Additional Services

Backflow Preventer Test Kit Certification

Smith Instrument’s NIST traceable calibration facilities provide calibration and certification of all the major manufacturers of Backflow Preventer Test Kits.

Calibration and Certification Includes:

  • Evaluation
  • Adjust and calibrate gauge to manufacturers original specifications
  • Provide Certificate with "as found" and "as left" data traceable to NIST
  • Tagging
  • Quick turnaround

Calibrate/Certify/Repair: Orange Research, Watts, Febco, Acugage, Ames, Gage-It

Calibrate/Certify: Midwest, Conbraco, Apollo, Zurn-Wilkins, Duke-Barton

* Gauges must be certified annually according to Department of Environmental Quality Cross Connection Rules Manual, dated October 2008

Diaphragm Seal Filling

We stock all the diaphragm seal components, fill fluids and filling equipment to assemble, fill, and calibrate the seal/gauge assembly to meet your needs. Our experienced, factory-certified technicians can respond to your MRO needs as well as project requirements. We are familiar with, and equipped to handle, all the unique needs of the Sanitary, Process, and Automotive industries.

Actuated Valve/Control Valve Assembly & Service

Our valve assembly shop is staffed with factory-authorized technicians, and is equipped to handle any type of automated valve assembly. They are backed by a large inventory of valves, actuators, positioners, switches, solenoid valves, and mounting hardware. We assure that all assemblies are done to your standards. Have a problem with a valve in the field? Our technicians are prepared to solve your valve problems on-site.

  • Actuated Valve/Control Valve Assembly & Calibration
  • Performance Verification & Certification - Including Linearity/Deadband/Hysteresis, ANSI Leakage Rates, Cycle Time and Network Capability
  • Control Valve Sizing
  • Valve Communication & Bus Networking
  • Complete Field Service - Start-up, Commissioning, Troubleshooting & Repair


Training programs vary from simple lunch & learn sessions, to multi-day factory training. Sessions can be tailored to meet your specific needs. Contact us to discuss your needs or check out our training section to see currently scheduled training opportunities.

Training Opportunities

Service Department

In addition to our in-house services, we have field service technicians covering Lower Michigan, Northern Indiana, and NW Ohio. They are fully trained in instrument start-up, troubleshooting and repair, including automated and control valves; pressure, temperature, flow, and level devices; and radio telemetry systems.

  • Instrument Start-up (Final Element - Pressure, Temperature, Level & Flow)
  • Troubleshooting & Repair (Final Element - Pressure, Temperature, Level & Flow)
  • Calibration & Certification (On & Off Site)
  • Training Services
  • Radio Telemetry Systems (Design, Installation, Commissioning)
  • Instrument Panel Building
  • Diaphragm Seal & Capillary Filling
  • Service Contracting