3" NOSHOK 300 Series Industrial Type Bimetal Thermometers, 30-300-025-25/125-F/C, Bimetal, 1/2" NPT Bottom Connection, 2.5" Stem Length, 25/125 ºF/ºC, Dual Temperature Scale

300 Series - Industrial Type Bimetal Thermometers With External Reset, Sanitary Tri-Clamp® Options

• Highest quality thermometers available on the market
• Easy to calibrate with 1/16" Allen key
• Corrosion-resistant 304 Stainless Steel case and bezel provide a hermetic seal to prevent lens fogging and moisture
• damage
• Sanitary Tri-Clamp® options available
• Single ºF, single ºC, and dual scale options available
• Minimum or maximum indicating pointers are available in 3" and 5" sizes

Application

• Industrial process
• Petrochemical
• Food & beverage processing
• Commercial
• Wastewater

Related Items

• 50-025-304-SS, 1/2" National Pipe Thread (NPT) Straight Shank, 2-1/2" Length, 1/2" National Pipe Straight Mechanical (NPSM) Instrument Connection, 304 Stainless Steel Thermowell
  
• 50-025-316-SS, 1/2" National Pipe Thread (NPT) Straight Shank, 2-1/2" Length, 1/2" National Pipe Straight Mechanical (NPSM) Instrument Connection, 316 Stainless Steel Thermowell
  
• 75-025-304-SS, 3/4" National Pipe Thread (NPT) Straight Shank, 2-1/2" Length, 1/2" National Pipe Straight Mechanical (NPSM) Instrument Connection, 304 Stainless Steel Thermowell
  
• 75-025-316-SS, 3/4" National Pipe Thread (NPT) Straight Shank, 2-1/2" Length, 1/2" National Pipe Straight Mechanical (NPSM) Instrument Connection, 316 Stainless Steel Thermowell

Options and Accessories

• Options and Accessories
  
  • 1/2" NPT Adjustable Union (AU), available for 3" and 5" dial sizes only
  • 316 SS Connection & Stem, available for 3" and 5" dial sizes only
  • 6 mm stem diameter, available for 3" and 5" dial sizes only
  • 8 mm stem diameter, available for 3" and 5" dial sizes only
  • Acrylic Lens (PL)
  • Certificate of Conformance
  • Heavy-Duty Stem (0.375" Dia.), available for 3" and 5" dial sizes only
  • Mounting Brackets - Consult Factory
  • Polycarbonate Lens (LL), should not be used where case temperature exceeds 300 ºF/150 ºC
  • Safety Glass Lens (SG), available for 3" and 5" dial sizes only
  • Stainless Steel Tagging (ST)
  • Tempered Glass Lens (TG), not available with Silicone Filled (SL) option.
• 1/2" NPT Adjustable Union (AU)
  
  • Can be used to reposition the dial face for better viewing
  • Also helpful when installing a thermometer where space is limited
• 300 Series Bimetal Thermometer Silicone Filled (SL)
  
  • Available only for ranges from -50 ºF (-45 ºC) to 500 ºF (260 ºC)
  • For applications where severe vibration may be a factor
  • Silicone dampens and lubricates the internal mechanism thus reducing pointer oscillation and premature wear
  • Maximum case temperature not to exceed 300 ºF (150 ºC)
  • Polycarbonate lens is standard with Silicone Fill
• Mounting Flanges - Bimetal Thermometers Various sizes and types of mounting flanges are available
• Special Dials - Bimetal Thermometers Special ranges and dials with company names, company logos, part numbers, telephone numbers, or almost any custom layout is available
• Certified Calibration
  
  • Certified calibration provides the user with a serial numbered thermometer along with a calibration sheet against a primary temperature standard
  • Traceable to the National Institute of Standards and Technology
• Glow Dial (GD)
  
  • Available only on 50-310 and 50-320 model allows up close daylight and/or distant night time viewing 5" Adjustable angle or back connect
  • Reflective Pointer
  • Two reflective clips included to indicate custom minimum and maximum limits
• Min and Max Indicating Pointers (MIP2)
  
  • The MIP2 allows you to view your minimum and maximum temperatures for visual clarification of safe operation
  • Available only on 30-310 and 50-310 model
• Min or Max Indicating Pointer
  
  • The MIP allows you to view your minimum or maximum temperatures for visual clarification of safe operation
  • Available only on 30-310 and 50-310 models (MIP)
• Stem Types
  
  • The 304 Series Stainless Steel stem is welded at the tip and case for hermetic seal
  • 1/4" (6.35 mm) diameter is standard for lengths up to 24" (609 mm)
  • 3/8" diameter, sharp tip options and optional 316SS wetted parts are also available
• Thermowells
  
  • 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.

Limitations Which Apply Are

• These units must be operated within the catalogued environmental and application parameters. Determination of failure will be made by NOSHOK, Inc.'s equipment and personnel or a certified test facility specializing in this type of evaluation.
  
  In keeping with and for purposes of product and/or manufacturing process improvements, NOSHOK, Inc. reserves the right to make design changes without prior notice.

Prop 65 Warnings

• WARNING: This product can expose you to chemicals including Lead and Nickel, which are 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

Additional Information

• Highly sensitive bimetallic helix coil is heat-treated for stress relief, and silicone-coated to minimize pointer vibration and maximize heat transfer and response time
• 360º groove around stem is a visual reference to show minimum immersion point
• Made in the U.S.A.

Note

• Thermowells are recommended for pressure, corrosive fluids and high velocity applications.
• All 316 Stainless Steel construction (case, bezel, wetted parts) is available. Please consult factory.

Technical Specification Sheet Here