A.r.i. RP-500 User Manual

RP-500 Reduced Pressure Backfl ow Preventer
OPERATIONS, MAINTENANCE AND
TROUBLESHOOTING GUIDE
2RP-500 Operations, Maintenance and Troubleshooting Guide A.R.I.
Table of Contents
Features, Applications and Specifi cations ..........................................................................3
Installation ..............................................................................................................................4
Testing Procedures ................................................................................................................6
Maintenance ...........................................................................................................................8
Troubleshooting Guide.........................................................................................................9
Replacement Parts List .......................................................................................................10
RP-500 Operations, Maintenance and Troubleshooting Guide A.R.I. 3
The RP-500 Reduced Pressure Backfl ow Preventer consists of:
Two independent-acting spring-loaded check valves - an inlet and an outlet valve.
An automatic differential Relief Valve (located in the “zone” between the check valves) .
Two resilient seated shut off valves – one on the inlet, the other on the outlet.
Four test cocks.
PRODUCT FEATURES
Compact, lightweight size makes it easy and quick to install.
Requires only a Phillips-head screwdriver to disassemble and reassemble – no special tools needed .
Durable, made of non-corrosive plastic thermal resin material:
- Withstands the toughest environments.
- Unlike a brass Backfl ow Preventer, the RP-500 is less susceptible to vandalism and theft.
- UV resistant – endures heat and direct sun.
Low head loss – optimizes energy, saving energy costs.
The RP-500 is approved by the following Standards Authorities:
Approved under : USA : NSF61 (Drinking water), ASSE 1013, AWWA C511, Approved by the Foundation for Cross Connection Control and Hydraulic Research at the University of Southern California, Listed for Uniform Plumbing Code. Australia : AS4020 (Drinking water), Watermark AS2845.1. France : ACS.
APPLICATIONS
To protect potable water lines and other installations against backsiphonage and backpressure of contaminated water. For irrigation system and water handling applications.
SPECIFICATIONS
Operating pressure: up to 150 psi
Operating temperature: up to 110º F
Valve sizes: ½”, ¾”, 1”, 1¼”, 1½”, 2”
Features, Applications and Specifi cations
4RP-500 Operations, Maintenance and Troubleshooting Guide A.R.I.
Installation
FIGURE 1
GENERAL INSTALLATION GUIDELINES
A. Install the RP-500 Backfl ow Preventer in a location accessible to periodic fi eld testing and
maintenance. Mount the RP-500 in a horizontal position with adequate clearance from walls and/ or obstructions. A 12” to 33” clearance is needed between the lowest portion of the device and oor.
B. Adequate drainage is needed for discharge. A Drainage Funnel is provided so the discharge may
be piped away (See FIGURE 1).
NOTE: Never place the RP-500 where it may become submerged in standing water.
C. Before installing the RP-500, thoroughly fl ush all upstream piping to remove debris. D. When the shut-off valves are supplied separately, install them with a Test Cock on the Inlet Shut-
off Valve.
E. It is recommended that a “Y” strainer be installed before the inlet of the RP-500 to prevent debris
from entering the device.
F. After installing the assembly, close the Outlet Shut-off Valve, pressurize the RP-500 and release the
air through Test Cock 4. Then, open the Outlet Shut-off Valve.
RECOMMENDATIONS
Do not install in areas subject to extended periods of freezing temperatures.
The product must be protected from excessive pressure increases, caused by thermal expansion or water hammer, which can cause damage to the valve.
DO NOT USE ANY PIPE DOPE, OIL, GREASE OR SOLVENT ON ANY PARTS unless instructed to do so.
• Parts should fi t together freely. Do not force parts to fi t.
2XWOHW6KXW2II9DOYH
7HVW&RFN 7HVW&RFN 7HVW&RFN
7HVW&RFN
,QOHW6KXW2II9DOYH
'UDLQDJH)XQQHO$LU*DS
'UDLQDJH)XQQHO
Loading...
+ 8 hidden pages