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Emerson Climate Technologies
279
Temperature Pressure Controls
Nomenclature example:FF444-V2-DRF
FF444 V2 D R F
Industrial
Pressure
Control
Lower Switch
PointRange
Upper Switch
PointRange
SmallestDifferential@
Lower-HigherendofRange
Standard
Settings
ValveDesign ResetType Pressure Connection
D = Diaphragm A = Auto
R=Manual,
Locking on
PressureRise
A=7/16”-20UNFmale
F=1/4”-18NPTF
V4
6-217psig
0.4-15bar
15-232psig
1-16bar
9-14psig
0.6-1bar
58/174psig
4/12bar
V5
12-435psig
0.8-30bar
29-464psig
2-32bar
17-29psig
1.2-2bar
145/290psig
10/20bar
TheFF444IndustrialPressureControlsaregeneralpurpose
switchessuitableforoil,waterandairatpressuresupto465psig.
Typical Applications
• IndustrialPressureControl
• PneumaticandHydraulicSystems
• OilLubricationSystems
• Pump/CompressorControl
Features
• SPDTsnap-actioncontacts
• Independentadjustableupperandlowerswitchingpresures
• Diaphragm-typecontrolforlowpressureapplications
 (BunaNdiaphragm):
 • resistanttomineraloils
 • mediumtemperaturesupto160°F
• Transparentpolyamidehood–U.V.resistant
• SurfacemountedType4enclosure
• Optionalmanualresetlockingonpressurerise
Options
• Optionalmanualresetlockingonpressurerise
Specifications
• Controlcircuitrating: 5A(B300)
• Ratedvoltage: 300VACmaximum
• Ambientoperatingtemperature: –10°Fto+120°F
• Mediumtemp.atpressureelement: +160°FMax.
• Resistancetovibration: (4Hzto1000Hz)4g
• Weight: 1.1lbs.
• UL/CULlenumber: E85974
Dimensional Data (in)
Description 120VAC 240VAC
Maximum motor
rating single phase
1/2hp 1-1/2hp
Motor rated, FLA 10A 10A
Motorrated,LRA 60A 60A
Ordering Information
PCN Description
097311 FF444-V4-DAF
097379 FF444-V4-DRF
-
+
Pressure
SPDT
Switch Contacts
4
2
1
FF444 Industrial Pressure Control