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646DZE-7011 Series Pressure Switch

Brand: Custom Control Sensors, LLC
Does not ship to OH, United States
Features
  • Adjustable Set Point Range
    • Increasing
      • psid  1.2 - 18
      • kPa  8.3 - 124.1
      • bar  0.083 - 1.24
    • Decreasing
      • psid  0.4 - 17.2
      • kPa  2.8 - 118.5
      • bar  0.028 - 1.19
  • Deadband - Approximate: 0.8 psi, 5.51 kPa, 0.055 bar
  • System Pressure - Maximum: 400 psig, 2757.90 kPa, 28 bar
  • Proof Pressure
    • Both Both Ports Simultaneously: 750 psig, 5171.07 kPa, 52 bar
    • High: 750 psig, 5171.07 kPa, 52 bar
    • Low: 400 psig, 2757.90 kPa, 28 bar
  • Wetted Materials
    • Pressure Port: 1/4" Female NPT 300 Stainless Steel
    • Diaphragm: Stainless Steel
    • 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, NACE, Dual Seal 
Features
  • Adjustable Set Point Range
    • Increasing
      • psid  1.2 - 18
      • kPa  8.3 - 124.1
      • bar  0.083 - 1.24
    • Decreasing
      • psid  0.4 - 17.2
      • kPa  2.8 - 118.5
      • bar  0.028 - 1.19
  • Deadband - Approximate: 0.8 psi, 5.51 kPa, 0.055 bar
  • System Pressure - Maximum: 400 psig, 2757.90 kPa, 28 bar
  • Proof Pressure
    • Both Both Ports Simultaneously: 750 psig, 5171.07 kPa, 52 bar
    • High: 750 psig, 5171.07 kPa, 52 bar
    • Low: 400 psig, 2757.90 kPa, 28 bar
  • Wetted Materials
    • Pressure Port: 1/4" Female NPT 300 Stainless Steel
    • Diaphragm: Stainless Steel
    • 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, NACE, Dual Seal 
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Models matching criteria: 9
646DZE3-7011
CCS DUAL-SNAP Differential Pressure Switch, Haz. Area, 1/2" NPT 300 SST Port & Diaphragm, Viton view more
  • Adjustable Set Point Range
    • Increasing
      • psid  50 - 375
      • kPa    344.7 - 2585.5
      • bar    3.45 - 25.9
    • Decreasing
      • psid  16 - 341
      • kPa    110.3 - 2351.1
      • bar    1.1 - 23.5
  • Deadband - Approximate: 34 psi, 234.4 kPa, 2.34 bar
  • System Pressure - Maximum: 3000 psig, 20,684.3 kPa, 207 bar
  • Proof Pressure
    • Both Ports: 5000 psig, 34,473.8 kPa, 345 bar
    • High: 5000 psig, 34,473.8 kPa, 345 bar
    • Low: 3000 psig, 20,684.3 kPa, 207 bar
  • Wetted Materials
    • Pressure Port: 1/2" FNPT Hi Side, 1/4" FNPT Low Side, 300 Stainless Steel
    • Diaphragm: Stainless Steel
    • O-Ring: Viton
  • Relay: SPDT
  • UL, CSA
    • Explosion Proof - Class 1, Div/Zone 1, Groups A, B, C and D
  • CE Mark
Limited Stock
Does not ship to OH, United States
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646DZE5-7011
CCS DUAL-SNAP Differential Pressure Switch, Haz. Area, 1/4" NPT 300 SST Port & Diaphragm, Viton view more
  • Adjustable Set Point Range
    • Increasing
      • psid  330 - 1000
      • kPa    2275.3 - 6894.8
      • bar     22.8 - 69
    • Decreasing
      • psid  250 - 920
      • kPa    1723.7 - 6343.2
      • bar     17.24 - 63.4
  • Deadband - Approximate: 80 psi, 551.2 kPa, 5.52 bar
  • System Pressure - Maximum: 3000 psig, 20,684.3 kPa, 207 bar
  • Proof Pressure
    • Both Ports: 5000 psig, 34,473.8 kPa, 345 bar
    • High: 5000 psig, 34,473.8 kPa, 345 bar
    • Low: 3000 psig, 20,684.3 kPa, 207 bar
  • Wetted Materials
    • Pressure Port: 1/2" FNPT Hi Side, 1/4" FNPT Low Side, 300 Stainless Steel
    • Diaphragm: Stainless Steel
    • O-Ring: Viton
  • Relay: SPDT
  • UL, CSA
    • Explosion Proof - Class 1, Div/Zone 1, Groups A, B, C and D
  • CE Mark
Limited Stock
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646DZE2-7011
CCS DUAL-SNAP Differential Pressure Switch, Haz. Area, 1/4" NPT 300 SST Port & Diaphragm, Viton view more
  • Adjustable Set Point Range
    • Increasing
      • psid  9 - 75
      • kPa   62.1 - 517.1
      • bar    0.62 - 5.2
    • Decreasing
      • psid  3 - 69
      • kPa   20.7 - 475.7
      • bar    0.21 - 4.76
  • Deadband - Approximate: 6 psig, 475 kPa, 4.76 bar
  • System Pressure - Maximum: 400 psig, 2757.90 kPa, 28 bar
  • Proof Pressure
    • Both Ports: 750 psig, 5171.07 kPa, 52 bar
    • High: 750 psig, 5171.07 kPa, 52 bar
    • Low: 400 psig, 2757 kPa, 28 bar
  • Wetted Materials
    • Pressure Port: 1/4" FNPT 300 Stainless Steel
    • Diaphragm: Stainless Steel
    • O-Ring: Viton
  • Relay: SPDT
  • UL, CSA
    • Explosion Proof - Class 1, Div/Zone 1, Groups A, B, C and D
    • Dual Seal - ANSI/ISA - 12.27.01-2003
  • CE Mark, NACE
Contact Us
Does not ship to OH, United States
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646DZE11-7011
CCS DUAL-SNAP Differential Pressure Switch, Haz. Area, 1/4" NPT 300 SST Port & Diaphragm, Viton view more
  • Adjustable Set Point Range
    • Increasing
      • psi  20 - 150
      • kPa 137.9 - 1034.2
      • bar  1.38 - 10.3
    • Decreasing: 
      • psi   6 - 136
      • kPa 51.4 - 937.6
      • bar  1.38 - 10.3
  • Deadband - Approximate: 14 psi, 96.53 kPa, 0.97 bar
  • System Pressure - Maximum: 3000 psi, 20,684.27 kPa, 207 bar
  • Proof Pressure
    • Both Ports: 5000 psi, 34,473.79 kPa, 345 bar
    • High: 5000 psi, 34,473.79 kPa, 345 bar
    • Low: 3000 psi, 20,684.27 kPa, 207 bar
  • Wetted Materials
    • Pressure Port: 1/2" FNPT High Side, 1/4" FNPT Low Side, 300 Stainless Steel
    • Diaphragm: Stainless Steel
    • O-Ring: Viton
  • Relay: SPDT
  • UL, CSA
    • Explosion Proof - Class 1, Div/Zone 1, Groups A, B, C and D
  • CE Mark
Contact Us
Does not ship to OH, United States
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646DZE1-7011
CCS DUAL-SNAP Differential Pressure Switch, Haz. Area, 1/4" NPT 300 SST Port & Diaphragm, Viton view more
  • Adjustable Set Point Range
    • Increasing
      • psid  2 - 18
      • kPa   13.8 - 124.1
      • bar    0.138 - 1.24
    • Decreasing
      • psid 0.5 - 16.5
      • kPa   3.5 - 113.7
      • bar    0.034 - 1.14
  • Deadband - Approximate: 1.5 psi, 10.34 kPa, 0.103 bar
  • System Pressure - Maximum: 400 psig, 2757.90 kPa, 28 bar
  • Proof Pressure
    • Both Ports: 750 psig, 5171.07 kPa, 52 bar
    • High: 750 psig, 5171.07 kPa, 52 bar
    • Low: 400 psig, 2757 kPa, 28 bar
  • Wetted Materials
    • Pressure Port: 1/4" FNPT 300 Stainless Steel
    • Diaphragm: Stainless Steel
    • O-Ring: Viton
  • Relay: SPDT
  • UL, CSA
    • Explosion Proof - Class 1, Div/Zone 1, Groups A, B, C and D
  • CRN, CE Mark, NACE
Contact Us
Does not ship to OH, United States
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646DZE4-7011
CCS DUAL-SNAP Differential Pressure Switch, Haz. Area, 1/4" NPT 300 SST Port & Diaphragm, Viton view more
  • Adjustable Set Point Range
    • Increasing
      • psid  10 - 75
      • kPa    69 - 517.1
      • bar     0.69 - 5.2
    • Decreasing
      • psid 3 - 68
      • kPa    20.7 - 468
      • bar     0.21 - 4.68
  • Deadband - Approximate: 7 psig, 48 kPa, 0.48 bar
  • System Pressure - Maximum: 3000 psig, 20,700 kPa, 207 bar
  • Proof Pressure
    • Both Ports: 5000 psig, 34,500 kPa, 345 bar
    • High: 5000 psig, 34,500 kPa, 345 bar
    • Low: 3000 psig, 20,700 kPa, 207 bar
  • Wetted Materials
    • Pressure Ports: 1/2" FNPT Hi Side, 1/4" FNPT Low Side, 300 Stainless Steel
    • Diaphragm: Stainless Steel
    • O-Ring: Viton
  • Relay: SPDT
  • UL, CSA
    • Explosion Proof - Class 1, Div/Zone 1, Groups A, B, C and D
    • Dual Seal - ANSI/ISA - 12.27.01-2003
  • CE Mark, NACE
Contact Us
Does not ship to OH, United States
646DZETM4-7065
CCS DUAL-SNAP Diff. Pressure Switch, Haz. Area, 1/4"NPT 300 SST Port & Diaphragm, DPDT, Teflon view more
  • Adjustable Set Point Range
    • Increasing
      • psid  10 - 75
      • kPa    69 - 517.1
      • bar    0.69 - 5.2
    • Decreasing
      • psid  3 - 68
      • kPa    20.7 - 468
      • bar    0.21 - 4.68
  • Deadband - Approximate: 7 psig, 48 kPa, 0.48 bar
  • System Pressure - Maximum: 3000 psig, 20,700 kPa, 207 bar
  • Proof Pressure
    • Both Ports: 5000 psig, 34,500 kPa, 345 bar
    • High: 5000 psig, 34,500 kPa, 345 bar
    • Low: 3000 psig, 20,700 kPa, 207 bar
  • Wetted Materials
    • Pressure Port: 1/4" FNPT High Side, 1/4" FNPT Low Side, 300 Stainless Steel
    • Diaphragm: Stainless Steel
    • O-Ring: Teflon
  • Relay: DPDT
  • Leads: Teflon
  • UL, CSA
    • Explosion Proof - Class 1, Div/Zone 1, Groups A, B, C and D
    • Dual Seal - ANSI/ISA - 12.27.01-2003
  • CE Mark, NACE
Contact Us
Does not ship to OH, United States
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646DZEM11-7065
CCS DUAL-SNAP Differential Pressure Switch, Haz. Area, 1/4" NPT SST Port & Diaphragm, Viton, Teflon view more
  • Adjustable Set Point Range
    • Increasing
      • psi   20 - 150
      • kPa  137.9 - 1034.2
      • bar   1.38 - 10.3
    • Decreasing
      • psi   6 - 136
      • kPa  51.4 - 937.6
      • bar   1.38 - 10.3
  • Deadband - Approximate: 14 psi, 96.53 kPa, 0.97 bar
  • System Pressure - Maximum: 3000 psi, 20,684.27 kPa, 207 bar
  • Proof Pressure
    • Both Ports: 5000 psi, 34,473.79 kPa, 345 bar
    • High: 5000 psi, 34,473.79 kPa, 345 bar
    • Low: 3000 psi, 20,684.27 kPa, 207 bar
  • Wetted Materials
    • Pressure Port: 1/2" FNPT High Side, 1/4" FNPT Low Side, 300 Stainless Steel
    • Diaphragm: Stainless Steel
    • O-Ring: Viton
  • Relay: DPDT
  • Leads: Teflon
  • UL, CSA
    • Explosion Proof - Class 1, Div/Zone 1, Groups A, B, C and D
  • CE Mark
Contact Us
Does not ship to OH, United States
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646DZEM4-7065
CCS DUAL-SNAP Differential Pressure Switch, Haz. Area, 1/4" NPT 300 SST Port & Diaphragm, DPDT Teflo view more
  • Adjustable Set Point Range
    • Increasing
      • psid  10 - 75
      • kPa    69 - 517.1
      • bar    0.69 - 5.2
    • Decreasing
      • psid  3 - 68
      • kPa    20.7 - 468
      • bar    0.21 - 4.68
  • Deadband - Approximate: 7 psig, 48 kPa, 0.48 bar
  • System Pressure - Maximum: 3000 psig, 20,700 kPa, 207 bar
  • Proof Pressure
    • Both Ports: 5000 psig, 34,500 kPa, 345 bar
    • High: 5000 psig, 34,500 kPa, 345 bar
    • Low: 3000 psig, 20,700 kPa, 207 bar
  • Wetted Materials
    • Pressure Port: 1/2" FNPT High Side, 1/4" FNPT Low Side, 300 Stainless Steel
    • Diaphragm: Stainless Steel
    • O-Ring: Viton
  • Relay: DPDT
  • Leads: Teflon (7065 designation)
  • UL, CSA
    • Explosion Proof - Class 1, Div/Zone 1, Groups A, B, C and D
    • Dual Seal - ANSI/ISA - 12.27.01-2003
  • CE Mark, NACE
Contact Us
Does not ship to OH, United States
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Specifications

Brand

Adjustment Type

  • Field Adjustable

Approvals & Certifications

  • ATEX
  • CE
  • CRN - Canadian Registration Number
  • CRN - Alberta
  • CRN - British Columbia
  • CRN - Manitoba
  • CRN - N.W. Territories
  • CRN - Saskatchewan
  • CSA
  • cUL
  • Dual Seal
  • EMC
  • LVD
  • PED
  • RoHS
  • RTN
  • UL

Deadband, Approximate

  • bar: 0.103 to 5.52
  • kPa: 10.4 to 551.5
  • psi: 1.5 to 80

Diaphragm Material

  • Stainless Steel

Electrical - Free Leads

  • 18" (45 cm) Free Leads
  • 18" (45 cm) Teflon Leadwire

Electrical Assembly

  • Hermetic Seal

Electrical Certification

  • ATEX - Baseefa Certified for Potentially Explosive Atmospheres. Models 646**Y, II 2 GD Ex d IIC, Baseefa 05-ATEX-0011X. (Option Y)
  • cUL, UL/CSA, Hazardous Areas, Div. 1, 2

Electrical Connectors

  • 1/2" NPT Male

Electrical Contacts

  • Gold
  • Silver

Electrical Rating

  • 1 A at 125 Vac, 50/60 Hz
  • 11 A at 125/250 Vac Resistive, 5 A at 28 Vdc, 0.5 A at 125 Vdc
  • 15 A at 125/250/480 Vac Resistive, 0.5 A at 125 Vdc, 0.2 A at 250 Vdc

Enclosure, Body Material

  • Aluminum

Environmental Protection

  • Hazardous Area
  • IP54
  • IP66
  • NEMA 13
  • NEMA 4, 7, 9, 13 / IP54, 66
  • NEMA 7
  • NEMA 9

NACE & NIST

  • NACE MR-0175: 2003

NPT Connection

  • 1/4" NPT Female

O-Ring Material

  • Ethylene Propylene (EPR)
  • Viton

Operating Temperature

  • -40° to 86° C (-40° to 187° F)

Process Connection Material

  • 316 Stainless Steel

Proof Pressure - Both Ports

  • bar: 52 to 345
  • kPa: 5,171 to 34,474
  • psig: 750 to 5,000

Proof Pressure - High Over Low

  • bar: 52 to 345
  • kPa: 5,171 to 34,474
  • psig: 750 to 5,000

Proof Pressure - Low Over High

  • bar: 6.9 to 207
  • kPa: 689.5 to 20,684
  • psig: 100 to 3,000

Service

  • Sour (Oil & Gas)

Set Point - Decreasing

  • bar: 0.034 to 63.4
  • kPa: 3.5 to 6,343
  • psid: 0.5 to 920

Set Point - Increasing

  • bar: 0.138 to 69
  • kPa: 13.8 to 6,895
  • psid: 2 to 1,000

Switch Type

  • DPDT
  • SPDT

System Pressure

  • bar: 28 to 207
  • kPa: 2,758 to 20,684
  • psig: 400 to 3,000
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Advantages

Advantages of Belleville Disc Spring Pressure Switches

Belleville disc springs, named after their inventor Julien Belleville, are conical-shaped washers that provide a type of spring mechanism. When used in pressure switches, Belleville disc springs offer several advantages due to their unique properties and design. These advantages make them suitable for a wide range of applications, from industrial machinery to safety equipment and a preferred choice in applications where reliability, precision, and durability are critical.

High Load Capacity in a Compact Size

Belleville disc springs can support high loads with relatively small deflections compared to other spring types. This high load capacity in a compact form factor is advantageous in pressure switches where space may be limited.

Adjustable Operating Force

By using Belleville springs with application-specific properties, the operating force and deflection characteristics of the pressure switch can be finely tuned. This flexibility allows for precise control over the actuation point of the switch.

Long Service Life

The resilience and durability of Belleville disc springs contribute to a long service life, even in applications with high cycling rates. This durability ensures that pressure switches maintain their accuracy and reliability over time.

Wide Range of Operating Temperatures

Belleville disc springs perform reliably over a wide range of temperatures, making them suitable for applications exposed to extreme heat or cold.

Tolerance to Impurities

Belleville disc springs can tolerate some degree of impurities and deformation without significant loss of functionality. This characteristic is beneficial in environments where the pressure switch might be exposed to contaminants.

Shock and Vibration Resistance

The inherent design of Belleville disc springs provides excellent resistance to shock and vibration. This makes Belleville disc spring-based pressure switches highly reliable in dynamic and challenging environments, such as in compressors, chemical, petrochemical, and heavy machinery applications.

Minimal Maintenance

The simple and robust design of Belleville disc springs requires minimal maintenance. This reduces the overall cost of ownership and increases the reliability of the pressure switch.

Quick Response Time

Belleville disc springs can react quickly to changes in pressure, ensuring that the pressure switch responds promptly to operating conditions. This rapid response is critical in applications where safety or system performance is dependent on timely pressure regulation.

Predictable Behavior

The mechanical properties and behavior of Belleville disc springs under load are predictable, which facilitates trusted design, operation, and calibration of pressure switches.
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