6900GZE Series Pressure Switch

Brand: Custom Control Sensors, LLC

The hazardous locations CCS Dual-Snap 6900GZE Series is the most popular, all-around gage pressure switch with a stainless steel port for corrosion resistance.

The series is UL/CSA explosion proof, Class I, Groups A, B, C, and D, and Class II Groups E, F and G certified, and ATEX/IECEx II 2 G D Ex d IIC and Ex to IIIC. NEMA 4X and IP66 ratings are optimal for wet conditions.

It is designed with high vibration and shock resistance, utilizing Dual Snap® disc spring technology, ensuring high accuracy and repeatability.

It comes with high over-pressure capabilities and is still relatively compact in size to conveniently mount on panels.

The 6900GZE Series meets the demand for all applications, commercial, industrial, and otherwise.
Features
  • Adjustable Set Point Range:
    • Increasing: 3 to 3400 psig, 0.21 to 234 bar
    • Decreasing: 1 to 3120 psig, 0.07 to 215 bar
  • Deadband: Approximately 2 to 280 psi, 0.14 to 19.3 bar
  • System Pressure (Maximum): 500 to 5000 psig, 34.5 to 344.74 bar
  • Proof Pressure: 750 to 7500 psig, 51.7 to 517.11 bar
  • Wetted Materials:
    • Pressure Port: 1/2"-14 Female NPT, 316 Stainless Steel
    • Diaphragm: Stainless Steel
    • O-Ring: Viton
  • Relay: SPDT or DPDT
  • UL, CSA:
    • Hazardous Area
      • Explosion Proof
        • Class I, Division 1, Groups A,B,C D
        • Hermetically Sealed Electrical Assembly
        • Factory Sealed ( Epoxy Seal )
      • Process Seal: 
        • Dual Seal - ANSI / ISA - 12.27.01-2003
  • Environmental Enclosure Rating: IP65 / IP66, NEMA 4X Compliant
  • CRN Approval: Canadian Registration Number - Safety Pressure Authority
  • NACE Compliant: MR-0175 / ISO-15156
  • SIL: Safety Integrity Level:
    • SIL 2, 61508 System in a Simplex Configuration
    • SIL 3, 61508 System in a Voted Configuration
  • CE Mark: EC Declaration of Conformity

Specifications

Adjustment Type

  • Field Adjustable

Approvals & Certifications

  • ATEX
  • CE
  • CRN
  • CRN - Alberta
  • CRN - British Columbia
  • CRN - Manitoba
  • CRN - N.W. Territories
  • CRN - Saskatchewan
  • CSA
  • cUL
  • Dual Seal
  • IEC Ex
  • LVD
  • PED
  • RoHS
  • RTN
  • UL

Deadband, Approximate

  • bar: 0.14 to 19.3
  • kPa: 13.8 to 1,931
  • psi: 2 to 280

Diaphragm Material

  • Hastelloy C-276
  • Monel
  • Stainless Steel

Electrical - Free Leads

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

Electrical Assembly

  • 316 Stainless Steel
  • Hermetic Seal

Electrical Certification

  • ATEX - SIRA Certified for Potentially Explosive Atmospheres. Models 6****Y, II 2 GD Ex d IIC, 08-ATEX-
  • c-UL, UL/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
  • IECEx - SIRA Certified, SIR 10,0193X (Option Y)

Electrical Connectors

  • 1/2” NPT Male
  • M20 Male

Electrical Contacts

  • Gold
  • Silver

Electrical Rating

  • 1 A at 125 Vac, 50/60 Hz
  • 11 A at 125/250 Vac

Enclosure, Body Material

  • Stainless Steel
  • 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

  • 1/2” NPT Female Welded Diaphragm - Internal with Port Cavity

O-Ring Material

  • Ethylene Propylene (EPR)
  • None
  • Viton

Operating Temperature

  • -40° to 86° C (-40° to 187° F)

Process Connection Material

  • 316 Stainless Steel
  • Hastelloy C-276
  • Monel

Proof Pressure

  • bar: 51.7 to 310
  • kPa: 5,171 to 31,026
  • psig: 750 to 4,500

Service

  • Sour (Oil & Gas)

Set Point - Decreasing

  • bar: 0.07 to 215
  • kPa: 6.9 to 21,512
  • psig: 1 to 3,120

Set Point - Increasing

  • bar: 0.21 to 234
  • kPa: 20.7 to 23,442
  • psig: 3 to 3,400

Switch Type

  • DPDT
  • SPDT

System Pressure

  • bar: 34.5 to 207
  • kPa: 3,447 to 20,684
  • psig: 500 to 3,000

  • Boilers & Burners
  • Chemical & Petrochemical Plants
  • Chemical Refining & Processing
  • De-greasers & Evaporators
  • Fluid Management
  • Food Processing
  • Ground Support Equipment
  • Hydraulic & Lubrication Systems
  • Heating & Air Conditioning
  • Manufacturing Process
  • Marine Equipment
  • Offshore Oil Rigs
  • Oil & Gas
  • Pipelines
  • Power Generation
  • Power Plants
  • Pulp & Paper Mills
  • Pumps, Compressors & Turbines
  • Recovery Systems
  • Refineries
  • Reverse Osmosis Systems & Filters
  • Safety Systems
  • Specialized OEM Equipment
  • Steel Mills
  • Utilities
  • Water Treatment, Waste & Sewage Treatment Facilities

What are the 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. Key benefits include:

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.

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.

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.

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.

Versatility
Belleville disc springs are available in a wide range of materials, allowing them to be used in various environments, including corrosive or chemically aggressive conditions. This versatility makes them suitable for a broad spectrum of industries.

Predictable Behavior
The mechanical properties and behavior of Belleville disc springs under load are well understood and predictable, which facilitates the accurate design and calibration of pressure switches.

The combination of these advantages makes Belleville disc spring pressure switches a preferred choice in many applications where reliability, precision, and durability are critical.
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