Industrial Apparatus Services provides foam system calibration testing utilizing certified accurate, electronic flow rate calculation technology.
Foam Calibration is tested at multiple discharge flow rates through each discharge and real-time water/foam solution calibration rates are determined at each discharge flow rate.
Foam System Calibration Tests can be performed on-site using our mobile foam system calibration testing trailer. All water pump testing is completed per NFPA standards. All pump test results are professionally documented.
Industrial Apparatus Services offers “state of the art” foam system calibration testing through the use of our mobile foam system / pump testing trailer and specially trained personnel.
Our foam calibration testing procedure determines the exact amount of “foam solution” being provided to each discharge by the foam system, at each of the preprogrammed solution ratios and through various discharge flow rates. We are able to determine this information by using a very accurate digital scale that constantly weighs the water in the 300 gallon “Foam Supply” tank, many times per second and uses that weight information to display a “real time” foam solution flow rate. This information is compared to known values in order to determine the accuracy of the foam system and enables us to ensure that the system is performing within the standards set forth in NFPA 11 – Standard for Low-, Medium-, and High-Expansion Foam. If a particular foam discharge is off the charts, our technicians can then check the condition of the metering
valve, ratio controller, and associated plumbing to determine if a malfunction is being caused by a blockage or if the metering valve simply needs to be re-calibrated.
A thorough and proper test of a foam system includes the flow testing each discharge at various foam solution settings and discharge flow rates. A printed report of the test results for each discharge, foam solution percentage, and discharge flow rate is provided upon completion of the test.
An additional benefit of this testing is that the procedure that we utilize thoroughly flushes the foam system with water since the procedure involves replacing the foam concentrate that exists (or may exist) within the foam system plumbing with water during the test.
A convenient time to conduct a foam system calibration test is right after conducting your water pump test, therefore our “foam calibration testing trailer” incorporates a high flow test manifold which can be used to low
in excess of 5,000 GPM. Discharge flow rates are determined, using pitot instrumentation, with this manifold during foam calibration testing. Our trailer also comes equipped with a very accurate flow meter that can be place in the inlet water supply in order to verify flow from large GPM monitors and aerial devices that would be difficult or impossible to pitot test.
Flow meters installed on fire apparatus can also be calibrated with this equipment. We recommend regular re-calibration of all flow meters.