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D05T Compact Design Pressure
Regulating Valves
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INSTALLATION INSTRUCTIONS |
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APPLICATION |
Air: 158°F (70°C). |
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Fluid Temperature (Maximum): |
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The Honeywell Braukmann D05T Pressure Regulating |
Water: 180°F (82°C). |
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Valve is a high quality pressure regulating valve that |
Ambient Temperature: 33°F to 140°F (1°C to 60°C) |
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maintains a constant outlet pressure over a wide range of |
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inlet supply pressures. It is ideally suited for new |
Pipe Sizes: 3/4 in. and 1 in. available. |
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residential and light commercial construction, drip |
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irrigation, and applications requiring highly sensitive and |
Connections: Can be configured as female thread-by- |
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accurate regulation. |
thread, singleor double-union, NPT threaded or |
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The wide inlet pressure range of the D05T gives flexibility |
sweat. |
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without compromising reduced outlet pressure accuracy |
Strainer Screen Size: 0.032 in. (0.8 mm) |
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or capacity. The superior balanced single seat design |
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maintains a constant outlet pressure over a wide range of |
Gauge Tap: 1/4 in. NPT (available on all models). |
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inlet pressures. The non-corroding unitized cartridge |
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insert contains all the working parts and is easily |
Approvals: |
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replaceable. |
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ASSE (Std. 1003) Certified. |
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The D05T is used for water or air regulation. It is not |
IAPMO, CSA, and City of L.A. Listed. |
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suitable for steam. |
Dimensions: See Fig. 1. |
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SPECIFICATIONS |
Water Capacities (See Table 1): |
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The suitability of a given regulator size is dependent on |
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Model: D05T Pressure Regulating Valves |
the pressure requirements of each installation. To |
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determine the pressure regulator valve size required |
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for a specific installation, determine the following: |
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Construction Materials: |
1. Pressure differential between inlet and outlet pres- |
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Body: Bronze. |
sure in pounds per square inch (psi), |
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Internal Parts: Stainless steel and engineered plastic. |
2. Capacity in gallons per minute (gpm), and |
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Regulator Mechanism: Fabric-reinforced diaphragm. |
3. Allowable reduced pressure falloff in psi. |
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Inlet Pressure: 400 psi maximum. |
Given these variables, use Table 1 to determine the |
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Reduced Pressure Range: 15 to 90 psi. |
proper size pressure regulator valve for your application. |
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Outlet Pressure: Factory set at 60 psi. |
Example:An installation has 135 psi inlet pressure, 60 psi |
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outlet pressure (75 psi pressure differential). If |
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Differential: 14 psi minimum (inlet to outlet). |
12 gpm capacity is required with only 10 psi fall- |
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off allowable, a 1/2 in. D05T is required. |
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Place Bar Code Here
62-3028EF-01
D05T COMPACT DESIGN PRESSURE REGULATING VALVES
Table 1. Water Capacities.
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Pressure Differential Between Inlet and Outlet |
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25 psi |
50 psi |
75 psi |
100 psi or more |
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Pressure |
Reduced |
Flow |
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Flow |
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Flow |
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Flow |
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Regulator |
Pressure |
Capacity |
Velocity |
Capacity |
Velocity |
Capacity |
Velocity |
Capacity |
Velocity |
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Valve |
Falloff |
(U.S. |
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(U.S. |
(U.S. |
(U.S. |
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Size |
(psi) |
gpm) |
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(ft/sec)a |
gpm) |
(ft/sec)a |
gpm) |
(ft/sec)a |
gpm) |
(ft/sec)a |
3/4 inch |
6 |
9.0 |
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5.4 |
10.0 |
6.0 |
11.0 |
6.5 |
12.0 |
7.1 |
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10 |
15.0 |
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8.9 |
16.0 |
9.5 |
17.0 |
10.0 |
18.0 |
10.7 |
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15 |
20.0 |
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11.9 |
22.0 |
13.7 |
23.0 |
13.7 |
24.0 |
14.3 |
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20 |
23.0 |
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13.9 |
26.0 |
17.6 |
27.0 |
16.7 |
28.0 |
17.3 |
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1 inch |
6 |
11.5 |
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4.2 |
13.0 |
4.7 |
14.5 |
5.3 |
16.0 |
5.8 |
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10 |
20.0 |
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7.2 |
21.5 |
7.8 |
23.0 |
8.3 |
24.5 |
8.9 |
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15 |
28.0 |
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10.7 |
30.0 |
10.9 |
33.0 |
12.0 |
35.0 |
12.7 |
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20 |
32.0 |
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14.0 |
37.0 |
13.5 |
40.0 |
15.5 |
41.0 |
15.0 |
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aVelocity in feet per second is based on schedule 40 pipe size. recommended pressure falloff for general use is approximately 15 psi (104 kPa). Recommended velocities for the flow of water: Residential and general use, 5 to 10 feet per second; industrial use, 7 to 15 feet per second; boiler feed, 7 to 15 feet per second.
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 operation as provided in these instructions.
Procedure
1.Flush the system clear of sediment or debris.
2.Close the supply valve and downstream isolating valve (if used).
3.Install the D05T with the arrow on the body pointing in the direction of water flow. (The D05T can be mounted in any position.)
The D05T can be installed directly onto the pipe by using the female NPT threads on each end. If space limitations restrict turning the D05T, install singleor double-unions.
NOTE: Heat from soldering can damage internal parts of the D05T. Always remove the tailpiece(s) from the D05T during soldering, or disassemble the D05T prior to heating the casting.
4. Open the supply valve.
Changing the Outlet Pressure (See Fig. 1)
The D05T is factory set to 60 psi. To change the outlet pressure, turn the adjusting bolt counterclockwise
to reduce pressure or clockwise to increase pressure.
To adjust the outlet pressure to a desired setting:
1.Close the supply shutoff valve and open a downstream faucet to relieve static pressure in the line.
2.Loosen the locknut by turning counterclockwise
two turns. |
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3. Turn the adjusting bolt counterclockwise |
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eral turns to make sure the setting is below the |
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desired setting. |
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4.Close all downstream valves and/or faucets and slowly open the supply valve until fully open.
5. |
Turn the adjusting bolt clockwise |
to gradually |
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increase the pressure until the gauge indicates the |
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6. |
desired outlet pressure (under no flow condition). |
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Reopen a downstream valve. During flow, there will |
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normally be a pressure falloff of 3 to 15 psi depend- |
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7. |
ing upon the amount of water flow. |
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Tighten the locknut by turning clockwise |
until |
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tight. Do not overtighten. |
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62-3028EF—01 |
2 |
D05T COMPACT DESIGN PRESSURE REGULATING VALVES
600 |
800 |
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400 |
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100 |
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75 |
1000 |
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50 |
125 |
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200 |
150 |
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25 |
175 |
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0 |
1200 |
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0 |
200 |
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PSI HONEYWELLkPa BRAUKMANN
1400
1 LOOSEN LOCKNUT
BY TURNING COUNTERCLOCKWISE 
2TURN ADJUSTING BOLT COUNTERCLOCKWISE 
TO DECREASE OR |
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CLOCKWISE |
TO |
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INCREASE OUTLET PRESSURE |
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3TIGHTEN LOCKNUT BY TURNING CLOCKWISE 
1
150 |
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100 |
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200 |
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test |
250 |
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water |
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50 |
PSI |
300 |
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1THE CLOCKWISE AND COUNTERCLOCKWISE DIRECTIONS ARE DETERMINED BY LOOKING
DIRECTLY AT THE ADJUSTING BOLT |
M32170 |
Fig. 1. Changing outlet pressure.
Replacing the Cartridge (See Fig. 2)
The working parts of the D05T, including diaphragm, valve seat, strainer, and disk are all contained in a replaceable cartridge. To replace the cartridge:
1.Shut off the supply valve and open a downstream faucet to relieve the system pressure.
CAUTION
To prevent injury and/or equipment damage, loosen locknut and turn adjusting screw counterclockwise 
to remove spring tension.
2.Loosen locknut and turn adjusting screw counterclockwise 
to remove spring tension.
3.Remove the bonnet and washer using an adjustable wrench, socket, or box-end wrench.
4.Remove the cartridge using two screwdrivers as levers.
5.Attach new O-rings and screen onto the new cartridge. Make sure O-rings are properly installed above and below the screen.
6.Insert the new cartridge. Do not scratch the sides.
7.Place the washer on top of the cartridge.
NOTE: The inner lip must be pointing up to avoid damaging the diaphragm.
8.Replace the spring, spring cup, and bonnet.
9.Readjust the outlet pressure to the desired setting by using the procedure described in Changing the Outlet Pressure section.
3 |
62-3028EF—01 |
D05T COMPACT DESIGN PRESSURE REGULATING VALVES
1 LOOSEN LOCKNUT AND TURN ADJUSTING SCREW COUNTER CLOCKWISE 
TO REMOVE SPRING TENSION
2 REMOVE BONNET USING AN ADJUSTABLE WRENCH, SOCKET, OR BOX END WRENCH
3REMOVE CARTRIDGE USING TWO SCREWDRIVERS AS LEVERS
4ENSURE O-RINGS AND WASHER ARE PROPERLY INSTALLED
WASHER (LIP UP)
O-RINGS
M761A
Fig. 2. Replacing D05T cartridge.
62-3028EF—01 |
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D05T COMPACT DESIGN PRESSURE REGULATING VALVES
ADJUSTING SCREW
LOCKING NUT
BONNET
SPRING CUP
SPRING
WASHER
CARTRIDGE
O-RING
SCREEN
O-RING
GASKET
TAILPIECE
NUT
NUT
TAILPIECE
BODY |
GASKET |
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M32171
Fig. 3. D05T exploded view.
5 |
62-3028EF—01 |
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