Protea Limited products

Protea supplies heated sample lines of lengths 1m to 50m for the sampling of gaseous samples where sample temperature control is imperative. With dedicated integrated calibration lines and robust end fittings, these lines are suitable for fixed or mobile applications. Protea also supplies ATEX approved heating elements for our heated lines, enabling sampling to be made from zoned areas.

Fixed or mobile sample probes, stainless steel or PTFE lined, Protea is able to provide a solution to measurement from any sample point. With integrated sample filters of ceramic, PTFE, or microfiber construction these probes ensure that the sample passing to the analytical equipment is of sufficient quality to enable long life of equipment.

Protea’s in-house Temperature Control Unit (TCU) has been designed to allow simple use of heated sample lines and heated sample probes with Protea’s range of gas analyser. The controller unit contains PID control for accurate set-point of heated sampling equipment, such as at 180°C for incineration monitoring applications. The design of the controller has taken into account the requirements of stack emissions testing, and so the controller allows for independent heating of the heated sample probe from within the same controller. Using Protea’s own heated lines, the power for the probe filter can be delivered up the sample line making on-site installation simple and quick. The controller also has digital alarm outputs to give status indication to the gas analyser, ensuring the system can take action if heated parts go low.

For measurement of gases that do not require hot measurements, Protea can supply sample probes of various material construction. This includes probes made of materials such as PEEK allowing for measurement of possible corrosive gases.

For customers with specialised gas measurement applications, Protea can provide customised sampling parts in order to ensure the requirements of each application are met. This can include unique arrangements of valves, filters and probes that can be supplied of the correct choice of materials and construction to ensure long-life and low downtime for the analytical system.

For gas sampling, Protea can provide sample lines of PTFE or PFA of various diameters and lengths at low cost. Sample lines can be provided `bundled` into sets with gas fittings installed, ready to be used out of the box.

Protea’s gas analysers are extractive gas analysers and as such we need to ensure repeatable, consistent sample flow is provided to the equipment. The choice of pump is of great importance to ensure high uptime of analytical equipment. Protea can supply low-cost, low flow sample pumps for mobile applications. For sampling of corrosive gases, correct choice of pump diaphragms and seals is required and Protea can supply based on our experience from many process and emissions gas measurement applications.

Filtering of gas for particulate matter is of great importance to ensure high uptime for gas analysers and sample pumps. With Protea’s experience of process and emissions monitoring of many different applications, we can recommend the best choice of filter material and porosity. With our advanced FTIR gas analysers we are able to source and supply filters that show little off-gassing, which can often be a problem for some filters supplied.