Page
56
P/N
06
‐
791
‐
4
(Rev.
4)
704
SW
10
th
Street,
P.O.
Box
610,
Blue
Springs,
Missouri
64013
‐
0610
U.S.A.
●
Phone:
(816)
229
‐
3405
●
www.fike.com
Pressure
Maintenance
(Jockey)
Pump
Connection
When
a
jockey
pump
is
utilized,
a
pressure
sensing
line
connection
to
the
pump
controller
is
required
for
pump
activation.
This
piping
connection
enables
the
pump
controller
to
sense
a
pressure
drop
in
the
piping
network
due
to
the
opening
of
a
single
nozzle
triggering
activation
of
the
fire
pump.
There
are
two
options
for
connecting
a
jockey
pump
to
the
DuraQuench
pump
skid
as
described
below.
Option
1:
If
initially
ordered
as
part
of
the
pump
skid,
the
jockey
pump
and
required
isolation
valves
are
factory
‐
installed
onto
the
pump
skid
prior
to
shipment.
See
Figure
49.
The
jockey
pump
controller
(item
22),
pressure
sensing
line
connection
(item
23)
and
electrical
connection
between
the
jockey
pump
motor
and
the
jockey
pump
controller
(item
24)
must
be
field
installed.
A
pipe
flange
(item
20)
is
factory
installed
on
the
pump
skid
to
facilitate
easy
connection
of
the
field
piping
to
the
pump
skid.
Figure
49:
Wet
Pipe
System
with
Pressure
Maintenance
Pump
mounted
on
the
Skid
1.
Suction
isolation
valve
(monitored)
13.
Discharge
pressure
gauge
2.
Suction
flange
14.
Discharge
isolation
valve
(monitored)
3.
Suction
basket
strainer
15.
Discharge
flange
4.
Suction
pressure
gauge
16.
Check
Valve
5.
Circulation
relief
valve
(opens
at
275
psi/19
bar)
17.
Jockey
pump
isolation
valve
6.
Centrifugal
pump
and
motor
18.
Jockey
pump
and
motor
7.
Test
header
isolation
valve
(monitored)
19.
Check
valve
8.
Test
header
flange
20.
Jockey
pump
line
discharge
flange
9.
Pressure
relief
valve
(opens
at
245
psi/16.9
bar)
21.
Jockey
pump
isolation
valve
10.
Fire
pump
controller
22.
Jockey
pump
controller
11.
Pump
controller
to
motor
electrical
connection
23.
Jockey
pump
pressure
sensing
line
12.
Fire
pump
pressure
sensing
line
24.
Electrical
connection
–
jockey
pump
motor
to
controller
Summary of Contents for DuraQuench
Page 93: ......
