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D05 PRESSURE REGULATING VALVES
TROUBLESHOOTING
Table 2 provides a troubleshooting guide for the D05 Pressure Regulating Valves.
Table 2. Troubleshooting D05 Pressure Regulating Valves.
D05 Parts and Accessories
Order Number
Description
Replacement Parts
203223
Bonnet Assembly for 1/2 and 3/4 in. Valves.
203224
Bonnet Assembly for 1 and 1-1/4 in. Valves.
272840
Gasket for 1/2 in. D05/DS05 (quantity 24).
272841
Gasket or 3/4 in. D05/DS05 (quantity 24).
272842
Gasket for 1 in. D05/DS05 (quantity 24).
272843
Gasket for 1-1/4 in. D05/DS05 (quantity 24).
K05A1009
Replacement Cartridge, Screen and O-ring for 1/2 and 3/4 in. Valves.
K05A1017
Replacement Cartridge, Screen and O-ring for 1 and 1-1/4 in. Valves.
K05B1007
Replacement Screen and O-ring for 1/2 and 3/4 in. Valves.
K05B1015
Replacement Screen and O-ring for 1 and 1-1/4 in. Valves.
Union Kits
K06U1069
Union Kit — 1/2 in., includes nut, female NPT threaded tailpiece and gasket.
K06U1077
Union Kit — 3/4 in., includes nut, female NPT threaded tailpiece and gasket.
K06U1085
Union Kit — 1 in., includes nut, female NPT threaded tailpiece and gasket.
K06U1135
Union Kit — 1-1/4 in. for D05/D505, includes nut, female NPT threaded tailpiece and gasket.
K06U1093
Union Kit — 1/2 in., includes nut, sweat tailpiece and gasket.
K06U1101
Union Kit — 3/4 in., includes nut, sweat tailpiece and gasket.
K06U1119
Union Kit — 1 in., includes nut, sweat tailpiece and gasket.
K06U1143
Union Kit — 1-1/4 in. for D05/D505, includes nut, sweat tailpiece and gasket.
Accessories
202868
Filter Washer, 3/4 in., for use with U06P1045 Plastic Stand-in Pipe.
202869
Filter Washer, 1 in., for use with U06P1052 Plastic Stand-in Pipe.
U06P1045
Plastic Stand-in Pipe (spacer) for use with D05 Double-union Pressure Regulating Valves, 3/4 in.
U06P1052
Plastic Stand-in Pipe (spacer) for use with D05 Double-union Pressure Regulating Valves, 1 in.
Pressure Gauges
M39A1032
Pressure Gauge with Bottom Inlet; 0 to 160 psi.
MT194A1006
Water Pressure Test and Recording Gauge with Hose Bib Connection; 0 to 300 psi.
Problem
Solution
Whistling noise.
•
Slightly increase or decrease the outlet pressure until the noise disappears.
Will not hold pressure.
•
Clean the filter cartridge as shown on page 2.
•
Open the guage tap and blow out any dirt (D05G only).
Chatters.
•
Replace the screen and O-rings.
•
Replace the cartridge as shown on page 2.
Freezes up.
•
Replace bonnet or cartridge if damaged.
•
To avoid future freeze-up:
— Temporarily (slightly) open a downstream faucet if the D05 is going to be
exposed to temperatures below 32
°
F (0
°
C). The slight water flow will
eliminate freeze-up.
— Move the D05 to a location with an ambient temperature above 32
°
F
(0
°
C) if it is currently exposed to prolonged temperatures below 32
°
F
(0
°
C).
Pressure gauge measures a lower
pressure under flow conditions than
was originally set during static
conditions.
•
D05 is functioning properly. No action is necessary. The pressure decrease
is characteristic of all direct acting pressure regulating valves and is referred
to as fall-off.