Cal-Stat Thermostats

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  • Rugged and reliable
  • Multiple mounting options
  • Corrosion-resistant stainless steel outer shell
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The Vulcan Cal-Stat has been a reliable temperature control for over 35 years. Rugged, self contained Cal-stats provide design and application versatility not found on many mechanical or solid state temperature controls. These units can be inserted into drilled holes or can be directly immersed into fluids or gases when supplied with an appropriate mounting fitting.

  • Corrosion-resistant 304 stainless steel outer shell
  • 1/4″, 1/2″, and 5/8″ diameter models
  • Temperature adjustment range of -100o F (-73o C) to 500o F (260o C) on 1/4″ models and -100o F (-73o C) to 600o F (316o C) on 1/2″ and 5/8″ models
  • Adjusting screw mechanism located on center
  • Slow make and break switch mechanism
  • Amperage switch ratings up to 10 amps depending on model and operating voltage
  • Standard mounting options include basic cartridge, pipe thread, coupling head, and flange
  • High temperature lead wire termination – 8″ long
  • Many options available including custom lead lengths, temperature presetting, and custom mounting
  • Package Machinery
  • Commercial Food Equipment
  • Lab and Medical Devices
  • Laminating Machines
  • Marking Equipment

Models and Options

1/4″ Diameter Cal-stat Models

 

Mounting Provisions Switch Action on Temp Rise Model #
Style A Base Model Open on Rise 1A1D5
Style A Base Model Close on Rise 1A2D5
Style C Pipe Thread 1/8 27 NPT Open on Rise 1C1D5
Style C Pipe Thread 1/8 27 NPT Close on Rise 1C2D5
Style D Round Flange 3 holes x.144″ dia on .625″ DBC Open on Rise 1D1D5
Style D Round Flange 3 holes x .144″ dia on .625″ DBC Close on Rise 1D2D5
Style E Coupling Pipe Thread 1/8 27 NPT Open on Rise 1E1D5
Style E Coupling Pipe Thread 1/8 27 NPT Close on Rise 1E2D5

 

Construction Details:
Diameter: Actual: .249 + .000 -.004 (6.3 mm + .000 -.102)
Tube Shell Material: 304 Stainless Steel
Temperature Range: -100- F to +500- F (-73- C to 260- C)
Sensitivity: As low as 1- F (depending on application)
Action: Slow make and break
Amperage Rating: 1 Amp @ 120 VAC
Lead Wire Material: #26 Gage – Stranded silver Plated Copper conductor Teflon Insulation – Rated 392- F (200- C)
Mounting Fitting: 300 Series Stainless Steel

1/2″ Diameter Cal-stat Models

 

Mounting Provisions Switch Action on Temp Rise Model #
Style A Base Model Open on Rise 1A1C9
Style A Base Model Close on Rise 1A2C9
Style C Pipe Thread 3/8 18 NPT Open on Rise 1C1C9
Style C Pipe Thread 3/8 18 NPT Close on Rise 1C2C9
Style D Round Flange 3 holes x.156″ dia on 1-1/4″ DBC Open on Rise 1D1C9
Style D Round Flange 3 holes x 156″ dia on 1-1/4″ DBC Close on Rise 1D2C9
Style E Coupling Pipe Thread 3/8 18 NPT Open on Rise 1E1C9
Style E Coupling Pipe Thread 3/8 18 NPT Close on Rise 1E2C9

 

Construction Details:
Diameter: 1/4″ models: .249 + .000 -.004 (6.3 mm + .000 -.102) 1/2″ models: .499 + .000 -.004 (12.7 mm + .000 -.102) 5/8″ models: .624 + .000 -.004 (15.9 mm + .000 -.102)
Tube Shell Material: 304 Stainless Steel
Temperature Range: 1/4″ models:-100- F to +500- F (-73- C to 260- C) 1/2″ and 5/8″ models: -100- F to +600- F (-73- C to 316- C)
Sensitivity: As low as 1- F (depending on application)
Action: Slow make and break
Switch Rating: 1/4″ models: 1 Amp @ 120 VAC 1/2″ models: 5 Amp @ 120 VAC, 3 Amps @ 240 VAC, 1 Amp @ 120 VDC 5/8″ models: 10 Amp @ 120 VAC, 5 Amps @ 240 VAC, 2 Amps @ 120 VDC
Termination High temperature leads

5/8″ Diameter Cal-stat Models

 

Mounting Provisions Switch Action on Temp Rise Model #
Style A Base Model Open on Rise 1A1B9
Style A Base Model Close on Rise 1A2B9
Style C Pipe Thread 1/2 14 NPT Open on Rise 1C1B9
Style C Pipe Thread 1/2 14 NPT Close on Rise 1C2B9
Style D Round Flange 3 holes x .156″ dia on 1-1/4″ DBC Open on Rise 1D1B9
Style D Round Flange 3 holes x .156″ dia on 1-1/4″ DBC Close on Rise 1D2B9
Style E Coupling Pipe Thread 1/2 14 NPT Open on Rise 1E1B9
Style E Coupling Pipe Thread 1/2 14 NPT Close on Rise 1E2B9

 

Construction Details:
Diameter: 1/4″ models: .249 + .000 -.004 (6.3 mm + .000 -.102) 1/2″ models: .499 + .000 -.004 (12.7 mm + .000 -.102) 5/8″ models: .624 + .000 -.004 (15.9 mm + .000 -.102)
Tube Shell Material: 304 Stainless Steel
Temperature Range: 1/4″ models:-100- F to +500- F (-73- C to 260- C) 1/2″ and 5/8″ models: -100- F to +600- F (-73- C to 316- C)
Sensitivity: As low as 1- F (depending on application)
Action: Slow make and break
Switch Rating: 1/4″ models: 1 Amp @ 120 VAC 1/2″ models: 5 Amp @ 120 VAC, 3 Amps @ 240 VAC, 1 Amp @ 120 VDC 5/8″ models: 10 Amp @ 120 VAC, 5 Amps @ 240 VAC, 2 Amps @ 120 VDC
Termination High temperature leads

 

Option Description Option Code
 Factory Temperature Setting A
 Above 120- F A
 0 – 120- F A
 Below 0- F A
 Extended Shell Length with Sensitivity at Bottom B
 First Additional Inch B
 Each Additional Inch B
 Extended Shell Length with Sensitivity at Top C
 First Additional Inch C
 Each Additional Inch C
 Tamper Resistant Plug D
 Moisture Resistant Seal E
 General Purpose Terminal Housing G
 Extended Adjusting Screw H
 First Inch H
 Each Additional Inch H
 Optional Lead Lengths Each Foot or Fraction J
 Plastic Boot Over Adjusting Screw K
 Armored Cable Over Leads L
 First Foot H
 Each Additional Foot or Fraction of a Foot H
 Temperature Calibration Lock (See Option “A” for additional charge for setting) M
 Moisture Resistant Terminal Housing N4
 Explosion Resistant Teminal Housing N7
 Extended Adjusting Sleeve O
 First Inch O
 Each additional inch or fraction O
 Special Shell Material P
 Special Marking R
 Ground Wire U
 First Foot U
 Each Additional Foot or Fraction U
 Blockhead Fitting BH
* Some options may not be available with other option combinations or 1/4″ diameter models. Contact factory for details.

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