Install Instructions

SF100-HP PRESSURE REDUCING VALVE (PRV)
Pressure reducing valve for automatic control of closed loop boiler make up fluid.
Specifications: Product Number: NR3HRSC
Size: ½” NPT Union
Body: brass
Inlet Connection: ½” FNPT
Dimension (L x H): 5 1/4” x 5 7/8”
Weight (Lbs.): 2.0
Operation:
The SF100-HP PRV valve is factory set for 50 PSI. To change setting, loosen the jam
nut then turn hex head adjusting screw clockwise to increase the set pressure or
counterclockwise to lower the set pressure. When desired pressure is obtained, tighten
jam nut while holding adjusting screw stationary.
Features:
• Max. working water pressure 400psi
• Max. working water temperature 140°F
• Reduced pressure range 15 to 150 psi
• Factory preset 50psi