1.3. Identification of the units
2. Systems description
Every unit is provided with an identification plate similar to that shown in fig. 1, on
which the following is reported:
−
Trademark, denomination and manufacturer address
−
Unit type
Month/year of manufacture
−
−
Serial (N./Ref.)
Total power
−
Pressure switches calibration
−
The pressurisation unit is composed by:
−
identical motor-driven pumps connected in parallel, single-phase or three-phase,
with horizontal or vertical axis, with sequential start-up with cyclical inversion, in
variable number from 1 to 3 and chosen according to the requested features
steel full port intake and flow collectors, threaded (or flanged) and galvanised
−
−
steel, galvanised unit base and support for electric board
−
one check valve for each pump, assembled at intake
ball valves with inlet for each pump one assembled at intake and one at flow
−
−
a coupling stub pipe for each pump assembled at intake and provided with
threaded hole for the connection of eventual air feeder
−
rubber anti-vibrating supports with metal core
manometer with radial connection
−
−
electric board in IP 55 plastic box
Series
Type:
Year of manufacture:
Serial (N./Ref.):
Total power: ..................
Press. calibration
fig. 1
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