SP 1, SP 2, SP 2.3, SP 2.4
13
SPR1, SPR 2, SPR 2.3, SPR 2.4
3. Installation and dismantling of actuator
Abide by safety measures!
Notes:
Repeatedly verify whether placing of EA correspondents to part "Operating conditions". If actual conditions
differ from recommended, it is necessary to consult it with manufacturer.
Before starting of mounting the EA onto the valve:
•
Check again whether the EA was not damaged during storing.
•
Check whether the adjusted operation angle and connecting dimensions of the actuator (see the nameplate)
are in compliance with the valve parameters.
•
In case of inconsonance, perform adjusting according to the part Adjustment.
3.1 Installation
3.1.1 Mechanical connection
EA is by the producer adjusted to parameters according to the nameplate,
with connecting dimensions according to the corresponding dimensional drawing
and put it to a mid-position.
Before installation put the handwheel on.
Mechanical flange connection
•
Properly defat contact surfaces of the EA, connecting flange and the
valve/gearing.
•
Coat the valve/gearing output shaft firmly with a grease not containing any
acid.
•
Reset the EA to the limit position "closed"; put the valve to the same limit
position.
•
Put the EA onto the valve to have the output shaft reliably in the
valve/gearing coupling.
•
Use the handwheel to turn the EA if needed to reach compliance between
holes in the EA flange and the valve.
•
Check whether the connecting flange clings to the valve/gearing.
•
Fix the flange with four screws (with mechanical ruggedness min. 8G)
tightened to allow moving of EA. Then the fixing screws tighten uniformly
crosswisely.
Mechanical lever connection (Fig.2)
•
Clean contact surfaces of the stand and the base and coat the EA shaft and the pull-rods sliding surfaces
with grease.
•
Fix the EA to the device with two screws.
•
Put the controlled device to the limit position; put the EA
with stop ends to the corresponding limit position.
•
Put the lever or another output element corresponding
with the position as much as possible, in case that the
position is not in compliance with required, tune it with
the handwheel in range ± 15°.
•
Connect the EA with the device with the pull-rod
consisting of two ball pins and a 1/2" tube according to
STN 42 5711 threaded on both ends.
•
In EA without stop ends operation angle position can be
adjusted with the handwheel, along the whole
circumference without changing of setting of the lever.
•
While installing take care to have the angle between the lever and the pull-rod at least 15° and at most 165°
(Fig.2).
!
Fig.2
Fig.1