Tecfluid S.A products

Control panels, pilot plants, measurement and control on machinery, water purification (osmosis), control of gas burners, industrial and process refrigeration, treatment ovens.

The 6000 series flowmeters work according to variable area principle, which is obtained by a float that moves inside a borosilicate glass tapered tube. The fluid flows up through the tapered tube forcing the float to a position with sufficient free area to enable the flow to pass, where there is an equilibrium of forces. Each position of the float corresponds to a value of flow rate. 

A fluid flows upwards through a tapered tube in vertical position and displaces a float until it reaches an equilibrium point. Each position of the float corresponds to a different flow rate, which is shown by the equivalent scale engraved directly on the tube.

A spring C keeps a disk B in zero flow rate position. When the fluid flows through the disk at a specific speed, a force is made on the disk B, moving it to an equilibrium position.

The first figure shows the COVOL flowmeter at the beginning of a cycle, when the measuring chamber (in blue) is completely full. The flow of the liquid through the flowmeter makes a force on the oscillating piston, so that it starts turning. From this moment, the measuring chamber is divided in two parts: inlet (in red) and outlet (in blue). 

By means of float with magnetic field and reed switches. One or more reed switches are placed at a specific height inside a guide tube. The changes in liquid level modify the float position in this guide tube, so that when it reaches the switch position, it changes its status, providing an output signal for level detection.

Float level switches. When a liquid reaches the level where the level switch is positioned, its float follows the level variations in a such way that the articulated rod is moved. A magnet placed in the opposite side of this rod activates a switch. This switch can be either a micro-switch, a reed switch, an inductive detector or a pneumatic switch, depending on the application requirements.

Vibrating fork level switch for liquids and solids. Compact and Robust. High resistance to high temperatures and pressures. Possibility of selection of activation, with or without the presence of product, and detection of granular solids. No moving parts and low maintenance.

A reed switches / resistance chain is mounted inside a guide tube. The changes in liquid level modify the float position in this guide tube, so that it activates the reed switches providing an output signal of variation of resistance, which can be later converted into an analog output of voltage or current.

According to Archimedes principle of body submerged in a liquid. A float with a density similar to the measured liquid is suspended by a spring to maintain an equilibrium with its weight. This float is always submerged in the liquid (not floating on the surface). A variation in the liquid level  produces a change in the weight of the float (partially submerged), which can be measured by the extension or compression of the spring that supports the float . The variation in the length of the spring is transmitted to the indicating needle via a magnetic coupling .