PVML USER INSTRUCTIONS ENGLISH 00079591 – 01/05
®
4 INSTALLATION
Equipment operated in hazardous locations
must comply with the relevant explosion protection
regulations. See section 1.6.4,
Products used in
potentially explosive atmospheres.
4.1 Location
The pump should be located to allow room for access,
ventilation, maintenance and inspection with ample
headroom for lifting and should be as close as
practicable to the supply of liquid to be pumped.
Refer to the general arrangement drawing for the
pump set.
4.2 Part assemblies
Seal systems for dual seal arrangements may be
supplied loose on PVML pumps. It is the
responsibility of the installer to ensure that the seal
system is properly installed to the pump.
4.3 Foundation
There are many methods of installing
pump units to their foundations. The correct method
depends on the size of the pump unit, its location and
noise vibration limitations. Non-compliance with the
provision of correct foundation and installation may
lead to failure of the pump and, as such, would be
outside the terms of the warranty. Ensure the
following are met.
The levelling plate or base plate should be mounted
onto a firm foundation, either an appropriate thickness
of quality concrete or sturdy steel framework. (It
should NOT be distorted or pulled down onto the
surface of the foundation, but should be supported to
maintain the original alignment.) Concrete is the most
suitable material for the base.
The base should contain recesses for the grouting of
the foundation bolts. Figure 3 shows a number of
variations on the design of the foundation bolts.
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Make these recesses in the base in
accordance with the above figure, referring to the
dimensional drawing of the pump unit.
If a concrete base is used, observe the following
points:
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do not place the pump unit on the base until it
is
completely
set;
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fill the recesses with water at least 24 hours
before grouting the foundation bolts. Wetting
the recesses will strengthen the bond between
the mortar of the foundation bolts and the base;
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remove the water from the recesses when the
foundation bolts are being grouted;
4.3.1 Positioning the foundation bolts
Take the following points into account when
positioning the pump unit:
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the foundation bolts should be suspended
freely in the recesses of the base;
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the level of the centre line of the suction and
discharge nozzles should correspond with the
centre line of the pipes to be connected;
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the position of the suction and discharge
nozzles in the x and z directions (see Figure 4)
and
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the vertical distance between the base and the
levelling plate (40 mm) before filling with
mortar.
4.4 Grouting
For grouting the same steps are to be taken for a
pump set with (extended) levelling plate or a base
plate, with the distinction that a PVML pump will be
mounted on the levelling plate after grouting of the
levelling plate and a PVML pump on a base plate
will be grouted as unit.
Figure: foundation bolts
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