UNIREX Pump - Manual (Page 31)

MARK 3 USER INSTRUCTIONS ENGLISH 71569102 08-06
Page 31 of 68 flowserve.com
4.6.6.4 Piping connection - bearing housing
cooling system
Make connections as shown below. Liquid at less
than 32 °C (90 °F) should be supplied at a regulated
flow rate of at least 0.06 l/s (1 US gpm).
Figure 4-25
4.6.6.5 Piping connection - support leg cooling
for centerline mounting option
If the casing is centerline mounted, and the process
temperature is over 178 °C (350 °F), then the casing
support legs may need to be cooled. Cool water - less
than 32 °C (90 °F) - should be run through the legs at a
flow rate of at least 0.06 l/s (1 US gpm) as shown below.
Figure 4-26
4.6.6.6 Piping connection - heating/cooling fluid
for jacketed cover/casing
The piping connections for jacketed covers and
casings are shown below. The flow rate of the
cooling water - less than 32 °C (90 °F) - should be at
least 0.13 l/s (2 US gpm).
Figure 4-27
Figure 4-28
Notes:
1. When circulating steam, use top hole for inlet. Both bottom
holes must be plumbed together for outlet, to ensure draining
both sides of jacket.
2. When circulating liquid use both bottom holes as inlets. Use top
hole as outlet.
4.6.6.7 Piping connection - Oil mist lubrication
system
The piping connections for an oil mist lubrication
system are shown below.
Figure 4-29
Figure 4-30
4.7 Electrical connections
Electrical connections must be made by
a qualified Electrician in accordance with relevant
local national and international regulations.
It is important to be aware of the EUROPEAN
DIRECTIVE on potentially explosive areas where
compliance with IEC60079-14 is an additional
requirement for making electrical connections.
It is important to be aware of the EUROPEAN
DIRECTIVE on electromagnetic compatibility when
wiring up and installing equipment on site.
Attention must be paid to ensure that the techniques
used during wiring/installation do not increase
electromagnetic emissions or decrease the
electromagnetic immunity of the equipment, wiring or
any connected devices. If in any doubt contact
Flowserve for advice.