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Valves & Actuation

Series 19 Modulating Failsafe


Series 19 Smart SAV Modulating Failsafe Electric Actuators

The Series 19 modulating failsafe combines the features of a modulating unit with the reliability of a failsafe unit. With all of the same features of the modulating unit, the modulating failsafe employs a capacitor discharge design for the failsafe ability. When the power supply is lost, the failsafe system will cycle the valve to a predetermined position (open, closed, or as is).

AIA FindUsIn MasterSpec Deltek Specpoint 2c full CMYK 01

Button CAV On Off

Button CAV Fail Safe

Button Smart On Off

Button Failsafe

Button Modulating

Button Mod Failsafe

Multiturn On Off 01

Multiturn Modulating 01





New Modulating Fail Safe

Series 19 SAV Modulating Failsafe Valve/Actuator Packages

Ball Valves

Butterfly Valves

Series 19 on Type 21 Series 19 on Type 23 Series 19 on Type 57P
Button Type 21 Button Type 23 Button Type 57
Ideal Applications Include:

Remote locations, locations with no air supply, colder temperatures, smaller valves, low cost applications


S20, S50, S110, S400

Amp Draw:

0.34 Amp for S20, 0.39 Amp for S50, 1.24 Amp for S110, 1.83 Amp for S400

Cycle Time:

Per 90 degrees: 10 seconds


177 in-lbs to 3540 in-lbs

Electrical Connection:

NEMA 4X cable gland with two-meter color-coded cable




95 VAC to 265 VAC 1Ph 50/60 Hz

24 AC/DC

Max Temp:

150° F


  • Compact: Perfect for OEM and skid manufacturers
  • OLED Screen: Displays input command, position status, alert conditions
  • Push Buttons: Used to calibrate/adjust end positions and operate local controls
  • Multi-voltage: 95 VAC to 265 VAC or 24 VAC/VDC
  • Motor: Reversing, brushless DC motor
  • Gear Train: Permanently lubricated steel gears
  • Corrosion Resistant Enclosure: NEMA 4X enclosure with stainless steel trim
  • ISO mounting configuration
  • Electrical Connection: NEMA 4X cable gland with two-meter cable length
  • Position Indication: Highly visible beacon position indicator
  • LED Position Indication: RED closed, GREEN open, BLUE fault
  • Manual Override: Manually cycle valve via electroless nickel-plated hex key
  • Selectable Control Signal: User can select 4-20 mA, 0-20 mA, 0-10 VDC, 2-10 VDC, or 1-5 VDC (size 20 is specifically a current control signal or a voltage control signal)
  • Reverse Acting: User can select standard operation or reverse acting
  • Selectable Fail Position: If control signal is lost, the unit can be calibrated to fail as is, fail open, or fail close
  • Transmitter: Current or voltage transmitter (matching the control signal) is standard equipment
  • Capacitor Discharge System: A capacitor is used in place of batteries for failsafe mode
  • QR Code: Links to user manual; includes wiring schematic
  • RoHS Compliant


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