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Acrylic, glass, polycarbonate, and safety-glass lenses to meet application requirements.

All-welded 304 stainless steel construction standard; 316 stainless steel process connection and stem available. Hermetically sealed cases, in accordance with ASME B40.200 to prevent fogging and moisture damage to internal components. 50 % over- and under-range protection against damage to internal components up to 500°F (260°C). Silicone-free gel inserts dampen vibration effects. Anti-parallax dial for easy reading. External adjustment for field calibration.

Every Swagelok dampened-movement bimetal thermometer is factory calibrated to meet ASME B40.200.


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 NPT union lock nut are available.


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

View and purchase our most widely used products.

Discover more about how Swagelok products can work for you. Browse our catalogs or locate a sales and service center.

"Safe Product Selection: The complete catalog contents must be reviewed to ensure that the system designer and user make a safe product selection. When selecting products, the total system design must be considered to ensure safe, trouble-free performance. Function, material compatibility, adequate ratings, proper installation, operation, and maintenance are the responsibilities of the system designer and user.

Do not mix or interchange product components with those of other manufacturers."