Piusi MA, Инструкция по эксплуатации и техническому обслуживанию

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7. If the pump is made from conductive materials and is suitable for flammable prod-
ucts, each pump casing must be equip-ped with a suitable earthing cable: DANGER
OF EXPLOSION AND/OR FIRE.
This completes positioning.
The diameter of the intake pipe must never be
smaller than the connection of the pump, but must
be increased as the distance increases. Fluid to be
pumped with negative suction must never exceed a
viscosity of 5,000 cps at 20° C and a specific weight
of 1.4 Kg/l. These elements can cause derating and
reduce the duration of the diaphragm: DANGER OF
PREMATURE BREAKAGE.
The pumps must always be grounded irrespective
of any organ to which it is connected. Lack of
grounding or incorrect grounding will cancel the
requirements for safety and protection against the
risk of explosion.
WARNING
WARNING
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