Filling The Pump With Lubricant; Fitting The Inspection Window; Connecting The Pipes; Installing The Piping - VERDER VERDERFLEX Dura 55 Series Operating Manual

6.7 Filling the pump with lubricant

Safety data sheets for both Verderlube and Verdersil are
available from the manufacturer for compatibility check.
1. Provide a suitable container to collect spilt lubricant.
2. Ensure compatibility of lubricant with the pumped liquid.
3. Fill the pump casing with lubricant to the lowest bolt hole of
the inspection window (gFigure 16).

Figure 16. - Filling the pump with lubricant

6.7.1 Fitting the inspection window

1. Fit M6 cap head bolts with washers into the window. The
window is threaded to make bolts captive and counter
bored on the back face.
2. Mount the gasket on to the bolts.
3. Mount the window unit, with the bolts and gasket, over the
front cover, aligned as shown in Figure 17.
4. Nip the bolts down in sequence. Ensure that the bolts are
not over-tightened. (g11. Technical specifications)
You can see the gasket pressing against the window as the
bolts clamping force takes effect.

Figure 17. - Fitting the inspection window

Original instructions (en)

6.8 Connecting the pipes

Contamination of pumped media due to impurities in the
pump!
Care should be taken to avoid ingress of contaminants
X
into the pumped media.
Clean all piping parts and fittings prior to assembly.

Ensure that the flange seal do not protrude inwards

occluding the flow path.
Remove flange covers on both the suction and

discharge side prior to installation.

6.8.1 Installing the piping

1. Check all fasteners are tightened (g11. Technical
specifications).
2. Ensure that the 1/4 turn flange is correctly indexed.
3. Remove the transport and sealing covers from the pump.
4. Before connecting any piping to the pump; Ensure that
the hose is properly secured by running the pump dry for
10–20 revolutions in both the directions.
5. Run the pipes in a continuous upward or downward slope
to avoid air pockets.
6. Connect the piping.
7. Make sure that the nozzle loadings on flanges are not
exceeded.

Figure 18. - Nozzle loadings on flanges

8. Consider the maximum nozzle loadings on flanges in the
following table:
Pump Type
Dura 55/55HF

Table 5. - Maximum nozzle loadings on flanges

Version 01
© Verder Liquids B.V
Dura 55 series - Operating manual
Note
Maximum Nozzle Loadings (N)
F1 F2
1500 N 1000 N
F3
1000 N
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