Magnetrol B73-1B2D-BKQ B73 & series 75 sealed external cage liquid level switch Datasheet

B73 & Series 75
Sealed External Cage
Liquid Level Switches
DESCRIPTION
Sealed external cage type level switches are completely
self-contained units designed for side mounting to a tank
or vessel with threaded or flanged pipe connections.
These units are an industry standard in petroleum
refineries and chemical plants. Thousands of these
switches are in daily service throughout the world.
FEATURES
• Carbon steel or stainless steel welded float chamber
• Service pressures up to 2240 psig (154 bar)
• Process temperatures up to +1000° F (+538° C)
• Specific gravity ratings as low as 0.32
• Available switch styles including dry contact,
hermetically sealed and pneumatic
• Single or multiple switch mechanisms available
• Available switch enclosures include:
APPLICATIONS
NEMA 1 carbon steel for pneumatics
• Accumulators
• Flash tanks
TYPE 4X/7/9 Class I, Div. 1 Groups C & D or
Groups B, C & D polymer coated aluminum
• Receivers
• Knockout drums
• Flare pots
• Storage tanks
• 1", 11⁄2", or 2" tank connections available in either
NPT, socket weld, flanged side/side or flanged
side/bottom construction
• Scrubbers
• Separators
• Oil refineries
• Chemical processing plants
• Optional high temperature insulation available.
See bulletin 41-106.
• Steam and electric generating stations
TECHNOLOGY
A permanent magnet is attached to a pivoted switch
actuator and adjustment screw . As the float rises
following the liquid level, it raises the attraction sleeve
into the field of the magnet, which then snaps
against the non-magnetic enclosing tube , actuating
the switch . The enclosing tube provides a static
pressure boundary between the switch mechanism and
the process. On a falling level, an inconel spring retracts
the magnet, deactivating the switch.
2
5
Pivot
6
4
Return
Spring
1
3
Process Liquid
Process Liquid
Rising Level
Falling Level
AGENCY
APPROVALS
AGENCY
APPROVED MODEL
AREA CLASSIFICATION
FM
All with an electric switch mechanism and a housing
listed as TYPE 4X/7/9
Class I, Div 1, Groups C & D
Class II, Div 1, Groups E, F & G
All with an electric switch mechanism and a housing
listed as TYPE 4X/7/9 Class I, Div 1, Group B
Class I, Div 1, Groups B, C & D
Class II, Div 1, Groups E, F & G
All with a Series F, HS, H1, 8 or 9 electric switch
mechanism and a housing listed as CSA TYPE 4X
Class I, Div 2, Groups B, C & D
All with an electric switch mechanism and a housing
listed as TYPE 4X/7/9
Class I, Div 1, Groups C & D
Class II, Div 1, Groups E, F & G
All with an electric switch mechanism and a housing
listed as TYPE 4X/7/9 Class I, Div 1, Group B
Class I, Div 1, Groups B, C & D
Class II, Div 1, Groups E, F & G
All with an electric switch mechanism and an
ATEX housing ATEX II 2 G EEx D IIC T6
94/9/EC
IEC Ex Ex d IIc T6
IP66
Low Voltage Directives 2006/95/EC
Per Harmonized Standard:
EN 61010-1/1993 & Amendment No. 1
Installation Category II
Pollution Degree 2
CSA
ATEX / IEC Ex CE
Models with two HS or two H1 switches are not ATEX approved.
IEC Installation Instructions: The cable entry and closing devices shall be Ex d certified suitable for the conditions of use and correctly installed.
For ambient temperatures above +55° C or for process temperatures above +150° C, suitable heat resistant cables shall be used.
Heat extensions (between process connection and housing) shall never be insulated.
Special conditions for safe use:
When the equipment is installed in process temperatures higher than +85° C the temperature classification must be reduced according to
the following table as per IEC60079-0.
Maximum Process
Temperature
< 85° C
< 100° C
< 135° C
< 200° C
< 300° C
< 450° C
Temperature
Classification
T6
T5
T4
T3
T2
T1
BASIC ELECTRICAL RATINGS
These units are in conformity with IECEx KEM 05.0020X
Classification Ex d IIC T6
Tambient -40° C to +70° C
DIMENSIONAL
Voltage
120 VAC 15.00
240 VAC 15.00
24 VDC 6.00
120 VDC 0.50
240 VDC 0.25
NPT &
Socket Weld
A
B
C
Switch Series and Non-Inductive Ampere Rating
R
8
9
C
D
F
HS
H1
—
15.00 10.00 0.25 5.00 1.00 1.00 1.00
—
—
15.00
—
—
5.00 1.00 1.00
10.00 10.00 4.00 5.00 1.00 1.00 3.00 0.50
—
—
1.00 10.00 0.30 0.50 0.40 0.40
—
—
—
0.50 3.00
—
0.25
—
SPECIFICATIONS
CARBON STEEL CHAMBERS WITH 11⁄2-INCH CONNECTIONS
INCHES
Min.
SG
B
Flanged
Upper Side/Btm
A
B
C
Flanged
Side/Side
A
B
C
B75 0.67
MILLIMETERS
Actuating
Levels
HL LL
NPT &
Socket Weld
A
B
C
Flanged
Upper Side/Btm
A
B
C
Flanged
Side/Side
A
B
C
1.93 2.61
8.94 4.22 23.06 12.56 7.69 26.69 13.21 7.69 27.34
C75 0.55
227 107
586
319
195 678 336
195
49
66
49
66
27
42
40
57
694
1.93 2.61
F75 0.55 11.06 5.75 26.19 14.78 9.19 29.92 15.39 9.19 30.53 1.08 1.66 281 146
Actuating
Levels HL LL
665
375
233 760 391
233
775
244 121
612
338
208 705 355
208
722
56
74
K75 0.39 12.06 5.75 27.14 15.56 9.19 30.64 16.21 9.19 31.29 1.77 2.39 306 146
689
395
233 778 412
233
795
44
60
L75 0.40
9.62 4.75 24.09 13.31 8.19 27.75 13.96 8.19 28.42 1.78 2.52 244 121
612
338
208 705 355
208
722
44
64
N75 0.32 12.06 5.75 27.14 15.56 9.19 30.64 16.21 9.19 31.29 1.81 2.49 306 146
689
395
233 778 412
233
306
45
63
n/a
n/a
G75 0.53
1.59 2.25
9.62 4.75 24.09 13.31 8.19 27.75 13.96 8.19 28.42
J75
0.48
S75 0.60
2.23 2.95
Consult Factory
n/a
n/a
Consult Factory
V75 0.74
8.82 4.22 23.20 12.56 7.68 26.94 13.21 7.68 27.79 1.94 2.69 224 107
589
319
195 684 336
195
706
49
68
Z75 0.68
9.51 4.75 24.09 13.31 8.18 27.89 13.96 8.18 28.54 1.69 2.59 242 121
612
338
208 708 355
208
725
43
66
Levels are ±0.25" (6 mm)
2
CARBON STEEL CHAMBERS WITH 2-INCH CONNECTIONS
INCHES
Min.
SG
NPT &
Socket Weld
A
B
C
Flanged
Upper Side/Btm
A
B
C
Flanged
Side/Side
A
B
C
B75 0.67
MILLIMETERS
Actuating
Levels
HL LL
NPT &
Socket Weld
A
B
C
Flanged
Side/Side
A
B
C
1.48 2.16
8.69 4.34 23.20 12.56 7.69 26.07 13.21 7.69 27.72
C75 0.55
221 110
589
319
195 662 336
195
G75 0.53
669
375
233 766 391
233
782
615
338
208 712 355
208
728
1.31 1.97
9.50 4.88 24.21 13.31 8.19 28.02 13.96 8.19 28.67
0.48
241 124
Actuating
Levels HL LL
37
54
41
59
19
34
33
50
49
67
704
1.64 2.36
F75 0.55 10.94 5.88 26.32 14.78 9.19 30.16 15.39 9.19 30.77 0.78 1.36 278 149
J75
Flanged
Upper Side/Btm
A
B
C
1.95 2.67
K75 0.39 11.94 5.88 27.32 15.56 9.19 30.94 16.21 9.19 31.59 1.59 2.21 303 149
694
395
233 786 412
233
802
40
56
L75 0.40
9.50 4.88 24.21 13.31 8.19 28.02 13.96 8.19 28.67 1.50 2.24 241 124
615
338
208 712 355
208
728
38
56
N75 0.32 11.94 5.88 27.32 15.56 9.19 30.94 16.21 9.19 31.59 1.63 2.31 303 149
694
395
233 786 412
233
802
40
58
n/a
n/a
S75 0.60
Consult Factory
n/a
n/a
Consult Factory
V75 0.74
8.49 4.34 23.27 12.56 7.68 27.34 13.21 7.68 27.99 1.88 2.63 216 110
591
319
195 694 336
195
711
48
67
Z75 0.68
9.31 4.87 24.16 13.31 8.18 28.16 13.96 8.18 28.81 1.44 2.25 236 124
614
338
208 715 355
208
732
37
57
Levels are ±0.25" (6 mm)
Housing
D
E
NEMA 1
4.70 5.00
(119) (127)
TYPE 4X/7/9
Group B
5.93
(151)
Min S.G. given is for single switch units with –1 materials of
construction only. Consult factory for other configurations.
Conduit Connections F
Switch actuating levels (HL & LL) are given for minimum specific
gravity materials of construction –1 and single switch units.
Consult factory for other configurations.
Electrical Switches
TYPE 4X/7/9: 1" NPT
Group B:
1" NPT
Pneumatic Switches
1
NEMA 1:
⁄4" NPT
3.87
(98)
NOTES:
1. Standard process connections are a combination of 1" NPT and
1" socket weld coupling.
2. Allow overhead clearance of 10 inches (254 mm) for cover removal.
3. All housings rotatable 360 degrees.
D
D
E
E
D
E
F
F
F
C
C
HL
HL
LL
LL
C
HL
A
A
LL
A
B
Series 75
Threaded and Socket Weld
Upper Side/Bottom
B
Series 75
Flanged Upper Side/Bottom
B
Series 75
Flanged Side/Side
3
DIMENSIONAL
SPECIFICATIONS
STAINLESS STEEL CHAMBERS WITH 1-INCH CONNECTIONS
INCHES
Min.
SG
NPT &
Socket Weld
A
B
C
Flanged
Upper Side/Btm
A
B
C
Flanged
Side/Side
A
B
C
MILLIMETERS
Actuating
Levels
HL LL
NPT &
Socket Weld
A
B
C
Flanged
Upper Side/Btm
A
B
C
Flanged
Side/Side
A
B
C
Actuating
Levels HL LL
B73
0.59 6.36 3.34 17.44 9.25 6.25 20.32 9.90 6.25 21.00 1.22 2.10 151
84
442
235
159
515 251 159 532
30
53
C75
0.60 8.50 3.61 22.06 11.56 6.68 25.12 12.21 6.68 25.75 2.75 3.62 216
92
560
294
170
638 310 170 654
70
92
J75
0.57 9.25 3.61 23.06 12.31 6.68 26.12 12.96 6.68 26.75 2.93 3.78 235
92
586
313
170
663 329 170 679
74
96
69
555
294
144
633 310 144 651
62
89
66
548
294
141
625 310 141 646
62
89
76
557
294
155
635 310 155 652
65
89
O75 0.85 8.50 2.71 21.87 11.56 5.68 24.93 12.21 5.68 25.62 2.44 3.50 216
O75 0.85 8.50 2.59 21.56 11.56 5.56 24.62 12.21 5.56 25.43 2.44 3.50 216
P75
0.75 8.50 3.09 21.93 11.56 6.12 25.00 12.21 6.12 25.68 2.56 3.50 216
Levels are ±0.25" (6 mm)
CARBON STEEL CHAMBERS WITH 1-INCH CONNECTIONS
INCHES
Min.
SG
NPT &
Socket Weld
A
B73 0.59
B
C
6.36 3.34 17.44
Flanged
Upper Side/Btm
A
B
C
Flanged
Side/Side
A
B
MILLIMETERS
Actuating
Levels C
HL
LL
NPT &
Socket Weld
A
9.25 6.25 20.32 9.90 6.25 21.00 1.22 2.10 151
B75 0.67
B
C
Flanged
Upper Side/Btm
A
B
C
84 442 235 159
A
B
C
251 159 532
2.56 3.24
8.69 3.80 22.69 11.56 6.69 25.56 12.21 6.69 26.21
C75 0.55
221
97 576 294 170
649
G75 0.53
706
366 208 721
668
329 183 685
2.25 2.92
9.44 4.33 23.44 12.31 7.19 26.31 12.96 7.19 26.96
0.48
240 110 595 313 183
Actuating
Levels HL
LL
30
53
65
82
69
87
44
59
57
74
73
91
310 170 666
2.72 3.44
F75 0.55 10.91 5.33 24.91 13.78 8.19 27.78 14.39 8.19 28.39 1.76 2.35 277 135 633 350 208
J75
515
Flanged
Side/Side
2.90 3.62
K75 0.39 11.69 5.33 25.69 14.56 8.19 28.56 15.21 8.19 29.21 2.15 2.77 297 135 653 370 208
754
386 208 742
54
70
L75 0.40
9.44 4.33 23.44 12.31 7.19 26.31 12.96 7.19 26.96 2.45 3.19 240 110 595 313 183
668
329 183 685
62
81
N75 0.32 11.69 5.33 25.69 14.56 8.19 28.56 15.21 8.19 29.21 2.17 2.86 297 135 653 370 208
754
386 208 742
55
72
54
70
S75 0.60 11.16 5.33 27.06
Consult Factory
2.13 2.78 283 135 687
Consult Factory
V75 0.74
9.02 4.15 23.27 11.56 6.68 25.81 12.21 6.68 26.46 2.63 3.38 229 105 591 294 170
656
313 170 672
69
86
Z75 0.68
9.77 4.68 24.16 12.31 7.18 26.70 12.96 7.18 27.35 2.38 3.19 248 119 614 313 182
678
329 182 695
60
81
Levels are ±0.25" (6 mm)
Housing
D
E
NEMA 1
4.70 5.00
(119) (127)
TYPE 4X/7/9
Group B
5.93
(151)
3.87
(98)
Conduit Connections F
Electrical Switches
TYPE 4X/7/9: 1" NPT
Group B:
1" NPT
Pneumatic Switches
1
NEMA 1:
⁄4" NPT
Min S.G. given is for single switch units with –1 materials of construction only. Consult factory for other configurations.
Switch actuating levels (HL & LL) are given for minimum specific
gravity materials of construction –1 and single switch units.
Consult factory for other configurations.
304 Stainless steel only.
316 Stainless steel only.
These dimensions increase by 2.19 inches (55 mm) with Series
HS switches with terminal blocks.
NOTES:
1. Standard process connections are a combination of 1" NPT and
1" socket weld coupling.
2. Allow overhead clearance of 10 inches (254 mm) for cover removal.
3. All housings rotatable 360 degrees.
4
DIMENSIONAL
INCHES
SPECIFICATIONS
(mm)
D
D
E
E
D
E
F
F
F
C
C
HL
LL
C
HL
LL
HL
A
LL
A
A
B
B
B
Series 75
Flanged Upper Side/Bottom
Series 75
Threaded and Socket Weld
Upper Side/Bottom
Series 75
Flanged Side/Side
D
D
E
E
D
6.25
➃
(158)
6.25
➃
(158)
E
F
F
6.25
➃
(158)
F
plugged
C
HL
➄
➄
F
➄
F plugged
F plugged
C
C
HL
HL
LL
A
A
LL
LL
A
B
B
B
Model B73
Threaded and Socket Weld
Upper Side/Bottom
Model B73
Flanged Upper Side/Bottom
Model B73
Flanged Side/Side
5
MODEL
SERIES
NUMBER
B73
Models available for quick shipment, usually within one week after factory
receipt of a complete purchase order, through the Expedite Ship Plan (ESP)
MODEL NUMBER CODE
Pressure Rating
psig @ ° F
bar @ ° C
100
450
38
232 Model
No.
Min.
SG
B73-1
0.59
Carbon steel chamber, 316 stainless steel float,
400 stainless steel trim
B73-2
0.59
B73-3
0.59
Carbon steel chamber, 316 stainless steel float,
316 stainless steel trim
304 stainless steel chamber, 316 stainless steel float,
304 stainless steel trim
B73-4
0.59
Materials of Construction
400
275
28
20
316 stainless steel chamber, 316 stainless steel float,
316 stainless steel trim
TANK CONNECTION TYPE AND SIZE
B20
1" NPT threaded side/bottom
B30
N30
1" socket weld side/bottom
1" 150 lb. flanged upper side/bottom
N40
1" 300 lb. flanged upper side/bottom
S30
1" 150 lb. flanged side/side
S40
1" 300 lb. flanged side/side
Models are limited to maximum temperature rating of selected
switch mechanism. See Switch Mechanism chart on page 9.
Process temperature based on +100° F (+38° C) ambient.
On steam & other condensing applications, temperature downrated to +400° F (+204° C) process @ +100° F (+38° C) ambient.
6
ELECTRIC SWITCH MECHANISM AND ENCLOSURE
Model B73-1 Only
Process
Temperature
Range °F (°C)
Switch Description
-40 to +250
(-40 to +121)
Series B Snap
-40 to +450
(-40 to +232)
Series C Snap
-40 to +250
(-40 to +121)
Series D Snap
Series F
Hermetically Sealed Snap
Series HS
Hermetically Sealed 5 amp
Snap with wiring leads
Series HS
Hermetically Sealed 5 amp
Snap with terminal block
Models B73-2, B73-3, B74-4
TYPE 4X/7/9 Aluminum Enclosure
One Set Point
Contacts
Class I, Div 1 Class I, Div 1
Groups
Groups
C&D
B, C & D
SPDT
DPDT
SPDT
DPDT
ATEX
Class I, Div 1 Class I, Div 1
Groups
Groups
C&D
B, C & D
ATEX
BKP
BNP
BKT
BNT
BAC
BBC
BKQ
BNQ
BKS
BNS
BA9
BB9
CKP
CNP
CKT
CNT
CAC
CBC
CKQ
CNQ
CKS
CNS
CA9
CB9
DKQ
DNQ
DKS
DNS
DA9
DB9
SPDT
n/a
DPDT
SPDT
FKP
FKT
FAC
FKQ
FKS
FA9
DPDT
FNP
FNT
FBC
FNQ
FNS
FB9
-50 to +450
(-46 to +232)
-50 to +450
(-46 to +232)
-50 to +450
(-46 to +232)
SPDT
n/a
HMC
HEK
n/a
DPDT
n/a
HMF
HET
n/a
SPDT
n/a
HM3
HM4
HA9
DPDT
n/a
HM7
HM8
HB9
PNEUMATIC SWITCH MECHANISM AND ENCLOSURE
Switch
Description
Series J
Bleed Type
Series K
Non-Bleed
Maximum
Supply
Pressure
psig
bar
Maximum
Process
Temperature
°F
°C
100
60
60
100
40
400
400
450
400
400
7
4
4
7
3
204
204
232
204
204
Bleed
Orifice
Diameter
inches mm
.063
.094
.055
—
—
1.6
2.3
1.4
—
—
Models with
Material of Construction
Code 1
Code 2, 3 or 4
NEMA 1
NEMA 1
JDG
JEG
JFG
—
KOG
JDE
JEE
JFE
KOE
—
7
MODEL
NUMBER
SERIES
with
75
Carbon
Steel
Chamber
Models available for quick shipment, usually within
one week after factory receipt of a complete purchase order, through the Expedite Ship Plan (ESP)
MODEL NUMBER CODE
Min. S.G. for models with Model Material of Construction Code
Code
1
2
B75
0.67
0.71
C75
0.55
0.59
F75
0.55
0.56
G75
0.53
0.56
J75
0.48
0.51
K75
0.39
0.40
L75
0.40
0.42
N75
0.32
0.33
S75
0.60
n/a
V75
0.74
0.81
Z75
0.68
0.71
Pressure Rating 100
1000
500
1000
750
400
600
300
450
1500
2240
2193
550
870
435
870
653
—
—
—
—
1275
1913
1913
psig @ ° F
750
716
400
800
600
250
375
185
280
1045
1455
1425
900 357
357
523
338
—
—
—
—
523
728
713
1000 138
138
200
130
—
—
—
—
n/a
n/a
n/a
38
69
34
69
52
28
41
21
31
103
154
151
288
60
30
60
45
—
—
—
—
88
132
132
bar @ ° C
399
49
28
55
41
17
26
13
19
72
100
98
482 25
25
36
23
—
—
—
—
36
50
49
538
10
10
14
9
—
—
—
—
n/a
n/a
n/a
MATERIALS OF CONSTRUCTION
1
2
Carbon steel chamber, 316 stainless steel float, 400 stainless steel trim
Carbon steel chamber, 316 stainless steel float, 316 stainless steel trim
TANK CONNECTION TYPE AND SIZE
Size
Type
Threaded
Side/Bottom
Socket Weld
Side/Bottom
Material
1"
11⁄2"
2"
CS
B20
C20
D20
CS
B20
C30
D30
Cage Mounting Flange Rating (lbs.)
Flanged Upper
Side/Bottom
Flanged
Side/Side
150
300
600
900 150
300
600
900 150
300
600
900 CS
N30
N40
N50
N60
P30
P40
P50
P60
Q30
Q40
Q50
Q60
CS
S30
S40
S50
S60
T30
T40
T50
T60
V30
V40
V50
V60
PNEUMATIC SWITCH MECHANISM AND ENCLOSURE
Switch
Description
Maximum
Supply
Pressure
psig
bar
Maximum
Bleed
Process
Orifice
Temperature
Diameter
°F
° C inches mm
Excluding
S75, V75 & Z75
NEMA 1
S75, V75 & Z75
NEMA 1
Series J
Bleed Type
100
60
60
7
4
4
400
400
700
204
204
371
.063
.094
.055
1.6
2.3
1.3
JDE
JEE
JFE
JKE
JLE
JME
Series K
Non-Bleed
100
7
400
204
—
—
KOE
KPE
Minimum specific gravity ratings apply only to single stage
units. Consult factory for two or three stage units.
Models are limited to maximum temperature rating of selected
switch mechanism. See Switch Mechanism Charts above.
Use caution when specifying carbon steel and stainless steel
for temperatures greater than +800° F (+427° C), as they
become sensitized.
S75, V75 & Z75 contain 17-7 ph float.
Valid for Models V75 & Z75 only.
Process temperature based on +100° F (+38° C) ambient.
HS and H1 switches can be used with only materials of construction code 1 on models S75, V75 & Z75.
On steam and other condensing applications, temperature
down-rated to +400° F (+204° C) process at +100° F (+38° C)
ambient.
8
See next page for Electric Switch Mechanism
and Enclosure codes.
ELECTRIC SWITCH MECHANISM AND ENCLOSURE
Switch
Description
Series B
Snap Switch
Series C
Snap Switch
Series D DC Current
Snap Switch
Series F
Hermetically Sealed
Snap Switch
Series HS
Hermetically Sealed
5-amp Snap Switch
with Wiring Leads
All Models with
Material of Construction Code 1
except Models S75, V75 & Z75
Process Temperature
Set
Contacts
TYPE 4X/7/9 Aluminum Enclosure
Range
Points
ATEX
ATEX
°F (°C)
Class I, Div 1 Class I, Div 1
Class I, Div 1 Class I, Div 1
Ex II 2 G EEx
Ex II 2 G EEx
Groups C&D
Group B
Groups C&D
Group B
d IIC T6
d IIC T6
1
BKA
BKJ
BCC
BKB
BKK
BC9
SPDT
2
BLA
BLJ
BDC
BLB
BLK
BD9
-40 to +250
3
BMA
BMJ
BEC
BMB
BMK
BE9
(-40 to +121)
1
BNA
BNJ
BFC
BNB
BNK
BF9
DPDT
2
BOA
BOJ
BGC
BOB
BOK
BG9
1
CKA
CKJ
CCC
CKB
CKK
CC9
SPDT
2
CLA
CLJ
CDC
CLB
CLK
CD9
-40 to +450
3
CMA
CMJ
CEC
CMB
CMK
CE9
(-40 to +232)
1
CNA
CNJ
CFC
CNB
CNK
CF9
DPDT
2
COA
COJ
CGC
COB
COK
CG9
1
DKB
DKK
DC9
DKB
DKK
DC9
SPDT
2
DLB
DLK
DD9
DLB
DLK
DD9
-40 to +250
3
DMB
DMK
DE9
DMB
DMK
DE9
(-40 to +121)
1
DNB
DNK
DF9
DNB
DNK
DF9
DPDT
2
DOB
DOK
DG9
DOB
DOK
DG9
1
FKA
FKJ
FCC
FKB
FKK
FC9
SPDT
2
FLA
FLJ
FDC
FLB
FLK
FD9
-50 to +750
(-46 to +399)
1
FNA
FNJ
FFC
FNB
FNK
FF9
DPDT
2
FOA
FOJ
FGC
FOB
FOK
FG9
1
HMJ
HMK
HMJ
HMK
SPDT
2
HMN
HMP
HMN
HMP
-50 to +550
N/A
N/A
(-46 to +288)
1
HMS
HMT
HMS
HMT
DPDT
2
HMY
HMZ
HMY
HMZ
Series HS
Hermetically Sealed
5-amp Snap Switch
with Terminal Block
-50 to +550
(-46 to +288)
Series H1
Hermetically Sealed
1-amp Snap Switch
with Wiring Leads
-50 to +750
(-46 to +399)
Series R
High Temperature
Snap Switch
-40 to +750
(-40 to +399)
Series 8
Hermetically Sealed
Snap Switch
-50 to +750
(-46 to +399)
Series 9
High Temperature
Hermetically Sealed
Snap Switch
-50 to +750
(-46 to +399)
Switch
Description
Series R
High Temperature
Snap Switch
Series 9
High Temperature
Hermetically Sealed
Snap Switch
All models with
Material of Construction Codes 2
and all Models S75, V75 & Z75
SPDT
1
HM3
HM4
HA9
HM3
HM4
HA9
DPDT
1
HM7
HM8
HB9
HM7
HM8
HB9
SPDT
1
HKJ
HKK
HKJ
HKK
HKN
HKP
RKB
RLB
RNB
ROB
8KB
8LB
8MB
8NB
8OB
9KB
9LB
9MB
9NB
9OB
RKK
RLK
RNK
ROK
8KK
8LK
8MK
8NK
8OK
9KK
9LK
9MK
9NK
9OK
N/A
DPDT
SPDT
DPDT
SPDT
DPDT
SPDT
DPDT
2
HKN
HKP
1
2
1
2
1
2
3
1
2
1
2
3
1
2
RKB
RLB
RNB
ROB
8KA
8LA
8MA
8NA
8OA
9KA
9LA
9MA
9NA
9OA
RKK
RLK
RNK
ROK
8KJ
8LJ
8MJ
8NJ
8OJ
9KJ
9LJ
9MJ
9NJ
9OJ
RC9
RD9
RF9
RG9
8CC
8DC
8EC
8FC
8GC
9CC
9DC
9EC
9FC
9GC
N/A
RC9
RD9
RF9
RG9
8C9
8D9
8E9
8F9
8G9
9C9
9D9
9E9
9F9
9G9
Process Cast Iron
Cast Iron
CS/Aluminum
CS/Aluminum
Set
Temp. Range Contacts
Class
I,
Div
1
Class
I,
Div
1
Class
I,
Div
1 Class I, Div 1
Points
NEMA 4X
NEMA 4X
°F (°C)
Groups C&D
Group B
Groups C&D
Group B
1
R1M
RKM
RKW
R1M
RKM
RKW
SPDT
2
R3M
RLM
RLW
R3M
RLM
RLW
-40 to +1000
(-40 to +538)
1
RDM
RNM
RNW
RDM
RNM
RNW
DPDT
2
REM
ROM
ROW
REM
ROM
ROW
1
9AD
9KD
9KV
9AM
9KM
9KW
SPDT
2
9BD
9LD
9LV
9BM
9LM
9LW
-50 to +1000
3
9CD
9MD
9MV
9CM
9MM
9MW
(-46 to +538)
1
9DD
9ND
9NV
9DM
9NM
9NW
DPDT
2
9ED
9OD
9OV
9EM
9OM
9OW
9
MODEL
NUMBER
SERIES
with
75
Stainless
Steel
Chamber
MODEL NUMBER CODE
Min. S.G. for models with Model Material of Construction Code
Code
3&4
C75
0.60
J75
0.57
O75
0.85
P75
0.75
Pressure Rating 100
500
400
500
400
550
435
—
435
—
psig @ ° F
750
900 400
385
225
—
400
385
225
—
1000 380
—
380
—
38
34
28
34
28
bar @ ° C
399
28
16
28
16
288
30
—
30
—
482 26
—
26
—
538 26
—
26
—
MATERIALS OF CONSTRUCTION
3
4
304 Stainless steel chamber, 316 stainless steel float, 316 stainless steel trim
316 Stainless steel chamber, 316 stainless steel float, 316 stainless steel trim
TANK CONNECTION TYPE AND SIZE
Size
11⁄2" 2" Type
Material
1"
Threaded
Side/Bottom
SS
B20
C20
D20
Socket Weld
Side/Bottom
SS
B30
C30
D30
Cage Mounting Flange Rating (lbs.)
150
300
600
900
150
300
600
900
Flanged Upper
Side/Bottom
SS
N30
N40
Consult Factory
Flanged
Side/Side
SS
S30
S40
Consult Factory
150
300
600
900
PNEUMATIC SWITCH MECHANISM AND ENCLOSURE
Switch
Description
Maximum
Supply
Pressure
psig
bar
Maximum
Bleed
Process
Orifice
Temperature
Diameter
°F
° C inches mm
NEMA 1
Series J
Bleed Type
100
60
60
7
4
4
400
400
700
204
204
371
.063
.094
.055
1.6
2.3
1.3
JDE
JEE
JFE
Series K
Non-Bleed
100
7
400
204
—
—
KOE
Minimum specific gravity ratings apply only to single stage
units. Consult factory for two or three stage units.
Models are limited to maximum temperature rating of selected
switch mechanism. See Switch Mechanism Charts above.
Use caution when specifying carbon steel and stainless steel
for temperatures greater than +800° F (+427° C), as they
become sensitized.
The O75 and P75 are not available with 1 ⁄ " and 2" process
1
2
connections.
Process temperature based on +100° F (+38° C) ambient.
On steam and other condensing applications, temperature
down-rated to +400° F (+204° C) process at +100° F (+38° C)
ambient.
See next page for Electric Switch Mechanism
and Enclosure codes.
10
ELECTRIC SWITCH MECHANISM AND ENCLOSURE
Switch
Description
Series B
Snap Switch
Series C
Snap Switch
Series D DC Current
Snap Switch
Series F
Hermetically Sealed
Snap Switch
Series HS
Hermetically Sealed
5-amp Snap Switch
with Wiring Leads
All models
Process Temperature
Set
Contacts
TYPE 4X/7/9 Aluminum Enclosure
Range
Points
ATEX
°F (°C)
Class I, Div 1 Class I, Div 1
Ex II 2 G EEx
Groups C&D
Group B
d IIC T6
1
BKB
BKK
BC9
SPDT
2
BLB
BLK
BD9
-40 to +250
3
BMB
BMK
BE9
(-40 to +121)
1
BNB
BNK
BF9
DPDT
2
BOB
BOK
BG9
1
CKB
CKK
CC9
SPDT
2
CLB
CLK
CD9
-40 to +450
3
CMB
CMK
CE9
(-40 to +232)
1
CNB
CNK
CF9
DPDT
2
COB
COK
CG9
1
DKB
DKK
DC9
SPDT
2
DLB
DLK
DD9
-40 to +250
3
DMB
DMK
DE9
(-40 to +121)
1
DNB
DNK
DF9
DPDT
2
DOB
DOK
DG9
1
FKB
FKK
FC9
SPDT
2
FLB
FLK
FD9
-50 to +750
(-46 to +399)
1
FNB
FNK
FF9
DPDT
2
FOB
FOK
FG9
1
HMJ
HMK
SPDT
2
HMN
HMP
-50 to +550 N/A
(-46 to +288)
1
HMS
HMT
DPDT
2
HMY
HMZ
Series HS
Hermetically Sealed
5-amp Snap Switch
with Terminal Block
-50 to +550 (-46 to +288)
Series H1
Hermetically Sealed
1-amp Snap Switch
with Wiring Leads
-50 to +750
(-46 to +399)
Series R
High Temperature
Snap Switch
-40 to +750
(-40 to +399)
Series 8
Hermetically Sealed
Snap Switch
-50 to +750
(-46 to +399)
Series 9
High Temperature
Hermetically Sealed
Snap Switch
-50 to +750
(-46 to +399)
Switch
Description
Series R
High Temperature
Snap Switch
Series 9
High Temperature
Hermetically Sealed
Snap Switch
SPDT
1
HM3
HM4
HA9
DPDT
1
HM7
HM8
HB9
SPDT
1
HKJ
HKK
DPDT
2
HKN
HKP
1
2
1
2
1
2
3
1
2
1
2
3
1
2
RKB
RLB
RNB
ROB
8KB
8LB
8MB
8NB
8OB
9KB
9LB
9MB
9NB
9OB
RKK
RLK
RNK
ROK
8KK
8LK
8MK
8NK
8OK
9KK
9LK
9MK
9NK
9OK
N/A
SPDT
DPDT
SPDT
DPDT
SPDT
DPDT
RC9
RD9
RF9
RG9
8C9
8D9
8E9
8F9
8G9
9C9
9D9
9E9
9F9
9G9
Process Cast Iron
CS/Aluminum
Set
Temp. Range Contacts
Class
I,
Div
1 Class I, Div 1
Points
NEMA 4X
°F (°C)
Groups C&D
Group B
1
R1M
RKM
RKW
SPDT
2
R3M
RLM
RLW
-40 to +1000
(-40 to +538)
1
RDM
RNM
RNW
DPDT
2
REM
ROM
ROW
1
9AM
9KM
9KW
SPDT
2
9BM
9LM
9LW
-50 to +1000
3
9CM
9MM
9MW
(-46 to +538)
1
9DM
9NM
9NW
DPDT
2
9EM
9OM
9OW
11
QUALITY
The quality assurance system in place at
Magnetrol guarantees the highest level of quality
throughout the company. Magnetrol is committed to providing full customer satisfaction both
in quality products and quality service.
Magnetrol’s quality assurance system is registered to ISO 9001 affirming its commitment to
known international quality standards providing
the strongest assurance of product/service
quality available.
Several Sealed External Cage Level Switches are
available for quick shipment, usually within one
week after factory receipt of a purchase order,
through the Expedite Ship Plan (ESP).
ESP service may not apply to orders of ten units
or more. Contact your local representative for
lead times on larger volume orders, as well as
other products and options.
ESP
Expedite
Ship
Plan
To take advantage of ESP, match the color coded
model number codes in the selection charts
(standard dimensions apply).
WARRANTY
All Magnetrol mechanical level and flow controls
are warranted free of defects in materials or
workmanship for five full years from the date of
original factory shipment.
If returned within the warranty period; and, upon
factory inspection of the control, the cause of the
claim is determined to be covered under the
warranty; then, Magnetrol will repair or replace
the control at no cost to the purchaser (or owner)
other than transportation.
Magnetrol shall not be liable for misapplication,
labor claims, direct or consequential damage or
expense arising from the installation or use of
equipment. There are no other warranties
expressed or implied, except special written
warranties covering some Magnetrol products.
5300 Belmont Road • Downers Grove, Illinois 60515-4499 • 630-969-4000 • Fax 630-969-9489 • www.magnetrol.com
145 Jardin Drive, Units 1 & 2 • Concord, Ontario Canada L4K 1X7 • 905-738-9600 • Fax 905-738-1306
Heikensstraat 6 • B 9240 Zele, Belgium • 052 45.11.11 • Fax 052 45.09.93
Regent Business Ctr., Jubilee Rd. • Burgess Hill, Sussex RH15 9TL U.K. • 01444-871313 • Fax 01444-871317
Copyright © 2010 Magnetrol International, Incorporated. All rights reserved. Printed in the USA.
Performance specifications are effective with date of issue and are subject to change without notice.
Magnetrol & Magnetrol logotype are registered trademarks of Magnetrol International.
BULLETIN: 46-115.23
EFFECTIVE: August 2010
SUPERSEDES: July 2008
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