Inida India
Global Global
India India
Australia Australia
UAE UAE
Metaval Menu

Home > Product Division > Temperature > Temperature Gauges > Bi-Metallic

Bi-Metallic, Temperature Gauges

Metaval’s Bi-metallic Thermometers deliver direct, accurate temperature readings without power—ideal for industrial environments where reliability and visibility matter most. The sensing element uses dual metal coils that expand at different rates to rotate the pointer. Built for rugged duty and zero-maintenance performance, these thermometers are ideal for HVAC, pipelines, tanks, and process skids.

Power-free operation with quick, responsive readings

Calibration dial:

Easy zero correction in-field

Vibration-resistant pointer with damping options

Measuring Range:

–50 °C to +600 °C (model-dependent)

Dial Size:

63 mm, 100 mm, 150 mm

Window:

Shatterproof acrylic / toughened glass

Stem Diameter:

6 mm / 8 mm / 10 mm (others on request)

Connection:

½″ NPT / BSP / custom threads

Protection Class:

IP65 / IP67

Accuracy:

±1% FSD (Class 1)

Case & Bezel:

SS304 / SS316

Stem Material:

SS304 / SS316

Mounting Options:

Bottom / Back / Every-Angle (Adjustable)

Immersion Length:

50 mm to 500 mm (customizable)

Please specify:
Model type (e.g., BTM – Bimetallic Thermometer)
Dial size (63 / 100 / 150 mm)
Mounting type (Bottom / Back / Adjustable)
Temperature range (e.g., 0–150 °C)
Immersion length (e.g., 150 mm)
Connection type and size (e.g., ½″ NPT M)
Material (case/stem – SS304/316)
Any optional features or certification requirements

Glycerin-filled case for vibration damping
Custom logo or tag plates
Dual scale (°C/°F) dial
Anti-glare or UV-resistant window
Electrical contact type (optional)

Thermowell (bar stock / fabricated)
Clamp-on adapter sleeves
Welded or threaded mounting bosses
Weatherproof protective cases

Power-free operation with quick, responsive readings
All-angle visibility – Available in bottom, back, and adjustable stem types
Wide operating range – Up to 600 °C depending on model
Vibration-resistant pointer with damping options
Weatherproof & corrosion-resistant cases – SS304/SS316
Calibration dial – Easy zero correction in-field

Every Metaval Bi-metallic Thermometer undergoes:
100% functional check for pointer movement and response accuracy
Calibration validation against certified master thermometer
Leak test on case sealing to ensure IP protection rating
Stem straightness and finish inspection
Optional test certificates:
Calibration Certificate (NABL-traceable)
Hydrostatic test (if integrated with thermowell)
Material Test Certificates (MTC EN 10204 3.1)

HVAC & Refrigeration Systems
Oil & Gas Pipelines
Heat Exchangers & Boilers
Chemical Reactors & Storage Tanks
Water & Wastewater Treatment
Food & Beverage Utilities

ISO 9001:2015
CE Marked
IP65 / IP67 (Ingress Protection)
RoHS compliant (lead-free design)

Documentation

Complete In-House Manufacturing Control

From forging and casting to machining, assembly, and testing — every step is managed under one roof to ensure consistent quality, faster lead times, and zero compromise.

Contact Us

Get in touch with our team for additional information on product pricing, technical data, project support and more.