Dial Temperature Gauges are precision instruments designed to measure and indicate temperature in boilers, heaters, heat exchangers, and process piping systems. These gauges operate on the principle of bimetallic strip expansion or gas-filled sensing systems, ensuring reliable and accurate temperature measurement across a wide range of industrial applications.
They are widely used in steam boilers, thermal oil heaters, hot water generators, and industrial pipelines to monitor process temperatures and safeguard equipment from overheating or operating beyond permissible limits. With a robust stainless-steel construction, hermetically sealed design, and clear dial display, these gauges provide accurate readings even under harsh operating conditions involving high temperature, vibration, and pressure.
Dial Temperature Gauges can be supplied with direct mounting, surface mounting, or remote capillary type sensing depending on installation requirements. The instrument comes with a shatterproof glass window, corrosion-resistant wetted parts, and precision calibration for long-term stability.
Technical Highlights
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Measuring Principle:
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Bimetallic strip type / Gas-filled system / Vapour pressure type (depending on application).
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Dial Size:
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100 mm, 150 mm, or customized sizes for clear visibility.
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Temperature Range:
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Typically 0°C to 600°C, depending on process requirement.
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Accuracy Class:
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±1% to ±2% of full scale (as per EN 13190 / IS standards).
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Mounting Options:
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Direct stem mounting (radial or axial),
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Surface panel mounting,
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Remote capillary type (up to 25 meters).
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Connection:
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Threaded (½” BSP/NPT, ¾” BSP/NPT),
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Flanged connection on request.
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Sensing Element:
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Bimetal coil / Inert gas filled bulb & capillary.
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Case & Stem Material:
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Stainless Steel 304 / 316 for corrosion resistance and durability.
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Window:
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Toughened / Shatterproof glass or acrylic.
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Protection:
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IP-65 / IP-67 sealing against dust and moisture.
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Special Features:
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Hermetically sealed case to prevent fogging,
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Anti-vibration design for stable readings,
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Optional electrical contacts for temperature control & alarms,
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Custom stem length and capillary length available.
✅ Applications:
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Steam boilers & hot water systems
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Thermic fluid heaters
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Heat exchangers & condensers
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Process pipelines carrying steam, oil, water, or chemicals
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Power plants, refineries, chemical & pharmaceutical industries
