Powers HydroGuard Checkstops User Manual
Refer to charts on page 2 for repair/replacement kits for all four
styles of stop valves.
TYPE 1 1/2” NPT Triple Duty Strainer Checkstop
for Concealed Piping
TYPE 2 1/2” NPT Triple Duty Strainer Checkstop
for Exposed Piping
For shower mixers, concealed and exposed fotoguards
TYPE 3 1/2” NPT Triple Duty Strainer Checkstop Union
Type for Exposed Piping
Obsolete
TYPE 4 OBSOLETE
Used for H Hydroguards and H Fotoguards Prior to 1966
1. Connect fittings to the mixer with the bonnet [7] and stem [8] in
an accessible position (refer to drawing below for orientation).
2. Make sure stop valves are open by turning stem [8] fully
counter-clockwise.
TECHNICAL INSTRUCTIONS
1/2” NPT Check Valves
Combination Strainer-Checkstops
A Watts Industries Co.
DESCRIPTION
INSTALLATION
2
1
Strainer
O-ring
Poppet with
Spring
Washer
3
4
5
6
7
8
O-ring/
Gasket
Body
Bonnet
Stem
1
2
3
4
5
6
7
8
9
10
Bonnet
O-ring
O-ring
Washer
Strainer
Poppet with
Spring
Body
Stem
Union Nut
Union End
1
2
5
Strainer
Assembly
O-Ring
Poppet Assembly
5-7⁄ 8" [14.9 cm]
1/2" NPT Outlet
1/2" NPT
Hot Water Inlet
1/2" NPT
Cold Water Inlet
2"
[51]
410 or 420 Valve
1/2" NPT
Triple Duties
1-5⁄ 8" [41]
Form TI230-1 V3
TI230-1 V3 Page 2
MAINTENANCE
PARTS/REPAIR KITS
KIT COMPONENTS (parts for one pair of stop valves)
Preventative Maintenance
1. To ensure proper operation, the checkstops should be
inspected for worn parts and cleaned every 6 months.
Cleaning Checkstops [1]
1. Close the checkstop by turning the stem [8] fully clockwise
to a solid stop.
2. Remove the bonnet [7] by turning counterclockwise.
3. Pull out screens [1] and clean.
4. Replace the screen [1] and bonnet [7]
5. Open the stop valves by turning the stem [8] fully counterclockwise.
Replace/repair check valve/spring
1. Shut off water supply upstream.
2. Remove the bonnet [7] and the stem [8].
3. Inspect or repair poppet or spring [5]. Replace assembly if
necessary.
4. Replace bonnet and stem.
5. Open stop valves by turning stem fully counterclockwise.
6. Turn on supply water.
Checkstop Types 1, 2, and 3:
230 131 O-ring [2], Bonnet Gasket/O-ring [ 3]**, Washer [4]
230 132 Strainer Assembly/Screen[1], O-ring [2], Bonnet
Gasket/O-ring[3]** , Washer [4], Poppet Assembly [5]
Checkstop Type 4 (Obsolete valve):
230 130 Strainer Assembly [1], O-ring [2]
230 129 Poppet Assembly [5]
230 128 O-ring [2]
Part Description Type 1 Type 2 Type 2 Type 3 Type 3 Type 3 Type 4
Rough Bronze Bright Chrome Polished Chrome Rough Bronze Bright Chrome Polished Chrome Obsolete
(Obsolete) (Obsolete) (Obsolete)
1 PAIR (1 RH, 1 LH complete C/S) 230 046 230 047 230 048 – – – –
LEFT (1 LH complete C/S) 230 040 230 041 230 042 – – – –
RIGHT (1 RH complete C/S) 230 043 230 044 230 045 – – – –
1 Strainer Assembly – – – – – – 230 130
Screen 230 084 230 084 230 084 230 084 230 084 230 084 230 084
2 O-ring 230 131 230 131 230 131 230 131 230 131 230 131 230 128
230 132 230 132 230 132 230 132 230 132 230 132
3 Bonnet Gasket/O-ring 230 131 230 131 230 131 230 131 230 131 230 131 –
** 230 132 230 132 230 132 230 132 230 132 230 132 –
4 Washer 230 131 230 131 230 131 230 131 230 131 230 131 –
230 132 230 132 230 132 230 132 230 132 230 132 –
5 Poppet & Spring Assy. 230 132 230 132 230 132 230 132 230 132 230 132 230 129
6 Body Replace whole checkstop assembly (see first three rows above)
7 Bonnet 230 076A 230 077A 230 078A 230 076A 230 077A 230 078A –
8 Stem 230 079 230 080 230 081 230 079 230 080 230 081 –
9 Union Nut – – – – – 601 004 –
10 Union Tail – – – – – 601 005 –
** All checkstops manufactured before date code J44 (Nov. ’94) use a flat gasket for part 3. All models manufactured after date code J44 (Nov ’94) have a modified body,
and require an O-ring for part 3. Refer to the stamp on the valve bonnet for the date code. Kits for Types 1, 2 and 3 contain both parts for repair.
TI230-1 V3 0326 EDP# 6508915 Printed in U.S.A.
USA office: Phone: 800.669.5430 • Fax: 847.824.0627
Canadian office: Phone: 888.208.8927 • Fax: 888.882.1979
© 2003 Powers, a Watts Industries Co.
A Watts Industries Co.
www.powerscontrols.com
CALIFORNIA PROPOSITION 65 WARNING
WARNING: This product contains chemicals
known to the State of California to cause cancer
and birth defects or other reproductive harm.
(Installer: California law requires that this warning
be given to the consumer.)
For more information: www.wattind.com/prop65
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