Powers HydroGuard Checkstops Installation guide

Brand: Powers

Model: HydroGuard Checkstops

Type: Installation guide

This manual is also suitable for

HydroGuard Checkstops - Combo Strainer/Checkstop

Powers HydroGuard Checkstops combine the functionality of a strainer and a check valve, providing both filtration and backflow prevention in a single, compact unit. These versatile checkstops are suitable for use in a wide range of plumbing applications, including concealed and exposed piping systems for shower mixers, fotoguards, and more. With their 1/2" NPT connections, they can be easily integrated into existing plumbing setups.

Key Features and Benefits:

Triple-duty functionality: Straining, check valve, and isolation valve in one
Prevents backflow and contamination
Compact design for easy installation in tight spaces

Key Features and Benefits:

Triple-duty functionality: Straining, check valve, and isolation valve in one
Prevents backflow and contamination
Compact design for easy installation in tight spaces

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

DESCRIPTION

INSTALLATION

Strainer

O-ring

Poppet with

Spring

Washer

O-ring/

Gasket

Body

Bonnet

Stem

Bonnet

O-ring

Washer

Strainer

Poppet with

Spring

Body

Stem

Union Nut

Union End

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

[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 counter-

clockwise.

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

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