2 K SETS - Energija plus

1-2 K - NKP-G SETS
UNI 9490 – 10779 STANDARD FIRE-FIGHTING UNITS
WITH 1-2 PUMPS TWIN IMPELLER K
1-2 STANDARDISED NKP-G ENBLOC PUMPS
GENERAL DATA
These are UNI 9490-10779 compliant pressurisation units for delivering water to fire-fighting systems.
The standard version comprises:
- one or two K centrifugal electric pumps twin impeller and compensating pump (if present)
- one or two standardised enbloc NKP-G electric pumps with joint, plus a compensation pump (if present).
A diesel motor pump can be installed with NHP-G pumps units, even after the installation of electric pump/pumps units.
Constructional characteristics
BASE
Galvanised steel support for the electric pump/s, pilot pump and control panels.
ELECTRIC PUMPS
Standardised enbloc NKP-G electric pumps with joint, coupled to a three-phase asynchronous motor, performance and
size compliant with DIN-EN 733 (formerly DIN 24255)
Axial suction port, radial discharge port, pump body in cast iron, impeller in cast iron equilibrata dinamicamente,
carbon/silicon carbide mechanical seal.
Asynchronous, closed 2-pole motor, cooled by external ventilation, construction type B3/B5
K enbloc centrifugal electric pumps twin impeller, connected to an asynchronous three-phase electric motor. Axial
suction port, radial discharge port, pump body in cast iron, impeller in technopolymer, carbon/ceramic mechanical seal.
Asynchronous, closed 2-pole motor, cooled by external ventilation.
PILOT PUMP
JET 251 centrifugal self-priming pump. Cast iron pump body, impeller, diffuser and venturi tube in technopolymer.
Asynchronous, closed 2-pole motor, cooled by external ventilation.
HYDRAULIC PART
Separate suction lines for each pump, complete with vacuum pressure gauge.
Delivery of each main pump to the manifold with
connections for suction tanks, pressure gauge, pump running pressure switch, inspectable check valve with upline leak
test tap, connector for rate of flow indicator, shut-off batterfly valve, galvanised steel delivery manifold with starting
pressure switches and 15 bar expansion tank.
Pilot pump with ball valve on suction and delivery sides, check valve on the delivery side, starting pressure switch, hose
connection to the delivery manifold of the main pumps.
The size of the hydraulic part is compliant with UNI 9490 - UNI 9489 - UNI 10779.
ELECTRICAL CONTROL PANELS
One IP 55 control panel for each electric pump with duplicated front-of-panel indicator LED's, general switch, fuses,
starting contactors for electric pumps (direct up to 7,5 kW inclusive/star delta over 7,5 kW), 1 voltmeter and 1 ammeter,
12 Volt battery for alarm signalling with battery charger, AUT-0-MAN selector, START – STOP buttons, recessed selector
for operation to UNI 10779. 1 outlet with switch. Alarm contacts inside terminal box for incorrect voltage and pressure
drop are to be connected to an acoustic device (supplied with the booster)
Connector for weekly test unit (only for the main electric pumps).
Control panel for pilot pump with overload cut-out, line isolator, direct starting, AUT-0-MAN selector and indicator LED's.
120
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