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HEM多回轉分體型

The HEM series is a new generation of multi-turn electric actuators developed and manufactured by the technical team of Heli based on user needs and years of development experience.

The HEM series can produce a variety of models according to user needs, such as basic, intelligent, bus, intelligent split and other forms, which are safe, stable and reliable to meet different application scenarios in various fields.

HEM series multi-turn electric actuators can be used not only with straight-stroke valves such as regulating valves, venting valves, and stop valves, but also with corner-stroke valves such as butterfly valves, ball valves, and plug valves after installing a part-turn worm gear box.

HEM series direct output torque range is 100N.m-3000N.m, output speed range is 18rpm-144rpm, according to different speeds and different speed ratios, with electric special worm gear box can be converted to greater and more torque requirements.

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HEM-Summary

Multi-turn electric actuator

Available torque range from 100N.M to 3000N.m.

Available speed range from 18rpm to 144rpm.

Designs and controls with basic,intelligent,fieldbus and separated control box to select.

IP67 enclosure protection as standard,IP68,BT4/BT6,CT4/CT6 as options.

Suitable for ball valve,butterfly valve,plug valve,gate valve,globe valve,check valve and regulating valve.

HEM-Advantages

Advance technology

Reliable operation

Heavy duty motor

Accurate torque measure

Continuous position tracking

Real time valve and actuator performance information

Auto self test and diagnosis

Versatile enclosure

Easy maintenance

Hardwired controls and fieldbus communication options.

Asset management

Non intrusive setting

Command/Mode selector switch for remote or local control

Infrared remote control to set and commissioning

Valve and Actuator Protection

Phase monitoring

Protection of change in direction

Motor thermal protection

Torque protection

Emergency shutdown protection

Failure monitor relay

Password protection

Failure Alarms indication

User friendly &intuitive controls

High resolution LCD display(except for basic type)

Local signal

Local commands

User friendly menu

Specificities

1.Double sealing

Two o-rings insure an optimum protection against water ingress into the electrical compartment based on GB/T4942.2-93,IP68 as option.

2.Non intrusive setting

Open/Close/Stop button and LOC/OFF/REM selector switch to achieve the close and open operation at site.

The infrared remote control to set and commissoning the data.

3.Rotatable electrical compartment and LCD display.

Possible to rotate the electrical compartment with LCD display to suit the actuator mounting.

Possible to rotate the direction of cable entries to meet the wiring requests.

The high resolution display has a wide view making it legible from a distance.

4.Heavy duty motor

Squirrel cage motor with built-in 135℃ thermostat protection,low inertia design,Class F insulated.

5.Position measure

Absolute position encoder output the accurate position to show on LCD,there is no position loss due to mains power loss or any interferences.

6.Torque sensor

The torque sensor directly measures output torque and converts value to a voltage signal.Torque of intelligent type can be set in the range 40% to 100% of rated torque with the additional facility to bypass torque switch.

7.Drive train

The drive train uses the basic design with the features of simple,reliable and robust, the components are oil lubricated with maintenance-free.

8.Explosion proof enclosure as option

In accordance with ExdIICT4,atmospheric pressure range from 86Kpa to 106Kpa,ambient temperature range from-30℃ to 60℃.

ExdIIBT4,ExdIIBT6,ExdIICT6 as options.

9.Handwheel and Declutch button

Push the red declutch button to achieve the handwheel operation when emergency or commissioning.

Model meaning

Technical specifications

Intelligent type

Standard Specification	Torque		100-3000Nm(witbout worm gearbox)
	Output Speed		18-144(rpm)
	Ambient Temperature		-30℃-70℃(-40℃-70℃ as option)
	Vibration Resistance		Comply withJB/T8219
	Noise degree		Less than 70u8 witin 1meter
	Cable entries		2XNPT 3/4 pluslXNpT3/4
	Enclosure Protection		IP68 as standard,IP68 as option
	Mounting base		Comply with J82920(claw)or IS05210(Thrust or Torque)
Technical Specification	Motor ratings		Ctass F, with150℃ thermal protection
	Duty rating		ON-OFF:S2-15min, less than 600 starts/hour
			Modulating:S4-50%, less than 600 starts/hour
			Option:1200 starts/hour
	Voltage		Three phase: AC380V(±10%);500HZ(±5%) three phase three wires
			AC220V, AC415V and other voltages as option
	Fieldbus controls		Modbus, Profibus as option; Hart
	ON-OFF	Control signal	ON-OFF signal(dry contact,24V,220V, possible to exchange between inching and keep)
		Feedback signal	6 x relay contacts(5xstate relay +1x faulit relay)
			1 x analogue feedback:4-20mA, output impedance:≤750X2(4~20mA as standard;0-10V,2~10V as option)
	Modulating	Control signal	ON-OFF signal(dry contact,24V,220V, possible to exchange the inching and keep)
			Analogue signal:4~20mA, input impedance:65Q;(0~10V,2~10V as option)
		Feedback signal	6xrelay contacts (5x state relay+1xfault relay)
			1 x analogue feedback:4~20mA, output impedance:≤7500(4-20m4 standard;0-10V,2-10V as option)
		Deadband	0.3-9.9% adjusted within full stroke
		Polarity	Yes
		Signal loss action	Yes
Operation Mode	Indication		LED display
			Open/Close/Remote/Failure lamp(Digital shown in percent for position and torque)
	Menu operation		Remote control or Selector switch
			Configuration set(position, status feedback, Max. torque)
	Local control		Command selector switch(OPEN/CLOSE/STOP)
			Mode selector switch(LOC/REIM/OFF)
	Data logger and diagnostics		Intrared remote control suit menu to access the fauts diagnosis
others	Functions		Automatic phase correcton(3PH only)/Alarms(Local and remote)
			Torque protection/Motor thermal protection/Bypass torque switch
			Space heater/ESD set(Open, Close, Keep)
			Average torque
			Intrared remote control
			Option: Explosion proof intrared remote control

Basic type

Standard Specification	Torque		60-3000Nm(Without worm gearbox)
	Output Speed		18-144 (rpm)
	Ambient Temperature		-30℃-70℃
	Vibration Resistance		Comply with JB/T8219
	Noise Degree		Less than 7dB witin 1 meter
	Cable Entries		2xNPT3/4 pus 1xNPT3/4
	Enciosure Protection		IP67 as standard, IP68 as option(15m under water withoutleakage for 72nours)
	Mounting Base		Comply withJB2920(Claw) or ISO5211(Thrust, Torque)
Technical Specification	Motor ratings		Class F, with 150℃ motor thermal protection.
	Duty ratings		ON-OFF,S2-15min, less than 600 starts/hour
	Voltage		three phase: AC380V(±10%)/50Hz(5%) three phase tour wires
			Option:1PH AC220V
	Fieldbus controls		None
	ON-OFF	Control signal	ON-OFF, built in contact with ratings 5A@250VAC
		Feedback signal	Fuly open/Fuly losed (dry contac)
			open toraue switch/Close torque switch (dry contact)
			Option: with potentiometer
Operation Mode	Indication		Arrow
	Menu operation		None
	Local control		None
	ata logger and diagnostics		None
others	Functions		Space heater
			Torque protection
			Motor thermal protection
			Option: Explosion proof infrared remote control

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