Other Applications

  • Leak testing and flow/pressure measurement for any application
  • We work with you to provide a solution to your specific testing problem
  • World-leading accuracy in low flow measurement
  • Leak testing to less than 15cc/hr

Building Air-tightness & Façade Testing

Why do it? The building industry can help to reduce emissions of greenhouse gases by constructing buildings that are less prone to air leakage. Air tightness is now included in the requirements of Part L of the Building Regulations

  • Air permeability is expressed as volume flow per hour of air supplied to the space per square metre of envelope area for an internal to external pressure difference of 50 Pa
  • Building test involves connecting a fan to the building and pressurising it over a range of pressure differences. 
  • Air flow rate through the fan (equal to the air leaking through the building envelope) and the pressure difference are recorded at each fan speed.
  • To calculate air permeability, corrections are made for temperature and barometric pressure.
How our instruments are used:
  • Air flow is measured by Static Pitot Tubes (FCO68).
  • Pitot output is measured by our Precision Micromanometers (FCO520 or FCO560) or Differential Pressure Transmitters (FCO332 or FCO318)
  • Our Pressure Transmitters also provide a reading for the internal and external pressure differential of the building.

Landfill Monitoring 

In order to ascertain whether or not a brownfield site is suitable for buildings such as food supermarkets, it is essential that a survey be done, especially if it was previously a landfill tip.

Alternatively, the gas can be harnessed and used to generate power using a Biomass system.

Furness Controls laminar flow elements used with an FCO10 portable manometer have been used for many years to measure the flow passing in or out of the ground. Low flows of 20cc/min are often encountered.

Fire Door Seal Leakage Test

Fire door seals have to be leak tested to the British Standard 476-10 which specifies a limit of 16 cubic metres per hour when a pressure of 100 Pascals is applied to the top and bottom of the door.

Micro-manometers are used to monitor the test pressure, and the flow in conjunction with an FCO66 fore and aft pitot tube monitors the air passing along the duct into the test chamber.

The fan providing the test air can be set so that a pressure of 100 Pascals shows on the micromanometer, and then the reading on the flow meter must be lower than 16 cubic metres/hour to ensure a pass.

Multiple Part Leak Testing

Whether you are a manufacturer of Automotive parts, Medical Devices, White Goods or indeed almost any item, Leak testing to ensure fitness for purpose is an essential part of the process. This can be a time consuming process and one which adds assurance rather than value to your product. It is a process which needs to be optimised for maximum efficiency and this is where the FCS456 Multi Channel Sequence Box may be able to help.

Designed for direct link to our world renowned FCO750 and FCO770 leak detection instruments, the multi-channel sequence box opens a whole new window of opportunity for testing groups of components or assemblies with confidence and integrity.

Flow-checking Inhale Respirators

To protect service or military personnel from harsh working environments or chemical related incidents, protective masks with inhalation and exhalation ports are deployed. When the respirators are at near ambient pressure - when the user is not inhaling or exhaling, the valve should be isolated, when subjected to pressure or vacuum, the valve should open and an acceptable amount of airflow should be present for the users air inhalation / exhalation.

The inhale / exhale ports historically have been tested using two separate pieces of test equipment; a variable area flow meter to verify the correct flow through the respirator when subject to the specified static pressure / vacuum and an analogue pressure gauge to monitor the applied pressure / vacuum. 

Furness Controls were tasked to provide an all in one, digital solution to meet this test requirement in order to reduce the overall variation in results which is caused by test technicians interpretation of the displayed value on analogue meters.

Heat Recovery Systems

Air to water heat recovery systems are used where hot air is routinely generated as a by-product of some process such as cooking, and there is a need at the same location for heated water. Our instruments are employed by the manufacturers of these systems to test for efficiency at varying rates of air-flow and temperature.

Our temperature-compensated Differential Pressure Transmitters (FCO332) and Averaging Pitot Tubes (FCO68), in concert with a Wilson Flow Grid, provide a precise measurement of flow across the air duct as well as providing signals to control fans and louvers. Automatic data-logging ensures that the evaluation process is quick and efficient.