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| PRODUCTS | |
| ELECTRICAL ACTUATORS | |
| Emtork Actuators | |
| Regeltek Actuators | |
| QT (Quarter Turn Actuators) | |
| Electrical Thrusters | |
| Accessories | |
| MOTORIZED VALVES | |
| DAMPERS | |
| GEARBOXES | |
| Multiturn | |
| Quarterturn | |
SPUR GEAR BOXES
Full rotary application suitable for rising and non-rising sluice and gate valves.
| Sr. No. | Model | Red. Ratio | Max Output torque kgm. |
Max valve spindle accaptable - mm |
| 1 | SG02 | 2.5 : 1 | 40 | 52 |
| 2 | SG404 | 4 : 1 | 65 | 55 |
| 3 | SG406 | 6 : 1 | 100 | 60 |
| 4 | SG408 | 8 : 1 | 130 | 80 |
| 5 | SG412 | 12 : 1 | 200 | 90 |
| 6 | SG4212 | 12 : 1 | 400 | 100 |
CONSTRUCTIONAL DETAILS |
Description The "MARSH" make SG series gear operators are spur gear type reduction units, designed either for hand-operation or electric multiturn actuators. The unit is suitable to operate valves with rising or non rising stems, such as gate, sluice & other rotary valves. The units are efficient, reliable, rugged & simple in construction. The housing is totally enclosed. All the components are precisely machined from carefully selected materials. The units are grease lubricated to minimize friction. Coupling The units are available in the following versions of the coupling as per DIN 3210. Type A: A thrust support unit with threaded bronze bush for the rising valve stem. Type C: A coupling unit with claw for rising / non-rising valve stems. Type E: With a bored drive sleeve with keyway for non-rising valve - stems. Note: For rising stem-valve operators, a protection tube can be supplied if the valve-spindle-rise is known. |
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