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PRESSURE SWITCHES

 
TECHNICAL DATA TECHNICAL SPECIFICATION
SENSING ELEMENT : Phosphor Bronze Bellows
PROCESS CONNECTION : 1/4"BSP (F)
ENCLOSURE : Painted Mild Steel
ENCLOSURE PROTECTION : IP: 32
SWITCH TYPE : 1 SPDT contact system
SWITCH RATING : 6A Inductive/10A Resistive 380 VAC, O.2A Inductive/ 1OA resistive 250V DC
CABLE ENTRY : PG 13.5
MOUNTING : Surfacel Panel
 
TYPE CODE NO. RANGE (PSIG) DIFFERENTIAL (PSI) MAX. PRESSURE (PSIG)
IPS-70 020D8275 0-70 4-55 230
IPS-100 020D8276 0-100 7-85 230
IPS-200 020D8277 85-215 20-70 450
IPS-400 020D8278 82-425 45-115 450

IPSD - 50 DIFFERENTIAL PRESSURE SWITCHES  
TECHNICAL DATA TECHNICAL SPECIFICATION
RANGE : 4.3 - 64 Psig (0.3 - 4.5 atmg)
DIFFERENTIAL : 2.8 Psi (0.2 atm) Fixed
MAXIMUM PRESSURE : 313 Psig (22 atmg)
SENSING ELEMENT : Stainless Steel Bellow
PROCESS CONNECTION : 3/8 BSP (M)
ENCLOSURE : Painted Mild Steel
EXCLOSURE PROTECTION : IP : 32, dust proof
SWITCH TYPE : 1 SPDT microswitch
SWITCH RATING : 2A 250 VAC, 0.2A 250 VDC
CABLE ENTRY : PG 13.5
MOUNTING : Surface / Panel
CODE NO. : 060D9002

TYPE MP PRESSURE CONTROLS    
OPERATING FUNCTION :
Type MP is a single pole double throw (SPDT) pressure control for stopping and starting large and small refrigeration compressors,using R12, R22, R40 & R717 refrigerants. Construction is simple and sturdy, and the device is enclosed in a dust proof mild steel casing. All parts are rust proofed and designed for long life. Starting and stopping pressures can be set independently, and the device has a clearly read pressure range scale.

TYPE MODEL RESET REFRIGERANT PRESSURE RANGE DIFFERENTIAL MAX PRESSURE (amg) FUNCTION ON PRESSURE INCREASE CONNECTION SIZE
Low MP-1 Auto R-12,R-22,
R-40
30 cm Hg to 7 atmg - 0.5 to 6 - 16 Starts 1/4 " flag
Pressure MP-1A Auto R717 (NH3) 30 cm Hg to 7 atmg - 0.5 to 6 - 16 Starts Steel capillary tube
Control MP-5 Auto R12,R22,
R40
- 6 to 30 - 3 to 8 32 Stops 1/4 " flag
  MP-5A Auto R717(NH3) - 6 to 22 - 2 to 8 32 Stops Steel capillary tube
  MP-5R Manual R12,R22,
R40
- 6 to 30 - 3 (Fixed) 32 Stops 1/4 " flag
  MP-5AR Manual R717(NH3) - 6 to 22 - 2 (Fixed) 32 Stops Steel capillary tube
  MP-15 Auto R12,R22,
R40
30 cm Hg to 7 atmg 8 to 30 0.5 to 6 4 (Fixed) 16 for low pressure side Low Pressure Starts 1/4 " flag
  MP-15A Auto R717(NH3) 30 cm Hg to 7 atmg 8 to 22 0.5 to 6 3 (Fixed) 16 for low pressure side Low Pressure Starts Steel capillary tube
  MP-15R Manual R12,R22,
R40
30 cm Hg to 7 atmg 8 to 30 o.6 (Fixed) 4 (Fixed) 32 for low pressure side High Pressure Starts 1/4 " flag
  MP-15AR Manual R717(NH3) 30 cm Hg to 7 atmg 8 to 22 0.6 (Fixed) 3 (Fixed) 32 for low pressure side High Pressure Starts Steel capillary tube

TYPE MP DIFFERENTIAL PRESSURE CONTROL
OPERATING FUNCTION :
Type MP is a single pole double throw (SPDT) pressure control for stopping and starting large and small refrigeration compressors,using R12, R22, R40 & R717 refrigerants. Construction is simple and sturdy, and the device is enclosed in a dust proof mild steel casing. All parts are rust proofed and designed for long life. Starting and stopping pressures can be set independently, and the device has a clearly read pressure range scale.

TYPE MODEL RESET REFRIGERANT AP RANGE
(atm)
DIFFERENTIAL
(atm)
MAX
PRESSURE
TIME
DELAY
CONNECTION SIZE
Differential MP-55 Manual R-12, R-22,
R-40
        1/4" Flare
Pressure MP-55 Manual R-12, R-22,
R-40
0.3-4.5 0.2 Fixed 22 60 Steel
Control MP-55 Manual R 717 (NH3)       Sec. tube Capiilary

B SERIES SWITCHES    
INDFOS B Series Switches are built for reliability and long life. A rugged diaphragm sealed piston actuator provides set point repeatability of +1%. The enclosure is die-cast aluminium and is available in weather proof and explosion Proof versions (Table A) A wide variety of SPDT and Dual (2) SPDT snap action switches are avaliable to meet many electrical load requirements (Table B).Applications include: Pumps, Compressors, Heat Exchangers , Biolers, Marine Equipment, Hydraulic Systems , Lube Systems , etc.

A ENCLOSURE
B4 Pressure switch, weather proof
B7 Pressure switch, explosion proof
D4 Differential pressure switch, weather proof
D7 Differential pressure switch, explosion proof
T4 Temperature switch, weather proof.
T7 Temperature switch, explosion proof.
B SWITCH TYPE CODE
TYPE RATING 1 SPDT 2 SPDT
Narrow dead band 15 A250 VAG 20 61
  0.4 A 120 VDC    
General purpose 15A 250 VAG 24 64
  0.25A 250 VDC    
Heavy duty DC 10A 125VDC 25 66
Environment proof 15A 250 VAGO 26 62
  4A120 VDC    
Gold plated contracts 1A 125/250VAC 31 70
Hermetically sealed 5A 250VAC 32 68
  5A 30VDC    
Hermetically sealed 5A 125/250VAC 22 67
narrow deadband 1A 125/250VAC 42 71
Hermetically sealed      
Gold plated contracts 15A 250VAC 50 -
Variable dead band      

PRESSURE / VACUUM SWITCHES    
B Series switches are designed to handle pressure from vacuum to 210 kg/cm². These are designed for high proof pressures. B series switches use a diaphragm sealed piston actuator. As the pressure on the calibrated piston increases, the adjusted spring force is over-come and the snap action switch is actuated. The piston is sealed from the process by a diaphragm. Choice of diaphragm materials offer compatibility with virtually any medium. A welded stainless steel actuator is, also available as an option from 0.05-1 kg/cm² to 3.5-70 kg/cm² ranges.

C ACTUATOR SEAL (1)
B4 Pressure switch, weather proof
B7 Pressure switch, explosion proof
D4 Differential pressure switch, weather proof
D7 Differential pressure switch, explosion proof
T4 Temperature switch, weather proof.
T7 Temperature switch, explosion proof.
   
1 Process connection size is ¼ NPT (F) for all ranges
2 Max. temperature can be increased to 150° using option
  XTV.
3 Order option XHXfor 7 kg/cm² max. pressure in mm
  H2O ranges.
* Max. Pressure for SS diaphragmis 165 kg/cm²
O. ADJUSTABLE RANGE PROOF PRESS
VACUUM  
H 760-0 mm HQ 16 kQ/cm²
COMPOUND  
(-) 375-(+) 375 mm H2O 1.4 kg/cm² (3)
(-) 760-(+) 760 mm H2O 1.4 kg/cm² (3)
(-) 1-(+) 1 kg/cm² 16 kg/cm²
(-) 1-(+) 2 kg/cm² 16 kg/cm²
(-) 1-(+) 4 kg/cm² 16 kg/cm²
   
WATER COLUMN  
12.5-250 mm H2O 1.4 kg/cm² (3)
37.5- 750 mm H2O 1.4 kg/cm² (3)
75-1500 mm H2O 1.4 kg/cm² (3)
125-2500 mm H2O 1.4 kg/cm² (3)
187.5-3750 mm H2O 1.4 kg/cm² (3)
   
PRESSURE  
0.05-1.0 kg/cm² 33 kg/cm²
0.1-2.0 kg/cm² 33 kg/cm²
0.2-4.0 kg/cm² 33 kg/cm²
0.35- 7.0 kg/cm² 65 kg/cm²
0.7 -14.0 kg/cm² 65 kg/cm²
1.4-28.0 kg/cm² 170 kg/cm²
2.1-42.0 kg/cm² 170 kg/cm²
3.5- 70.0 kg/cm² 800 kg/cm²
10.5-210.0 kg/cm² 800 kg/cm²
   

DIFFERENTIAL PRESSURE SWITCHES    
B Series differential pressure switches are designed for high or low differential pressure ranges from 75-750 mm H2O to 4.2 - 42 kg/cm2. The low range differential pressure switches are diaphragm actuated. Process pressure acts on both sides of a diaphragm and ensures true response. The high range switches consist of two identical calibrated pistons which are sealed from the process by diaphragms. B series low pressure differential switches are available in 4 ranges from 75-750 mm H2O to 375-3750 mm H2O. Maximum static pressure for these switches is 3800 mm H2O. Option XHX increases maximum static pressure to 2.8 kg/cm². High pressure differential switches are available in 7 ranges (Table F) from 0.1-1 to 4.2-42 kg/cm²

E ACTUATOR SEAL MAXIMUM RANGE
CODE DIAPHRAGM TEMP °C mm H2 kg/cm²
  MATERIAL      
B BUNA-N 65
V VITON 150
T TEFLON 65
         
4. Max Proof pressure is 1.4 Kg/cm2.
5. Order option 'XHX for 2.8 kg/cm2 max. static pressure
  and 11.2 kg/cm² proof pressure.
F. ADJUSTABLE RANGE MAX. STAIC PR.
LOW PRESSURE  
75- 750mm H2O 3800mm H2O (4),(5)
150-1500mm H2O 3800mm H2O (4),(5)
250-2500mm H2O 3800mm H2O (4),(5)
375-3750mm H2O 3800mm H2O (4),(5)
   
HIGH PRESSURE  
0.1-1 kg/cm² 33 kg/cm²
0.2-2 kg/cm² 33 kg/cm²
0.4-4 kg/cm² 33 kg/cm²
0.7-7 kg/cm² 65 kg/cm²
1.4-14 kg/cm² 65 kg/cm²
2.8-28 kg/cm² 65 kg/cm²
4.2-42 kg/cm² 130 kg/cm²

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