The following tables detail the recommended minimum valve servicing dimensions.
A
B
C
FLOW
FLOW
FLOW
D
FLOW
Valve Servicing Dimensions
IOM-A-ACV-981_681 2115
EDP# 1917096
© 2021 Watts 3
Commissioning the Pump Control Valve
STEP 1
Pre-set pilots as noted:
Pressure Reducing
– Adjust OUT, counterclockwise, backing pressure off the spring, preventing possible over-pressuring of the system.
Opening and Closing Speed
– Turn the adjustment screws on the Closing Speed and Opening Speed Controls, if the main valve is so
equipped, OUT, counterclockwise, 1½ to 2½ turns from full closed position.
3-Way Solenoid
– Confirm that the manual operator is turn counter clockwise to a full OUT position (See Figure 1).
STEP 2
Loosen a tube fitting or cover plug at the main valve to allow air to
vent during start-up.
Step 3
Energize the solenoid to check actuation and to confirm connec-
tion to power source.
STEP 4
De-energize the solenoid prior to initial pump start.
STEP 5
Energize the solenoid at pump start to open the main valve,
checking that the main valve opens. Air is vented through the
loosened fitting. Tighten the fitting when liquid begins to vent.
Globe
Angle
Size (in)
1
1/4
1
1/2
2
21/2
3
4
6
8
10
12
14
16
20
24
A (in)
16
16
20
22
22
24
32
34
38
44
48
52
56
56
B (in)
10
10
12
14
14
16
24
26
28
30
34
40
48
48
Size (in)
1
1/4
1
1/2
2
2
1/2
3
4
6
8
10
12
14
16
C (in)
16
16
20
22
22
24
32
34
38
44
48
52
D (in)
10
10
12
14
14
16
24
26
28
30
34
40
Clockwise for MANUAL
Operation
Figure 1
3-Way Solenoid
