• Fixed Set Point Range:
    • Increasing: 7 to 800 psid, 48 to 5515.8 kPa, 0.48 to 55.15 bar
    • Decreasing: 2 to 680 psid, 14 to 4688.4 kPa, 0.14 to 46.88 bar
  • Deadband: Approximately:
    • At Bottom of Range: 5 to 60 psi, 34 to 413.6 kPa, 0.345 to 46.88 bar
    • At Top of Range: 12 to 120 psi, 83 to 827.3 kPa, 0.83 to 8.23 bar
  • System Pressure (Maximum): 3000 psig, 20684.27 kPa, 207 bar
  • Proof Pressure:
    • Both Ports: 4500 psig, 31026.41 kPa, 310 bar
    • High: 2500 psig, 17237 kPa, 172 bar
    • Low: 2500 psig, 17237 kPa, 172 bar
  • Wetted Materials:
    • Pressure Port: 1/8"-27 FNPT 300 Stainless Steel
    • Diaphragm: Polyimide
    • O-Ring: Viton
  • Relay: SPDT or DPDT
  • UL, CSA
    • Explosion Proof - Class 1, Div/Zone 1, Groups A, B, C and D
  • CRN, CE Mark, General Purpose
The above description encapsulates the entire product series. Specifications for individual configurations may vary depending on the selection chosen.
read more...
674DEM2-7065 @ 100 PSI DECR
674DEM2-7065 @ 100 PSI DECR
$1,558.00
  • Pressure Port: 1/8" FNPT 300 Stainless Steel
  • Diaphragm: Polyimide O-Ring: Viton Relay: DPDT
  • Fix Set Point Range:
    • Increasing: 81 to 350 psid, 558 to 2413 kPa, 5.58 to 24.1 bar
    • Decreasing: 66 to 297 psid, 455 to 2047 kPa, 4.5 to 20.4 bar
  • Deadband:
    • Approximate Bottom Range: 14 psi, 97 kPa, 0.97 bar
    • Approximate Top Range: 52 psi, 358 kPa, 3.6 bar
  • Maximum System Pressure: 3000 psig, 20684 kPa, 207 bar
  • Proof Pressure:
    • Both Ports:4500 psig, 31026 kPa, 310 bar
    • High: 2500 psig, 17237 kPa, 172 bar
    • Low:2500 psig, 17237 kPa, 172 bar
  • Wetted Parts:
    • Pressure Port: 1/8" FNPT 300 Aluminium
    • Diaphragm: 300 Stainless Steel
    • O-Ring: Viton
  • UL, CSA
    • Explosion Proof - Class 1, Div/Zone 1, Groups A, B, C and D
  • CRN, CE Mark
674DHEM2
674DHEM2
$775.00 While Supplies Last
  • Fixed Set Point Range:
    • Increasing: 81 to 350 psid, 558.5 to 2413.1 kPa, 5.58 to 24.13 bar
    • Decreasing: 62 to 280 psid, 427.4 to 1930.5 kPa, 4.27 to 19.3 bar
  • Deadband: Approximately:
    • At Bottom of Range: 19 psi, 131 kPa, 1.31 bar
    • At Top of Range: 70 psi, 482.6 kPa, 4.82 bar
  • System Pressure (Maximum): 3000 psig, 20684.27 kPa, 207 bar
  • Proof Pressure:
    • Both Ports: 4500 psig, 31026.41 kPa, 310 bar
    • High: 2500 psig, 17237 kPa, 172 bar
    • Low: 2500 psig, 17237 kPa, 172 bar 
  • Wetted Materials:
    • Pressure Port: 1/8" FNPT 300 Stainless Steel
    • Diaphragm: Stainless Steel
    • O-Ring: Viton
  • Relay: DPDT
  • UL, CSA
    • Explosion Proof - Class 1, Div/Zone 1, Groups A, B, C and D
  • CRN, CE Mark, Hermetically Sealed

Selected Configuration

Model #:

674DEM2-7065 @ 100 PSI DECR

Price:
$1,558.00 USD
Availability:
In Stock (11)
Min. Qty:
5 Items

Configuration

reset configuration

Agency Approvals

Available agency approvals listed below, ATEX/GOST is a non-standard option.
  • ATEX
  • CE
  • CRN - Alberta
  • CRN - British Columbia
  • CRN - Manitoba
  • CRN - N.W. Territories
  • CRN - Saskatchewan
  • CSA
  • cUL
  • EMC Directive
  • LVD
  • PED
  • RoHS
  • RTN
  • UL

Set Point - Increasing

Set Point Ranges below describe the increasing fixed set point range of the entire series, for specific ranges by model click a desired unit of measurement below.
Operating & Ordering Data:
MODEL 674DE 1/8" Aluminum Pressure Port & Polyimide Diaphragm
Maximum
System
Pressure

psig
Proof (Test)
Pressure

psig
Fixed
Set Point Range
Deadband
Approximate
psi
Model Number &
 Wetted Parts
Both
Ports
 Simult.
High Over Low
Low Over High
Increasing
Pressure

psid
Decreasing
Pressure

psid
At
Bottom
Of
Range
At
Top
Of
Range
Model
674DE**
Wetted
Parts
High Low High Low
3000 4500 2500 2500 7 - 80 2 - 68 5 12 DE1 Aluminum
Polyimide
Viton
3000 4500 2500 2500 81 - 350 66 - 297 14 52 DE2
3000 4500 2500 2500 351 - 800 291 - 680 60 120 DE3
 
Operating & Ordering Data:
MODEL 674DE 1/8" Aluminum Pressure Port & Polyimide Diaphragm
Maximum
System
Pressure

kPa
Proof (Test)
Pressure

kPa
Fixed
Set Point Range
Deadband
Approximate
kPa
Model Number &
 Wetted Parts
Both
Ports
 Simult.
High Over Low
Low Over High
Increasing
Pressure

kPa
Decreasing
Pressure

kPa
At
Bottom
Of
Range
At
Top
Of
Range
Model
674DE**
Wetted
Parts
High Low High Low
20700 31000 17200 17200 48 - 552 14 - 468 34.5 83 DE1 Aluminum
Polyimide
Viton
20700 31000 17200 17200 558 - 2413 455 - 2048 97 359 DE2
20700 31000 17200 17200 2420 - 5515 2006 - 4688 413 823 DE3
 
Operating & Ordering Data:
MODEL 674DE 1/8" Aluminum Pressure Port & Polyimide Diaphragm
Maximum
System
Pressure

bar
Proof (Test)
Pressure

bar
Fixed
Set Point Range
Deadband
Approximate
bar
Model Number &
 Wetted Parts
Both
Ports
 Simult.
High Over Low
Low Over High
Increasing
Pressure

bar
Decreasing
Pressure

bar
At
Bottom
Of
Range
At
Top
Of
Range
Model
674DE**
Wetted
Parts
High Low High Low
207 310 172 172 0.48 - 5.52 0.14 - 4.68 0.345 0.83 DE1 Aluminum
Polyimide
Viton
207 310 172 172 5.58 - 24.13 4.55 - 20.48 0.97 3.59 DE2
207 310 172 172 24.2 - 55.15 20.06 - 46.88 4.13 8.23 DE3
 
  • bar: 0.48 to 55.15
  • kPa: 48.3 to 5,516
  • psid: 7 to 800

Set Point - Decreasing

Set Point Ranges below describe the decreasing fixed set point range of the entire series, for specific ranges by model click a desired unit of measurement below.
Operating & Ordering Data:
MODEL 674DE 1/8" Aluminum Pressure Port & Polyimide Diaphragm
Maximum
System
Pressure

psig
Proof (Test)
Pressure

psig
Fixed
Set Point Range
Deadband
Approximate
psi
Model Number &
 Wetted Parts
Both
Ports
 Simult.
High Over Low
Low Over High
Increasing
Pressure

psid
Decreasing
Pressure

psid
At
Bottom
Of
Range
At
Top
Of
Range
Model
674DE**
Wetted
Parts
High Low High Low
3000 4500 2500 2500 7 - 80 2 - 68 5 12 DE1 Aluminum
Polyimide
Viton
3000 4500 2500 2500 81 - 350 66 - 297 14 52 DE2
3000 4500 2500 2500 351 - 800 291 - 680 60 120 DE3
 
Operating & Ordering Data:
MODEL 674DE 1/8" Aluminum Pressure Port & Polyimide Diaphragm
Maximum
System
Pressure

kPa
Proof (Test)
Pressure

kPa
Fixed
Set Point Range
Deadband
Approximate
kPa
Model Number &
 Wetted Parts
Both
Ports
 Simult.
High Over Low
Low Over High
Increasing
Pressure

kPa
Decreasing
Pressure

kPa
At
Bottom
Of
Range
At
Top
Of
Range
Model
674DE**
Wetted
Parts
High Low High Low
20700 31000 17200 17200 48 - 552 14 - 468 34.5 83 DE1 Aluminum
Polyimide
Viton
20700 31000 17200 17200 558 - 2413 455 - 2048 97 359 DE2
20700 31000 17200 17200 2420 - 5515 2006 - 4688 413 823 DE3
 
Operating & Ordering Data:
MODEL 674DE 1/8" Aluminum Pressure Port & Polyimide Diaphragm
Maximum
System
Pressure

bar
Proof (Test)
Pressure

bar
Fixed
Set Point Range
Deadband
Approximate
bar
Model Number &
 Wetted Parts
Both
Ports
 Simult.
High Over Low
Low Over High
Increasing
Pressure

bar
Decreasing
Pressure

bar
At
Bottom
Of
Range
At
Top
Of
Range
Model
674DE**
Wetted
Parts
High Low High Low
207 310 172 172 0.48 - 5.52 0.14 - 4.68 0.345 0.83 DE1 Aluminum
Polyimide
Viton
207 310 172 172 5.58 - 24.13 4.55 - 20.48 0.97 3.59 DE2
207 310 172 172 24.2 - 55.15 20.06 - 46.88 4.13 8.23 DE3
 
  • bar: 0.14 to 46.88
  • kPa: 13.8 to 468.8
  • psid: 2 to 680

Adjustment Type

  • Factory Set (Pre-Set)

System Pressure

System Pressure below describes the system pressure range of the entire series, for specific values by model click a desired unit of measurement below.
Operating & Ordering Data:
MODEL 674DE 1/8" Aluminum Pressure Port & Polyimide Diaphragm
Maximum
System
Pressure

psig
Proof (Test)
Pressure

psig
Fixed
Set Point Range
Deadband
Approximate
psi
Model Number &
 Wetted Parts
Both
Ports
 Simult.
High Over Low
Low Over High
Increasing
Pressure

psid
Decreasing
Pressure

psid
At
Bottom
Of
Range
At
Top
Of
Range
Model
674DE**
Wetted
Parts
High Low High Low
3000 4500 2500 2500 7 - 80 2 - 68 5 12 DE1 Aluminum
Polyimide
Viton
3000 4500 2500 2500 81 - 350 66 - 297 14 52 DE2
3000 4500 2500 2500 351 - 800 291 - 680 60 120 DE3
 
Operating & Ordering Data:
MODEL 674DE 1/8" Aluminum Pressure Port & Polyimide Diaphragm
Maximum
System
Pressure

kPa
Proof (Test)
Pressure

kPa
Fixed
Set Point Range
Deadband
Approximate
kPa
Model Number &
 Wetted Parts
Both
Ports
 Simult.
High Over Low
Low Over High
Increasing
Pressure

kPa
Decreasing
Pressure

kPa
At
Bottom
Of
Range
At
Top
Of
Range
Model
674DE**
Wetted
Parts
High Low High Low
20700 31000 17200 17200 48 - 552 14 - 468 34.5 83 DE1 Aluminum
Polyimide
Viton
20700 31000 17200 17200 558 - 2413 455 - 2048 97 359 DE2
20700 31000 17200 17200 2420 - 5515 2006 - 4688 413 823 DE3
 
Operating & Ordering Data:
MODEL 674DE 1/8" Aluminum Pressure Port & Polyimide Diaphragm
Maximum
System
Pressure

bar
Proof (Test)
Pressure

bar
Fixed
Set Point Range
Deadband
Approximate
bar
Model Number &
 Wetted Parts
Both
Ports
 Simult.
High Over Low
Low Over High
Increasing
Pressure

bar
Decreasing
Pressure

bar
At
Bottom
Of
Range
At
Top
Of
Range
Model
674DE**
Wetted
Parts
High Low High Low
207 310 172 172 0.48 - 5.52 0.14 - 4.68 0.345 0.83 DE1 Aluminum
Polyimide
Viton
207 310 172 172 5.58 - 24.13 4.55 - 20.48 0.97 3.59 DE2
207 310 172 172 24.2 - 55.15 20.06 - 46.88 4.13 8.23 DE3
 
  • bar: 207
  • kPa: 20,684
  • psig: 3,000

Proof Pressure - Both Ports

Proof Pressure below describes the proof pressure range for both ports of the entire series, for specific values by model click a desired unit of measurement below.
Operating & Ordering Data:
MODEL 674DE 1/8" Aluminum Pressure Port & Polyimide Diaphragm
Maximum
System
Pressure

psig
Proof (Test)
Pressure

psig
Fixed
Set Point Range
Deadband
Approximate
psi
Model Number &
 Wetted Parts
Both
Ports
 Simult.
High Over Low
Low Over High
Increasing
Pressure

psid
Decreasing
Pressure

psid
At
Bottom
Of
Range
At
Top
Of
Range
Model
674DE**
Wetted
Parts
High Low High Low
3000 4500 2500 2500 7 - 80 2 - 68 5 12 DE1 Aluminum
Polyimide
Viton
3000 4500 2500 2500 81 - 350 66 - 297 14 52 DE2
3000 4500 2500 2500 351 - 800 291 - 680 60 120 DE3
 
Operating & Ordering Data:
MODEL 674DE 1/8" Aluminum Pressure Port & Polyimide Diaphragm
Maximum
System
Pressure

kPa
Proof (Test)
Pressure

kPa
Fixed
Set Point Range
Deadband
Approximate
kPa
Model Number &
 Wetted Parts
Both
Ports
 Simult.
High Over Low
Low Over High
Increasing
Pressure

kPa
Decreasing
Pressure

kPa
At
Bottom
Of
Range
At
Top
Of
Range
Model
674DE**
Wetted
Parts
High Low High Low
20700 31000 17200 17200 48 - 552 14 - 468 34.5 83 DE1 Aluminum
Polyimide
Viton
20700 31000 17200 17200 558 - 2413 455 - 2048 97 359 DE2
20700 31000 17200 17200 2420 - 5515 2006 - 4688 413 823 DE3
 
Operating & Ordering Data:
MODEL 674DE 1/8" Aluminum Pressure Port & Polyimide Diaphragm
Maximum
System
Pressure

bar
Proof (Test)
Pressure

bar
Fixed
Set Point Range
Deadband
Approximate
bar
Model Number &
 Wetted Parts
Both
Ports
 Simult.
High Over Low
Low Over High
Increasing
Pressure

bar
Decreasing
Pressure

bar
At
Bottom
Of
Range
At
Top
Of
Range
Model
674DE**
Wetted
Parts
High Low High Low
207 310 172 172 0.48 - 5.52 0.14 - 4.68 0.345 0.83 DE1 Aluminum
Polyimide
Viton
207 310 172 172 5.58 - 24.13 4.55 - 20.48 0.97 3.59 DE2
207 310 172 172 24.2 - 55.15 20.06 - 46.88 4.13 8.23 DE3
 
  • bar: 310
  • kPa: 31,026
  • psig: 4,500

Proof Pressure - Low Over High

Proof Pressure below describes the proof pressure range for low over high of the entire series, for specific values by model click a desired unit of measurement below.
Operating & Ordering Data:
MODEL 674DE 1/8" Aluminum Pressure Port & Polyimide Diaphragm
Maximum
System
Pressure

psig
Proof (Test)
Pressure

psig
Fixed
Set Point Range
Deadband
Approximate
psi
Model Number &
 Wetted Parts
Both
Ports
 Simult.
High Over Low
Low Over High
Increasing
Pressure

psid
Decreasing
Pressure

psid
At
Bottom
Of
Range
At
Top
Of
Range
Model
674DE**
Wetted
Parts
High Low High Low
3000 4500 2500 2500 7 - 80 2 - 68 5 12 DE1 Aluminum
Polyimide
Viton
3000 4500 2500 2500 81 - 350 66 - 297 14 52 DE2
3000 4500 2500 2500 351 - 800 291 - 680 60 120 DE3
 
Operating & Ordering Data:
MODEL 674DE 1/8" Aluminum Pressure Port & Polyimide Diaphragm
Maximum
System
Pressure

kPa
Proof (Test)
Pressure

kPa
Fixed
Set Point Range
Deadband
Approximate
kPa
Model Number &
 Wetted Parts
Both
Ports
 Simult.
High Over Low
Low Over High
Increasing
Pressure

kPa
Decreasing
Pressure

kPa
At
Bottom
Of
Range
At
Top
Of
Range
Model
674DE**
Wetted
Parts
High Low High Low
20700 31000 17200 17200 48 - 552 14 - 468 34.5 83 DE1 Aluminum
Polyimide
Viton
20700 31000 17200 17200 558 - 2413 455 - 2048 97 359 DE2
20700 31000 17200 17200 2420 - 5515 2006 - 4688 413 823 DE3
 
Operating & Ordering Data:
MODEL 674DE 1/8" Aluminum Pressure Port & Polyimide Diaphragm
Maximum
System
Pressure

bar
Proof (Test)
Pressure

bar
Fixed
Set Point Range
Deadband
Approximate
bar
Model Number &
 Wetted Parts
Both
Ports
 Simult.
High Over Low
Low Over High
Increasing
Pressure

bar
Decreasing
Pressure

bar
At
Bottom
Of
Range
At
Top
Of
Range
Model
674DE**
Wetted
Parts
High Low High Low
207 310 172 172 0.48 - 5.52 0.14 - 4.68 0.345 0.83 DE1 Aluminum
Polyimide
Viton
207 310 172 172 5.58 - 24.13 4.55 - 20.48 0.97 3.59 DE2
207 310 172 172 24.2 - 55.15 20.06 - 46.88 4.13 8.23 DE3
 
  • bar: 172
  • psig: 2,500

Proof Pressure - High Over Low

Proof Pressure below describes the proof pressure range for high over low of the entire series, for specific values by model click a desired unit of measurement below.
Operating & Ordering Data:
MODEL 674DE 1/8" Aluminum Pressure Port & Polyimide Diaphragm
Maximum
System
Pressure

psig
Proof (Test)
Pressure

psig
Fixed
Set Point Range
Deadband
Approximate
psi
Model Number &
 Wetted Parts
Both
Ports
 Simult.
High Over Low
Low Over High
Increasing
Pressure

psid
Decreasing
Pressure

psid
At
Bottom
Of
Range
At
Top
Of
Range
Model
674DE**
Wetted
Parts
High Low High Low
3000 4500 2500 2500 7 - 80 2 - 68 5 12 DE1 Aluminum
Polyimide
Viton
3000 4500 2500 2500 81 - 350 66 - 297 14 52 DE2
3000 4500 2500 2500 351 - 800 291 - 680 60 120 DE3
 
Operating & Ordering Data:
MODEL 674DE 1/8" Aluminum Pressure Port & Polyimide Diaphragm
Maximum
System
Pressure

kPa
Proof (Test)
Pressure

kPa
Fixed
Set Point Range
Deadband
Approximate
kPa
Model Number &
 Wetted Parts
Both
Ports
 Simult.
High Over Low
Low Over High
Increasing
Pressure

kPa
Decreasing
Pressure

kPa
At
Bottom
Of
Range
At
Top
Of
Range
Model
674DE**
Wetted
Parts
High Low High Low
20700 31000 17200 17200 48 - 552 14 - 468 34.5 83 DE1 Aluminum
Polyimide
Viton
20700 31000 17200 17200 558 - 2413 455 - 2048 97 359 DE2
20700 31000 17200 17200 2420 - 5515 2006 - 4688 413 823 DE3
 
Operating & Ordering Data:
MODEL 674DE 1/8" Aluminum Pressure Port & Polyimide Diaphragm
Maximum
System
Pressure

bar
Proof (Test)
Pressure

bar
Fixed
Set Point Range
Deadband
Approximate
bar
Model Number &
 Wetted Parts
Both
Ports
 Simult.
High Over Low
Low Over High
Increasing
Pressure

bar
Decreasing
Pressure

bar
At
Bottom
Of
Range
At
Top
Of
Range
Model
674DE**
Wetted
Parts
High Low High Low
207 310 172 172 0.48 - 5.52 0.14 - 4.68 0.345 0.83 DE1 Aluminum
Polyimide
Viton
207 310 172 172 5.58 - 24.13 4.55 - 20.48 0.97 3.59 DE2
207 310 172 172 24.2 - 55.15 20.06 - 46.88 4.13 8.23 DE3
 
  • kPa: 17,237
  • psig: 2,500

Operating Temperature

  • -40° to 86° C (-40° to 187° F)

Deadband, Approximate - Bottom of Range

Deadband below describes the approximate bottom of deadband range of the entire series, for specific values by model click a desired unit of measurement below.
Operating & Ordering Data:
MODEL 674DE 1/8" Aluminum Pressure Port & Polyimide Diaphragm
Maximum
System
Pressure

psig
Proof (Test)
Pressure

psig
Fixed
Set Point Range
Deadband
Approximate
psi
Model Number &
 Wetted Parts
Both
Ports
 Simult.
High Over Low
Low Over High
Increasing
Pressure

psid
Decreasing
Pressure

psid
At
Bottom
Of
Range
At
Top
Of
Range
Model
674DE**
Wetted
Parts
High Low High Low
3000 4500 2500 2500 7 - 80 2 - 68 5 12 DE1 Aluminum
Polyimide
Viton
3000 4500 2500 2500 81 - 350 66 - 297 14 52 DE2
3000 4500 2500 2500 351 - 800 291 - 680 60 120 DE3
 
Operating & Ordering Data:
MODEL 674DE 1/8" Aluminum Pressure Port & Polyimide Diaphragm
Maximum
System
Pressure

kPa
Proof (Test)
Pressure

kPa
Fixed
Set Point Range
Deadband
Approximate
kPa
Model Number &
 Wetted Parts
Both
Ports
 Simult.
High Over Low
Low Over High
Increasing
Pressure

kPa
Decreasing
Pressure

kPa
At
Bottom
Of
Range
At
Top
Of
Range
Model
674DE**
Wetted
Parts
High Low High Low
20700 31000 17200 17200 48 - 552 14 - 468 34.5 83 DE1 Aluminum
Polyimide
Viton
20700 31000 17200 17200 558 - 2413 455 - 2048 97 359 DE2
20700 31000 17200 17200 2420 - 5515 2006 - 4688 413 823 DE3
 
Operating & Ordering Data:
MODEL 674DE 1/8" Aluminum Pressure Port & Polyimide Diaphragm
Maximum
System
Pressure

bar
Proof (Test)
Pressure

bar
Fixed
Set Point Range
Deadband
Approximate
bar
Model Number &
 Wetted Parts
Both
Ports
 Simult.
High Over Low
Low Over High
Increasing
Pressure

bar
Decreasing
Pressure

bar
At
Bottom
Of
Range
At
Top
Of
Range
Model
674DE**
Wetted
Parts
High Low High Low
207 310 172 172 0.48 - 5.52 0.14 - 4.68 0.345 0.83 DE1 Aluminum
Polyimide
Viton
207 310 172 172 5.58 - 24.13 4.55 - 20.48 0.97 3.59 DE2
207 310 172 172 24.2 - 55.15 20.06 - 46.88 4.13 8.23 DE3
 
  • bar: 0.345 to 4.13
  • kPa: 34.5 to 413.6
  • psi: 5 to 60

Deadband, Approximate - Top of Range

Deadband below describes the approximate top of deadband range of the entire series, for specific values by model click a desired unit of measurement below.
Operating & Ordering Data:
MODEL 674DE 1/8" Aluminum Pressure Port & Polyimide Diaphragm
Maximum
System
Pressure

psig
Proof (Test)
Pressure

psig
Fixed
Set Point Range
Deadband
Approximate
psi
Model Number &
 Wetted Parts
Both
Ports
 Simult.
High Over Low
Low Over High
Increasing
Pressure

psid
Decreasing
Pressure

psid
At
Bottom
Of
Range
At
Top
Of
Range
Model
674DE**
Wetted
Parts
High Low High Low
3000 4500 2500 2500 7 - 80 2 - 68 5 12 DE1 Aluminum
Polyimide
Viton
3000 4500 2500 2500 81 - 350 66 - 297 14 52 DE2
3000 4500 2500 2500 351 - 800 291 - 680 60 120 DE3
 
Operating & Ordering Data:
MODEL 674DE 1/8" Aluminum Pressure Port & Polyimide Diaphragm
Maximum
System
Pressure

kPa
Proof (Test)
Pressure

kPa
Fixed
Set Point Range
Deadband
Approximate
kPa
Model Number &
 Wetted Parts
Both
Ports
 Simult.
High Over Low
Low Over High
Increasing
Pressure

kPa
Decreasing
Pressure

kPa
At
Bottom
Of
Range
At
Top
Of
Range
Model
674DE**
Wetted
Parts
High Low High Low
20700 31000 17200 17200 48 - 552 14 - 468 34.5 83 DE1 Aluminum
Polyimide
Viton
20700 31000 17200 17200 558 - 2413 455 - 2048 97 359 DE2
20700 31000 17200 17200 2420 - 5515 2006 - 4688 413 823 DE3
 
Operating & Ordering Data:
MODEL 674DE 1/8" Aluminum Pressure Port & Polyimide Diaphragm
Maximum
System
Pressure

bar
Proof (Test)
Pressure

bar
Fixed
Set Point Range
Deadband
Approximate
bar
Model Number &
 Wetted Parts
Both
Ports
 Simult.
High Over Low
Low Over High
Increasing
Pressure

bar
Decreasing
Pressure

bar
At
Bottom
Of
Range
At
Top
Of
Range
Model
674DE**
Wetted
Parts
High Low High Low
207 310 172 172 0.48 - 5.52 0.14 - 4.68 0.345 0.83 DE1 Aluminum
Polyimide
Viton
207 310 172 172 5.58 - 24.13 4.55 - 20.48 0.97 3.59 DE2
207 310 172 172 24.2 - 55.15 20.06 - 46.88 4.13 8.23 DE3
 
  • bar: 0.83 to 8.23
  • kPa: 82.8 to 827.3
  • psi: 12 to 120

Process Connection - Threaded

  • 1/8" Female NPT

Environmental Protection

  • Hazardous Area
  • NEMA 4, 7, 9, 13 / IP54, 66

Switch Type

  • DPDT
  • SPDT

Electrical Assembly

  • Hermetic Seal

Electrical Rating

Electrical Characteristics:
VOLTS AMPERES
SPDT DPDT
Resistive Resistive
Silver Contacts
125 AC - 50/60 Hz 11 11
250 AC - 50/60 Hz 11 11
30 DC     5 5
125 DC     0.5 0.5
Gold Contacts
125 AC - 50/60 Hz 1 Max 1 Max
30 DC     1 Max 1 Max
SPDT (Single Pole Double Throw)
A SPDT switching element has one normally open, one normally closed and one common terminal. Three terminals mean that the switch can be wired with the circuit either normally open (N/O) or normally closed (N/C).

DPDT (Double Pole Double Throw)
A DPDT switching element has six electrical terminals. In simple terms, it is two SPDT switching elements operating simultaneously at the same settings. This type of switch can handle two independent circuits without using a relay.

Normally Closed Switching Element
A Normally Closed (NC) Switching Element is one in which the terminals are wired so that current can flow through the switching element until the plunger pin is actuated to open the circuit.
  • 1 A at 125 Vac, 50/60 Hz
  • 11 A at 125/250 Vac

Electrical - Free Leads

Available selections listed below, free leads are standard.
  • 18" (45 cm) Free Leads
  • 18" (45 cm) Teflon Leadwire

Electrical Contacts

Available electrical contact materials listed below, silver is standard.
  • Gold
  • Silver

Electrical Certification

  • ATEX - Certified for potentially explosive atmospheres electrical assembly Series 46-XXXXXXX, Models 6*****, Ex d IIC T6, Directive 94/9/EC Sira #08ATEX1046X. (Option Y). Consult CCS Sales Department for certification requirements.
  • c-UL, U.L./CSA Explosion-Proof: Div. 1, 2 hermetically sealed electrical assembly P/N 46-1058 (46-1061 for M (DPDT) model option), listed by both Underwriter's Laboratories, Inc. (File No. E32961) & Canadian Standard Association (CSA) Testing Laboratories (File No. LR22921) for hazardous locations, Class 1, Groups A, B, C, & D; Class 2 Groups E, F, & G.
  • IECEx - SIRA certified, SIR 10,0193X (Option Y)

Enclosure/Body Material

  • Aluminum

Process Connection Material

Available pressure port materials listed below, Stainless Steel is standard.
  • 316 Stainless Steel

O-Ring Material

Available O-ring materials listed below, Viton is standard.
  • Ethylene Propylene
  • Viton

Diaphragm Material

Available diaphragm materials listed below, stainless steel is standard.
  • Polyimide