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CIRCULATORS FO HEATING AND AIR - CONDITIONING SYSTEMS
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Pump for circulating water
in civil and industrial community heating and air- conditioning systems.
All models are available in both the single and twin versions. |
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Construction
characteristics single
body comprising cast iron hydraulic unit and wet rotor motor. Aluminum
motor casing . Intake mouths flanged and fitted with threaded unions for
pressure gauges. techno polymer impeller tempered stainless steel
driving shaft mounted on graphite bearings lubricated by the pumped
liquid stainless steel protective rotor sleeve and stator sleeve ceramic
thrust bearing, E.P.D.M. o- rings and brass air outlet cap four pole
asynchronous motor for versions BMH and DMH , two pole asynchronous
motor for BPH and DPH versions the single-phase circulator has been
designed to work at 3 speeds at 230 V while the three-phase circulator
has been designed to work at two speeds at 230 V and three speeds at 400
V In both the speed is adjusted by means of a special selector located
on the terminal board in order to adapt the operation of the circulator
to the characteristics of the system. |
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Thermal overload protection
incorporated in the single phase version Fcr the three-phase version the
motor must be connected to the VOLTAGE supply through an external
contactor the contactor must be connected to the thermal overload
protection incorporated in the motor so as to protect it against
overloading at all speeds . |
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An automatic claret type valve
is incorporated into the delivery mouth of the twin version in order to
prevent water recirculation while the unit is not working, a blank
flange is also supplied standard if one of the two motors must be
maintained the standard pump body is PN 10 compatible with PN 6 counter
flanges in order to interchange the pumps in existing systems . |
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Circulating class:IP 42 both
single-phase and three-phase |
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Insulating class:
H - Cable grommet: PG 11 |
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Standard voltage:
single -
phase 230V / 50 Hz |
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three - phase 230V -
400V / 50 Hz |
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This product
complies with EN 60335-2-51 European standard |
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TECHNICAL DATA |
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N. |
PARTS |
MATERIALS |
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1 |
PUMP BODY |
200 UNI IS0 185 CAST
IRon |
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4 |
IMPELLER |
TECHNOPOLYMER B |
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7A |
DRIVE SHAFT |
STAINLESS STEEL AISI
420 C Hardened and tempered |
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78 |
ROTOR |
- |
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8 |
STATOR |
- |
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10 |
MOTOR CASING |
DIE CAST ALUMINUM |
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11 |
AIR OUTLET CAP |
BRASS P Zn 40 pb2 UNI
5705 |
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100 |
TERMINAL BOARD BOX |
- |
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127 |
0-RING |
E.P.D.M |
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128 |
STATOR SLEEVE |
STAINLESS STEEL AISI
321 hard. and temp. AISI 304 |
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129 |
ROTOR SLEEVE |
STAINLESS STEEL AISI
321 hard. and temp. - AISI 304 |
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130 |
CLOSING FLANGE |
200 UNI IS0 185 CAST
IRon |
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131 |
THRUST BOX SUPPORT |
STAINLESS STEEL AISI
304 L |
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132 |
BEARINGS |
CARBON EC 941 |
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Operating
range: from 1.5 to 78 m3/h with head up to15metres.
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Liquid
temperature range: for three - versions: from -10oCto+120oC
for models BPH - DPH 150/ 340. 65 T and BPH - 150/360 . 80 T:from - 10
C to + 110 C for
single- phase versions: from - 10 C to + 110
C.
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Characteristics of pumped liquid: clean, free from solids and
mineral oils, non viscous, chemically. neutral, close to the
characteristics of water (max. glycol 30%)
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Maximum operating
pressure: 10 bar (1000 kP a).
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Minimum head
pressure: values are shown in. the relative tables.
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Installation:
with MOTOR AXIS HORIZONTAL. on the delivery or return piping
with intake mouth as near as possible to the expansion tank, higher
than the maximum level of the boiler and as far away as possible from
bends elbows and unions in order to prevent water turbulence and
consequent noisiness .
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Special versions on
request: other voltages and/or frequencies. Flanging DN 80 in PN
10 / PN 16 (8 holes)
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Accessories:
threadedcounter flanges in PN 10 measuring DN 40 - DN 50 - DN 65 - DN
80 .
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