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Swagelok® Thermometers

Obtain reliable temperature readings and field calibration with easy-to-use Swagelok dampened-movement bimetal thermometers.

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Swagelok’s thermometers have hermetically sealed cases, in accordance with ASME B40.200, to prevent fogging and moisture damage to internal components and are factory calibrated to meet ASME B40.200. They provide 50% over- and under-range protection against damage to internal components up to 500°F (260°C). Silicone-free gel inserts dampen vibration effects.

Acrylic, glass, polycarbonate, and safety-glass lenses are available to meet a range of application requirements with all-welded 304 stainless steel construction standard and 316 stainless steel process connection and stem available. Anti-parallax dials provide for easy reading with the thermometers having external adjustment for easy field calibration.

Available options include no dampening, NIST-traceable calibration certificate, silicone liquid fill (not available with standard dampening, with glass lens options, or for dial ranges over 500°F [260°C]), 316 stainless steel process connection and stem, and a NPT union lock nut.


Dial Ranges -100 to 150° through 200 to 1000°F
–70 to 70°C through 100 to 540°C
Accuracy ± 1 % of full scale in accordance with ASME B40.200
Dampening Media Silicone-free inert gel
Configurations Adjustable-angle, center-back mount, lower-back mount
Dial Sizes 3 in. (76.2 mm); 5 in. (127 mm)
Stem Sizes 0.25 in. (6.4 mm) dia; 2.5 through 12 in. (63.5 through 305 mm) lengths
Process Connections 1/2 in. NPT standard, G1/2B available

Thermometers Catalogs

Locate detailed product information, including materials of construction, pressure and temperature ratings, options, and accessories.

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