STEP 1
Pre-set pilots as noted:
Low Pressure Control
– Adjust OUT, counterclockwise, allowing the valve to be brought up to the desired pressure in a controlled
manner.
Relief Control
– Turn the adjustment screw OUT, clockwise, backing pressure off the spring, allowing valve to be brought up to the
desired high pressure in a controlled manner.
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, 11/2 to 21/2 turns from full closed position.
STEP 2
To ensure proper operation, any trapped air will need to be bled off
the valve cover during startup. If your ACV includes a bleed valve,
use a flat head screwdriver to slowly open the valve (Figure 1).
If your valve does not include a bleed valve, bleed air by loosen-
ing a fitting on the valve or a plug, at the highest point of the valve
assembly.
STEP 3
Pressure the line, by opening the upstream isolation valve slowly
Air is vented through the air bleed valve or loosened fitting.
Tighten the fitting when liquid begins to vent (See Figure 1).
Repeat the process until no air is trapped in the system.
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
Counterclockwise to OPEN
bleed valve
Setting the Pressure Controls
The following tables detail the recommended minimum valve servicing dimensions.
A
B
C
FLOW
FLOW
FLOW
D
FLOW
Valve Servicing Dimensions
Figure 1
Position Indicator
IOM-ACV-116-52_6116-52 2115
EDP# 1917053
© 2021 Watts 3
