MO 4-Ex – explosion-proof electric multi-turn actuator

Standard equipment

• Supply voltage 3×400 V AC
• Terminal board connection
• 2 torque switches
• 2 position switches
• 2 additional position switches
• Space heater with thermal switch
• Mechanical connection – flange
• Mechanical position indicator
• Manual control
• Torque switches blocking in limit position

Additional equipment

• Supply voltage 3×380 V AC
• Tandem switches
• Transmitter:
  – potentiometer: 1×100 Ω, 1×2000 Ω, 2×100 Ω, 2×2000 Ω
  – electronic position transmitter 0/4 – 20 mA, (passive/active)
  – CPT (capacitive) 4 – 20 mA, (passive/active)
• Mechanical connection:
  – ISO 5210, shape A, B2, B3, B4
  – DIN 3338, shape C
  – other non-standard connection

Príspevok Explosion-proof electric multi-turn actuator MO 4-Ex zobrazený najskôr MARVEL P.I.&T. | MARVEL-BMT | Electric actuators.

MO 4 – electric multi-turn actuator

Standard equipment

• Supply voltage 3×400 V AC
• Protection of the motor against overheating
• Terminal board connection
• 2 torgue switches
• 2 position switches
• 2 additional position switches
• Space heater with thermal switch
• Mechanical connection ISO 5210 – flange F14 / shape B2, B3, B4, C
• Mechanical position indicator
• Torque switches blocking in limit position
• Manual control
• Protection enclosure IP 55

Additional equipment

• Supply voltage 3×380 V AC
• Connector connection
• Tandem switches
• Transmitter:
  – potentiometer: 1×100 Ω, 1×2000 Ω, 2×100 Ω, 2×2000 Ω
  – electronic position transmitter 0/4 – 20 mA, (passive/active)
  – CPT (capacitive) 4 – 20 mA, (passive/active)
• Local control
• Mechanical connection:
  – ISO 5210, shape A, B1, D and ГОСТ Р 55510 – Б
  – other non-standard connection
• Protection enclosure IP 67
• Ambient temperature -50 to +40 °C

Príspevok Electric multi-turn actuator MO 4 zobrazený najskôr MARVEL P.I.&T. | MARVEL-BMT | Electric actuators.

MOA OC – electric multi-turn actuator intended for nuclear power plants

Usage

Electric multi-turn actuator MOA OC is designed for remote control of special valves installed in hermetic boxes or under the containment of nuclear power plants with reactors VVER or RBMK. The actuators MODACT® MOA OC are intended for safety circuits as well as for normal use.

Documents for download

• Catalog
• Catalog 52 079
• Installation instructions
• Installation instructions 52 079
• Installation instructions 52 070.3 – 52 074.3

Príspevok Electric multi-turn actuator MOA OC zobrazený najskôr MARVEL P.I.&T. | MARVEL-BMT | Electric actuators.

MOA – electric multi-turn actuator intended for nuclear power plants

Usage

Electric multi-turn actuator MOA is designed for remote control of special valves installed in attended areas of nuclear power plants with reactors VVER or RBMK. The type series includes 5 sizes of electric actuators with tripping torque from 20 Nm to 2000 Nm. The actuators are suitable for controlling sliding valves and valves with nuts. For valves, the pitch angle of thread of the spindle nut must not be higher than 5°.

Documents for download

• Catalog
• Catalog 52 029
• Installation instructions
• Installation instructions 52 029

Príspevok Electric multi-turn actuator MOA zobrazený najskôr MARVEL P.I.&T. | MARVEL-BMT | Electric actuators.

MOED EEx – explosion-proof electric multi-turn actuator

Usage

Electric multi-turn actuator MOED EEx is specially intended for controlling devices by a reversing rotary motion, e.g. slide valves and valves, and, in connection with an appropriate gearbox, also flap or ball valves, and other devices for which they are suitable due to their properties.

Description

They can be operated in an environment with a danger of explosion of explosive gaseous atmosphere in zone 1 and zone 2 according to EN 60079-10 (332320). The actuators are designed as a device of group II, category 2G in compliance with standards EN 60079-0:2004, EN 60079-1:2004, and EN 60079-7:2004 for explosive gaseous atmosphere.

The actuators are marked with a label of protection against explosion and symbols of the group and category of the device Ex II 2G or Ex I M2; in addition, according to version for surrounding temperature -25°C to + 55°C with marking Ex de IIC T4 or for surrounding temperature -50°C to +55°C with marking Ex de IIB T4, and/or as modification for using in mines of group I, category M2 with marking Ex de I (see chapter Data on actuators).

Electro-mechanical control board is replaced with the electronic system DMS2 or DMS2 ED. Both systems scan position of the output shaft and torque of the electric actuator by contact-free magnetic sensors. The sensor of the output shaft position is absolute and does not require any backup power supply in case supply voltage is disconnected during operation of the electric actuator. Both systems can be set and monitored by a computer with controlling programme or manually without a computer.
The more simple system DMS2 ED substitutes electromechanical parts and/or provides for controlling the electric actuator by input analog signal as in the version Control.
The system DMS2 enables the electric actuator to be used for two-position and three-position regulation or to be connected to the industrial bus bar Profibus.

Standarts

It consists of the following symbols:
EEx – Electric device complies with the standard EN 50 014 and related standards for various types of protection against explosion.
d – Designation of the type of protection against explosion, explosion-proof closure according to EN 50 018.
II – Designation of the group of explosion-proof electric device according to ČSN EN 50 014.
C – Designation of the sub-group of the group of explosion-proof electric device according to EN 50 014.
T4 – Designation of temperature class of explosion-proof electric device of the Group II according to EN 50 014.

Nomenclature

Environment with explosion danger – environment in which an explosive atmosphere can be created
Explosive gaseous atmosphere – a mixture of flammable substances (in the form of gases, vapours or mist) with air under atmospheric conditions in which, after initialization, burning spreads out to non-consumed mixture.
Maximum surface temperature – The highest temperature created during operation under the most unfavourable conditions (however within approved limits) on any surface part of the electric device, which could induce ignition of surrounding atmosphere.
Closure – All walls, doors, covers, cable bushings, shafts, rods, pull-rods, etc. which contribute to the type of protection against explosion and/or to the level of protection (IP) of the electric device.
Explosion-proof closure “d” – Type of protection in which the parts capable of causing ignition of an explosive atmosphere are installed inside the closure; in case of internal explosion this closure should withstand pressure of the explosion and prevent spreading of the explosion into the surrounding atmosphere.
Secured design “e” – Type of protection against explosion with additional measures adopted for increased safety against non-permissible temperature increase and formation of sparks or arcs inside and on external parts of the electric device which, under normal operating conditions, does not form sparks or arcs.

Documents for download

• Catalog
• Installation instructions

Príspevok Explosion-proof electric multi-turn actuator MOED EEx zobrazený najskôr MARVEL P.I.&T. | MARVEL-BMT | Electric actuators.

MO EEx – explosion-proof electric multi-turn actuator

Usage

Electric multi-turn actuator MO EEx is specially intended for controlling devices by a reversing rotary motion, e.g. slide valves and valves, and, in connection with an appropriate gearbox, also flap or ball valves, and other devices for which they are suitable due to their properties.

They can be operated in an environment with a danger of explosion of explosive gaseous atmosphere in zone 1 and zone 2 according to EN 60079-10 (332320). The actuators are designed as a device of group II, category 2G in compliance with standards EN 60079-0:2004, EN 60079-1:2004, and EN 60079-7:2004 for explosive gaseous atmosphere.

The actuators are marked with a label of protection against explosion and symbols of the group and category of the device Ex II 2G or Ex I M2; in addition, according to version for surrounding temperature -25°C to + 55°C with marking Ex de IIC T4 or for surrounding temperature -50°C to +55°C with marking Ex de IIB T4, and/or as modification for using in mines of group I, category M2 with marking Ex de I (see chapter Data on actuators).

Popis

Environment with explosion danger – environment in which an explosive atmosphere can be created

Explosive gaseous atmosphere – a mixture of flammable substances (in the form of gases, vapours or mist) with air under atmospheric conditions in which, after initialisation, burning spreads out to non-consumed mixture.
Maximum surface temperature – The highest temperature created during operation under the most unfavourable conditions (however within approved limits) on any surface part of the electric device, which could induce ignition of surrounding atmosphere.
Closure – All walls, doors, covers, cable bushings, shafts, rods, pull-rods, etc. which contribute to the type of protection against explosion and/or to the level of protection (IP) of the electric device.
Explosion-proof closure “d” – Type of protection in which the parts capable of causing ignition of an explosive atmosphere are installed inside the closure; in case of internal explosion this closure should withstand pressure of the explosion and prevent spreading of the explosion into the surrounding atmosphere.
Secured design “e” – Type of protection against explosion with additional measures adopted for increased safety against non-permissible temperature increase and formation of sparks or arcs inside and on external parts of the electric device which, under normal operating conditions, does not form sparks or arcs.

Standards

It consists of the following symbols:
EEx – Electric device complies with the standard EN 50 014 and related standards for various types of protection against explosion.
d – Designation of the type of protection against explosion, explosion-proof closure according to EN 50 018.
II – Designation of the group of explosion-proof electric device according to ČSN EN 50 014.
C – Designation of the sub-group of the group of explosion-proof electric device according to EN 50 014.
T4 – Designation of temperature class of explosion-proof electric device of the Group II according to EN 50 014.

Documents for download

• Catalog
• Installation instructions

Príspevok Explosion-proof electric multi-turn actuator MO EEx zobrazený najskôr MARVEL P.I.&T. | MARVEL-BMT | Electric actuators.

MOPED – electric multi-turn actuator

Usage

Electric multi-turn actuator MOPED are designed for shifting valves and/or other elements for which they are suitable with their reversible rotary motion. Other using than that for controlling valves should be discussed with the manufacturer. The actuators can operate in circuits of remote control. The actuators can also operate in circuits of automatic regulation with the regime S4 – 25 %; 1200 h-1.

Description

Electro-mechanical control board is replaced with the electronic system DMS2 or DMS2 ED. Both systems scan position of the output shaft and torque of the electric actuator by contact-free magnetic sensors. The sensor of the output shaft position is absolute and does not require any backup power supply in case supply voltage is disconnected during operation of the electric actuator. Both systems can be set and monitored by a computer with controlling programme or manually without a computer.

The more simple system DMS2 ED substitutes electromechanical parts and/or provides for controlling the electric actuator by input analog signal as in the version Control.

The system DMS2 enables the electric actuator to be used for two-position and three-position regulation or to be connected to the industrial bus bar Profibus.

Documents for download

• Catalog
• Catalog 52 039
• Installation instructions
• Installation instructions 52 039

Príspevok Electric multi-turn actuator MOPED zobrazený najskôr MARVEL P.I.&T. | MARVEL-BMT | Electric actuators.

MONEDJ – electric multi-turn actuator

Usage

Electric multi-turn actuator MONEDJ is designed for shifting valves and/or other elements for which they are suitable with their reversible rotary motion. Other using than that for controlling valves should be discussed with the manufacturer. The actuators can operate in circuits of remote control. The actuators can also operate in circuits of automatic regulation with the regime S4 – 25 %; 1200 h^-1.

Description

Electro-mechanical control board is replaced with the electronic system DMS2 or DMS2 ED. Both systems scan position of the output shaft and torque of the electric actuator by contact-free magnetic sensors. The sensor of the output shaft position is absolute and does not require any backup power supply in case supply voltage is disconnected during operation of the electric actuator. Both systems can be set and monitored by a computer with controlling programme or manually without a computer.

The more simple system DMS2 ED substitutes electromechanical parts and/or provides for controlling the electric actuator by input analog signal as in the version Control. The system DMS2 enables the electric actuator to be used for two-position and three-position regulation or to be connected to the industrial bus bar Profibus.

Documents for download

• Catalog
• Installation instructions

Príspevok Electric multi-turn actuator MONEDJ zobrazený najskôr MARVEL P.I.&T. | MARVEL-BMT | Electric actuators.

MONED – electric multi-turn actuator

Usage

Electric multi-turn actuator MONED is designed for shifting valves and/or other elements for which they are suitable with their reversible rotary motion. Other using than that for controlling valves should be discussed with the manufacturer. The actuators can operate in circuits of remote control. The actuators can also operate in circuits of automatic regulation with the regime S4 – 25 %; 1200 h^-1.

Description

Electro-mechanical control board is replaced with the electronic system DMS2 or DMS2 ED. Both systems scan position of the output shaft and torque of the electric actuator by contact-free magnetic sensors. The sensor of the output shaft position is absolute and does not require any backup power supply in case supply voltage is disconnected during operation of the electric actuator. Both systems can be set and monitored by a computer with controlling programme or manually without a computer.

The more simple system DMS2 ED substitutes electromechanical parts and/or provides for controlling the electric actuator by input analog signal as in the version Control. The system DMS2 enables the electric actuator to be used for two-position and three-position regulation or to be connected to the industrial bus bar Profibus.

Documents for download

• Catalog
• Installation instructions
• Addition to installation instructions

Príspevok Electric multi-turn actuator MONED zobrazený najskôr MARVEL P.I.&T. | MARVEL-BMT | Electric actuators.

MOP – electric multi-turn actuator MOP

Usage

Electric multi-turn actuator MOP can be fitted with a position regulator, reversing contactors, overcurrent motor protection and the BAM electronic brake. They can be used to adjust control devices working in control systems, depending on the value of analogue input signal of the position regulator. They can also be equipped with reversing contactors only or with reversing contactors and the BAM electronic brake.

Description

The MODACT ® MOP actuators have been designed for changing position of control devices by reversing rotary motion (e.g. slide valves and other devices for which they are suitable in their characteristics). A typical example of application is remote two-position or multi-position control of devices which are required to close tight in their end positions.

Documents for download

• Catalog
• Catalog 52 039
• Installation instructions
• Installation instructions 52 039
• Addition to installation instructions

Príspevok Electric multi-turn actuator MOP zobrazený najskôr MARVEL P.I.&T. | MARVEL-BMT | Electric actuators.