WSP™
DATA SHEET
WSP™ SELF-PRIMER PUMPS
WSP-D300_6
Rev. 3
01/09/20
© 2019 The Factory
46
Figure 12
F. DISCHARGE LINES
1. Siphoning
Avoid ending the discharge line lower than the liquid being pumped
unless a siphon breaker is in use. Without a siphon breaker installed,
siphoning may damage the pump.
2. Valves
When using a discharge line throttling valve, it
must
be the same size
as the largest pipe to reduce friction loss. Do
not
install a throttling
value in the suction line.
If using high discharge heads, Weir Specialty Pumps suggests a
throttling valve coupled with a system check valve in the discharge
line. When the pump is stopped, this helps ensure the pump is safe
from reverse rotation and extreme shock pressure.
IN HIGH DISCHARGE HEAD APPLICATIONS THE DISCHARGE THROTTLING VALVE
MUST BE GRADUALLY CLOSED BEFORE THE PUMP IS STOPPED.
Содержание WSP-6
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