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Data sheet
Sheet No.:
Date: November 2009
Copyright © Emerson Process Management. The information in this document is subject to change without notice.
Updated data sheets can be obtained from our website www.El-O-Matic.com or from your nearest Valve Automation Center USA: +1 813 319 0266 Europe: +31 74 256 10 10 Asia-Pacific: +65 6501 4600
www.El-O-matic.com
TM
A1.501.03 Rev. A
LIMIT STOP PLATE DIMENSIONS LS 420
Dim.
in inches
ACTUATOR TYPE
P2500 P4000
E
18.3 19.3
F
5.3 5.3
G
12.7 12.7
H
5.1 5.6
O
1.8 2.2
V
165 165
W
M20x30 M20x30
Description
These limit stop plates are used when precise control is required for both end of stroke positions.
It is possible to adjust 15° of both ends of the standard stroke.
Construction
The complete stop plate assembly may be added to the 90° P- series actuators.
The assembly is normally sandwiched between the actuator and mounting surface of the valve
or bracket. Bearing rings are used at both surfaces to provide a long life expectancy.
The unit is assembled with a drive adaptor which passes through the stop plate, into the square
actuator and provides the coupling between the two components.
This drive adaptor normally also accommodates the coupling of the valve stem.
Identification
"LS420" is added to the basic part number i.e. PD2500-LS420
Other dimensions
See data sheet A1.103.xxx
Option
Version for 180° or DIN-standard actuator
+1° -15°
+0.5°
-15°
E
Gmax.
F
WO
V
H
max.
Drive shaft
Actuator base
Drive adaptor
Cover plate
Cam
Housing limit stop
+1° -15°
+0.5°
-15°
E
Gmax.
F
WO
V
H
max.
Open
Closed
Adjustable range
90° actuators
Note: Cover plate only in combination with P2500