The following tables detail the recommended minimum valve servicing dimensions.
A
B
C
FLOW
FLOW
FLOW
D
FLOW
Valve Servicing Dimensions
IOM-A-ACV-980-16-19_680-16-19 2115
EDP# 1917102
© 2021 Watts 3
Commissioning the Pump Control Valve
STEP 1
NOTE:
System needs to be filled, pressurized, and ready for flow. Due to an internal system check feature, Automatic Control Valve will
not flow until pump starts.
Pre-set pilots as noted:
Opening and Closing Speed
– Prior to pump start, actuate manual operator on solenoid to enable diaphragm assembly to stroke
open and closed. Observing the limit switch stem indicator, monitor rate of opening and closing speed. Adjust accordingly per applica-
tion requirements.
NOTE
: Cycle diaphragm multiple times to confirm rate of movement and remove excess air trapped within the cover chambers.
To increase the rate of opening/closing, turn the adjustment
screws on the speed controls OUT, counterclockwise (See Figure
1B). In decrease the rate of opening/closing, turn the adjustment
screws on the speed controls IN, clockwise (See Figure 1A).
STEP 2
Prior to pump start, energize the solenoid to confirm connection
to power source.
STEP 3
De-energize the solenoid prior to initial pump start.
STEP 4
Energize the solenoid at pump start to open the main valve,
checking that the main valve opens.
Globe
Angle
Size (in)
2
21/2
3
4
6
8
10
12
14
16
20
24
A (in)
20
22
22
24
32
34
38
44
48
52
56
56
B (in)
20
22
22
25
36
38
40
44
48
50
50
50
Size (in)
2
2
1/2
3
4
6
8
10
12
14
16
C (in)
20
22
22
24
32
34
38
44
48
52
D (in)
20
22
22
25
36
38
40
44
48
50
Figure 1
Flow Control
Counterclockwise to INCREASE
the rate of opening
Clockwise to DECREASE
rate of opening
1A
1B
