Satchwell ALM Series Manual

LINEAR ACTUATORS
†
Specification no. 477-X-XXX
Satchwell Linear Actuators type 'AL' are reversing actuators having a
linear output, for direct coupling to Satchwell lift and lay seat-type
control valves or other seat valves requiring a linear driver over stroke
lengths of up to 38mm (1½"), within the limits of output thrust stated
overleaf and with compatible mounting arrangements.
These actuators are suitable for either two-position or modulating
control, dependent on the controller or other switching device providing
the input signal. The ALM is suitable for a mains power supply, the ALX
is 24V, and the ALE is 24V, but accepts a 0-10Vdc input signal.
The ALE actuator can be set to operate a low hysteresis when used for
tight control applications on microprocessor based controllers such as
the KMC and MMC.
FEATURES
•
Direct coupling to Satchwell seat valves without extra
mounting brackets or linkage kits, saving site time
•
Direct coupling to other makes of seat valves, where stroke,
thrust and mounting are compatible
•
Universal for valve strokes, up to 38mm (1½"). Actuator stroke
is self-setting to suit valve stroke, including ALE by simple
adjustment
•
Alternative stroke times, to suit application
•
Manual operation or override facility built-in
•
Standard or low hysterisis selection on ALE to cater for
different application types
•
Case sealed to IP 54 as standard
•
Auxiliary switch kit available, see 'Accessories'
An Invensys company
DS 3.401
ALM, ALX, ALE
† For the full specification number replace the 4Xs with the
appropriate figures from the 'TYPE' column in the table
on page 2.
MLI 3.401 - Mounting Instructions
Valves
DS 4.410 - VZ, VSF, VZF
DS 4.610 - MZ, MJF, MZF
11/99