Check Valve New Check Valve Prevents Contamination of Filling Goods

| Editor: Dominik Stephan

Schütz presents a built-in check valve with two key functions that come into play when it is connected to a pump. Firstly, the valve reduces the risk of filling goods becoming contaminated to a minimum and, secondly, it maximises residual drainage, Schütz says. This check valve is suitable for all non-viscous and non-sticky filling goods.

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A new fitting with built-in check valve by Schutz. (Picture: Schutz)
A new fitting with built-in check valve by Schutz. (Picture: Schutz)

The new check valve has a flap that prevents unintentional flowback into the IBC when pressure differences occur while contents are being drained. If the suction pressure is interrupted during the emptying process, the flap automatically closes. Thereby it prevents the filling goods inside the pipe, and with them any residues, dirt particles or other contamination, from flowing with the changed pressure gradient back into the IBC. This ensures that the product inside the inner bottle remains clean.

In addition to this, the check valve’s downward-curving spout is mounted right at the base of the container to ensure maximum product drainage. As a result, the level of filling goods inside the container falls below that in an IBC not fitted with a check valve – as a result, the container is emptied as completely as possible, leaving only minimal product residue at the bottom.