas valve features a 3 4" x 1" NPT connection, specifically designed for thermopile only ignition systems where standing pilot reliability is paramount. Built for precision manifold pressure regulation, this Honeywell sourced gas valve ensures stable BTU input and consistent flame rectification