Tools required – Marwin Valve ER Series Electric Actuators User Manual
Page 2
Tools Required
ER-1
Cover Screws
9
/
64
" Allen wrench
Terminal Strip Screws
1
/
8
" wide flat head screw driver
Cam Setscrew
5
/
64
" Allen wrench
Mounting Pad Screws
3
/
8
" socket
ER-2 and ER-3
Cover Screws
NEMA Standard enclosure - Phillips head screwdriver; Deep Base enclosure -
9
/
64
" Allen wrench. NEMA 7 enclosure -
7
/
16
" socket
Position Indicator
5
/
64
" Allen wrench
Terminal Strip Screws
1
/
8
" wide flat head screwdriver
Cam Setscrew
5
/
64
" Allen wrench
Mounting Pad Screws
3
/
8
" socket
ER4-15
Cover Screws
NEMA 4 enclosure -
5
/
32
" Allen wrench. NEMA 7 enclosure -
7
/
16
" socket
Terminal Strip Screws
3
/
16
" wide flat head screwdriver
Cam Setscrews
5
/
64
" Allen wrench
Mounting Pad Screws
½" socket
ER-20 and ER-38
Cover Screws
7
/
16
" socket
Terminal Strip Screws
3
/
16
" wide flat head screwdriver
Cam Setscrew
5
/
64
" Allen wrench
Mounting Pad Screws
9
/
16
" socket
ER-50-140
Cover Screws
½" socket
Position Indicator
5
/
64
" Allen wrench
Terminal Strip Screws
3
/
16
" wide flat head screwdriver
Cam Setscrew
5
/
64
" Allen wrench
Mounting Pad Screws
¾" socket
Additional tools will be required for the screws to mount the valve to the actuators.
Suggestion Maximum Torque Values for Fasteners in in.-lbs.
Screw Size
Low Carbon Steel
18-8 SS
316 SS
Aluminum
2-56
2.2
2.5
2.6
1.4
4-40
4.7
5.2
5.5
2.9
6-32
9
10
10
5
8-32
18
20
21
10
10-24
21
23
24
13
10-32
30
32
33
19
1/4-20
65
75
79
45
5/16-18
129
132
138
80
3/8-16
212
236
247
143
1/2-13
465
517
542
313
5/8-11
1000
1110
1160
715
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