18 · GLOBE RM410 PISTON AIR MOTOR MANUAL| INCLUDING AUXILIARIES | ATEX Certified
Operational principle RM410
Remote Control Valve
This range of bolt on valves offers very sensitive speed and directional control. One frictional
matched spool and sleeve assembly is offered with two alternative means of actuation.
Configuration
As standard these valves can be supplied with either
EQUAL POWER OR BIASED POWER
spools,
the latter is suitable for hoisting applications (normal power for lifting - reduced power for lowering).
The direction of reduced power must be stated when ordering
CW
or
CCW
, when viewed on the
output shaft of the motor or geared motor.
Remotely Controlled (RCV)
- This option is usually controlled from a remote position by one
of the PC series or LC2 remote controllers. A variable air pilot signal is applied to either end of
the valve spool, depending on the required direction of motor rotation. The pilot pressure range is
between 1.4 bar (20 psi) and 4.8 bar (70 psi), increased pilot pressure gives increased speed. The
valve is spring centred to neutral.
Pressure Drop
- Minimal pressure drop will be experienced through the valves, having the effect
of maintaining the output torque whilst reducing the motor output speed by approximately 10-15%
at 6 bar (90 psi) at maximum power. The starting torque remains unaffected.
