Indfos pressure switch type PS/PSU
is a triple pole device, meant to
regulate pressure in small air compressors
and water pressurization plants.
These
switches cut off a 3-phase power supply
when the pressure rises to a preset
value and cuts in the power supply
when the pressure falls to another
predetermined value. Both cut off
and cut in pressures are independently
adjustable. All models are provided
with a manual cut off switch (except
PSU15X). Type PSU switch is additionally
provided with a relief valve, which
ensures load free starting of the
compressor.
Type
PS/PSU pressure switches find applications
in :
Small air compressors
Domestic Water Pressursation System
Industrial pressure switch IPS, is
an electromechanical device that senses
changes in pressure and provides electrical
contact closure at predetermined values.
IPS pressure switch may be used to
energize an alarm or may directly
control the process by cycling pumps,
shifting valves etc.
IPS is the most economic device in
our wide range of pressure switches.
The construction is simple, yet sturdy.
The mechanism is enclosed in a dust
proof mild steel casing and all parts
are rust proofed for long life. Range
and Differential values can be set
independently and the device has clearly
read out setting scale.
IPS
series switches find applications
in :
Pumps
Compressors
Boilers
Lubrication Systems
Water treatment Plants
Rubber
Plug suitable for cables from
6 to 14 mm dia
Mounting
:
Surface/Panel
Max
Process Temp.
:
90°C
Max
Ambient Temp.
:
70°C
Switch
Type
:
1
SPDT contact system
Switch
Rating
:
10
A resistive/6 A inductive 380
VAC, 0.2 A inductive 250 VDC
PRESSURE
SWITCH - TYPE RT
Indfos RT Series Pressure switch is
produced using technology provided
by Danfoss Denmark. These Switches
are sturdy, robust and reliable devices
meant for Industrial applications.
Over one million units have been used
in a variety of applications.
RT Series pressure switches utilize
a seamless bellows as sensing element.
The bellows can be either phosphor
bronze or stainless steel to suit
various kinds of process medium. The
mechanism is enclosed in a weather
proof (IP66) enclosure which can be
of either DMC or Die Cast Aluminium.
Various kinds of switching elements
can be provided to meet required electrical
load specifications. Both Range and
Differential can be independently
adjusted. All models feature ±
1% repeatability and device has clearly
read setting scale.
RT
series switches find applications
in :
Power Plants
Chemical/Petrochemical Plants
Steel rills
Pulp & Paper rills
Electric & Diesel Locomotive
Compressors
Machine Tools
Plastic (Dough Moulded Compound)
or Die Cast Aluminium
Enclosure Protection
:
Weather proof to IP 66
Sesing Element
:
Seamless Bellows (Phosphor
Bronze or Stainless steel)
Max Process Temp
:
90°C
Max Ambient Temp
:
- 40 to 70°C
Switch Type
:
1 SPDT
Switch Rating (Standard)
:
10A resistive 4A inductive
380 VAC, 12 W 220 VDC (Other
ratings also available)
Cable Entry
:
1/2" NPT (F)
PRESSURE
SWITCH - TYPE B
Indfos B series Pressure Switches
are produced using technology provided
by Dresser Industries USA, (ASHCROFT
Division). These are sturdy, robust
and precise devices, for use in process
industries.
Available in various ranges covering
pressure from 2.5 mm H2O to 210 Kg/cm2.
B-Series switches utilise a diaphragm
sealed piston sensor. This rugged
sensor provides set point repeatability
of ± 0.5%. Diaphragms are available
in Buna-N, Viton, Teflon, Kapton,
Stainless steel & Monel construction
making the switch suitable for virtually
any process fluid. Enclosures are
available in weather proof (IP 66)
and explosion proof (II A, B &
C) versions and are die cast aluminium
as a standard. A wide variety of 1
SPDT or 2 SPDT micro switches including
hermetically sealed micro switches
are available to meet different requirements
of electrical ratings and environmental
conditions.
B
series switches find applications
in :
Off Shore Oil Rigs
Chemical & Petrochemical Plants
Power Plants
Steel Mills
Pulp & Paper Mills
Water & Sewage Treatment Plants
Other Corrosive/Explosive Environments
Nuclear Power Plants
Die
Cast Aluminium (Weather proof
or Explosion proof)
Sesing
Element
:
Diaphragm
Sealed Piston (Buna-N, Viton,
Teflon, Kapton, SS-316 or Monel)
Max
Ambient Temp
:
-30°C
to 65°C
Switch
Type
:
1
SPDT / 2 SPDT
Mounting
:
Surface/
Panel/ Direct
Process
Connection
:
1/4"
NPT(F)
PRESSURE
SWITCH - ST Series
ST Series of Pressure Switches are designed for tough
environments and are used for interfacing pneumatic
or hydraulic systems with electrical control systems for
switching ‘ON’ or switching ‘OFF’ of signals in response
to pressure changes in the system.
High repeatability and very low long-term drift are
special features of this ST Series.
Click Here to view the demo video of the endurance test of the ST Series Pressure Switch
Available in 4 standard ranges from 0.06 to 17 bar. Durable optimum
mass components provide excellent long term
performance under heavy vibration and shock
conditions.
ST
series switches find applications
in :
Compressor or Pump On/Off operations
Interlocking sequential operations
Providing visual or audio signals at pre-determined pressure
Small air compressors
