Ambient Temperature; Installation; Electrical Connection; Dissection Drawing - PYD Electrobombas CX Série Manuel D'instructions

Fig. 1. Mimimum inlet pressure-NPSH

4. Ambient temperature

Ambient temperature: maximum+40ºC , if the
ambient temperature exceeds +40ºC , or the
motor is located more than 1000 meters above
sea level, the motor output (P
ced due to the low cooling effect of the air, in
such cases, it may be necessary to use a motor
with a higher output.
Fig. 2. Relationship between motor output (P
and ambient temperature.
From the Fig.2, the pump is installed up to al-
titude 3500 meters, P
the ambient temperature is up to 70ºC ,P
decrease to 78%.

5. Installation

1) When install pipework, must ensure the pump
casing does not bear external press of the pi-
pework.
2) The motor must never at the bottom of the
pump.
3) Pump should be mounted horizontally on a
flat solid foundation, axial inlet and radial outlet.
4) For inspection and maintenance, and have a
good ventilation, there should be at least 0.3m
) must be redu-
2
will decrease to 88%, if
2
space behindthe motor.
5) The inlet diameter of the pump must not less
than the specified size.
6) Pump should be installed in ventilated and an-
ti-freezing places.
7) If the pump is installed outside, there should
be suitable protection to avoid water entering the
electric elements.
8) Electrical connection device should ensure
that the pump would not be damaged as lack of
phase, leakage, unstable voltage and overload.
9) For best operation status, and to minimize noi-
se and vibration, should consider to have vibra-
tion reducing measure.

7. Dissection Drawing

No. Descripción
1 Motor
2 O-ring
)
2
3 Mechanical seal
4 Impeller
5 Pump body
6 Flat key
7 Drainage
8 Pump cover

8. Curve resource

Guidelines below apply to the curves shown on the fo-
llowing pages:
1. Curve tolerance to ISO9906, thick lines is recommen-
will
ded using range, beyond the curve will be the risk of
2
overload.
2. All curves are based on the motor speed of 2900r/min.
3. Measurements have been made with airless and
without solid particles water at a temperature of 20ºC.
4. Due to the risk of overheating, the pumps should not
be used at a flow 10% below the flow at the best effi-
ciency point.
5. When pumping liquids with a density or viscosity
higher than that of water, oversized motors must be
used.
6. NPSH: The curve shows the average value under the
same conditions of performance curve. When select
the pump should plus 1 meter at least 0.5 meter safety
margin.
2
Material
NBR
Carbon/ceramic/NBR
SUS304
SUS304
SUS304
SUS304
SUS304