3.4 Permitted use
3.5 Improper use not permitted
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3.0 TECHNICAL INFORMATION
2
VAL.130.--.M.EN Issue: A1
09.16
12
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granular material.
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slide valve is designed for applications in which interception of gravity-fed or pneumatically conveyed
dry powders or granules is required.
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slide valves can only be used with maximum internal pressure or negative pressure according to the
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slide valves made from aluminium alloy are not designed to bear the weight of equipment installed below
(e.g. screw feeders, belt conveyors, vibratory feeders etc.)
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slide valves must be closed only by the moving product column.
Every other use must be considered as improper and therefore not permitted.
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slide valves food version (model F), compliant to EU 1935/2004, are suitable for application with E-
simulant, max. temperature of 80 °C and 3 days constant in-contact time.
It is forbidden to start operating the slide valve until the plant or equipment in which it is to be incorporated has
been declared as compliant to the relevant national and local legislative provisions in force.
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It is forbidden to use the slide valve for granular materials (stones, sand, gravel, etc.) grater than 20mm in the
bigger dimension.
It is forbidden to use the slide valve unless the seals are intact.
It is forbidden to use the slide valve as a support even if it is not running. Apart from falling, there is risk of
damaging to the valve.
It is forbidden to operate the valve in the absence of material.
It is forbidden to wet the valve with water or grease it.
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Do not use the valve in the absence of the safety guards.
It is forbidden to use the slide valve for materials which can cause radioactive contamination.
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valves are not suitable for applications with liquids or with pressure values different from atmospheric
pressure.
3.3 Operating principle
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equipment upstream.
