Ti-SALES 70XL Pressure Reducing Valve with Integral By-pass Instruction Manual
- June 4, 2024
- Ti-SALES
Table of Contents
Ti-SALES 70XL Pressure Reducing Valve with Integral By-pass
REPAIR KIT INSTRUCTIONS
HOW TO MAKE REPAIRS:
(Shut off service before starting disassembly)
- Open faucet on the dwelling to remove line pressure.
- Note the distance that the adjustment bolt protrudes from the bell housing. Loosen locknut on adjustment bolt, then turn adjustment bolt out of bell housing to remove spring tension.
- Unscrew bell housing counterclockwise and remove the spring, spring disc, and friction ring.
- While holding the diaphragm, unscrew the diaphragm bolt counter-clockwise and remove the bolt, diaphragm disc, and diaphragm.
- Remove cartridge counterclockwise; Use a 1-1/8” socket for the 3/4” and a 1-3/8” socket for the 1”. Make sure the cartridge gasket is removed from the body.
TO REASSEMBLE:
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While disassembled, open the inlet of water service to flush out the valve body and service line of debris.
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Lubricate the o-ring on the replacement cartridge then thread into body clockwise. Do not over-tighten.
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Replace the diaphragm, diaphragm disc, and diaphragm bolt (It is necessary to hold the diaphragm while tightening the diaphragm bolt.).
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Replace friction ring, spring, spring disc, and bell housing. Tighten bell housing onto the body by threading clockwise.
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Turn the adjustment bolt into bell housing to the old setting.
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Enter the dwelling and turn on several faucets.
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Turn on the water service. Let the water run for several seconds then turn off the faucets in the dwelling.
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Adjust the regulator to a desired pressure by turning the adjustment bolt
clockwise (into bell housing) to raise pressure or counterclockwise (out of bell housing) to lower pressure. It is recommended a pressure gauge be installed down stream of the regulator to ensure the pressure is reduced below 75 psi.
NOTE: When reducing pressure, open a downstream faucet to relieve pressure. -
Tighten the locknut when desired pressure is achieved.
INSTALLATION INSTRUCTIONS
Install valve in line with arrow on valve body pointing in direction of flow.
Before installing the reducing valve, flush the outline 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 the adjustment bolt clockwise (into bell housing) 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.
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
Troubleshooting
Pipelines 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 the use of smaller pipes to satisfy fixture use. However, high velocity tends to cause whistling and humming. Reduction of pressure by the use of a pressure-reducing valve, in an attempt to eliminate the such condition, may reduce pipeline capacities below that which is adequate for maximum probable use. When high service pressures are in effect, either continuously or periodically, the application of a pressure-reducing valve will be successful only when the installed pipeline is of adequate size to satisfy the system demand at the lower pressure. When actual water demands are unknown, the valve size should be no less than the existing pipe size.
POSSIBLE CAUSE OR CAUSES
- Thermal expansion of water as it is being heated.
- Foreign matter on seating face of seal ring.
- Cut, worn or chipped seal ring.
- Cut or worn stem o-ring or worn o-ring groove.
PROBLEM
Pressure creeps or builds up in system above the setting of pressure reducing valve.
SOLUTION
- This is a natural consequence. It may happen each time that the heater runs. A pressure relief valve or expansion tank must be installed. This will not prevent pressure rise but should limit it to a safe level.
- Flush the reducing valve by opening one or two fixture outlets wide. If this does not correct the problem, remove seal ring for cleaning.
- Replace with new seal ring. Temporary repairs may be made by turning the seal ring over.
- Replace with new stem o-ring and/or cartridge.
Pressure and fixture flow is unsteady.
- Low water supply pressure in mains caused possibly by high area demand during certain periods of the day.
- Heavy periodic demands by appliances in the house.
SOLUTION
- This is a water department problem. It is due to the mains being inadequate for the demands made on them.
- House service lines may at times be inadequate for the load. Size of some pipelines may need to be increased. Pressure setting of reducing valve may be too low.
- Try increasing pressure before changing pipelines.
Small, inadequate flow from fixtures.
- Pipelines to fixtures may be too small or house main supply may be inadequate for normal fixture demand.
- Heavy periodic demands by appliances in the house.
- Screen clogged with debris.
SOLUTION
- It may be necessary to increase pipe sizes only in some sections of the system leading to the offending appliances or fixtures. Increasing the house service mains might be necessary if small supply is general at all fixtures.
- Raise pressure gradually by readjusting valve until this point is determined.
- Clean screen.
Valve appears to be noisy; hums, whistles or chatters.
- Hum or whistle is usually caused by a high velocity of flow in pipelines causing vibration.
- Chatter usually originates with worn seat washer or loosely installed seal ring.
SOLUTION
- Pipelines could be small or too light. Reducing valves could be too small. Pipes and valves being small would accentuate this condition.
- Inspect seal ring. If a deep channel appears on seal ring face, replace or use the opposite side.
- Frequently noise appears in a faucet or appliance and seems to originate from the reducing valve. There is a general tendency to use streamlined piping of a relatively small size. Velocity is naturally high and the noise of fast-moving water is not unusual.
1747 Commerce Way, Paso Robles, CA 93446 Phone:855-663-9876 Fax:805-238-5766
References
Read User Manual Online (PDF format)
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