Actuators with safe function

Control of stop, cut-off or control valves with shutter position in a safe condition when removing power supply

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Actuators with safe function
Characteristics

Designation:

The electric drive is designed to control shut-off, cut-off and control valves with bringing the valve gate to a safe position when the power supply is removed or a command is issued to move into the safe position.

Functions:

• Adjustable by user “normal” state: open, closed, safety position.
• Routine function to implement adjustments at low speeds with high frequency maintenance of the position and fast moving to the safety position at a preset speed.
• Combining a high efficiency gearbox, a highly efficient permanent magnet synchronous brushless motor and an in-built frequency converter allows using an in-built electric power storage unit, which ensures moving the output link of the electric drive to the required position.
• Energy storage in reliable supercapacitors with a double dielectric layer, where the guaranteed number of charge-discharge cycles is 50,000.
• Energy reserve from 1 to 10 travel cycles of the output link depending on the version of the electric drive and valve used.
• Compliance with the requirements of STO GAZPROM 2-4.1-212-2008 in terms of valve overlap time and compliance with the requirements for technological units of the I category of explosion safety in accordance with OPB (Federal Law No. 96 d/d 11.03.2013).
• Maintenance of the energy storage unit is not required during its entire service life.
• Compliance with functional safety standards according to GOST R IEC 61508 and GOST R IEC 61511 at the SIL2 level.

Features and Benefits: 

• A block of supercapacitors built into the shell of the electric drive with secondary power and charge sources;
• Capability to equip a linear or part-turn electric drive with the "NO_NC" block of a standard design;
• High-efficient self-controlled synchronous electric motor with permanent magnets;
• In-built frequency converter;
• Cycloidal gearboxes and gearboxes with intermediate rolling elements;
• Universal control unit for all modifications of electric drives;
• In-built WIFI interface; ready to “Digital Economy”, “Industry 4.0 Ready”;
• Double insulated connection box.

Specifications


Type Linear, part-turn
Valves to be automated  
for all types
Valve diameter
DN 15-400 mm
Version
explosion proof 1ExdIIBT4 Х  
Torque
40 – 2000 Hm 
1000 – 45000 Н
Supply voltage
400 V AC or 230 V AC 
Operating temperature
from -63 to +50 °С
Time ready to be fired at the security
features after power-up
5 min
Bypass power supply circuit
Yes. The equipment is ready for
operation after switching on the input network
Integration into the automated
process control system
Digital inputs, outputs, RS-485
interface (Modbus RTU), analog control
and feedback signals
Modifications
Modifications
Torque limitation range, N     Shut off time, sec
RemTEK.P.75

15...75

6...60

RemTEK.P.125

30...125

RemTEK.P.250

50...250

RemTEK.P.600

120...600

RemTEK.P.1000

200...1000

RemTEK.P.2000

400...2000

9...100

Modifications
Torque limitation range, N 
Speed at the gearbox output, m / s
RemTEK.L.3500

700...3500

1...20

RemTEK.L.7000

1400...7000

RemTEK.L.10000

2000...10000

RemTEK.L.18000

3600...18000

RemTEK.L.25000

5000...25000

RemTEK.L.30000

6000...30000

RemTEK.L.45000

9000...45000