Droplet and Mist Eliminators.

A droplet eliminator is the critical point where concentrated acids and aggressive liquids carried in the air strike the surface directly and collect there. Even 316L stainless steel succumbs to that constant acidic wetness, whereas PP is inert to acids at molecular level: it neither rots nor deforms.

No. The chevron vanes are designed at specific angles — two- or three-pass — to give an aerodynamic passage. In normal operation the pressure drop is a very low 150 to 250 Pa, which barely loads the fan.

For the best capture, the face velocity between the vanes should generally be 3 to 6 m/s. Too slow and the droplets lack the inertia to strike the vane; too fast and the captured droplets are re-entrained and escape. Our engineers size the cross-section to that range for your flow rate.

In processes carrying only clean droplets, no. Where the air also holds sticky vapours or solid particles, periodic wash nozzles are fitted so the system cleans itself.

Chevron eliminators capture the larger droplets (>20 microns) and rarely block, even in dirty, particle-laden air. Mesh pads have a dense knitted structure to catch very fine aerosols (<20 microns); their efficiency is far higher, but where dust or sticky particles are present they can block quickly.

Chromic acid, being strongly oxidising, can fatigue standard polypropylene over time. In such specific and aggressive mist environments we secure the system with PVDF (polyvinylidene fluoride) mesh pads, whose chemical resistance and thermal stability are of the highest order.

Their dense weave gives a somewhat higher resistance than a droplet eliminator, generally 250 to 500 Pa. That resistance is balanced exactly by fitting a thermoplastic fan with the right pressure curve.

That depends on the chemical load and the running hours. But our corrosion-free thermoplastic pads keep their shape and efficiency for years, provided they are not torn mechanically or heavily fouled with particles.

No. The system recirculates the water — or chemical solution — from the sump back to the nozzles with a pump. Consumption amounts only to evaporation losses and what is blown down because of contamination. The wash runs as a fully closed loop.

Because the recirculated liquid may carry particles, standard fine-orifice nozzles are not used. Instead we fit industrial non-clogging spiral nozzles with a wide orifice and good atomisation.

It is far more compact than a conventional scrubber tower. Fitted as a flanged in-line module into existing horizontal or vertical ductwork, it leaves the plant layout undisturbed.

Because the system washes itself, no daily or weekly cleaning stops are needed. Only at long intervals are the plates checked mechanically, safely, through the external inspection and service doors.

A cyclone does not filter finely — it works by brute force. If your process carries a substantial amount of liquid or sticky, abrasive sludge along with the air, a conventional vane eliminator would drown or wear through immediately. The cyclone is the first line of defence that takes that heavy load in its stride.

Absolutely. For the cyclone to generate centrifugal force the air must enter the body at a certain velocity. With an undersized fan, or if the flow falls away, no vortex forms and separation efficiency drops sharply.

Particles striking the wall at high speed can cause mechanical erosion. For processes with a heavy solids load we therefore build the cyclone not in standard PP but in highly wear-resistant HDPE or UHMWPE, with extra wall thickness.

Because the cyclone is the first equipment to meet the heavy liquid or solid load, it usually sits close to the process outlet and ahead of the main ventilation and filtration. Its compact form lets it be fitted in-line into your existing layout.