01 / Equipment detail
Inside the product boundary
The vessel provides space for the product to expose surface area under reduced pressure. The distribution method should suit the liquid: a device suitable for a low-viscosity juice may behave differently with a pulpy puree. Liquid level, distribution and outlet pumping belong in the same operating review.
Consider inspection access, drainability and cleaning around every internal component. A vessel drawing should show the product inlet, outlet, level measurement and gas connection, rather than leaving the process path implied.
02 / Equipment detail
Gas and vapour require different decisions
The vacuum system removes released gas while maintaining the chosen operating pressure. Water vapour and product volatiles may also enter the gas path. Condensation and aroma-handling scope depend on the product temperature and the quality objective.
Ask how gas load, potential vapour load and available cooling services were considered. A vacuum pump designation alone does not define the complete duty. Confirm the exhaust route and any condensate handling as part of installation.
03 / Equipment detail
Foam margin and stable discharge
Foam can expand when pressure falls, so operating level and available headspace matter. Unstable inlet flow or an unsuitable discharge arrangement can disturb the vessel level and the gas path.
Review the discharge pump together with its suction condition and downstream pressure. Level-related controls should coordinate incoming product and outgoing flow during startup, normal running, shutdown and cleaning.
Common questions
Configuration questions
Is a condenser always required?
Condenser scope depends on vapour load, product temperature, aroma considerations and available cooling water. It should be stated for the actual duty.
Can one vessel handle juice and thick puree?
That depends on distribution, cleaning and pumping behaviour across both products. Share both recipes and operating ranges for a configuration review.