Specifications
2 Copyright 2010 Schneider Electric All Rights Reserved. F-12586-11
Table-2 Specifications.
Part Number
Nominal
Operating
Range
Starting
Pressure
Nominal
Stroke
a
Maximum Force
b
Nominal Torque
c
Proportional Control
b
Return
Stroke
Power Stroke
Based on
1.5 psi
(10 kPa)
Pressure
to
Actuator
15 psi
(103 kPa)
Supply
Dual Press.
System
15 psi
(1
03 kPa)
Supply
Single
Press.
System
d
20 psi
(138 kPa)
Supply
Single or
Dual Press.
System
15 psi
(103 kPa)
Supply Dual
Press.
System
15 psi
(10
3 kPa)
Supply
Single Press.
System
20 psi
(
138 kPa)
Supply
Single or
Dual Press.
System
d
psig kPa psig kPa in. (mm) lb. N lb. N lb. N lb. N lb-in. N-m lb-in. N-m lb-in. N-m
MK-3101-108 3-7.2 21-50 3 ± 1 21 ± 7
3 (76)
Adjustable
2 to 4 (51
to 102)
12 53 50 226 62 276 102 454 18 2.03 18 2.03 18 2.03
MK-3101
MK2-3101
3-8 21-55 3 ± 1 21 ± 7
3 1/2 (89)
Ad
justable
2 to 4 (51
to 102)
12 53 44 196 56 249 96 427 21 2.37 21 2.37 21 2.37
MK4-3101
e
3-8 21-55 3 ± 1 21 ± 7 12 53 44 196 56 249 96 427 21 2.37 21 2.37 21 2.37
MK-3111
MK2-3111
5-10 34-69 5 ± 1 3 ± 7 28 125 28 125 40 178 80 356 21 2.37 21 2.37 21 2.37
MK4-3111 5-10 34-69 5 ± 1 34 ± 7 28 125 28
125 40 178 80 356 49 5.54 49 5.54 49 5.54
MK-3121
MK-3121-109
MK2-3121
e
8-13 55-90 8 ± 1 55 ± 7 52 231 4 18 16 71 56 249 7 79 21 2.37 21 2.37
MK4-3121
e
8-13 55-90 8 ± 1 55 ± 7 52 231 4 18 16 71 56 249 7 79 28 3.16 91 10.28
MK-3141
MK4-3141
e
3-13 21-90
3
non-adj
21
non-adj
12 53 4 18 16 71 56 249 7 79 21 2.37 21 2.37
MK-3151
3-6
9-12
21-41
62-83
3-6
21 to
41
2-3/4 (70)
Ad
justable
2 to 2-3/4
(51 to 70)
12 53 12 53 24 107 64 285 21 2.37 21 2.37 21 2.37
MK-3161
3-6
11-17
21-41
76-117
3-6
21 to
41
12 53 0 0 0 0 24 107 0 0 0 0 21 2.37
MK-3201 3-8 21-55 3 ± 1 21 ± 7 90
o
Rotation
Typical,
Adjustable
1.2 to 4.4
(30 to 111)
12 53 44 196 56 249 96 427 21
2.37 21 2.37 21 2.37
MK-3211 5-10 34-69 5 ± 1 34 ± 7 28 125 28 125 40 178 80 356 21 2.37 21 2.37 21 2.37
MK-3221 8-13 55-90 8 ± 1 55 ± 7 52 231 4 18 16 71 56 249 7 .79 21 2.37 21 2.37
MK-3311-109 5-10 34-69 5 ± 1 34 ± 7 3-1/2 (89)
Adjustable
2 to 4 (51
to 102)
28 125 28 125 40 178 80 356 21 2.37 21 2.37 21 2.37
MK-3321-102 8-13 55-90 8 ± 1 55 ± 7 52 231 4 18 16 71 56 249 7 .79 21 2.37 21 2.37
MK-3801
MK4-3801
e
3-8 21-55 3 ± 1 21 ± 7
3-1/2 (89)
Adjustable
2 to 4 (51
to 102)
12 53 44 196 56 249 96 427 21 2.37 21 2.37 21 2.37
MK-3811 5-10 34-69 5 ± 1 34 ± 1 28 125 28 125 40 178 80 356 21 2.37 21 2.37 21 2.37
MK4-3811 5-10 34-69 5 ± 1 34 ± 1
28 125 28 125 40 178 80 356 49 5.54 49 5.54 49 5.54
MK-3821 8-3 55-90 8 ± 1 55 ± 1 52 231 4 18 16 71 56 249 7 79 21 2.37 21 2.37
MK4-3821
e
8-13 55-90 8 ± 1 55 ± 1 52 231 4 18 16 71 56 249 7 79 28 3.16 91 10.28
MK-3841
MK4-3841
e
3-13 21-90
3
non-adj
21
non-adj
12 53 4 18 16 71 56 249 7 79 21 2.37 21 2.37
a
Factory setting required for published operating range.
b
Force and torques based on factory set stroke and starting pressure.
c
Nominal torque for actuators without positive positioner is based on 1.5 psi pressure change at the actuator.
d
Adjust pressure reducing valve so that listed pressures are available at the actuator.
e
Factory installed positive positioner (AK-42309-500) start point adjustable 2 to 10 psi with range adjustable 2 to 10 psi.