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) 50-60hzPower 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 indicatorDigital 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 interfaceEmergency & 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
Solutions
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