Thermal Instrument Mass Flow Meters: Flexible Solutions, Durable Equipment, and Dependable Results

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Insertion Thermal Mass Flow Meters

Inline Thermal Mass Flow Meters

Thermal Mass Flow Switches

Insertion Probe Thermal Mass Flow Meter Features

• Versatile solution for liquid or gas measurement

• Multi-point flow measurement available

• Repeatable rates within +- .2%

• 100:1 turndown range (1000:1 Application dependent)

Inline Thermal Mass Flow Meter Features

• Unobstructed Path

• 100:1 Turndown range (1000:1 Application dependent)

• Repeatable rates within +- .2%

• Low Pressure drop

• Mass Flow Measurement

• Stainless Steel Material Standard

Flow Switch Specifications

• Calibrated to each application

• Mass flow technology

• (2) Ea. 10 Amp SPDT Relays 

• Adjustable Set Points

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Ryan Equipment

Serving Eastern PA, NJ, & DE

PO Box 3232
Easton, PA 18043

David Ryan
Phone: 610-252-6160
Cell: 610-517-2400
Fax: 610-252-6161

M. S. Jacobs & Associates

1 School St., PO Box 93
Batavia, NY 14021

Al Zazzara
Phone: 585-344-0102
Fax: 585-344-0315

Flow Control, Inc.

2010 Q Street
Omaha, NE 68107

Richard Watkins
Phone: 402-738-8515
Fax: 402-738-8516

Control Systems West

12857 N.W. Jackson Quarry Dr.
Hillsboro, OR 97124

Rob Boyce
Phone: 503-647-0979
Fax: 503-647-0983

Lesman Instrument, Main Office

135 Bernice Dr.
Bensenville, IL 60106-3366
P: 800-953-7626
P: 630-595-8400
F: 630-595-2386

Lesman Instrument, Butler Office

5160 North 125th Street
Butler, WI 53007-1332
P: 800-837-1700
P: 262-923-1790
F: 262-923-1797

Hatfield and Company, Inc., Dallas Area

2475 Discovery Blvd.
Rockwall, TX 75032
Phone: 972-285-0115
Fax: 972-289-8934
Toll-Free: 800-879-9191

Hatfield and Company, Inc., Austin Area

12416 Hymeadow Dr., #218
Austin, TX 78750
Phone: 512-918-9663
Fax: 512-918-9669
Toll-Free: 800-879-9191 (Rockwall Office)

Hatfield and Company, Inc., Houston Area

11922 Cutten Rd.
Houston, TX 77066
Phone: 281-893-8870
Fax: 281-893-9247
Toll-Free: 800-899-3163

Hatfield and Company, Inc., Longview Area

414 E. Loop 281, #8
Longview, TX 75605
Phone: 903-291-0223
Fax: 903-291-0316
Toll-Free: 800-753-9445

Hatfield and Company, Inc., Odessa Area

1904 W. 3rd
Odessa, TX 79763
Phone: 432-337-4737
Fax: 432-333-9939
Toll-Free: 800-264-3132 or 800-400-4282

Hatfield and Company, Inc., New Orleans, LA

2419 Delaware Ave
Kenner, LA 70062
Phone: 504-469-6432
Fax: 504-468-9474
Toll-Free: 800-999-5788

Hatfield and Company, Inc., Tulsa, OK

5710 E. Admiral Blvd.
Tulsa, OK 74115
Phone: 918-838-9987
Fax: 918-838-1989
Toll-Free: 888-388-7724

Measurement Resources

Serving Southern Texas

5233 IH 37
Suite A-1
Corpus Christi, TX 78408

Clay Hammond
Phone: 361-882-3444
Fax: 361-882-3441
Cell: 361-765-9819

R A Kirby Sales

Serving Ontario, Quebec, Newfoundland and Labrador

200 Viceroy Road, Unit 16
Concord, Ontario L4K 3N8
Phone: 905-738-6225
Fax: 905-738-4355

Sure Flow Products

28265 Beck Rd, Bldg C-11
Wixom, MI 48393

Marty Petrill
Phone: 248-380-3569
Fax: 248-380-3568


Serving South Ohio, Kentucky, So Counties of Indiana, West Virginia, Western PA

2615 Arbor Tech Drive
Hebron, KY 41048

Jason Bowman
Phone: 859-525-9890
Fax: 859-525-9891


Allée de Chamillé - ZI du Bois des Lots

Frédéric Buskowa
Telephone: +33 (0)4 75 54 86 05
Fax: +33 (0)4 75 54 86 09

Beijing Puttom Instrument Inc

Rm. 901, JinJiYeBld.#2
Sheng Gu Middle Rd
ChaoYang Beijing 100029

March He
Phone: 86-10-64415004
Fax: 86-10-64416692

M&C Engineering

425-10, Annan-Ro, BuPyeong-Gu
Incheon, 21310, Korea

Grace Jeong - General Manager, International Business Dept.
Phone: 82-32-512-6230
Fax: 82-32-513-6230

Isoil Industria spa

F.lli Gracchi, 27
Cinisello Balsamo (MI)
Italy 20092

Massimo Spotorno
Phone: 0266027.242
Cell: 335-879-7271
Fax: 026123202

Eastern Energy Services PTE Ltd.

Serving Southeast Asia

60 Kaki Bukit Place #02-19
Eunos Tech Park Singapore,
SG 415979 Singapore
Telephone: +65-6748 691
Fax: +65-6748 6912

Duncan Co

Serving Northern Iowa, Western Wisconsin, MN, ND, and SD

425 Hoover St. NE
Minneapolis, MN 55413
Phone: 800-677-1776
Fax: 612-331-4735

Lesman Instrument, St. Louis Office

Tom Pataky
Phone: 800-953-7626

King Gage Engineering

119 Uxbridge Road
Mendon, MA 01756

Chris Hack
Phone: (508) 482-0033
Fax: (888) 435-1062

Innovative Process Controls LLC

Serving Southern CA & Las Vegas, NV

400 Continental Blvd.
Sixth Floor
El Segundo, CA 90245

David DiDomizio
CA Phone: 310-414-3700
CA Fax: 310-414-3710
Nevada - P: 702-759-0290 F: 702-759-0289

Central Pacific Controls

Serving Hawaii, Guam, and South Pacific US Territories

500 Ala Moana Blvd., Suite 7400
Honolulu, Hawaii 96813

David DiDomizio
Phone: 808-450-2483

Engineered Process Controls

Serving Washington, Oregon, Montana, and Northern Idaho

14522 NE N Woodinville Way
Suite 201
Woodinville, WA 98072

David DiDomizio
Phone: 425-844-8901
Fax: 425-844-8904

W.T. Maye, Inc.

Serving entire state of TN, Western KY, and Northern AL

10805 Kingston Pike
Suite 120
Knoxville, TN 37934

Chip Maye
Phone: 865-622-8811
Fax: 865-622-2331

Durkin Equipment Company

Serving Western Missouri & Kansas

1445 Swift Avenue, N.
Kansas City, MO 64116

Jay Bailey
Phone: 816-421-7722

Criterion Incorporated

Serving Industrial Markets in North & South Carolina

5007 Monroe Road
Suite 100
Charlotte, NC 28205

Kevin Smith, Kirk Jones, Jim McNoldy, Walt Mays, and Jack Patterson (GM)
P: 704-535-6262
F: 704-535-8825

Western Engineering

Serving Entire State of Utah, Eastern Nevada, and Southern Idaho

4306 South Main Street
Salt Lake City, UT 84107

Jim Williams, Gary Fitzgerald
Toll Free: 800-409-6789
O: 801-268-3333
F: 801-268-3358

Volition Controls

333 N. Falkenburg Road
Unit A-113
Tampa, FL 33619

Alex Reichert - Sales Manager
P: 813-714-7006
F: 813-714-7536

Andrews Industrial Controls

Serving Northern Ohio including Cleveland, Akron, and Toledo

8518 Mentor Avenue
Suite H
Mentor, OH 44060

Tim O'Hair

No sales reps found

It looks like there are no sales reps serving your region. Please contact Thermal Instrument Company directly or fill out our Application Inquiry Form.

Traditional Contact

217 Sterner Mill Road, Trevose, PA 19053
Tel: 215-355-8400    Fax: 215-355-1789
Business Hours: Monday-Friday, 9-5 ET

Thermal Instrument Mass Flow Meters: Flexible Solutions, Durable Equipment, and Dependable Results.

Thermal Instrument is a manufacturer of mass flow meters that offer accurate, repeatable, and dependable measurements of liquids and gases for both industrial and environmental processes. Thermal Instrument has been manufacturing thermal mass flow meters for more than 50+ years and continues to put that experience to work for our customers.

Our Mass Flow Meters continue to be solutions for: Landfills, GHG Emissions, Flare Gas, Natural Gas Measurement, Pollution Control, Petrochemical, Chemical Processing, Measuring Hydrogen Gas, Food and Beverage, Pharmaceutical, Semi-Conductor Manufacturing, Sub-Metering of clean process gases, and Power / Utility.

Why should you use a Thermal Instrument Mass Flow Meter?

  • Unobstructed path of our Model 600 for negligible pressure drop
  • Versatility of our Model 62 Insertion Probe for multiple process connections and applications
  • Excellent Turndown (100:1) for wide-ranging flow
  • Repeatable Results
  • Accurately Measure Flow, Total Flow, and Temperature
  • Rugged Construction – Stainless Steel, Hastelloy C, Tantalum, and other materials with available protective coatings

All of our in-line Thermal Mass Flow Meters and Flow Switches provide reliable, accurate flow measurement with no obstructions to the actual flow path. Our internal sensing circuit does not come into direct contact with the flow stream and are completely protected from any adverse process conditions. We utilize this technology across our product lines from in-line, to insertion probes, to our flow switches.

Latest News

Thermal Instrument Operations: COVID-19

Thermal Instrument (TI) is continuing daily operations in a much scaled back fashion under the "Critical Manufacturer Clause" as posted by the U.S Dept of Homeland Security. TI supports the following industries that are defined under the Critical Manufacturing Clause:

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New Electronic Transmitter Provides Multiple Solutions for Industrial Process Control

(TREVOSE, PA – March 9, 2020) Thermal Instrument Company released our Model # FS16 Integral Electronic Transmitter for measuring liquid and gas flows with standard 4-20Ma output and (2) 10 amp SPDT relays. Transmitter is factory calibrated to fluid and operator can set relays for notification when a condition(s) is met as necessary.

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3-A Sanitary Flow Meter Approval

Thermal Instrument Company (TIC), located in Trevose, PA, a manufacturer of Thermal Mass Flow Meters and Flow Switches, offers an approved Flow Meter / Switch for Food & Beverage processes that require the 3-A sanitary certification. The 3-A symbol is accepted by the USDA, FDA, and...

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