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DS06D,G DIAL SET PRESSURE REGULATING VALVE
Cleaning Strainer Screen
To clean the strainer screen:
1. Close the supply valve and relieve the downstream
pressure.
2. Remove the strainer cup (See Fig. 5).
3. Remove the strainer and the strainer support. Do not
remove the U-seal.
4. Clean the strainer cup and the strainer.
5. Replace the strainer on the strainer support. Insert the
assembly into the valve.
6. Assemble the strainer cup O-ring onto the strainer cup
and insert the assembly into the body of the valve.
Tighten securely using the service tool. Do not over
torque.
Recalibrating DS06D,G
If the adjusting knob and dial are accidentally removed, the dial
must be recalibrated as follows:
1. Follow the procedure in Adjusting the Outlet Pressure
section. Set the pressure on the gauge at 60 psi (or
another convenient pressure).
2. Reassemble the dial ring onto the bonnet with the
pressure on the ring matching the pressure gauge.
3. Assemble the locking screw and tighten. Replace the
dust cap.
TROUBLESHOOTING
Table 2 is a troubleshooting guide for the DS06D,G Pressure
Regulating Valves.
Problem
Will not hold pressure or pressure
gradually rises.
Frozen.
Pressure gauge measures a lower
pressure under flow conditions than set
pressure at no flow.
Low capacity, low outlet pressure.
62-3052—1
Table 2. Troubleshooting DS06D,G Pressure Regulating Valves.
Thermal expansion.
Debris on valve seat.
Damaged valve seat.
Valve exposed to freezing temperatures
below 32° F (0° C).
This is normal and characteristic of
direct-acting pressure-reducing valves.
Screen blocked with debris.
Valve undersized.
OPERATION
The Honeywell DS06D,G Dial Set is a balanced, direct acting
pressure-regulating valve. It provides constant downstream
pressure regardless of varying inlet pressures and downstream
flow demands.
The spring force holds the valve in the open position until
downstream pressure, sensed by a port, is sufficient to press
on the underside of the diaphragm and close the valve. As
downstream pressure drops due to demand, the force on the
diaphragm is reduced and the valve opens. Adjustment is
made by manually turning the adjustment knob clockwise to
increase the spring force and require a higher downstream
pressure to close the valve. Similarly, reducing the spring force
lowers the outlet set pressure. A factory-calibrated dial is built
into the adjustment mechanism to allow outlet pressure (under
no flow condition) to be set without a gauge. A lock screw
maintains the setting. A black plastic cover is provided for
additional protection.
When the outlet pressure is set, the DS06D,G automatically
regulates to maintain the downstream pressure.
Cause
6
Solution
Install a thermal expansion tank to limit
pressure rise.
Clean valve.
Replace cartridge.
Inspect and replace any damaged
components. Move valve to a location
that remains above freezing.
No action is necessary.
Clean screen.
Check capacity versus requirements
and increase valve size.
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