Repair Procedures Repair Video

Apollo/Conbraco

Model

4S-103

Description
Specification
Parts Breakdown

The Conbraco 4S-103 is a bypass device that is used on the 4S-600 and 4SG-600.

Parts Breakdown

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product
2nd Check Spring

Part #: A-1701-00
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2nd Check Spring

Part #: A-1700-00
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1st and 2nd Check Rubber Rebuild

Part #: 40-00G-04
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2nd Check Assembly

Part #: 40-00G-02
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1st and 2nd Check Rubber Rebuild

Part #: 40-00E-04
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2nd Check Assembly

Part #: 40-00E-02
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1st and 2nd Check Rubber Rebuild

Part #: 40-00C-04
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product
2nd Check Assembly

Part #: 40-00C-02
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1st and 2nd Check Rubber Rebuild

Part #: 40-00A-04
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2nd Check Assembly

Part #: 40-00A-02
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1st and 2nd Check Rubber Rebuild

Part #: 40-009-04
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2nd Check Assembly

Part #: 40-009-02
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1st and 2nd Check Rubber Rebuild

Part #: 40-007-A6
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1st and 2nd Check Rubber Rebuild

Part #: 40-004-A6
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product
Relief Valve Assembly

Part #: 40-00G-05
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1st Check Assembly

Part #: 40-00G-01
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Relief Valve Rubber Rebuild

Part #: 40-00G-06
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Seat Kit

Part #: 40-00G-03
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1st or 2nd Check Assembly

Part #: 40-00G-02
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Complete Rubber Rebuild

Part #: 40-00G-04
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product
Relief Valve Assembly

Part #: 40-00E-05
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1st Check Assembly

Part #: 40-00E-01
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Relief Valve Rubber Rebuild

Part #: 40-00E-06
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Seat Kit

Part #: 40-00E-03
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1st or 2nd Check Assembly

Part #: 40-00E-02
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Complete Rubber Rebuild

Part #: 40-00E-04
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product
Relief Valve Assembly

Part #: 40-00C-05
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1st Check Assembly

Part #: 40-00C-01
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Relief Valve Rubber Rebuild

Part #: 40-00C-06
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3/4″ Male x Female Test Cock

Part #: 70LF-804-01
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product
Seat Kit

Part #: 40-00C-03
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1st or 2nd Check Assembly

Part #: 40-00C-02
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product
Complete Rubber Rebuild

Part #: 40-00C-04
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product
Relief Valve Assembly

Part #: 40-00A-05
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product
1st Check Assembly

Part #: 40-00A-01
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product
Relief Valve Rubber Rebuild

Part #: 40-00A-06
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product
Seat Kit

Part #: 40-00A-03
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product
Complete Rubber Rebuild

Part #: 40-00A-04
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product
1st or 2nd Check Assembly

Part #: 40-00A-02
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product
Relief Valve Assembly

Part #: 40-009-05
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product
1st Check Assembly

Part #: 40-009-01
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product
Relief Valve Rubber Rebuild

Part #: 40-009-06
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product
Bypass Double Check Assembly – 4S-103

Part #: 4S-103
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product
1/2″ Male x Female Test Cock

Part #: 70LF-803-01
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product
Seat Kit

Part #: 40-009-03
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1st or 2nd Check Assembly

Part #: 40-009-02
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product
Complete Rubber Rebuild

Part #: 40-009-04
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product
Seat Kit

Part #: 40-007-A7
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Relief Valve Rubber Rebuild

Part #: 40-007-RV
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Relief Valve Assembly

Part #: 40-007-A3
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1st Check Spring

Part #: A-1703-00
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Complete Internal Parts Kit

Part #: 40-007-A1
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Complete Rubber Rebuild

Part #: 40-007-A4
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1st or 2nd Check Assembly

Part #: 40-007-A2
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1st or 2nd Check Spring

Part #: A-1701-00
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product
Complete Rubber Rebuild

Part #: 40-007-A6
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product
Seat Kit

Part #: 40-004-A7
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product
Relief Valve Rubber Rebuild

Part #: 40-004-RV
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product
Relief Valve Assembly

Part #: 40-004-A3
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1st Check Spring

Part #: A-1699-00
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Complete Internal Parts Kit

Part #: 40-004-A1
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Complete Rubber Rebuild

Part #: 40-004-A4
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1st or 2nd Check Assembly

Part #: 40-004-A2
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1st or 2nd Check Spring

Part #: A-1700-00
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product
Complete Rubber Rebuild

Part #: 40-004-A6
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product
Complete Internal Parts Kit

Part #: 4S-003-01
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product
Seat Kit

Part #: 40-003-A7
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Seat Removal Tool Set

Part #: 40-000-SRT
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Relief Valve Assembly

Part #: 40-003-A3
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1st or 2nd Check Assembly

Part #: 40-003-A2
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2nd Check Spring

Part #: A-1794-00
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1st Check Spring

Part #: A-1797-00
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Complete Internal Parts Kit

Part #: 40-003-A1
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Complete Rubber Rebuild

Part #: 40-003-A4
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LF Test Cock (1/4″ x 1/4″)

Part #: TCSLF-14
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Backflow Preventer Repair Manual

Part #: BFCAT
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LF Test Cock (1/8″ x 1/4″)

Part #: TCSLF-18
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Apollo/Conbraco

4S-103

Select

2nd Check Spring

2nd Check Spring

1st and 2nd Check Rubber Rebuild

2nd Check Assembly

1st and 2nd Check Rubber Rebuild

2nd Check Assembly

1st and 2nd Check Rubber Rebuild

2nd Check Assembly

1st and 2nd Check Rubber Rebuild

2nd Check Assembly

1st and 2nd Check Rubber Rebuild

2nd Check Assembly

1st and 2nd Check Rubber Rebuild

1st and 2nd Check Rubber Rebuild

Relief Valve Assembly

1st Check Assembly

Relief Valve Rubber Rebuild

Seat Kit

1st or 2nd Check Assembly

Complete Rubber Rebuild

Relief Valve Assembly

1st Check Assembly

Relief Valve Rubber Rebuild

Seat Kit

1st or 2nd Check Assembly

Complete Rubber Rebuild

Relief Valve Assembly

1st Check Assembly

Relief Valve Rubber Rebuild

3/4″ Male x Female Test Cock

Seat Kit

1st or 2nd Check Assembly

Complete Rubber Rebuild

Relief Valve Assembly

1st Check Assembly

Relief Valve Rubber Rebuild

Seat Kit

Complete Rubber Rebuild

1st or 2nd Check Assembly

Relief Valve Assembly

1st Check Assembly

Relief Valve Rubber Rebuild

Bypass Double Check Assembly – 4S-103

1/2″ Male x Female Test Cock

Seat Kit

1st or 2nd Check Assembly

Complete Rubber Rebuild

Seat Kit

Relief Valve Rubber Rebuild

Relief Valve Assembly

1st Check Spring

Complete Internal Parts Kit

Complete Rubber Rebuild

1st or 2nd Check Assembly

1st or 2nd Check Spring

Complete Rubber Rebuild

Seat Kit

Relief Valve Rubber Rebuild

Relief Valve Assembly

1st Check Spring

Complete Internal Parts Kit

Complete Rubber Rebuild

1st or 2nd Check Assembly

1st or 2nd Check Spring

Complete Rubber Rebuild

Complete Internal Parts Kit

Seat Kit

Seat Removal Tool Set

Relief Valve Assembly

1st or 2nd Check Assembly

2nd Check Spring

1st Check Spring

Complete Internal Parts Kit

Complete Rubber Rebuild

LF Test Cock (1/4″ x 1/4″)

Backflow Preventer Repair Manual

LF Test Cock (1/8″ x 1/4″)