Electric Actuator
Introduction
Pratt Industrial designs and provides high quality actuators and services related to valve automation. • Our many years of experience in the automation field enables us to launch our EQ series electric actuator which has compact size, robust construction, reliable performance and ability to integrate fully into sophisticated control systems.
Features
• Compact and robust construction, lightweight while providing high output torque (Max 79,500in/lbs).
• Wide range of torque variation (From min 800in/lbs to max 79,500in/lbs).
• Hard anodized aluminum housing inside and outside with external powder coating for use against severe industrial environment.
• Enclosure uses radial seals & O-rings that provide protection to waterproof IP67 (NEMA 4 & 6) and optional watertight IP68
• Dual mounting base ISO5211 standard and KV standard.
• Removable drive bushing for easy machining and mounting.
• Self-locking provided by double worm gearing (no brake required).
• Auto-declutching manual override handwheel with padlockable auto/manual switchable lever.
• Reliable Mechanical Torque sensing system providing safe operation in overload condition.
• Large size window and indicator provides better position indication from a distance.
• Number of Local Position Control options to provide easy commissioning and field operation.
• Digitalized control component.
Construction
Housing • Hard anodized Aluminum casting and external epoxy powder coated housing for use against severe industrial environment. Gearing
• Precisely machined double worm gear with minimum back-lash, low noise, and high output torque. Self-locking
• Provided by double worm gearing to keep position of valve unchanged against reverse torque from valve. Sealing
• By using o-rings in all interfaces IP67 (standard), and double o-ring for IP68 (option). Handwheel
• Different sizes depending on actuator torque, includes knob on handwheel for easy operation. Motor
• Specially designed induction motor to generate high starting torque and high efficiency with thermal protector to prevent damage from over heating.
• Insulation class F
Technical Information
Local Control
LP4 for 1 & 3 Phase (EQ 0100-9000) Control power: Free Voltage (85-265VAC), 50/60Hz, Option 24VDC Magnetic selector switches, SMPS (Switching Module Power Supply)
• Open/Close & Local/Stop/Remote Local Lamp Indication:
• Power – White(on), Remote : Blue(on)
• In case of Close Torque Switch Trip – Yellow(on) + Green (flickering : only at Local Position)
• In case of Open Torque Switch Trip – Yellow(on) + Red (flickering : only at Local Position)
• Full Close – Green(on), Closing – Green(flickering : only at Local Position)
• Full Open – Red (on), Opening – Red (flickering : only at Local Position) *Options Available: PK, CT, RPC(Modulating), IP68, Explosion proof LM4 for 3 Phase (EQ 0100-9000)
• Including the same functions as LP4
• Reversing electric contactors, Transformer
ICM1 for 1 & 3 Phase (Integral Control Module) (EQ 0160-9000) Main power : 3Ph / 220/380/440 VAC; 1Ph / 1110/220 VAC Control power : 24 VDC (Internal Power) • Option : 110 VAC, 220 VAC (External Power) Magnetic selector switches
• Open/Close & Local/Stop/Remote Reversing electric contactors, Transformer, Phase Detector Auto-Phase Discriminator Local Lamp Indication:
• Power – White(on), Remote : Blue(on)
• In case of Close Torque Switch Trip – Yellow(on) + Green (flickering)
• In case of Open Torque Switch Trip – Yellow(on) + Red (flickering)
• Full Close – Green(on), Closing – Green(flickering)
• Full Open – Red (on), Opening – Red (flickering) Single & Reverse Phasing : (Yellow + Green + Red) all flickering *Options Available: Explosion proof, IP68
ICM2 for 1 & 3 phase (integral with LCD Display) (EQ 0160-9000) Including the same functions as ICM1 Reversing electric contactors, Transformer Auto-Phase Discriminator, LCD Display *Options Available: CT, RPC(Modulating), Explosion Proof,IP68, Bus Communication
ICM3 for 1 & 3 phase (integral with LCD Display/IP68 Enclosure) (EQ 0160-9000) Including the same functions as ICM2 Reversing electric contractors, Transformer, Auto-Phasing Discriminator, LCD Display, IP68, Explosion Proof, RPC(Modulating), Bus Communication, 34pins separate compartment for terminal block
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