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MULTI-TURN EXPLOSION-PROOF ELECTRIC DRIVES ГЗ-ВА/ВБ/ВВ/ВГ/ВД

MULTI-TURN EXPLOSION-PROOF ELECTRIC DRIVES ГЗ-ВА/ВБ/ВВ/ВГ/ВД

Multi-turn explosion-proof drives ГЗ-ВА, ВБ, ВВ, ВГ, ВД with 1ЕхdIIBТ4 explosion-proof mark equipped with two-way torque limiting clutch (connection to valve: acc. to GOST 26-07-763-73) are used to operate pipeline shut-off valves at chemical, oil, gas and energy industries.

Explosion-proof drives may be mounted in IIВ explosion hazardous zones acc. to GOST 51330.0-99 indoors, outdoors under shelteracc. to Electrical Installation Code Section 7.3 for equipment with 1ExdIIВТ4 explosion-proof mark.

These electric drives allow for:

  • Remote shut-off and start-up of valve trim from the operator console;
  • Manual operation of valve trim by means of manual override handle in absence of power supply;
  • Shutdown of valve trim in any intermediate position by pressing STOP button at the operator console;
  • Automatic shutdown of electric drive by means of two-way torque limiting clutch,if the set output shaft torque is reachedin CLOSE/OPEN position, or in case of emergency shutdown of moving parts during travel to shut-off or start-up position;
  • Signalling tothe operator console of limit positions of valve trim and if two-way torque limiting clutch is activated.

Electric drive ГЗ-ВВ allows for:

  • Automatic shutdown of electric drive by means of limit microswitches,if valve trim reaches limit positions;
  • Indication of valve trip position on local indicator scale;
  • Remote indication of rate of valve trim opening to operator console;
  • Automatic switch of electric drive from manual operation mode to operation by electric drive (for electric drives ГЗ-ВА, ГЗ-ВБ);
  • Torque adjustment within the range of 60…100% of max. value;
  • Overheat protection of electric drive.

Basic parameters of electric drives ГЗ-В

Identification Connection to valves acc. to GOST 26-07-763-73 Max. output shaft torque, Nm Motor (380V AC/3 ph/50Hz) Shaft speed, rev/min Adjusted number of output shaft revolutions required to shut-off(start-up) valve, rev. Weight
Power Nominal current Starting current
Nm kW А А Standard Customized Min. Max. kg, ±8%
ГЗ-ВА.100 А 100 0.25 1.5 6 24 12, 18, 36 1 300 57
ГЗ-ВА.150 А 150 0.37 1.6 7 24 12, 18, 36 1 300 57
ГЗ-ВБ.200 Б 200 0.55 2.3 12 24 12, 18, 36 1 300 71
ГЗ-ВБ.300 Б 300 0.75 2.8 16 24 12, 18, 48 1 300 73
1,1 4,3 21 36
ГЗ-ВВ.600 В 600 1.5 6 32 24 12, 18, 48 1 400 138
2,2 9,8 50 36
ГЗ-ВВ.900 В 900 2.2 9.8 50 24 12, 18, 36 1 400 138
ГЗ-ВГ.2500 Г 2500 5.5 16 105 24 12, 18, 36 1 400 241
ГЗ-ВД.5000 Д 5000 5.5 16 105 12 – 1 400 305

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