HOW TO MAKE REPAIRS:
(Shut off service before starting disassembly)
Model BR4EC
Pressure Reducing Valve with Integral By-pass
and Pressure Relief Valve
(1/2", 3/4", 1 1/4", 1 1/2" & 2")
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Installation
q
Maintenance Instructions
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company
REPAIR KIT INSTRUCTIONS
BODY
UNION NUT
UNION TAILPIECE
*LOWER O-RING
UPPER O-RING*
*CARTRIDGE
*SPRING
*FRICTION RING
BELL HOUSING
ADJUSTMENT BOLT
SPRING*
DISC
INNER LOCKNUT
OUTER LOCKNUT
*UNION GASKET
RETAINING*
BOLT
FRICTION RING DETAIL
P1520
*INDICATES PARTS SUPPLIED IN REPAIR KITS
SEALED CAGE
WASHER
1.
Note distance that adjustment bolt protrudes from bell housing.
Loosen locknut on adjustment bolt, then turn adjustment bolt out
of bell housing until free of spring tension.
2.
Unscrew bell housing counterclockwise and remove spring, spring
disc and friction ring.
3.
Remove cartridge from regulator by gripping retaining bolt with
pliers and pulling outwards away from body.
TO REASSEMBLE:
INSTALLATION INSTRUCTIONS
CAUTION: Anytime a reducing valve is adjusted, a pressure
gauge must be used downstream to verify correct pressure
setting. Do not bottom out adjustment bolt on bell housing.
Valve may be installed in any position.
1.
Open shut-off valve slowly and flush body and line of any debris.
2.
Replace old cartridge assembly with new cartridge assembly. Prior
to installation, apply a small amount of lubricant to cartridge o-rings.
The cartridge is pushed into bore on body and seals against o-rings.
3.
Install new spring, spring disc and friction ring. Make sure friction
ring is installed with raised edge facing up (friction ring detail).
4.
Replace bell housing by tightening clockwise (Be sure not to over-
tighten.). Turn adjustment bolt clockwise until adjustment bolt touches
spring disc.
5.
Turn adjustment bolt into bell housing to old setting.
6.
Enter dwelling and turn on several faucets.
7.
Turn on water service. Let water run for several seconds then turn
off faucets in dwelling.
8.
Adjust regulator to desired pressure by turning adjustment bolt clock-
wise (into bell housing) to raise pressure or counterclockwise (out
of bell housing) to lower pressure.
It is recommended a pressure
gauge be installed downstream of the regulator to ensure pres-
sure is reduced below 75 psi.
NOTE: When reducing pressure,
open a down stream faucet to relieve pressure.
9.
Tighten locknut when desired pressure is achieved.
Install valve in line with arrow on valve body pointing in direction
of flow. Before installing reducing valve, flush out line to remove
loose dirt and scale which might damage seal ring and seat. All
valves will be furnished with stock settings to reduce to 50 psi.
To readjust reduced pressure, loosen outer locknut and turn ad-
justment bolt clockwise(into bell housing) to raise reduced pres-
sure, or counterclockwise(out of bell housing) to lower reduced
pressure.
WARNING: Attach drain line to relief valve and plumb to a
safe location. The drain line should terminate at a location
where discharge of water will not cause damage or general
discomfort.
DIRECTION OF FLOW
MODEL BR4EC
DRAIN
P1520 PRESSURE RELIEF VALVE
TYPICAL INSTALLATION
WARRANTY:
WILKINS Valves are guaranteed against defects of material or workmanship when used for the services recom-
mended. If in any recommended service, a defect develops due to material or workmanship, and the device is returned, freight
prepaid, to WILKINS within 12 months from date of purchase, it will be repaired or replaced free of charge. WILKINS' liability shall
be limited to our agreement to repair or replace the valve only.
NOTICE: Annual inspection and maintenance is required of
all plumbing system components. To ensure proper perfor-
mance and maximum life, this product must be subject to
regular inspection, testing and cleaning.
Proposition 65 Warning This product contains chemicals known to the State of California to cause cancer or birth defects or
other reproductive harm.
Regulators in series: Where the desired pressure reduction
is more than a 4 to 1 ratio (i.e. 200psi to 50psi), multiple regu-
lators in series should be installed.
SEALED CAGE WARNING: Loosen lock washer at adjustment
bolt slowly. Look for any trapped water pressure under the
sealed cage washer. Relieve pressure before removing bell.
