Resideo MX128LF Valve 326058-757 The needle valve should be

The needle valve should be closed

Robust Field Integration: Includes a mounting bracket and 1/8-inch NPT connections for standard installation in commercial pneumatic control loops

as a 5-ton high-capacity valve

this industrial coupler provides the necessary conductivity and physical stability required for demanding boiler and furnace applications

Resideo MX128LF Valve 326058-757 The needle valve should beThe Resideo MX128LF is a heavy duty 1 1 4 inch lead free thermostatic mixing valve engineered for high capacity domestic hot water and hydronic heating systems. Designed for master mixing applications, this large flow mixing valve provides precise temperature control across a 110F to 150F range, making it a standard choice for mechanical contractors managing commercial plumbing systems. The MX Series utilizes a proportional valve with a thermostatic