Apollo RP4A User Manual

2
Customer Service (704) 841-6000
www.apolloflowcontrols.com
“Apl”
Flow Controls
INSTALLATION, OPERATION & MAINTENANCE
MANUAL
SECTION DESCRIPTION PAGE
Reduced Pressure Principle Backflow Preventer RP4A / RPLF4A
I Description and Operation 3
II Installation 3
III Troubleshooting Guide 4
IV Maintenance Instructions (RP/RPDA mainline) 5
2-1/2” - 6” 5-7
8” - 12” 7-11
V Testing Procedures 12-13
Reduced Pressure Detector Assembly RPDA4A / RPDALF4A & RPDA24A / RPDA2LF4A
VI Description and Operation 14
VII Installation 14
VIII Maintenance Instructions - Bypass Single Check (Type 2) 23
IX Maintenance Instructions - Bypass RP (Type 1) 36
PARTS LIST
2-1/2” - 6” RP & RPDA (Mainline) 16-17
8” - 12” RP & RPDA (Mainline) 13-14
2-1/2” - 12” RPDA2 (Type 2) Bypass Single Check 15
2-1/2” - 12” RPDA (Type 1) Bypass RP 28
REPAIR KITS
2-1/2” - 6” Check Valves 18
8” - 12” Check Valves 18
2-1/2” - 6” Relief Valves 21
8” - 12” Relief Valves 21
Bypass Single Check (RPDA Type 2) 22
Bypass RP (RPDA Type 1) 35
Bypass Line Kits 23-33
Shut-o Valves 37-39
TABLE OF CONTENTS

Apollo RP4A Specifications

General

Brand	Apollo
Model	RP4A
Category	Control Unit
Language	English