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), (2) shut-off ball valves, pressure gauge, and conveniently located test ports for easy inspections and check out. All the needed devices for refilling a heating system are contained.
Honeywell Combination Boiler Feed Valve, NK300S Series, 1/2 in Nominal, 10 to 58 psi, 16 gpm Flow Rate, Brass Body, EPDM/NBR Seal, EPDM/NBR Trim, EPDM/NBR Softgoods, 33 to 140 deg F, 7.48 in H, Domestic/Import: Domestic
Series | : | NK300S Series |
Nominal Size | : | 1/2 in |
Pressure Rating | : | 10 to 58 psi |
Flow Rate | : | 16 gpm |
Body Material | : | Brass |
Seal Material | : | EPDM/NBR |
Trim Material | : | EPDM/NBR |
Softgoods Material | : | EPDM/NBR |
Temperature Rating | : | 33 to 140 deg F |
Dimensions | : | 7.48 in H |
Domestic/Import | : | Domestic |