Use and Care Manual

ManualsBrandsZurn-Wilkins ManualsPlumbing ProductRepair Kit for Water Pressure Reducing Valve

 Installation  Testing  Maintenance Instructions

Model 70XL LEAD-FREE*

Pressure Reducing Valve with Integral By-pass (3/4” & 1”)

REPAIR KIT INSTRUCTIONS

HOW TO MAKE REPAIRS:

(Shut off service before starting disassembly)

1. Open faucet on dwelling to remove line pressure.

2. Note distance that adjustment bolt protrudes from bell housing. Loosen

locknut on adjustment bolt, then turn adjustment bolt out of bell

housing to remove spring tension.

3. Unscrew bell housing counterclockwise and remove spring, spring

disc and friction ring.

4. While holding diaphragm, unscrew diaphragm bolt counter-clock-

wise and remove bolt, diaphragm disc and diaphragm.

5. Remove cartridge counterclockwise; Use a 1-1/8” socket for the

3/4” and a 1-3/8” socket for the 1”. Make sure cartridge gasket is

removed from the body.

TO REASSEMBLE:

1. While disassembled, open inlet of water service to ush out valve

body and service line of debris.

2. Lubricate o-ring on replacement cartridge then thread into body

clockwise. Do not overtighten.

3. Replace diaphragm, diaphragm disc and diaphragm bolt (It is neces-

sary to hold diaphragm while tightening diaphragm bolt.).

4. Replace friction ring, spring, spring disc and bell housing. Tighten

bell housing onto body by threading clockwise.

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 adjusment bolt

clockwise (into bell housing) to raise pressure or counterclock-wise

(out of bell housing) to lower pressure.

It is recommended a pressure gauge be installed down stream

of the regulator to ensure pressure 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.

INSTALLATION INSTRUCTIONS

Install valve in line with arrow on valve body pointing in direction of ow.

Before installing reducing valve, ush 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 adjustment bolt clockwise (into bell hous-

ing) to raise reduced pressure, or counterclockwise (out of bell housing)

to lower reduced pressure.

NOTICE: Annual inspection and maintenance is required of all

plumbing system components. To ensure proper performance and

maximum life, this product must be subject to regular inspection,

testing and cleaning. The valve shall be installed in an accessible

location. Also, it is recommended that a suitable strainer be installed

upstream of the valve.

Regulators in series: Where the desired pressure reduction is more

than a 4 to 1 ratio (i.e. 200psi to 50psi), multiple regulators 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.

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.

*This product contains a weighted average lead content less than 0.25% for wetted surfaces.

UNION NUT

TAILPIECE

BODY

*SPRING DISC

NAMEPLATE

ADJUSTMENT

BOLT

*UNION GASKET

*CARTRIDGE

*SPRING

LOCKNUT

*DIAPHRAGM

SEALED CAGE

WASHER

*SEAL RING

BELL

HOUSING

*DIAPHRAGM

DISC

*CARTRIDGE O-RING

*DIAPHRAGM BOLT

*FRICTION RING

*INDICATES PARTS SUPPLIED IN REPAIR KITS

WARRANTY: ZURN WILKINS Valves are guaranteed against defects of material or workmanship when used for the services recommended. If

in any recommended service, a defect develops due to material or workmanship, and the device is returned, freight prepaid, to ZURN WILKINS

within 12 months from date of purchase, it will be repaired or replaced free of charge. ZURN WILKINS’ liability shall be limited to our agreement

to repair or replace the valve only.

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

ADVERTENCIA: Cáncer y daño reproductivo - www.P65Warnings.ca.gov

AVERTISSEMENT: Cancer et néfastes sur la reproduction - www.P65Warnings.ca.gov

Summary of content (2 pages)

PAGE 1
Model 70XL LEAD-FREE* ® Pressure Reducing Valve with Integral By-pass (3/4” & 1”) *This product contains a weighted average lead content less than 0.25% for wetted surfaces.  Installation  Testing  Maintenance Instructions REPAIR KIT INSTRUCTIONS HOW TO MAKE REPAIRS: ADJUSTMENT BOLT (Shut off service before starting disassembly) LOCKNUT 1. Open faucet on dwelling to remove line pressure. 2. Note distance that adjustment bolt protrudes from bell housing.
PAGE 2
Troubleshooting Pipe lines in a water supply system must be of sufficient carrying capacity to maintain adequate pressure at the most remote or highest fixture. Under the maximum probable fixture use, minimum adequate pressure is generally 8 to 15 lbs. but may be more, depending on the equipment being supplied. Relatively high service pressures which can create high water velocities in pipe lines would allow use of smaller pipes to satisfy fixture use.