Description
The Resideo NK300S-100 Combination Boiler Feed Valve is a must have for closed loop heating systems and keeps the boiler supplied with a constant water supply while keeping pressure. This pressure reducing valve is to be sure that the system is within the correct working pressure range of 58 to 150 PSI and that the boiler and other system components are not damaged by high pressure. This valve supplies water with a flow rate of 16 GPM and helps balance and perform the system. It has a temperature operating range of 33°F to 140°F and is suitable for several different climates. Its small size 7.48″ height and 7.79″ length makes it easy to integrate into existing systems.









