PRESSURE SWITCH

Differential_Pressure_Switch

DIFFERENTIAL PRESSURE SWITCH TYPE IPSD-50

FUNCTION :

IPSD 50 Differential Pressure Switch is an electromehanical device that senses changes in pressure difference between two pressures lines and provides electrical contact closure at predetermined values.
The mechanism is enclosed in a dust proof mild steel casing and all parts are rust proofed for long life. It is designed for use with oil, air, water and steam.

APPLICATION :
>>    Lubrication Systems
>>    Filteration Equipment
>>    Boilers
>>    Pumps
>>    Valves
SPECIFICATIONS :
Enclosure:
Painted Mild Steel (Zinc Plated Chrome Passivated)
 
Enclosure Protection:
IP:33, Dust proof
Sensing Element:
Stainless Steel Bellows
Cable Entry:
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 microswitch
Switch Rating:
2A 250 V AC, 0.2A 250 V DC
ORDERING TABLE :
Type:
IPSD-50
 
Code No.:
060D9002
  P RANGE P Range:
4.3-64 psig  ( 0.3-4.5 atmg)
Switch Differential (Fixed):
2.8 psi ( 0.2 atm ) maximum
Maximum Pressure:
313 psig ( 22 atmg )


PRESSURE_SWITCH_TYPE_PS

PRESSURE SWITCH TYPE PS / PSU

FUNCTION :

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.

APPLICATION :
>>    Small air compressors
>>    Domestic Water Pressursation  System
SPECIFICATIONS :
Enclosure:
Sheet Steel housing
 
Enclosure Protection:
IP : 44
Cover:
Plastic
Diaphragm:
Fabric reinforced nitrile rubber
Mounting:
Through process connection
Max Process Temp.:
100°C
Max Ambient Temp.:
70°C
Process Connection:
½" BSP( F)
Relief valve Connection:
¼" Flare
Switch Type:
TPST Switch
ORDERING TABLE :
Type
Code No.
Cut-Out Pressure Range (atmg)
Min. Diff. (atm)
Max Diff.
(atm)
Pressure Relief Valve
Manual Switch
Electrical Data
   
PS-4B
31E0171
1-4
0.6-0.7
3
X
Present

Triple Pole Single Throw (TPST) switch for 3 phase supply. Circuit breaks on increase of pressure.

Contact Rating:
Ie = 9A(AC3), Ue = 500V,
Ie = 6A,
Ue = 220 VDC

 
PS-9B
31E0175
2.5-9.5
1.2-1.8
7
X
Present
 
PS-15B
31E0179
7-15
1.7-2.3
7
X
Present
 
PSU-9B
31E0176
2.5-9.5
1.2-1.8
7
Present
Present
 
PSU-15B
31E0180
7-15
1.7-2.3
7
Present
Present
 
PSU-15X
31E0181
7-15
1.7-2.3
7
Present
X


Pressure_Switch_Type_IPS

PRESSURE SWITCH TYPE RT

FUNCTION :

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.

APPLICATION :
>>    Power Plants
>>    Chemical/Petrochemical Plants
>>    Steel rills
>>    Pulp & Paper rills
>>    Electric & Diesel Locomotive
>>    Compressors
>>    Machine Tools
SPECIFICATIONS :
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.:
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 are also available)
Cable Entry:
2" NPT (F)
ORDERING TABLE :
Type
Code No.
Range
(kg/cm2)
Adjustable
Mechanical
Differantial (kg/cm2)
Max Test
Pressure
(kg/cm2)
Pressure Connection
 

RT-121(SB)

17-5215

(-1) TO 0

0.09 to 0.4

7

Triple Pole Single Throw (TPST) switch for 3 phase supply. Circuit breaks on increase of pressure.

Contact Rating:
Ie = 9A(AC3),
Ue = 500V,
Ie = 6A,
Ue = 220 VDC

RT-121(PB)

17-5219

(-1) TO 0

0.09 to 0.4

7

RT-113

17-5196

0 to 300 cm wg

10-50 cm wg

0.5

RT-112(SB)

17-5191

0.1 to 1.1

0.07 to 0.16

7

RT-112(PB)

17-5194

0.1 to 1.1

0.07 to 0.16

7

RT-110(SB)

17-5291

0.2 to 3

0.08 to 0.25

7

RT-110(PB)

17-5293

0.2 to 3

0.08 to 0.25

7

RT-200(SB)

17-5237

0.2 to 6

0.25 to 1.2

25

RT-200(PB)

17-5242

0.2 to 6

0.25 to 1.2

15

RT-116(SB)

17-5203

1 to 10

0.3 to 1.3

25

RT-18

17-5270

2 to 17

0.3 to 2

25

RT-5(SB)

17-5255

4 to 17

1.2 to 4

25

RT-5(PB)

17-5256

4 to 17

1.2 to 4

25

RT-117

17-5295

10 to 30

1 to 4

45



PRESSURE_SWITCH_TYPE_RT

PRESSURE SWITCH TYPE IPS

FUNCTION :

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.

APPLICATION :
>>    Pumps
>>
    Compressors
>>
    Boilers
>>
    Lubrication Systems
>>
    Water treatment Plants
SPECIFICATIONS :
Enclosure:
Painted Mild Steel ( Zinc Plated Chrome Passivated )
 
Enclosure Protection:
IP:33, Dust proof
Sesing Element:
Phosphor Bronze Bellows
Cable Entry:
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:
2" NPT (F)
Switch Rating:
10 A resistive/6 A inductive 380 VAC, 0.2 A inductive 250 VDC
ORDERING TABLE :
Type
Code No.
Range (psig)
Differantial (psi)
Max Pressure (psig)
 

  IPS-70

020D8275

0-70

6-55

230

  IPS-100

020D8276

0-100

9-85

230

  IPS-200

020D8277

85-215

20-70

450

  IPS-400

020D8278

82-425

45-115

450



TEMPERATURE_SWITCH_TYPE_RT`

TEMPERATURE SWITCH TYPE RT

FUNCTION :

Indfos RT series Temperature switch is produced using technology provided by Danfoss Denmark. These Switches are sturdy, robust and reliable devices meant for industrial applications.

RT series switches have a vapour filled bellows operated thermostatic element. Available in various ranges upto 300°C these switches are provided with a tin-plated copper or stainless steel capillary of different lengths. The mechanism is enclosed in a weatherproof (IP 66) enclosure, which can be of either Dough Moulded Compound or Die Cast Aluminium. Various kind of switching elements can be provided to meet required electrical load specifications. Both ranges and differential can be independently adjusted. All models feature ±1% repeatability and device has clearly read setting scale.

APPLICATION :
>>    Power Plants
>>
    Chemical/Petrochemical Plants
>>
    Steel mills
>>
    Pulp & Paper rills
>>
    Electric & Diesel Locomotive
>>
    Compressors
>>
    Machine Tools
SPECIFICATIONS :
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)
Capillary & Bulb:
Tin Plated copper/stainless steal
Max Ambient Temp.:
- 40 to 70°C
Max Process Temp.:
90°C
Switching Element (Standard):
1 SPDT Suitable for 10A resistive 4A inductive 380 VAC, 12 W 220 VDC (Other ratings are also available)
Cable Entry:
1/2" NPT (F)
ORDERING TABLE :
Type
Capillary Length (M)
Code
Range (°C)

Adjustable Differantial
(°C)

Max Bulb
Temp. (°C)
Type of Charge
 
At Min
Temp.
At Max
Temp.

  RT-101

3

17-5127

25 - 90

2.4 - 10

3.5 - 20

300

Adsorption

  RT-101

5

17-5128

25 - 90

2.4 - 10

3.5 - 20

300

  RT-101

8

17-5129

25 - 90

2.4 - 10

3.5 - 20

300

  RT-107

3

17-5167

70 - 150

6 - 25

1.8 - 8

215

Partial Vapour

  RT-107

5

17-5168

70 - 150

6 - 25

1.8 - 8

215

  RT-107

8

17-5169

70 - 150

6 - 25

1.8 - 8

215

  RT-120

5

17-5209

120 - 215

7 - 30

1.8 - 9

260

  RT-123

5

17-5222

150 - 250

6.5 - 30

1.8 - 9

300

  RT-124

5

17-5229

200 - 300

5 - 25

2.5 - 10

350