MAGNETROL B40-HC40-RNM

B40-P & B40-H
Liquid Level Switch
ASME B31.1 Compliant
D E S C R I P T I O N
Magnetrol B40-P & B40-H liquid level switches are
utilized in high pressure, high temperature service
conditions. They are designed, constructed and certified
to the ASME B31.1 Power Piping code.
F E A T U R E S
• Choices of chamber materials are carbon steel,
stainless steel and chrome-moly
• 300 series stainless steel float
• Choice of switch mechanism:
Dry contact
Hermetically sealed
• Minimum specific gravity 0.65
• Choice of switch mechanism enclosure:
TYPE 4X polymer coated steel
TYPE 4X/7/9 Class I, Div. 1, Groups C & D,
polymer coated aluminum or cast iron
TYPE 4X/7/9 Class I, Div. 1, Group B,
polymer coated aluminum or cast iron
• Choice of tank connection:
1" butt welds
A P P L I C A T I O N S
• Accumulators
• Receivers
1
1" or 1 ⁄2" socket welds
O P T I O N S
• ATEX housing
• Flanged connections
• Temperature extensions
• Low specific gravity calibration
• Additional QC testing
• Flash tanks
• Knock-out drums
• Storage tanks
• Separators
• Drip Legs
T E C H N O L O G Y
B40 level switches employ permanent magnetic force as
the link between the float and the switching element. As
the pivoted float follows liquid level changes, it moves a
magnetic sleeve Œ into or out of the field of a switch
actuating magnet  causing switch operation. A nonmagnetic barrier tube Ž effectively isolates the switch
mechanism from the controlled liquid.
Snap
Switch
Pivot
3
2
1
Tension Spring
Swing-In Position
Float
Pivots
A G E N C Y
A P P R O V A L S
AGENCY
APPROVED MODEL
APPROVAL CLASSES
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, 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
Low Voltage Directive 2006/95/EC
Per Harmonized Standard:
EN 61010-1/1993 & Amendment No. 1
Installation Category II
Pollution Degree 2
CSA
ATEX / IEC Ex Œ
CE
Œ 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.
2
Maximum Process
Temperature
Temperature
Classification
< 85° C
T6
< 100° C
T5
< 135° C
T4
< 200° C
T3
< 300° C
T2
< 450° C
T1
These units are in conformity with IECEx KEM 05.0020X
Classification Ex d IIC T6
Tambient -40° C to +70° C
S P E C I F I C A T I O N S
S W I T C H
M E C H A N I S M S
A N D
SERIES C, D, R & S DRY CONTACT SWITCHES
• Designed for AC and DC current applications
• Process temperatures to +1000° F (+538° C)
E N C L O S U R E S
SERIES F, HS, 8 & 9 HERMETICALLY SEALED SWITCHES
• Ideal for use in salt and other corrosive atmospheres
• Positively pressurized capsule for entire mechanism
and contacts
• Process temperatures to +1000° F (+538° C)
TYPE 4X/7/9 Cast Iron Enclosure
TYPE 4X Carbon Steel Enclosure
TYPE 4X/7/9 Aluminum Enclosure
SWITCH ENCLOSURE
• TYPE 4X blue polymer coated carbon steel, weather
resistant for non-hazardous areas
• TYPE 4X/7/9 blue polymer coated aluminum and
cast iron enclosures
• Designed to meet Class I, Div. 1 Groups C & D and
Class I, Div. 1 Group B
A S M E
B 3 1 . 1
C O N S T R U C T I O N
PRODUCT DESIGN
Pressure vessels are designed within code specified
stress limits. Design calculations, design prints and weld
qualifications are available for audit. All chamber branch
and circumferential weld joints are designed to achieve
FULL penetration.
WELDING
All welding is performed by qualified welders and per
procedures required by the ASME Boiler Pressure Vessel
Code Sec. IX. Welds are visually inspected for FULL
penetration. All other non-destructive examination is
performed per ANSI B31.1.
MATERIALS OF CONSTRUCTION
All pressure-retaining materials are procured with
Certificates of Conformance to assure compliance of
components with required standards.
HYDROSTATIC TEST
All chambers are hydrostatically tested at 1.5 times the
design pressure.
3
B A S I C
Voltage
120 VAC
240 VAC
24 VDC
120 VDC
240 VDC
E L E C T R I C A L
Switch Series and Non-Inductive Ampere Rating
F
HS
R
S/AC
S/DC
8
C
D
15.00
15.00
10.00
1.00
0.50
10.00
—
10.00
10.00
3.00
2.50
—
4.00
0.30
—
5.00
5.00
5.00
0.50
0.25
1.00
1.00
1.00
0.40
—
D I M E N S I O N A L
I N C H E S
R A T I N G S
15.00
15.00
10.00
1.00
0.50
10.00
—
10.00
4.00
3.00
9
1.00
—
3.00
—
—
—
—
0.50
—
—
S P E C I F I C A T I O N S
( M M )
5.93
(150)
3.87
(98)
Rotation Clearance
8.46
(214)
10.12
Electrical (257)
Connection
Plug
1 1⁄2" Socket Weld
8.50
(215)
7.19
(182)
4.75
(121)
Rising Level
6.62
(168) CL
9.50
(241)
0.50 (13)
0.50 (13)
Falling Level
Rotation Clearance
7.56
(192)
11/2" Socket Weld
Electrical
Connection
19.62 (498)
5.93
(150)
3.87 (98)
8.46
(214)
10.12
(257)
B40-PC30
Plug
Rotation Clearance
11/2" Socket Weld
9.50
(241)
5.93
(150)
A
3.87 (98)
6.63
(168) CL
7.19
(132)
5.06
(129)
Rising Level
0.50 (13)
0.50 (13)
Falling Level
8.46
C
(214)
10.12
D
(257)
Electrical
Connection
11/2" Socket Weld
25.63 (651)
Plug 1" Socket Weld
B40-PC40 and B40-HC40
7.19
(132)
5.56
(141)
4.18
(106)
CL
4.15
(105)
Rising Level
0.50 (13)
0.50 (13)
Falling Level
1" Socket Weld
19.88 (504)
B40-PC20
4
8.30
(210)
7.19
(182)
10.56
(268)
10.12
(257)
D I M E N S I O N A L
I N C H E S
S P E C I F I C A T I O N S
( M M )
5.93
(150)
3.87 (98)
Rotation Clearance
8.46
(214)
10.12
(257)
Electrical
Connection
Plug
8.00 (203)
1" Schedule 80 Weldolet
7.19
(182)
3.90
(99)
Rising Level
CL
0.50 (13)
0.50 (13)
5.56
(141)
Falling Level
3.90
(99)
1" Schedule 80 Weldolet
8.18 (208)
20.88 (530)
B40-HF30 and B40-PF30
5.93
(150)
8.46
(214)
3.87 (98)
Rotation Clearance
10.12
(257)
Electrical
Connection
Plug
8.00 (203)
1" Sockolet
7.19
(182)
4.15
(105)
Rising Level
CL
0.50 (13)
0.50 (13)
5.56
(141)
Falling Level
4.15
(105)
1" Sockolet
8.18 (208)
NOTES:
20.88 (530)
B40-PB60 and B40-HB60
1. Allow 8 inches (203 mm) overhead clearance for cover removal.
2. Maximum ambient temperature at switch head should not
exceed +140° F (+60° C).
5
M O D E L
N U M B E R
BASIC MODEL
B40-H
B40-H Liquid Level Switch for Temperatures Above +750° F (+399° C)
MATERIALS OF CONSTRUCTION/PRESSURE RATING PSI (BAR)
Chamber Material
Float
Material
F30
Tank
Connection
Minimum
S.G.
750
800
1000
1552
(107)
1510
(104)
661
(46)
3169
(218)
3129
(216)
3011
(208)
1" butt-weld
P11/F11
Chrome-Moly
B60
C40
Temperature °F (°C)
321/347 SSŒ
A312/A479
T316/316L SS
1" socket weld
0.65
11/2" socket weld
ELECTRIC SWITCH MECHANISM AND ENCLOSURE FOR MODEL B40-HXXX ONLY
Switch
Description
Process
Temperature
Range 
Series R
Snap Switch
-40° to +1000° F
(-40° to +538° C)
Series 9
Hermetically
Sealed Snap
Switch
-50° to +1000° F
(-46° to +538° C)
CS/Aluminum
Cast Iron
Class I, Div 1,
Groups C & D
Class I, Div 1,
Group B
R1M
RKM
RKW
DPDT
RDM
RNM
RNW
SPDT
9AM
9KM
9KW
DPDT
9DM
9NM
9NW
One Set
Point
TYPE 4X
SPDT
Œ Float material based on availability. Both 321SS and 347SS
are stabilized austenitic stainless steels.
 Consult factory for TYPE 4X/7/9 cast iron housings.
Ž Aluminum enclosure limited to +750° F (+399° C) in
hazardous locations.
 Process temperature based on +100° F (+38° C) ambient.
 On steam applications, temperature down rated to +400° F
(+204° C) process at +100° F (+38° C) ambient.
B
6
4
0
H
M O D E L
N U M B E R
BASIC MODEL
B40-P
B40-P Liquid Level Switch for Temperatures Up To and Including +750° F (+399° F)
MATERIALS OF CONSTRUCTION/PRESSURE RATING PSI (BAR)
Chamber Material
Float
Material
Tank
Connection
F30
Minimum
S.G.
Temperature °F (°C)
100
500
750
1573
(108)
1573
(108)
1552
(107)
1444
(100)
1444
(100)
1251
(86)
1" butt-weld
P11/F11
Chrome-Moly
B60
1" socket weld
321/347 SSŒ
C30
A105/A106
Carbon Steel
C40
A312/A479
T316/316L SS
11⁄2" socket weld
3700
(225)
3543
(244)
3169
(218)
C20
A105/A106
Carbon Steel
1" socket weld
1335
(92)
1335
(92)
1157
(80)
11⁄2" socket weld
0.65
ELECTRIC SWITCH MECHANISM AND ENCLOSURE FOR MODEL B40-PXXX ONLY
Switch Description
Process
Temperature
Range 
TYPE 4X/7/9 Aluminum Enclosure Ž
One
ATEX
Set Class I, Div. 1 Class I, Div. 1
Ex II 2 G EEx
Point Groups C & D
Group B
d IIC T6
-40° to +450° F SPDT
(-40° to +232° C) DPDT
Series D Snap Switch for
-40° to +250° F SPDT
DC Current Applications
(-40° to +121° C) DPDT
Series F Snap Switch
-50° to +750° F SPDT
Hermetically Sealed
(-46° to +399° C) DPDT
Series HS 5 amp Snap Switch
-50° to +400° F SPDT
Hermetically Sealed
(-46° to +204° C) DPDT
w/Terminal Block 
Series HS 5 amp Snap Switch
-50° to +400° F SPDT
Hermetically Sealed
(-46°
to +204° C) DPDT
w/Wiring Leads 
-40° to +750° F SPDT
Series R Snap Switch
(-40° to +399° C) DPDT
Series S Snap Switch for
-40° to +550° F SPDT
AC Current Applications
(-40° to +288° C) DPDT
Series S Snap Switch for
-40° to +250° F SPDT
DC Current Applications
(-40° to +121° C) DPDT
Series 8 Hermetically
-50° to +750° F SPDT
Sealed Snap Switch
(-46° to +399° C) DPDT
Series 9 Hermetically
-50° to +750° F SPDT
Sealed Snap Switch
(-46° to +399° C) DPDT
Series C Snap Switch
B
4
0
CKB
CNB
DKB
DNB
FKB
FNB
HM3
CKK
CNK
DKK
DNK
FKK
FNK
HM4
CC9
CF9
DC9
DF9
FC9
FF9
HA9
HM7
HM8
HB9
HMJ
HMK
—
HMS
RKB
RNB
SKB
SNB
SLB
SOB
8KB
8NB
9KB
9NB
HMT
RKK
RNK
SKK
SNK
SLK
SOK
8KK
8NK
9KK
9NK
—
RC9
RF9
SA9
SB9
SC9
SF9
8C9
8F9
9C9
9F9
P
7
Q U A L I T Y
The quality assurance system in place at
Magnetrol guarantees the highest level of
The Magnetrol quality assurance system is
registered to ISO 9001 affirming its com-
quality throughout the company. Magnetrol
is committed to providing full customer
satisfaction both in quality products and
mitment to known international quality
standards providing the strongest assurance
of product/service quality available.
quality service.
W A R R A N T Y
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 © 2011 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.
CSA logotype is a registered trademark of Canadian Standards Association.
BULLETIN: 46-128.3
EFFECTIVE: May 2009
SUPERCEDES: October 2007