We have various type of Pressure Switches based on sensing elements - * Diaphragm operated Pressure Switches * Piston operated Pressure Switches. Based on type of enclosures, also various options in Pressure Switches are available - * Dust proof Pressure Switches (IP40) * Weatherproof Pressure Switches ( IP54 Pressure Switches, IP65 Pressure Switches, IP66 Pressure Switches) * Exproof Pressure Switches ( Flameproof Pressure Switches to group IIA & IIB, Flameproof Pressure Switches to group IIC) Based on type of type of Micro Switches also there are varieties - * Fixed Differential type Pressure Switches * Adjustable Differential type Pressure Switches. * 2 SPDT type Pressure Switches These type of Switches are available in Weatherproof and as well as Flameproof versions. All these Pressure Switches are used interlocks & annunciation purpose. We also have High proof Pressure Switches, which are used for applications where the process pressures are very high than the set pressure. We have Air Relay Pressure Switches can be used in Flamable areas or, when only air supply is available and electrical supply is not present.

1. MT Large Bore High Range
Pressure Switches
C A T A L O G U E
BULLETIN NO. : KA161209
Website : http://www.orion-instruments.com
Kaustubha Udyog AN ISO9001:2008 COMPANY
S. No. 36/1/1, Sinhgad Road, Vadgaon Khurd,
Near Lokmat Press, Pune 411 041 INDIA
Tel.
Telefax
Email
: +91-(0) 20-24393577 / 24393877
: +91-(0) 20-24393577 / 25460486
: pressure@vsnl.com
PRESSURE SWITCHES
PRESSURE DIFFERENCE SWITCHES
VACUUM SWITCHES
From 1.5 mbar to 600 bar
Certificate No.: FM72815

2. LARGE BORE HIGH RANGE PRESSURE SWITCHES
75
BULLETIN NO. : KA161209
MT
2
INSTALLATION DRAWING
APPROX. DIMENSIONS IN
mm
inches
PRESSURE CAPSULE DETAILS
Note : wetted parts are mentioned in italics. *Presure ports are brazed with flange
98.0
(3.85)
Mounting Holes, Ø7
2 NOS
31
(1.22)
51
(2.0)
87
(3.42)
145
(5.70)
48.0
(1.88)
Cable Entry
1/2" NPT or
M20x1.5
51
(2.0)
149
(5.86)
18
(0.70)
31
(1.22)
130.0
(5.11)
1
2
3
Description
Pressure housing (SS316)
Diaphragm ( )
Plunger
SS316
(SS316)
No.
1.
2.
3.
25
(0.98)
1" BSP

3. LARGE BORE HIGH RANGE PRESSURE SWITCHES MT
75
BULLETIN NO. : KA161209
3
RANGE SELECTION TABLE
*Minimum differential increases with setpoint (Graphs available on request), results for neoprene diaphragm.
H01
H02
H03
H04
H07
H10
H15
H30
0.1 - 1.0
(1.45 - 14.50)
0.1 - 1.5
(1.45 - 21.76)
0.2 - 2.6
(2.90 - 37.71)
0.2 - 3.6
(2.90 - 52.21)
0.5 - 7.0
(7.25 - 101.50)
0.5 - 10.0
(7.14 - 142.86)
1.0 - 15.0
(14.29 - 214.29)
5.0 - 25.0
(71.43 - 357.14)
Differential* bar (psi)
12
(171.43)
12
(171.43)
12
(171.43)
12
(171.43)
12
(171.43)
25
(357.14)
25
(357.14)
35
(500.00)
Range Code Range bar (psi) Maximum Working
Pressure bar (psi)
0.10
(1.43)
0.20
(2.86)
0.20
(2.86)
0.20
(2.86)
0.40
(5.72)
0.60
(8.58)
0.60
(8.58)
0.80
(11.44)
Approximate
Maximum
for "A8"
microswitch
Note: Welded diaphragm also available as shown

4. LARGE BORE HIGH RANGE PRESSURE SWITCHES
75
BULLETIN NO. : KA161209
MT
4
HOWTOORDERINDUSTRIALLARGEBOREHIGHRANGEPRESSURESWITCHES
Nonstandard
allocation
ModelCableEntrySizeSwitchTypeRangeCode
(valuesinbar)
Microswitch
Type
Diaphragm
Group1Group2Group3Group4Group5Group6Group8Group7
0=
Neoprene
1=
Teflon
2=
SS316L
4=
Monel
MT=
Industrial
pressureswitch
withdiecast
Aluminium
enclosureto
IP66asper
IS2147
1=
Al.head
½"NPTthreads
3=
Al.head
M20X1.5
threads
PF2=
pressureswitch,
fixeddifferential
withscaleinbar
PF3=
pressureswitch,
fixeddifferential
withscaleinpsi
H01=
(0.1-1.0)
H02
(0.1-1.5)
H03=
(0.2-2.6)
H04=
(0.2-3.6)
H07=
(0.5-7.0)
H10=
(0.5-10.0)
H15=
(1.0-15.0)
H30=
(5.0-25.0)
Group1Group2Group3Group4Group5Group6Group8Group7
eg.Industrialswitchwith½"NPTcableentryinaluminiumhousingas1SPDTpressureswitch,fixdifferentialwithscalehaving0.1barto1barpressure
range,with15Amp.microswitch,SS316pressurehousingwith¼”BSPportsize&neoprenediaphragmshallbespecifiedby
Pleasespecifyfullmodelnumbertoavoidambiguity.
MT1PF2H01A10S3
Reservedfor
non-standard
optionsnot
coveredin
catalogue.Will
begivenby
manufacturer,
onlyafter
agreementof
supplydetails
withcustomer.
A1=General
purposemicroswitch
ratedat15A;250
VAC
General
purposemicroswitch
ratedat5A;250
VAC
*A2=Hermetically
sealedforcorrosive
environments
*A3=goldplated
contactsforlow
voltageapplications
*A4=DPDT
configuration
*A5=forhighDC
ratings
*A7=2SPDT
switchingelements
*A9=
PressurePort
Material/Size
Pleasereferpageno.230
formoremicroswitch
options
*Pleaserefernoteunder
RangeSelectionTable
S3=
SS316/
1”BSP(M)
N3=
Monel/
1"BSP(M)