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QT-250-MIL Electric Valve Actuator

from Eltorque

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QT-250-MIL

NAG-QT250-SS-440-A

The NAG Marine QT250-SS-440-A is an electric valve actuator based on permanent magnet technology. These Navy-type valve actuators feature 440V AC input power, stainless steel housings, and 4-20ma analog interface with local/remote control indication. The NAG Marine QT250-SS-440-A is 100% software configurable with no mechanical adjustment required.

 

The NAG Marine QT250-SS-440-A is an ideal solution for small to medium sized butterfly and ball valve control requirements with an operating torque range of 36-185 foot-pounds (250Nm max).

 

NAG Marine QT-MIL Series electric valve actuators are designed to be maintenance free, and feature completely enclosed, permanently lubricated transmissions to ensure extended reliable service in the harshest operating conditions.

 

Built to DOD-V-24657 Standards.

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About QT-250-MIL

 Features

Downloads

  • 250 Nm max torque
  • Designed for butterfly and ball valves
  • Stainless steel housing
  • Easy installation/retrofit
  • User-configurable torque, closing time, & position
  • Permanently lubricated
  • Low power consumption
  • Manual override

 

  • + Technical Specifications

    Torque 36-185 ft/lbs (250 Nm max.)
    Valve Stem Connector See notes
    Valve Applications Butterfly & ball valves with partial turn operation (typical)
    Valve Flange See notes
    Min-Max Closing Time 0-100% / 0-90° 13-60 sec
    Mechanical
    Dimensions (H x W x D) 9.01 x 6.14 x 8.22-in (229 x 156 x 209-mm)
    Weight 26.5 lbs (12 kg)
    Housing Corrosion proof, Stainless steel
    Operating Temp -13° to 131°F (-25° to 55°C)
    Over Temp Protection Motor current turned off
    Under Temp Protection Stator coils maintain internal temperature
    Electrical
    Supply Voltage 110-240V AC (single phase) 50-60Hz or
    440-460V AC (3 phase) 50-60hz
    Power Consumption Max: 240W/560 VA, Standby: 14W
    Connectors
    Power MIL-DTL-5015 series
    75-474214-02P, 4-pin connector
    Actuator housing includes threaded mounting holes
    Control Interface
    Analog Version Close signal: 20Ma
    Open signal: 4Ma
    Local remote control: Indicator on actual control panel
    Master alarm with current output for control system
    Valve position feedback: isolated 4-20Ma, external 24V DC required
    Local control panel stop button with integrated indicator
    Digital Version Close signal: dry contacts
    Open signal: dry contacts
    Open indicator output: dry contacts
    Close indicator output: dry contacts
    Valve position feedback: isolated 4-20Ma, external 24V DC required
    Valve travel indication: both open and close indicator lights lit during travel
    Local/Remote control: integrated indicator light on actuator
    Local stop button: integrated indicator light on actuator Summary alarm output, dry contacts provided
    Valve Position Sensor Absolute position sensor, provides correct feedback even after power failure
    Resolution 0.39% / 0.35° & 360° range
    Configuration & Set-Up USB connection to PC with software Configuration Manager v.3
    Configurable Parameters Valve type
    Open & Closed positions
    Speed, torque, valve position, valve seat region position
    Inverted I/O or fieldbus parameters depending on control interface
    Emergency & Safety
    Manual Operation Standard fixed hand wheel, mechanical valve-position indicator
    Appx. Turns
    21 - 0-100% / 0-90°
    Certifications
    Shock MIL-STD-901D (Navy)
    Vibration MIL-STD-167-1A
    Electromagnetic Interference (EMI) MIL-STD-461F

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Fax: 757-852-9007

Email: sales@nagmarine.com

 

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