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PRESSURE SWITCH - TYPE PS / PSU
 
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

CATALOGUE
 
SPECIFICATIONS
UNIT CONVERSION CALCULATOR
Enclosure
:
Sheet Steel housing
Enclosure Protection
:
IP : 44
Cover
:
Plastic
Diaphragm
:
Fabric reinforced nitrile rubber
Mounting
:
Through process connection
Max Process Temp
:
100C
Max Ambient Temp
:
70C
Process Connection
:
" BSP( F)
Relief valve Connection
:
" Flare
Switch Type
:
TPST Switch
     
PRESSURE SWITCH - TYPE IPS
 
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

IPS CATALOGUE
IPSD CATALOGUE
 
SPECIFICATIONS
UNIT CONVERSION CALCULATOR
Enclosure
:
Painted Mild Steel ( Zinc Plated Chrome Passivated )
Enclosure Protection
:
IP:33, Dust proof
Sensing Element
:
Phosphor Bronze Bellows
Cable Entry
:
Rubber Plug suitable for cables from 6 to 14 mm dia
Mounting
:
Surface/Panel
Max Process Temp.
:
90C
Max Ambient Temp.
:
70C
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

CATALOGUE
 
SPECIFICATIONS
UNIT CONVERSION CALCULATOR
Enclosure
:
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
:
90C
Max Ambient Temp
:
- 40 to 70C
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

CATALOGUE
 
SPECIFICATIONS
UNIT CONVERSION CALCULATOR
Enclosure
:
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
:
-30C to 65C
Switch Type
:
1 SPDT / 2 SPDT
Mounting
:
Surface/ Panel/ Direct
Process Connection
:
1/4" NPT(F)
   
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