Overview
The Wika TG53 bimetal thermometer is a heavy-duty process instrument engineered for accurate temperature measurement in demanding industrial environments. Manufactured in accordance with the ASME B40.200 standard, this model delivers ±1% accuracy across the 0-200°F scale and features an adjustable back mount with 1/2″ NPT connection for flexible installation on vessels, pipes, and process equipment.
Key Features
- Hermetically sealed case with IP66 (NEMA 4X) ingress protection for harsh external conditions
- Dished dial (anti-parallax) for ease of reading
- Options include 316SS construction, case filling, and dampened packed bearing to minimize pointer oscillation
- External reset for reference temperature adjustment
- Designed for use in chemical, petrochemical, oil and gas, power engineering, and shipbuilding industries
- Adjustable stem and dial orientation enables optimal process connection
Technical Specifications
- Scale Range: 0–200°F
- Process Connection: 1/2″ NPT male thread
- Stem Length: 4 inches
- Stem Diameter: 1/4 inch
- Dial Size: 5 inches
- Mount Type: Back mount, adjustable
- Accuracy: ±1% of full scale (ASME B40.3)
- Ingress Protection: IP66 / NEMA 4X
- Permissible Ambient Temperature: –40 to +100°C
- Maximum Operating Pressure: 25 bar static
- Standard: ASME B40.200
- Window: Flat instrument glass
Typical Applications
The TG53 is widely used for general process instrumentation in chemical and petrochemical industries, oil and gas production, power generation, and water/wastewater treatment. It is particularly suited for applications requiring temperature measurement in harsh and aggressive environments and in systems subject to high vibration.
Compatibility & Replacements
Compatible With
- Vessels and pressure equipment with 1/2″ NPT bottom or back connections
- Process piping and instrumentation (P&ID) systems in chemical plants
- Heat exchangers, reactors, and distillation columns
- Oil and gas pipelines and production equipment
- Power plant condensers and boiler systems
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. This TG53 5″ dial variant may replace other WIKA bimetal thermometers with matching 1/2″ NPT connections and 0–200°F range; confirm exact model designation with WIKA documentation.
Works With
- Thermowell and protection tube assemblies (recommended for pulsating or turbulent flow)
- Sealant and adaptor fittings for pipe mounting
- WIKA instrumentation manifolds and isolation blocks
