Weil McLain 510-811-655 Valve Kit 30067439-890 the signal should scale linearly

the signal should scale linearly from 0V at 0 PSI to 10V at 500 PSI when compared against a calibrated mechanical gauge

This galvanized 10-pack simplifies inventory for contractors

Built for internal evaporator coil applications

this model is specifically optimized for R404A/R507

the three stages engage sequentially at equidistant voltage points to provide proportional heating capacity

Weil McLain 510-811-655 Valve Kit 30067439-890 the signal should scale linearlyThe Weil McLain 510 811 655 Valve Kit is a field proven combination gas control valve engineered for step opening ignition sequences in high efficiency hydronic systems. This 1 2" x 1 2" NPT natural gas valve provides precise pressure regulation, operating from a 0. 9" W. C. low fire setting up to a 3. 5" W. C. high fire output. Designed for compatibility with various Weil McLain boiler parts, this replacement gas valve ensures stable manifold