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The CASE 1903676 is a flange mount dial thermometer designed for use in HVAC, plumbing, and industrial process applications where a secure panel or pipe flange installation is required. The unit features a 3.5 inch dial face for clear, at-a-glance temperature readings and a 48 inch capillary that allows the sensing bulb to reach process points while the dial remains accessible at the mounting surface. Licensed HVAC technicians, plumbers, and industrial service professionals install this type of instrument where remote-bulb sensing is needed to monitor fluid or air temperatures accurately without direct dial placement at the sensing point.
This thermometer is suited for residential and light commercial HVAC systems, hydronic heating loops, domestic hot water systems, and general process piping. The flange mount configuration allows the instrument to be secured to a panel, bracket, or pipe assembly, keeping the dial face stable and readable during system operation. The 48 inch capillary provides enough reach to position the sensing bulb at water heaters, boiler supply and return lines, or air handlers where direct bimetal immersion is not practical.
Designed as an OEM-style replacement or direct-install thermometer for residential and light commercial HVAC and plumbing systems requiring flange mount dial temperature instrumentation.
Installation is typically performed by licensed HVAC technicians or plumbers. Before installing, shut down the system and relieve pressure from any piping or vessel where the sensing bulb will be inserted. Route the capillary carefully to avoid kinks, sharp bends, or contact with high-heat surfaces that could damage the sensing line. Follow applicable local mechanical codes and manufacturer instructions for flange fastener torque and capillary support spacing.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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