Lyon Petroleum Supply

formerly Marine Services 
Petroleum Measurement & Testing Equipment


Industrial, Straight, Bottom-Connected Thermometers

3", 4" & 5" Industrial, Straight, Bottom Connected Thermometers

A sturdy straight form designed bi-metal thermometer commonly used for industrial applications and OEM equipment.

Choose a model:

BC-350R      3" diameter head with calibration feature
BC-450R      4" diameter head with calibration feature
BC-550R      5" diameter head with calibration feature

• 304 Stainless Steel
• All welded construction.
• Easy to calibrate inserting Allen wrench into reset opening.
• Anti-Parallax dial avoids reading errors.
• Dials printed with large black numbers and graduations on raised ring - easy to read from any angle.
• Dustproof and Leakproof. Hermetically sealed.
• Corrosion resistant to most chemicals.

Connection Nut:
1/2" NPT standard. Can be supplied with Union Connection or other NPT sizes at extra charge.

Stem Diameter:
1/4". Standard stem lengths: 2-1/2", 4", 6", 9", 12", 15", 18", 24", including threads. Available in stem lengths up to 120".
Longer and intermediate stems, and 6 mm, 8 mm, or 3/8" diameter stems available upon request.

Bimetal element dampened with silicone for minimum pointer vibration and maximum heat transfer.
Accuracy to within 1% full span range.

Over-range protection:
100% up to 250F
50% up to 500F
10% above 500F

Thermowells are recommended for pressure, corrosive fluid, or high velocity applications.


If you want the best certification of hydrometers, centrifuge tubes and thermometers for the best cost, you need to give us a call today!

We will match or beat any other qualified laboratory certification cost!

You'll be pleased with the considerable savings for you and your company.