Pressurized Cabin

Fully automatic air control.

Any ef­fi­ci­ent pro­tec­tive ven­ti­la­ti­on sys­tem is ba­sed on pres­su­ri­zing a par­ti­cu­lar space in or­der to keep pol­lu­ted air out.

For this pur­po­se the in­si­de of the ope­ra­tor’s ca­bin of a con­struc­tion ma­chi­ne is kept un­der con­stant over­pres­su­re to prevent outs­ide air from pe­ne­tra­ting through any leaks. Ac­cor­ding to DGUV 201-004 re­gu­la­ti­ons, this over­pres­su­re nee­ds to be at a le­vel bet­ween 100 and 300 Pa (Pas­cal).

Pressure control:
Fully automatic safety

One of the in­tel­li­gent so­lu­ti­ons of SEKA pro­tec­tive ven­ti­la­ti­on sys­tems is an au­to­ma­ti­cal­ly con­trol­led blo­wer. At the time of de­li­very, ef­fec­tive sea­ling re­qui­res only 30% of the ma­xi­mum blo­wer ro­ta­ti­on in or­der to achie­ve an air pres­su­re of 130 Pa in­si­de the ca­bin. This va­lue will be in­crea­sed au­to­ma­ti­cal­ly in or­der to com­pen­sa­te for the in­cre­a­sing fil­ter re­sis­tan­ce and keep the over­pres­su­re in­si­de the ca­bin at a con­stant le­vel.

Our high-per­for­mance blo­wers in com­bi­na­ti­on with fil­ters po­si­tio­ned at the pres­su­re side of the sys­tem are able to ge­ne­ra­te dif­fe­ren­ti­al pres­su­res of se­veral hund­reds of Pas­cal. This puts the SEKA tech­no­lo­gy in a po­si­ti­on to main­tain a con­stant­ly pres­su­ri­zed ca­bin whi­le gua­ran­te­eing ma­xi­mum fil­ter life.

Comfort with cost benefits

The pres­su­re-de­pen­dant blo­wer con­trol not only au­to­ma­ti­cal­ly ad­justs its­elf to the chan­ging fil­ter re­sis­tan­ce. It also com­pen­sa­tes leaks in the ou­ter skin of the ca­bin. This will en­su­re con­ti­nuous­ly re­lia­ble ope­ra­ti­on of the pro­tec­tive ven­ti­la­ti­on sys­tem wi­thout any ma­nu­al in­ter­fe­rence.

Ano­ther as­pect is a so­lid eco­no­mic ad­van­ta­ge due to high fil­ter life and in­crea­sed avail­a­bi­li­ty of the ma­chi­ne, sin­ce the safe­ty of ope­ra­tors es gua­ran­te­ed even if the ca­bin is not com­ple­te­ly tight.


The simple way to overpressure

The in­cre­a­sing pol­lu­ti­on of the fil­ter in­crea­ses their re­sis­tan­ce which has a no­ti­ce­able ef­fect on the air flow rate of a ven­ti­la­ti­on sys­tem. The more the fil­ters are clog­ged the smal­ler will be the air vo­lu­me pas­sing through them. This also re­sults in a re­du­ced over­pres­su­re in­si­de the ca­bin.

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