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NAG - Model QT-50 -Quarter Turn Marine Electric Valve Actuator
Easy-Install, User-Configurable Electric Quarter-Turn Valve Actuator for Butterfly & Ball Valves. The QT-50 is the most compact member of our Quarter-Turn Series. With an operating torque of 50 Nm, the QT-50 is ideal for use with butterfly and ball valves from DN25 to DN80. IP68 protection rating and maritime type approval ensures robustness and durability. The QT-50 is designed in line with Eltorque`s Lifelong Intelligent Control Philosophy, meaning a maintenance-free product with improved functionality and real-time feedback. NAG Marine has designed their Electric Valve Actuators to be maintenance-free and feature completely enclosed, permanently lubricated transmissions to ensure extended reliable service in the harshest operating conditions.
- Compact Footprint
- Low Power Consumption
- Versatile Communication Protocols
- 50NM of Instant Torque
- Inexpensive and Maintenance Free
- Pressure Measuring Range: Up to 120m (393.7)
- Process Temperature: -196...+ 250°C (-321...+482°F)
- Deviation: ≤ 1 mm
- Process Pressure: -1 to 25 bar \ -100 to 2500 kPa
- Beam Angle depending on antenna: 3°
- Process Fitting: Mounting straps, compression flanges from DN 80, 3", thread from G¾, ¾ NPT, encapsulated antenna system, flanges from DN 50, 2”, flange with swivelling holder from DN 100, 4”
- Ambient, storage, and transport temperature: -40 to +80°C (-40 to +176°F)
Materials
- Wetted Parts: 316L, PP, PEEK, PTFE
- Process Seal: FKM, FFKM, EPDM, or PTFE
- Housing Material: Plastic, Stainless Steel, Aluminum
- Enclosure Rating: IP68 (25 bar)
Electrical
- Operating Voltage: 12 to 35 VDC
- Output:
- Profibus PA
- Foundation Fieldbas
- 4 to 20 mA
- 4 to 20 mA/HART - two-wire
- Modbus
Approvals
- Protection Rating:
- IP66/IP67
- IP66/IP68 (0.2 bar)/IP6
- IP66/68 (1 bar) - acc. to IEC 60529
- Type 4x, Type 6P - acc. to NEMA
- Scope:
- ATEX / Europe
- FM / USA
- IEC / Worldwide
- CSA / USA and Canada
- Explosion Protection:
- Intrinsic Safety "i"
- Flameproof enclosure "d"
- Dust explosion protection through housing "t"
- Overfill Protection:
- WHG
- VLAREM II