The use of a single vacuum network pump to handle exhaust from all lab vacuum applications greatly simplifies exhaust management compared with labs equipped with numerous pumps dedicated to individual applications. One line from the outlet of the pump is directed to building exhaust lines.
Exhausted vapors from laboratory applications may be toxic or flammable in certain concentrations. VACUUBRAND strongly recommends that any VACUU∙LAN® vacuum network pump is exhausted to atmosphere. Even in instances in which the original installation is intended for use with only non-toxic vapors, effective exhausting ensures personnel safety should lab applications change at a later time.
VACUU∙LAN® vacuum network pumps may be supplied with emissions condensers – either water cooled or electronically cooled – that will condense for capture some 90 percent or more or residual vapors coming from vacuum applications. While such accessories reduce total emissions from the lab building, and offer the opportunity to reclaim or properly dispose of waste solvents, there will still be some level of vapors in pump exhaust that need to be expelled from the building though lab exhaust lines.
To properly handle exhaust, PTFE tubing lines from pumps should be routed into exhaust ducts, or secured with bulkhead fittings to exhaust ducts with continuous air flow to ensure that pump exhaust is carried out of the building. In larger labs with more than one VACUU∙LAN® vacuum network, each pump must have its own exhaust line direct to building exhaust, and must not share exhaust lines with other pumps.