On customer’s request Exforma Ltd. supplies gas ball valves with electric drive MEOF.
Actuating mechanisms are produced with one of the next warning blocks of input shaft position:
- inductive block with two position sensors with output signal that indicates a.c. voltage alteration;
- rheostatic block with two position sensors with output signal that indicates resistance changing from 0 to 120 Om;
- current block with unified signal 0-5, 0-20, 4-20 mA.
Mechanisms are produced with feedback sensor for working in automatic control systems or without feedback sensors with limit switches block for manual control mode.
Picture 1. Ball valves GShK with electric drive
Electric actuating mechanisms – technical characteristics:
| Characteristics |
Parameter |
| Nominal torsion moment on output shaft |
6,3; 16; 40; 100; 250; 320; 630; 800; 1000; 1600; 2500; 4000; 10000. |
| Full stroke of output shaft |
0,25; 0,63 |
| Nominal time of full stroke of output shaft |
10; 25; 63; 160 |
