This valve is typically used in air handling units on heating or cooling coils, and
fan coil unit heating or cooling coils. Some other common applications include
unit ventilators, VAV box re-heat coils and bypass loops. This valve is suitable
for use in hydronic systems with variable flow. Bronze and stainless steel trim
valves can be used for steam applications, depending on actuator and close-off
combinations.
- Service - chilled or hot water, up to 60% glycol,
steam
- Flow Characteristic - modified equal percentage
- Controllable Flow Range - stem up - open A to AB
- Size [mm] - 1.5" [40]
- End Fitting - NPT female ends
- Body - bronze
- Stem - stainless steel
- Stem - Packing EPDM O-ring
- Seat - bronze
- Plug - brass
- Body - Pressure Rating [psi] ANSI 250
- ANSI Class - ANSI 250 (up to 400 psi below 150 DegreesF)
- Max Inlet Pressure (Steam) - 35 psi (241 kPa)
- Media Temperature Range (Water) - 20 DegreesF to 280 DegreesF [-7 DegreesC to 138 DegreesC]
- Media Temperature Range (Steam) - 32 DegreesF to 280 DegreesF [0 DegreesC to 138 DegreesC]
- Maximum Differential Pressure (Steam) - 20 psi (103 kPa)
- Max Differential Pressure (Water) - 35 psi (241 kPa)
- Rangeability - 100:1
- Cv - 28
- Leakage - ANSI Class VI
- Servicing - repack kits available
- 90 in-lbs (10 Nm) min. torque. 50% more than original NF
- New smaller housing for tight spaces, plus reduced shaft-center to edge distance: 1.25" compared to 1.97" with
today's NF
- Improved motor run time
- Improved spring return time
- Manual override is now standard on all models. Provides same benefits as AF Series; faster installation and easier maintenance of equipment with lock-in place switch
- Universal power supply (on/off models only) can accept 24 up to 240 VAC. One actuator for all power supply voltages, ideal for customers with limited storage space
- Built-in mechanical limit stop