MD-MT Pressure Switches Pressure Difference Switches Vacuum Switches
Product Information
The product is a range of pressure switches that includes
pressure difference switches and vacuum switches. The pressure
range for the switches is from 1.5 mbar to 600 bar. The product is
manufactured by Kaustubha Udyog, an ISO9001:2008 certified company
based in Pune, India. The product is available in various ranges
and configurations as per the customer’s requirements. The product
comes with a certificate number FM72815 and is a part of the MT
High Range DP Catalogue. The product can be ordered with
non-standard allocation, model, cable entry size, switch type,
range code, microswitch type, pressure port material/size, and
diaphragm as per the customer’s requirement.
Product Usage Instructions
The product can be used in various industrial applications to
monitor pressure levels. The pressure switches can be installed in
the desired location using the mounting holes provided in the
installation drawing. The pressure ports available are 1/4 BSP (F)
and 1/4 NPT (F). The cable entry size is 1/2 NPT (F) or M20x1.5.
Before installation, ensure that the wetted parts mentioned in
italics are compatible with the medium being monitored.
The range selection table provides information on the different
ranges available for the product and the maximum working pressure
for each range. The differential value for each range is mentioned
in the table and may vary according to the pressure range selected
and microswitch type. For actual values of differential, please
contact the sales office.
When using 2SPDT switching arrangement, both microswitches may
not actuate and/or deactuate at the same point. A small stage gap
may be observed, normally up to +/- 5% FSR (depending on range
code). The On-Off differential (hysterisis) typically tends to be
at least double of those published for 1SPDT pressure switches. If
actuation and/or deactuation at the same point is a critical part
of operation, then it can be achieved by using a separate DPDT
relay. This relay will need a separate power supply for its
coil.
To order the product, the customer needs to specify the
non-standard allocation, model, cable entry size, switch type,
range code, microswitch type, pressure port material/size, and
diaphragm as per their requirement.
PRESSURE SWITCHES PRESSURE DIFFERENCE SWITCHES
VACUUM SWITCHES From 1.5 mbar to 600 bar
MT High Range DP CATALOGUE
Certificate No.: FM72815 Kaustubha Udyog AN ISO9001:2008 COMPANY
S. No. 36/1/1, Sinhgad Road, Vadgaon Khurd, Near Lokmat Press, Pune 411 041 INDIA Tel. : +91-(0) 20-24393577 / 24393877 Telefax : +91-(0) 20-24393577 / 25460486 Email : [email protected]
Website : http://www.orion-instruments.io
57
1
Bulletin No. KA220802
MD/MT HIGH RANGE DP MD
PRESSURE CAPSULE DETAILS
3
2
Note : wetted parts are mentioned in italics.
INSTALLATION DRAWING 147.0
(5.78)
Set Screw Cap
112.5 (4.43)
130.0 (5.11)
No. Description 1. Pressure Housing (SS) 2. Diaphragm (SS or PTFE®)
3. Plunger (SS)
1
4. O-Ring (Viton)
5. Disc (Al)
4
5
62 (2.44)
20 (0.78)
71 (2.79) 78 (3.07)
161 (6.33)
Mounting Holes
2 Nos, Ø6.5 0.25
High Pressure Port
37 (1.45)
75Bulletin No. KA220802
Cable Entry 1/2″ NPT Threads (Options Available) Low pressure Port
2
L
Pressure port
1/4″ BSP (F)
30
(1.18)
APPROX. DIMENSIONS IN
mm inches
PRESSURE CAPSULE DETAILS
HIGH RANGE DP MD/MT MT
3 2
Note : wetted parts are mentioned in italics.
INSTALLATION DRAWING
98 (3.85)
No. Description 1. Pressure Housing (SS) 2. Diaphragm (PTFE®) 3. Plunger (SS) 4. O-Ring (Viton) 5. Disc (Al)
1 4
5
*Pressure ports are brazed with flange
Mounting Holes
2 Nos. Ø7.0 (0.27)
149 (5.86)
130 (5.11)
51 (2.0) 31 (1.22)
87 (3.42) 51 (2.0) 31 (1.22)
165 (6.49)
48 (1.88)
Cable Entry 1/2″NPT (F) or M20x1.5
High Pressure Port 1/4″ NPT (F)
3
Low Pressure Port 1/4″ NPT (F)
50.8 Sq. (2.0)
APPROX. DIMENSIONS IN
mm inches
Bulletin No. KA220802
MD/MT HIGH RANGE DP
RANGE SELECTION TABLE
Range Code D01
Range bar (psi) 0.1 – 1.0 (1.45 – 14.50)
Differential* bar (psi)
Approximate Maximum for “A1″
microswitch
0.12 (1.74)
Maximum Working Pressure
bar (psi) 70
(1015.26)
D02
0.2 – 1.5 (2.90 – 21.76)
0.20 (2.90)
70 (1015.26)
D03
0.2 – 2.6 (2.90 – 37.71)
0.20 (2.90)
70 (1015.26)
D04
0.2 – 3.6 (2.90 – 52.21)
0.40 (5.80)
70 (1015.26)
D07
0.5 – 7.0 (7.25 – 101.50)
0.80 (11.60)
70 (1015.26)
D10
0.5 – 10.0 (7.25 – 145.04)
1.00 (14.50)
70 (1015.26)
D15
1.0 – 15.0 (14.50 – 217.71)
1.50 (21.75)
70 (1015.26)
D30
5.0 – 25.0 (72.52 – 362.6)
2.00 (29.00)
70 (1015.26)
Note:
1. The minimum differential increases with the setpoint. The differential values mentioned in the above table are approximate maximum for FSR. The differential value will vary according to the pressure range selected and microswitch type. For actual values of differential please contact sales office.
2. When using 2SPDT switching arrangement, both microswitches may not actuate and/or deactuate at the same point. A small stage gap, normally upto +/- 5% FSR (depending on range code) may be observed. The On-Off differential (hysterisis) typically tends to be atleast double of those published for 1SPDT pressure switches.
If actuation and/or deactuation at same point is critical part of operation, then it can be achieved by using a separate DPDT relay. This relay will need a separate power supply for it’s coil.
Bulletin No. KA220802
4
HOW TO ORDER INDUSTRIAL HIGH RANGE DP SWITCHES
5
HIGH RANGE DP MD/MT
Group 1
Non standard allocation
Group 2 Model
Group 3 Cable Entry Size
Group 4 Switch Type
Group 5
Range Code (values in bar)
Group 6
Microswitch Type
Group 7
Pressure Port Material / Size
Group 8 Diaphragm
Reserved for non-standard options not covered in catalogue. Will be given by manufacturer, only after agreement of supply details with customer.
MD = Industrial pressure switch with IP66 rated enclosure as per IS/IEC 60529
MT = Industrial pressure switch with IP66 rated enclosure as per IS/IEC 60529
1 = Al. enclosure ½” NPT threads *2 = Al. enclosure ¾” NPT threads 3 = Al. enclosure M20 X 1.5 threads 7 = SS enclosure, ½” NPT threads *8 = SS enclosure, ¾” NPT threads 9 = SS enclosure, M20 X 1.5 threads
*Not available for MT model For dual cable entry contact Sales Office
DF1 = pressure D01 =
difference switch, (0.1 – 1.0)
fixed differential without scale
DF2 = pressure difference switch, fixed differential with
D02 (0.1 – 1.5) D03 = (0.2 – 2.6)
scale in bar
D04 =
DF3 = pressure (0.2 – 3.6)
difference switch, fixed differential with scale in psi
D07 = (0.5 – 7.0)
*DA1 = pressure D10 = difference switch, (0.5 – 10.0)
adjustable differential D15 =
without scale
(1.0 – 15.0)
*DA2 = pressure difference switch,
adjustable differential
D30 = (5.0 – 25.0)
with scale in bar
*DA3 = pressure difference switch,
adjustable differential
with scale in psi
*Available with A6, A9 & B9 (in group 6) only
A1 = General purpose microswitch, rated at 15 A; 250 VAC
*A6 = Adjustable deadband
*A7 = 2SPDT switching elements
*A8 = General purpose microswitch
*A9 = General purpose microswitch
*B7 = 2SPDT Switching Elements
*B9 = 2SPDT Switching Elements for adjustable differential
S1 = SS316 / ¼” BSP(F)
S2 = SS316 / ¼” NPT(F)
H1 = Hastelloy C / ¼” BSP(F)
H2 = Hastelloy C / ¼” NPT(F)
N1 = Monel / ¼” BSP(F)
N2 = Monel / ¼” NPT(F)
0 = Neoprene 1 = PTFE 2 = SS 316L 3 = Hastelloy C 4 = Monel
* For detailed specifications of microswitches, please refer note under Range Selection Table
More options available. Please contact sales office.
For additional wetted parts please contact sales office
eg. A high range pressure difference industrial switch, with ½” NPT cable entry in aluminium housing as 1SPDT pressure switch, fixed differential without scale, having 0.1 bar to 1 bar pressure range, with 15 Amp. microswitch, SS316 pressure housing with ¼” BSP port size & neoprene diaphragm shall be specified by
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
Group 8
MD
1
DF1
D01
A1
S1
0
Please specify full model number to avoid ambiguity.
Bulletin No. KA220802
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