Flowserve VTP Wet Pit - Manual (Page 36)

VERTICAL TURBINE PUMPS (VTPS) CENTRIFUGAL PUMPS ENGLISH 71569224 – 10-13
Page 36 of 76 flowserve.com
Examples of typical pre-lube methods used in the industry are as follows.
Example (a)
TANK
PIPING MUST BE
MINIMUM LENGTH AS
GATE VALVE SHOULD
MAX. DISCHARGE
1" MIN PIPE
PRESSURE
Pre-lubrication recommended tank volume for pumps started at rated RPM’s for all cases of pre-lubrication
methods suggested in this section
Depth to water level
(at the time of starting the
pump) m (ft)
Pre-Lubrication tank
size.m 3 (US gal)
More than Upto
0 9 (30) 0
9 (30) 30 (100) 0.19 (50)
30 (100) 60 (200) 0.38 (100)
60 (200) 150 (500) 0.75 (200)
Example (b)
STARTUP
LEVEL
MAX
LEVEL
GATE VALVE SHOULD WITHSTAND
MAX. DISCHARGE PRESSURE
PIPING MUST BE KEPT TO
MINIMUM LENGTH AS POSSIBLE
DRAIN
PLUG
25 mm (1in.) MIN
PIPE LINE
LEVEL
GAUGE
LUBRICATION
TANK
VENT