172-65116M-02 (CP-N) 16 Jun 2011
11
Symbol Part
name Operation Position
Application
V
1
Bypass valve for V
3
Close
V
2
Inlet valve for V
3
Open
V
3
Press. Reg. valve
Set
Adjusted in accordance with
recovery conditions. Maintains
the back pressure of steam
trap below the predetermined
value.
V
4
Outlet valve for V
3
Open
V
5
Blow
valve
Needed
Open
↔
Close
Serves to blow out condensate
when the pump stops.
V
6
Inlet valve for MB
1
O
V
7
Pump inlet valve
Needed
Open
↔
Close
Full opened before starting
the pump. Closed when the
pump stops.
V
8
Cold water inlet
valve
Needed Open
↔
Close
Full opened before starting
the pump. Closed when the
pump stops.
V
9
Delivery pressure
regulating valve
Set
Maintains constant pump
delivery pressure.
V
10
Pump outlet valve
Needed
Open
↔
Close
Full opened after pump start up.
Closed after the pump stops.
V
11
Bypass valve for
flowmeter
Close
V
12
Flowmeter inlet valve
Open
V
13
Flowmeter outlet
valve
Open
V
14
Inlet and outlet
valves for MB
3
Open
V
15
Bypass valve for
MB
3
Close
V
16
Bypass valve for
MB
m
Close
V
m
Inlet and outlet
valves for MB
m
Open
V
n
Initial blow valve
Close
Serves to flush pipes at the
early stage of test run.
V
o
Valve for condensate
feeding
Open
V
p
Feed water line
valve
Open
Attached to boiler
V
q
Boiler inlet line
Open
Attached to boiler
A·B Pipe
supports
Fix the piping to protect the
boiler from weight and
vibration of pipes.
H Condensate
header
FM Flowmeter
Integrating flowmeter.
Separated display type.
FS
Flow sight
(Sight glass)
For checking cold water flow.
MB
1
Motor valve for start-
up blow
Automatic
Discharges cold condensate, co-
operating with a thermostat.
MB
2
Motor valve for air
venting
Automatic
Serves to vent air in pump
and pipes.
MB
3
Automatic bypass
valve
Automatic
Opens when the boiler water
level reaches upper limit.
MB
m
Automatic
condensate feed
valve
Automatic
Controls condensate feeding
into the boiler in accordance
with the boiler water level.
Operates on ON-OFF principle.
Table continued on next page
