The following tables detail the recommended minimum valve servicing dimensions.
A
B
C
FLOW
FLOW
FLOW
D
FLOW
Valve Servicing Dimensions
IOM-A-ACV-986_686 2115
EDP# 1917094
© 2021 Watts 3
Commissioning the Pump Control Valve
NOTE:
System needs to be filled, pressurized, and ready for flow
STEP 1
Pre-set pilots as noted:
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 Valve
– Turn manual operator stem counter-clockwise to full out position (See Figure 1).
STEP 2
Energize the solenoid to check actuation and to confirm connec-
tion to power source.
STEP 3
De-energize the solenoid prior to initial pump start.
STEP 4
Loosen a tube fitting or cover plug at the main valve to allow air to
vent during start-up.
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
