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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:
Pressure differential between inlet and outlet pressure
in pounds per square inch (psi).
Capacity in gallons per minute (gpm), and
Allowable reduced pressure falloff in psi.
Reduced
Size
Pressure Fall
(in.)
off (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 your
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
Flush the system clear of sediment and debris.
Close the supply valve and downstream isolating valve
(if existing).
Install the D06G with the arrow pointing in the direction
of water flow (any mounting orientation is acceptable).
The D06G 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
Capacity
(US gpm)
(ft/sec)
(US gpm)
13
2.0
36
5.7
65
10.2
88
13.9
102
15
1.4
41
3.9
75
7.2
104
9.9
124
D06G 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. D06G 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
Velocity
Capacity
(ft/sec)
(US gpm)
15
2.4
17
43
6.8
46
76
12.0
84
16.1
114
18
1.7
22
49
4.7
57
88
8.4
101
11.9
141
CAUTION
Heat from soldering can damage internal parts.
Always remove tailpiece or solder adapter prior
to soldering.
Open the supply valve slowly and open the
downstream valve, if provided.
Check for leaks at connections and correct, if necessary.
Adjusting Outlet Pressure (See Fig. 2)
The D06G is factory set at 60 psi (no flow). Follow this
procedure if adjustment is required:
Close the supply shutoff and open a downstream faucet
to relieve pressure in the line. Remove the gauge plug
and install a pressure gauge. Close the downstream
faucet and open the supply valve.
Loosen the locking screw one turn counterclockwise.
Do not remove the locking screw.
Turn the adjusting knob clockwise to increase pressure
and counterclockwise to decrease pressure. When
decreasing pressure, a slight downstream flow is
necessary to relieve pressure. Turn the knob until the
pressure gauge indicates the desired pressure (no flow
set pressure).
Tighten the locking screw.
3
75
100
Flow
Velocity
Capacity
(ft/sec)
(US gpm)
2.7
21
7.2
54
13.2
96
18.0
132
2.1
27
5.4
66
9.7
114
13.5
163
Velocity
(ft/sec)
3.3
8.5
15.1
20.8
2.6
6.3
10.9
15.6
62-3051
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