Pros, Join Our TradeMaster Program!
Description
The Honeywell NK300S Boiler Feed Combination serves as a boiler fill valve used in closed loop heating systems. The NK300S is a (re)filling combination valve that contains an integrated pressure reducing valve, strainer, double check backflow preventer with air vent (to protect potable water supply against back flow of heating water into supply pipe), two shut-off ball valves, pressure gauge, and conveniently located test ports for easy inspections and check out.

Product Features
  • Optimal protection of the potable water supply system
  • Pressure reducing valve with inlet pressure balancing - inlet pressure fluctuation does not influence the outlet pressure
  • Outlet pressure adjustable and directly visible on the pressure gauge
  • Low maintenance effort - cartridge insert and valve insert are completely replaceable
  • Includes: Boiler fill shut off valve, double check backflow preventer with air vent and discharge connection, valve cartridge, integrated 200 micron strainer, a check valve, pressure reducing valve with valve insert, adjustment spring, and pressure gauge
Read more
Specs
Size:
1/2"
Max Pressure (PSI):
150
Min Pressure (PSI):
30
Connection Type:
Sweat x Sweat
NPT x Sweat
Sweat x NPT
NPT x NPT
Material:
Brass
Max Temp (F):
140°F
Application:
Water
×
Questions?
Speak with a real person who will go out of their way to help!
Special Hours
Our Customer Support is closed today. We will be back on Monday to answer your questions. Have a great weekend!
Closed Now: Phone Hours
Monday – Thursday
8am–7:45pm ET
Friday
9am–7:45pm ET

Product Reviews

Product Q&A

Add-on Item

This item is cost-prohibitive to ship on its own but is available to ship with orders over $200.

Why don't we show the price of this item?

We try to always offer you the lowest prices possible, but some manufacturers require that we only show these low prices once you take further action.

To see the price, simply add the item to your cart or sign in.