Frame Installation; Hydraulic Connection; Precautions; Guidelines For The Hydraulic System - Xylem e-IXP Installation, Operation And Maintenance Instructions

4.2.4 Frame installation

• The frame must be rigid and must not vibrate during operation
• The contact surface of the pump and motor feet support bases must be as level as possible
• Position the pump and the motor at a distance that allows the coupling to be fitted
• Ensure a gap of 4-6 mm (0.16-0.24 in) between the frame and the motor to allow for vertical
• Make sure that pump and motor are securely attached to the frame.

4.3 Hydraulic connection

4.3.1 Precautions

WARNING:
The piping system must be sized to ensure safety at the maximum operating pressure and
temperature.
WARNING: Danger of hot and/or toxic liquid escaping from non-sealed piping system
connections
Support the piping system independently to prevent them from weighing on the unit. Secure
the piping system to the unit ports making sure to comply with the permitted forces and
torques. Install appropriate gaskets between the unit and the piping system.
WARNING: Hot surface hazard
If the temperature exceeds 60°C (140°F), isolate the unit before touching it.
NOTE:
When carrying out welding activities never use the unit for grounding: risk of pitting damage
to the bearings.
NOTE:
Residues from welding work or other impurities in the pipes lead to pump damage. The type
and the duration of the cleaning activity during the flush and pickling operations must be in
accordance with the used casing and sealing materials. Use a filter with 0.5 mm (0.02 in) mesh
and 0.25 mm (0.01in) wire diameter made of corrosion-resistant material. Insert a filter with a
section three times that of the pipeline.

4.3.2 Guidelines for the hydraulic system

1. Support the piping system independently to prevent them from weighing on the unit.
2. Remove any welding residues, deposits and impurities from the piping system in order to
3. To reduce the transmission of vibrations between the unit and the system and vice versa,
4. In order to reduce flow resistance, the pipe on the suction side must be:
e-IXP, e-IXPC, e-IXPF – Installation, Operation and Maintenance Instructions
adjustment in case of replacement.
avoid damage to the unit: the method and duration of the cleaning operation must be
adapted to the materials of the unit and the gaskets.
install:
• anti-vibration joints on the suction and discharge sides of the unit
• dampers between the unit and the surface on which it is installed.
• As short and as straight as possible
• For the section connected to the unit, straight and without bottlenecks, covering a
length equal to at least six times the diameter of the suction port
• Wider than the suction port; if necessary, install an eccentric reducer that is horizontal on
top
• Without bends; if this cannot be avoided, bends of a radius as wide as possible
• Without traps and goosenecks
en – Original instructions
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