CLA-VAL
1701 Placentia Ave
•
Costa Mesa CA 92627
•
Phone: 949-722-4800
•
Fax: 949-548-5441
•
E-mail: [email protected]
•
www.cla-val.com
Copyright Cla-Val 2019
•
Printed in USA
•
Specifications subject to change without notice.
©
Stopping Cycle...
Starting switch opens, solenoid control "A" de-
energizes and shifts, pump continues to run.
High Pressure fluid from the pump is directed
above the diaphragm, applying force to close the
valve.
The valve closes slowly as fluid from the lower
diaphragm chamber is gradually released to
atmosphere through speed control "D" and
solenoid "A". When the valve closes fully, the
limit switch "H" shuts off the pump.
Pump Off...
With pump off, static line pressure is
transmitted through strainer "F", shuttle
valve "C", solenoid control "A", and speed
control "E" to the chamber above the
diaphragm, thus holding the valve closed.
If power failure occurs when valve is open,
the built-in check valve "J" closes
immediately to prevent reverse flow.
Starting Cycle...
Starting switch closes, pump starts, solenoid control
"A" energizes and shifts allowing fluid from upper
diaphragm chamber to drain to atmosphere. High
pressure fluid from pump enters strainer "B" and shifts
shuttle valve "C", which always supplies the highest
pressure from either strainer "B" or "F". High pressure
fluid is transmitted to the lower diaphragm chamber
and opens the valve.The opening speed of the valve is
controlled by speed control "E", which limits the rate
fluid is relieved from above the diaphragm.
Sequence Of Operation
Drain
PT.1
A
D
E H
Enter PT.2
C
B
J
F
Drain
A
E
H
D
Enter
PT.2
PT.1
F
B
C
A
Drain
Enter
C
PT.1
PT.2
E
H
D
F
B
E-60-73 US Units (R-02/2019)
Optional Electronic Control
The Cla-Val PC-22D provides control of the pump and
pump control valve, preventing surges in the system
when the pump starts or stops. It consists of a pre-wired
electrical control panel employing a programmable
valve controller to sequence the pump and pump
control valve during all modes of operation. Provides
added protection to the pumping system from damage
caused by mechanical, hydraulic or power failure.
The PC-22D offers all the control features found in the
recommended wiring diagrams for Cla-Val pump control
valves, plus alarms, automatic shutdown and adjustable
timers.
Valve Sizing
Sizing Model 60-73 Booster Pump Control
Valves is similar to sizing non-modulating type
valves. Simply select the smallest size valve that
will handle the pump output at an acceptable
head loss for the application.
Do not oversize.
Oversizing a Booster Pump
Control Valve will nullify its ability to prevent
surges caused by the starting and/or stopping
of the pump. Maximum flow values are given in
the selection table above. For further
information on flow characteristics for this valve,
reference the 100-30 (60-73) technical data
sheet.
Example:
A booster pump station with a rated output of
1000 GPM and 4 psi is an acceptable head loss
for the application.
Drain Provisions
Each time the valve opens or closes, water is
discharged from the solenoid exhaust port, the
amount varying with the valve size. Provisions
should be made for the disposal of this water.
Exhaust tube must be free of any back pressure.
Provide an air gap between the solenoid
exhaust tube and drain facility.
Model 60-73 Flow Chart
Uses Basic Valve Model 100-30
12
10
20
30 40
60 80 100
200
500
1000
2000
5000
10,000
20,000 50,000
1
2
3
4
6
8
10
20
30
40
60
80
100
5
3
Angle Valve Sizes (Inches)
Globe Valve Sizes (Inches)
6
8
10
24
6
8
16
20
P
re
ss
u
re
D
ro
p
—
p
si
18
14
4
4
Flow Rate
gpm (water)
Liquid Volume Displaced from Diaphragm Chamber When Valve Opens or Closes
Sizes (Inches)
2
1
⁄
2
"
3"
4"
6"
8"
60-73
.043gal
.080gal
.169gal
.531gal
1.26gal