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Water Capacities (See Table 1)
The suitability of a given regulator size is dependent on the
pressure requirements of each installation. To determine the
pressure regulator valve size required for a specific installation,
calculate the following:
1. Pressure differential between inlet and outlet pressure in
pounds per square inch (psi).
2. Capacity in gallons per minute (gpm), and
3. Allowable reduced pressure falloff in psi.
Reduced
Pressure
Capacity
Size
Fall off in
in US
(in.)
psi
1-1/2
6
10
15
20
2
6
10
15
20
INSTALLATION
When Installing This Product...
1. Read these instructions carefully. Failure to follow them
could damage the product or cause a hazardous
condition.
2. Check the ratings given in these instructions and on the
product to make sure the product is suitable for you
application.
3. Installer must be a trained, experienced service
technician.
4. After installation is complete, check out the product as
provided in these instructions.
Procedure
1. Flush the system clear of sediment and debris.
2. Close the supply valve and downstream isolating valve
(if existing).
3. Install the DS06D,G with the arrow pointing in the
direction of water flow (any mounting orientation is
acceptable). The DS06D,G can be installed directly onto
a pipe using the female NPT threads on each end or by
using single or double unions, if required. (One union is
provided.)
Table 1. Water Capacities.
Pressure Differential Between Inlet and Outlet (psi)—No Flow
25
Flow
Flow
Capacity
Velocity
in US
gpm
in ft/sec
gpm
13
2.0
36
5.7
65
10.2
88
13.9
15
1.4
41
3.9
75
7.2
104
9.9
DS06D,G DIAL SET PRESSURE REGULATING VALVE
Given these variables, use Table 1 to determine the proper
size pressure regulator valve for your application.
Example: An installation has 135 psi inlet pressure, 60 psi
outlet pressure (75 psi pressure differential). If 30 gpm capacity
is required with only 10 psi falloff allowable, a 1-1/2 in.
DS06D,G is required. This pressure regulator valve allows a
flow capacity up to 46 gpm with a 10 psi falloff at a no flow
pressure differential of 75 psi.
50
Flow
Capacity
Velocity
in US
in ft/sec
gpm
15
2.4
43
6.8
76
12.0
102
16.1
114
18
1.7
49
4.7
88
8.4
101
124
11.9
141
CAUTION
Heat from soldering can damage internal parts.
Always remove tailpiece or solder adapter prior to
soldering.
4. Open the supply valve slowly and open the downstream
valve, if provided.
5. Check for leaks at connections and correct, if necessary.
Adjusting Outlet Pressure (See Fig. 2)
The DS06D,G is factory set at 60 psi (no flow). Follow this
procedure if adjustment is required:
1. Remove dust cap and loosen locking screw one turn
counterclockwise. Do not remove the locking screw.
2. Turn adjusting knob clockwise to increase pressure and
counterclockwise to decrease pressure. When
decreasing pressure, a slight downstream flow is
necessary to relieve pressure. Turn until dial scale
indicates desired pressure (no flow set pressure).
3. Tighten locking screw and replace dust cap.
3
75
Flow
Capacity
Velocity
in US
in ft/sec
gpm
17
2.7
46
7.2
84
13.2
18.0
132
22
2.1
57
5.4
9.7
114
13.5
163
100
Velocity
in ft/sec
21
3.3
54
8.5
96
15.1
20.8
27
2.6
66
6.3
10.9
15.6
62-3052—1
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