Download Tender Document - High Commission of India, Colombo

Development of Atchchuvali Industrial
Estate in Jaffna District, Sri Lanka
Specifications – Waste Water Drainage System
• Generators;
• Other equipment of dignity. The tests include:
• Visual inspection;
• Measurements;
• Capacities;
• Welding;
• Coating;
• Numbers of delivery;
• Noise;
• Vibrations.
10.7.5.5.4 Pumps
All pumps shall be tested after installation as follows:
• Complete with all shaft bearings, thrust bearings
and directly driven auxiliaries or, where this is
impracticable, the Contractor shall state what
allowances shall be made for losses incurred by
these items, and shall demonstrate the accuracy
of these allowances to the satisfaction of the
Employer.
The pumps shall be tested in the factory of
origin; test certificates have to be handed over to
the Employer.
The pumps shall be tested under the following
conditions:
a) The pumps shall be driven by their own electric
driven motor.
b) During testing also the power absorbed by the
motor shall be measured.
c) Each required set of observations should at
least have observations of four duty points of
each pump. These 4 points are:
• Rated capacity;
• Maximum allowable load capacity;
• Minimum allowable load capacity;
• Zero capacity.
d) In the event that pumps have to operate in
duty-points where the available NPSH
is less than 3 m w c more than the required
NPSH, the required NPSH curve shall
be tested in several extra duty-points.
Archimedean screw pumps will not normally be
July 2012 Page 29