• Adjustable Set Point Range:
    • Increasing: 1.2 to 2300 psig, 8.3 to 158579.9 kPa, 0.07 to 158.6 bar
    • Decreasing: 0.4 to 2125 psig, 2.8 to 14651.3  kPa, 0.03 to 146.5 bar
  • Deadband: Approximately 0.8 to 175 psi, 5.51 to 1206.5 kPa, 0.06 to 12.1 bar
  • System Pressure (Maximum): 500 to 3000 psig, 3447.38 to 20684.2 kPa, 35 to 207 bar
  • Proof Pressure: 750 to 5000 psig, 5171.07 to 34473.7 kPa, 52 to 345 bar
  • Wetted Materials:
    • Pressure Port: 1/2" FNPT 316 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, Dual Seal
The above description encapsulates the entire product series. Specifications for individual configurations may vary depending on the selection chosen.
read more...

7 Models In Stock

646GZE1
646GZE1
$325.00
  • psig
    • Increasing 1.2 to 16
    • Decreasing 0.4 to 15.2
  • kPa
    • Increasing 8.3 to 110.3
    • Decreasing 2.8 to 104.8
  • bar
    • Increasing 0.07 to 1.1
    • Decreasing 0.03 to 1.04
  • Base Model

    646GZE1
  • Process Connection

    1/2"-14 Female NPT 316 Stainless Steel
  • Diaphragm

    Polyimide
  • O-Ring

    Viton
  • Output

    SPDT
  • Electrical Contacts

    Silver
  • Agency Approvals

    UL, CSA, CE, CRN, Dual Seal
646GZE-1038
646GZE-1038
$482.00
  • Adjustable Set Point Range:
    • Increasing: 100 to 800 psig, 689.5 to 5515.8 kPa, 6.89 to 55.15 bar
    • Decreasing: 25 to 725 psig, 172.3 to 104.8 kPa, 1.72 to 1.03 bar
  • Deadband: Approximately 75 psi, 517.11 kPa, 0.06 bar
  • System Pressure (Maximum): 500 psig, 3447.38 kPa, 35 bar
  • Proof Pressure:
  • 750 psig, 5171.07 kPa, 52 bar
  • Wetted Materials:
    • Pressure Port:1/2" FNPT 316 Stainless Steel
    • Diaphragm: 316 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
646GZE-1069
646GZE-1069

 

  • Adjustable Set Point Range:
    • Increasing: 500 to 1500 psig, 3,447.37 to 10,342.13 kPa
  • Deadband: Approximately 65-250 psi, 448.16 - 1,723.69 kPa
  • System Pressure (Maximum): 3000 psig, 20,684.27 kPa
  • Proof Pressure:
  • 5000 psig, 34,473.78 kPa
  • Wetted Materials:
    • Pressure Port: 1/2" FNPT 316 Stainless Steel
    • Diaphragm: 316 Stainless Steel
    • O-Ring: Viton
  • Relay: SPDT With Teflon Leads
  • UL, CSA
    • Explosion Proof - Class 1, Div/Zone 1, Groups A, B, C and D
  • CRN, CE Mark, NACE

 

646GZE11
646GZE11
$325.00
  • psig
    • Increasing 20 to 150
    • Decreasing 8 to 138
  • kPa
    • Increasing 137.9 to 1034.2
    • Decreasing 55.2 to 951.4
  • bar
    • Increasing 1.4 to 10.3
    • Decreasing 0.6 to 9.5
  • Base Model

    646GZE11
  • Process Connection

    1/2"-14 Female NPT 316 Stainless Steel
  • Diaphragm

    Polyimide
  • O-Ring

    Viton
  • Output

    SPDT
  • Electrical Contacts

    Silver
  • Agency Approvals

    UL, CSA, CE, CRN, Dual Seal
646GZE1-7104
646GZE1-7104
$321.00
  • Adjustable Set Point Range:
    • Increasing: 1.2 to 16 psig, 8.2 to 110.3 kPa, 0.08 to 1.1 bar
    • Decreasing: 0.4 to 15.2 psig, 2.8 to 103.4 kPa, 0.03 to 1.04 bar
  • Deadband: Approximately 1.0 psi, 6.98 kPa, 0.7 bar
  • System Pressure (Maximum): 500 psig, 3447.38 kPa, 35 bar
  • Proof Pressure: 750 psig, 5171.07 kPa, 52 bar
  • Wetted Materials:
    • Pressure Port: 1/2" FNPT 316 Stainless Steel
    • Diaphragm: 316 Stainless Steel
    • O-Ring: Viton
  • Relay: SPDT
  • Leads: 2 Meter Free Leads
  • UL, CSA
    • Explosion Proof - Class 1, Div/Zone 1, Groups A, B, C and D
    • Dual Seal - ANSI/ISA - 12.27.01-2003
  • CRN, CE Mark, NACE
646GZE2
646GZE2
$372.00
  • psig
    • Increasing 8 to 75
    • Decreasing 3 to 70
  • kPa
    • Increasing 55.2 to 517.1
    • Decreasing 20.7 to 482.6
  • bar
    • Increasing 0.6 to 5.2
    • Decreasing 0.21 to 4.8
  • Base Model

    646GZE2
  • Process Connection

    1/2"-14 Female NPT 316 Stainless Steel
  • Diaphragm

    Polyimide
  • O-Ring

    Viton
  • Output

    SPDT
  • Electrical Contacts

    Silver
  • Agency Approvals

    UL, CSA, CE, CRN, Dual Seal
646GZE3
646GZE3
$372.00
  • psig
    • Increasing 50 to 375
    • Decreasing 22 to 347
  • kPa
    • Increasing 344.8 to 2585.5
    • Decreasing 151.7 to 2392.4
  • bar
    • Increasing 3.5 to 25.9
    • Decreasing 1.5 to 23.9
  • Base Model

    646GZE3
  • Process Connection

    1/2"-14 Female NPT 316 Stainless Steel
  • Diaphragm

    Polyimide
  • O-Ring

    Viton
  • Output

    SPDT
  • Electrical Contacts

    Silver
  • Agency Approvals

    UL, CSA, CE, CRN, Dual Seal

Selected Configuration

Model #:

646GZE1-7104

Price:
$321.00 USD
Availability:
In Stock (100+)
Min. Qty:
1 Item

Configuration

reset configuration

Agency Approvals

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

NACE & NIST

  • NACE MR0175:2003

Environmental Protection

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

Set Point - Increasing

Set Point Ranges below describe the adjustable increasing range of the entire series, for specific ranges by model click a desired unit of measurement below.
Operating & Ordering Data:
MODEL 646GZE 1/2" Stainless Steel Pressure Port & Polyimide Diaphragm
Maximum
System
Pressure

psig
Proof
(Test)
Pressure

psig
Adjustable Set Point Range Deadband
Approximate
psi
Model Number & Wetted Parts
Increasing
Pressure

psig
Decreasing
Pressure

psig
Model
646GZE*
Wetted
Parts
500 750 1.2 - 16 0.4 - 15.2 0.8 GZE1 316 Stainless
Steel
Polyimide
Viton
3000 5000 8 - 75 3 - 70 5 GZE2
3000 5000 20 - 150 8 - 138 12 GZE11
3000 5000 50 - 375 22 - 347 28 GZE3
3000 5000 330 - 1000 265 - 935 65 GZE5
3000 5000 950 - 2300 775 - 2125 175 GZE7
Operating & Ordering Data:
MODEL 646GZE 1/2" Stainless Steel Pressure Port & Polyimide Diaphragm
Maximum
System
Pressure

kPa
Proof
(Test)
Pressure

kPa
Adjustable Set Point Range Deadband
Approximate
kPa
Model Number & Wetted Parts
Increasing
Pressure

kPa
Decreasing
Pressure

kPa
Model
646GZE*
Wetted
Parts
3448 5172 8.2 - 110 2.75 - 104 5.5 GZE1 316 Stainless
Steel
Polyimide
Viton
20689 34482 55 - 517 20 - 482 34 GZE2
20698 34482 137 - 1034 55 - 951 82 GZE11
20698 34482 344 - 2586 151 - 2393 28 GZE3
20698 34482 2275 - 6896 1827 - 6448 448 GZE5
20698 34482 6551 - 15862 5344 - 14655 1206 GZE7
Operating & Ordering Data:
MODEL 646GZE 1/2" Aluminum Pressure Port & Polyimide Diaphragm
Maximum
System
Pressure
 
bar
Proof
(Test)
Pressure
 
bar
Adjustable Set Point Range Deadband
Approximate
bar
Model Number & Wetted Parts
Increasing
Pressure
 
bar
Decreasing
Pressure
 
bar
Model
646GZE*
Wetted
Parts
35 52 0.07 - 1.1 0.03 - 1.04 0.06 GZE1 316 Stainless
Steel
Polyimide
Viton
207 345 0.6 - 5.2 0.2 - 4.8 0.34 GZE2
207 345 1.4 - 10 0.6 - 9.5 0.8 GZE11
207 345 3.5 - 25 1.5 - 23 1.9 GZE3
207 345 22 - 68 18 - 64 4.5 GZE5
207 345 65 - 158 53 - 146 12 GZE7
  • bar: 0.07 to 158.6
  • kPa: 8.3 to 15,858
  • psig: 1.2 to 2,300

Set Point - Decreasing

Set Point Ranges below describe the adjustable decreasing range of the entire series, for specific ranges by model click a desired unit of measurement below.
Operating & Ordering Data:
MODEL 646GZE 1/2" Stainless Steel Pressure Port & Polyimide Diaphragm
Maximum
System
Pressure

psig
Proof
(Test)
Pressure

psig
Adjustable Set Point Range Deadband
Approximate
psi
Model Number & Wetted Parts
Increasing
Pressure

psig
Decreasing
Pressure

psig
Model
646GZE*
Wetted
Parts
500 750 1.2 - 16 0.4 - 15.2 0.8 GZE1 316 Stainless
Steel
Polyimide
Viton
3000 5000 8 - 75 3 - 70 5 GZE2
3000 5000 20 - 150 8 - 138 12 GZE11
3000 5000 50 - 375 22 - 347 28 GZE3
3000 5000 330 - 1000 265 - 935 65 GZE5
3000 5000 950 - 2300 775 - 2125 175 GZE7
Operating & Ordering Data:
MODEL 646GZE 1/2" Stainless Steel Pressure Port & Polyimide Diaphragm
Maximum
System
Pressure

kPa
Proof
(Test)
Pressure

kPa
Adjustable Set Point Range Deadband
Approximate
kPa
Model Number & Wetted Parts
Increasing
Pressure

kPa
Decreasing
Pressure

kPa
Model
646GZE*
Wetted
Parts
3448 5172 8.2 - 110 2.75 - 104 5.5 GZE1 316 Stainless
Steel
Polyimide
Viton
20689 34482 55 - 517 20 - 482 34 GZE2
20698 34482 137 - 1034 55 - 951 82 GZE11
20698 34482 344 - 2586 151 - 2393 28 GZE3
20698 34482 2275 - 6896 1827 - 6448 448 GZE5
20698 34482 6551 - 15862 5344 - 14655 1206 GZE7
Operating & Ordering Data:
MODEL 646GZE 1/2" Aluminum Pressure Port & Polyimide Diaphragm
Maximum
System
Pressure
 
bar
Proof
(Test)
Pressure
 
bar
Adjustable Set Point Range Deadband
Approximate
bar
Model Number & Wetted Parts
Increasing
Pressure
 
bar
Decreasing
Pressure
 
bar
Model
646GZE*
Wetted
Parts
35 52 0.07 - 1.1 0.03 - 1.04 0.06 GZE1 316 Stainless
Steel
Polyimide
Viton
207 345 0.6 - 5.2 0.2 - 4.8 0.34 GZE2
207 345 1.4 - 10 0.6 - 9.5 0.8 GZE11
207 345 3.5 - 25 1.5 - 23 1.9 GZE3
207 345 22 - 68 18 - 64 4.5 GZE5
207 345 65 - 158 53 - 146 12 GZE7
  • bar: 0.03 to 146.5
  • kPa: 2.8 to 14,651
  • psig: 0.4 to 2,125

Adjustment Type

  • Field Adjustable

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 646GZE 1/2" Stainless Steel Pressure Port & Polyimide Diaphragm
Maximum
System
Pressure

psig
Proof
(Test)
Pressure

psig
Adjustable Set Point Range Deadband
Approximate
psi
Model Number & Wetted Parts
Increasing
Pressure

psig
Decreasing
Pressure

psig
Model
646GZE*
Wetted
Parts
500 750 1.2 - 16 0.4 - 15.2 0.8 GZE1 316 Stainless
Steel
Polyimide
Viton
3000 5000 8 - 75 3 - 70 5 GZE2
3000 5000 20 - 150 8 - 138 12 GZE11
3000 5000 50 - 375 22 - 347 28 GZE3
3000 5000 330 - 1000 265 - 935 65 GZE5
3000 5000 950 - 2300 775 - 2125 175 GZE7
Operating & Ordering Data:
MODEL 646GZE 1/2" Stainless Steel Pressure Port & Polyimide Diaphragm
Maximum
System
Pressure
kPa
Proof
(Test)
Pressure
kPa
Adjustable Set Point Range Deadband
Approximate
kPa
Model Number & Wetted Parts
Increasing
Pressure
kPa
Decreasing
Pressure
kPa
Model
646GZE*
Wetted
Parts
3448 5172 8.2 - 110 2.75 - 104 5.5 GZE1 316 Stainless
Steel
Polyimide
Viton
20689 34482 55 - 517 20 - 482 34 GZE2
20698 34482 137 - 1034 55 - 951 82 GZE11
20698 34482 344 - 2586 151 - 2393 28 GZE3
20698 34482 2275 - 6896 1827 - 6448 448 GZE5
20698 34482 6551 - 15862 5344 - 14655 1206 GZE7
Operating & Ordering Data:
MODEL 646GZE 1/2" Aluminum Pressure Port & Polyimide Diaphragm
Maximum
System
Pressure
 
bar
Proof
(Test)
Pressure
 
bar
Adjustable Set Point Range Deadband
Approximate
bar
Model Number & Wetted Parts
Increasing
Pressure
 
bar
Decreasing
Pressure
 
bar
Model
646GZE*
Wetted
Parts
35 52 0.07 - 1.1 0.03 - 1.04 0.06 GZE1 316 Stainless
Steel
Polyimide
Viton
207 345 0.6 - 5.2 0.2 - 4.8 0.34 GZE2
207 345 1.4 - 10 0.6 - 9.5 0.8 GZE11
207 345 3.5 - 25 1.5 - 23 1.9 GZE3
207 345 22 - 68 18 - 64 4.5 GZE5
207 345 65 - 158 53 - 146 12 GZE7
  • bar: 34.5 to 207
  • kPa: 3,447 to 20,684
  • psig: 500 to 3,000

Proof Pressure

Proof Pressure below describes the proof pressure range of the entire series, for specific values by model click a desired unit of measurement below.
Operating & Ordering Data:
MODEL 646GZE 1/2" Stainless Steel Pressure Port & Polyimide Diaphragm
Maximum
System
Pressure

psig
Proof
(Test)
Pressure

psig
Adjustable Set Point Range Deadband
Approximate
psi
Model Number & Wetted Parts
Increasing
Pressure

psig
Decreasing
Pressure

psig
Model
646GZE*
Wetted
Parts
500 750 1.2 - 16 0.4 - 15.2 0.8 GZE1 316 Stainless
Steel
Polyimide
Viton
3000 5000 8 - 75 3 - 70 5 GZE2
3000 5000 20 - 150 8 - 138 12 GZE11
3000 5000 50 - 375 22 - 347 28 GZE3
3000 5000 330 - 1000 265 - 935 65 GZE5
3000 5000 950 - 2300 775 - 2125 175 GZE7
Operating & Ordering Data:
MODEL 646GZE 1/2" Stainless Steel Pressure Port & Polyimide Diaphragm
Maximum
System
Pressure

kPa
Proof
(Test)
Pressure

kPa
Adjustable Set Point Range Deadband
Approximate
kPa
Model Number & Wetted Parts
Increasing
Pressure

kPa
Decreasing
Pressure

kPa
Model
646GZE*
Wetted
Parts
3448 5172 8.2 - 110 2.75 - 104 5.5 GZE1 316 Stainless
Steel
Polyimide
Viton
20689 34482 55 - 517 20 - 482 34 GZE2
20698 34482 137 - 1034 55 - 951 82 GZE11
20698 34482 344 - 2586 151 - 2393 28 GZE3
20698 34482 2275 - 6896 1827 - 6448 448 GZE5
20698 34482 6551 - 15862 5344 - 14655 1206 GZE7
Operating & Ordering Data:
MODEL 646GZE 1/2" Aluminum Pressure Port & Polyimide Diaphragm
Maximum
System
Pressure
 
bar
Proof
(Test)
Pressure
 
bar
Adjustable Set Point Range Deadband
Approximate
bar
Model Number & Wetted Parts
Increasing
Pressure
 
bar
Decreasing
Pressure
 
bar
Model
646GZE*
Wetted
Parts
35 52 0.07 - 1.1 0.03 - 1.04 0.06 GZE1 316 Stainless
Steel
Polyimide
Viton
207 345 0.6 - 5.2 0.2 - 4.8 0.34 GZE2
207 345 1.4 - 10 0.6 - 9.5 0.8 GZE11
207 345 3.5 - 25 1.5 - 23 1.9 GZE3
207 345 22 - 68 18 - 64 4.5 GZE5
207 345 65 - 158 53 - 146 12 GZE7
  • bar: 51.7 to 345
  • kPa: 5,171 to 34,473
  • psig: 750 to 5,000

Operating Temperature

  • -40° to 86° C (-40° to 187° F)

Deadband, Approximate

Deadband below describes the approximate deadband range of the entire series, for specific values by model click a desired unit of measurement below.
Operating & Ordering Data:
MODEL 646GZE 1/2" Stainless Steel Pressure Port & Polyimide Diaphragm
Maximum
System
Pressure

psig
Proof
(Test)
Pressure

psig
Adjustable Set Point Range Deadband
Approximate
psi
Model Number & Wetted Parts
Increasing
Pressure

psig
Decreasing
Pressure

psig
Model
646GZE*
Wetted
Parts
500 750 1.2 - 16 0.4 - 15.2 0.8 GZE1 316 Stainless
Steel
Polyimide
Viton
3000 5000 8 - 75 3 - 70 5 GZE2
3000 5000 20 - 150 8 - 138 12 GZE11
3000 5000 50 - 375 22 - 347 28 GZE3
3000 5000 330 - 1000 265 - 935 65 GZE5
3000 5000 950 - 2300 775 - 2125 175 GZE7
Operating & Ordering Data:
MODEL 646GZE 1/2" Stainless Steel Pressure Port & Polyimide Diaphragm
Maximum
System
Pressure

kPa
Proof
(Test)
Pressure

kPa
Adjustable Set Point Range Deadband
Approximate
kPa
Model Number & Wetted Parts
Increasing
Pressure

kPa
Decreasing
Pressure

kPa
Model
646GZE*
Wetted
Parts
3448 5172 8.2 - 110 2.75 - 104 5.5 GZE1 316 Stainless
Steel
Polyimide
Viton
20689 34482 55 - 517 20 - 482 34 GZE2
20698 34482 137 - 1034 55 - 951 82 GZE11
20698 34482 344 - 2586 151 - 2393 28 GZE3
20698 34482 2275 - 6896 1827 - 6448 448 GZE5
20698 34482 6551 - 15862 5344 - 14655 1206 GZE7
Operating & Ordering Data:
MODEL 646GZE 1/2" Aluminum Pressure Port & Polyimide Diaphragm
Maximum
System
Pressure
 
bar
Proof
(Test)
Pressure
 
bar
Adjustable Set Point Range Deadband
Approximate
bar
Model Number & Wetted Parts
Increasing
Pressure
 
bar
Decreasing
Pressure
 
bar
Model
646GZE*
Wetted
Parts
35 52 0.07 - 1.1 0.03 - 1.04 0.06 GZE1 316 Stainless
Steel
Polyimide
Viton
207 345 0.6 - 5.2 0.2 - 4.8 0.34 GZE2
207 345 1.4 - 10 0.6 - 9.5 0.8 GZE11
207 345 3.5 - 25 1.5 - 23 1.9 GZE3
207 345 22 - 68 18 - 64 4.5 GZE5
207 345 65 - 158 53 - 146 12 GZE7
  • bar: 0.06 to 12.1
  • kPa: 5.6 to 1,206.5
  • psig: 0.8 to 175

Process Connection - Threaded

  • 1/2" Female NPT

Switch Type

  • DPDT
  • SPDT

Electrical Assembly

  • Hermetic Seal

Electrical Rating

Electrical Characteristics:
VOLTS AMPERES
SPDT DPDT "M" Dbl Brk"X"
Resistive Resistive Resistive
Silver Contacts
125 AC - 50/60 Hz 15 5 15
250 AC - 50/60 Hz 15 5 15
480 AC - 50/60 Hz 15 - 15
28 DC     2 5 -
125 DC     0.5 0.5 1
250 AC - 50/60 Hz 0.2 - 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 Resisitve, 5 A at 28 DC, 0.5 A at 125 DC
  • 15 A at 125/250/480 Vac Resistive 0.5 A at 125 DC, 0.2 A at 250 DC

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 Connectors

Available selections listed below, 1/2"-14 MNPT is standard.
  • 1/2" Male NPT

Electrical Certification

  • ATEX - Baseefa certified for potentially explosive atmospheres. Models 646**Y, II 2 GD Ex d IIC, Ex tb IIIC, Baseefa 05ATEX0011X. (Option Y)
  • c-UL, U.L./CSA Explosion Proof: Div. 1, 2 hermetically sealed electrical assembly P/N 17-51 (17-73 for M model option), listed by both Underwriter’s Laboratories, Inc. (File No. E32961) and Canadian Standard Association (CSA)Testing Laboratories (File No. LR22921) for hazardous locations, Class 1, Groups A, B, C, and D; Class 2 Groups E, F, and G.

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, polyimide is standard.
  • Polyimide
  • Viton Dacron
M-578 Five-Valve Manifold

M-578 Five-Valve Manifold

PGI Int'l Five-Valve Manifold

SS-8-HN

SS-8-HN

Swagelok Hex Nipple Pipe Fitting