Installation; Installation, Hydraulic - ProMinent Sigma X Operating Instructions Manual

7

Installation

7.1 Installation, hydraulic

WARNING!
Risk of fire with flammable feed chemicals
– Only metering pumps with the identity code option
"Multi-layer safety diaphragm with rupture signalling
with electrical signal" are permitted to meter flam‐
mable media, with back pressures over 2 bar and if
the operator puts in place the appropriate safety pre‐
cautions.
WARNING!
Warning of feed chemical reactions to water
Feed chemicals that should not come into contact with
water may react to residual water in the liquid end that
may originate from works testing.
– Blow the liquid end dry with compressed air through
the suction connector.
– Then flush the liquid end with a suitable medium
through the suction connector.
WARNING!
Product can be dangerously contaminated
Only with designs "F" or "G" - "Physiologically safe with
regard to the wetted material ...":
The feed chemical will come into contact with seals that
are not physiologically safe if the integral vent valve or
the integral relief valve opens.
– Do not route the feed chemical that escapes from
the integral vent valve or the integral relief valve
back into the process.
WARNING!
Product can be dangerously contaminated
Only with designs "F", "H" or "G" - "Physiologically safe
with regard to the wetted material ...":
The feed chemical will come into contact with seals that
are not physiologically safe if the diaphragm ruptures.
– Stop the pump safely and as quickly as possible if a
diaphragm rupture is indicated. Replace the dia‐
phragm before the second diaphragm can rupture.
The following measures are beneficial when working with highly aggres‐
sive or hazardous feed chemicals:
Install a vent valve with a return into the tank.
n
Install a shut-off valve on the discharge or suction side.
n
CAUTION!
Warning of feed chemical spraying around
PTFE seals, which have already been used / com‐
pressed, can no longer reliably seal a hydraulic connec‐
tion.
– New, unused PTFE seals must always be used.
Installation
27