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Home » Products » Temperature » Thermometers » 300/400/600/700 Series Vapor Actuated Remote Dial Indicating Thermometers

300/400/600/700 Series Vapor Actuated Remote Dial Indicating Thermometers

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Application Brochures
Oil & Gas
  • Indicates media temperature using a temperature-actuated liquid in the sensing element and a highly accurate, high quality pressure gauge
  • As the media temperature increases, the capillary fill fluid vaporizes, increasing pressure in the Bourdon tube to activate the movement and pointer for proper indication
  • Ranges available from -40 °F/C to 60 °F/C through 100 °F/C to 350 °F/C
  • 2-1/2", 4", 4-1/2" and 6" sizes
  • Brass, stainless steel, or phenolic case
  • Dry or liquid filled
  • Bottom, back or lower back connected
  • Mounting options: front or rear flange, bezel, and u-clamp
  • Capillary material: copper or stainless steel
  • Bulb material & dimensions: copper or stainless steel, 2-5/8" x 3/8" through 7-5/8" x 3/8"
  • The dial scale graduations are non-linear, therefore the highest degree of accuracy and readability is found in the upper half of the scale

     Note: Thermowells are recommended for pressure, corrosive fluids and high velocity applications.

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300 SERIES 25-300 2-1/2", brass case, bottom connection 25-310 2-1/2", brass case, back connection
400 SERIES 40-400 4", all stainless, bottom connection 40-410 4", all stainless, back connection
60-400 6", all stainless, bottom connection 60-410 6", all stainless, back connection
600 SERIES 45-640 4-1/2", phenolic case/brass bottom connection    
700 SERIES 45-740 4-1/2", phenolic case/stainless bottom connection    
GAUGE FILL FLUIDS 0 Dry gauge 2 -40° service
1 Glycerin 3 Silicone
MOUNTING OPTIONS 0 None 3 Rear flange2
1 Chrome front flange1 4 Bezel & u-clamp3
2 Brass front flange1 5 Stainless steel front flange4
TEMPERATURE RANGES 1 -40 °F/°C to 60 °F/°C 6 30 °F/°C to 180 °F/°C
2 -20 °F/°C to 120 °F/°C 7 30 °F/°C to 240 °F/°C
3 0 °F/°C to 250 °F/°C 8 30 °F/°C to 300 °F/°C
4 0 °F/°C to 300 °F/°C 9 50 °F/°C to 350 °F/°C
5 20 °F/°C to 220 °F/°C 10 100 °F/°C to 350 °F/°C
CAPILLARY TYPES/MATERIALS 1 Plain copper 3 Plain stainless steel
2 Armored copper 4 Armored stainless steel
CAPILLARY LENGTH ## Specify in feet    
BULB STYLES/MATERIALS 1 Plain copper 3 1/2" NPT union copper
2 Plain stainless steel 4 1/2 NPT union stainless steel
BULB DIMENSIONS 1 2-5/8" x 3/8"* 6 4" x 3/8"
2 4-1/2" x 3/8" 7 9" x 3/8"
3 8" x 3/8" 8 7-5/8" x 3/8"
4 3-1/2" x 3/8" 15 6" x 1/2" 5
5 6" x 3/8"    

* Not available for gauge sizes ≥4" or ≥16' capillary
1 Only available on 300 Series
2 Not available on 600/700 Series
3 Only available on back connection case types
4 Only available on 400 & 600 Series
5 4" gauge or larger requires 6" bulb

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  SERIES SPECIFICATIONS
Lens 300, 600, 700 Series
400 Series
Acrylic
Instrument glass
Pointer All Aluminum, black finish
Accuracy All ±2.0% full scale, Grade B, ASME B40.4
Dial All Aluminum, white background, dual scale, black Celsius scale and black Fahrenheit scale

Options & Accessories

  • Brass, Stainless Steel, or Phenolic case
  • Dry or liquid filled
  • Bottom, back or lower back connected
  • Mounting options: front or rear flange, bezel, and u-clamp
  • Capillary material: Copper or Stainless Steel

Thermowells allow a temperature instrument to be removed and replaced without shutting down and draining the process, and reduce the possibility of damage to the temperature instrument.

View NOSHOK Thermowells

For NOSHOK Vapor Remote Thermometers using 300, 600 & 900 Series Gauges:

WARNING: This product can expose you to chemicals including Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov


For NOSHOK Vapor Remote Thermometers using 400 & 700 Series Gauges:

WARNING: This product can expose you to chemicals including Nickel, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov