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Wilkins 14-ZWFR Freeze Prevention Valve 1/4" MPT x FPT with 1/8" Test Cock | WK14-ZWFR

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SKU
WK14-ZWFR
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Wilkins 14-ZWFR 1/4" in. Freeze Prevention Valve With Test Cock

Designed to prevent freeze damage to backflow preventers installed above ground in geographical regions subject to oc- casional freezing. The model ZWFR senses water tempera- ture and opens at 35°F to discharge near freezing water from the backflow device and draw warmer supply water through the valve. The model ZWFR closes when water temperature reaches 40°F.

Features & Benefits

Kit Includes

  • 1- Freeze Relief Valve
  • 1- 1/8" Test Cock

Installation

  • The Model ZWFR should be installed on the downstream test cock or downstream attached piping of any backflow device installed above ground where freezing is a concern.
  • NOTICE: If the Model ZWFR is installed on a test cock, the test cock must be left in the open position to allow the ZWFR to function properly.
  • The device is best suited to be installed in the vertical down position, but may also be installed at any orientation up to horizontal. Orientations above horizontal may cause an ice dam during operation and impair valve function.
  • The device is not intended to replace the standard winteriza- tion process.
  • WARNING: Under freezing conditions the Model ZWFR will discharge water from the outlet port. Provisions must be made to insure that discharge will not damage surrounding property or equipment.
  • Ideal for regions where occasional/unexpected freezes occur, yet winterization (flushout) is not common
  • Compact size and shape allow for ease of installation
  • Hassle Free design requires no periodic maintenance, and can be used with all major brands of backflow preventer
  • Ideally suited for double-check and RP assemblies, vacuum breakers, and detector assemblies on large backflow products

HCV Product Installation

  • Flush the system until water from lateral line runs clean.
  • Use only Teflon paste or tape on all threaded connections ( note: Do not use Pipe Dope or solvent cement on threaded connections.) Apply the Teflon around the male adapter or nipple threads, then insert it into the HCV. Tighten by hand and then using a wrench, turn the adapter/nipple 1/2 turn to ensure a good seal. Overtighting may break the valve.
  • Glue the male adapters to the pipe, or thread the nipple into the PVC fitting.
  • Connect either the spray head or rotor to the HCV also using Teflon paste or tape.

Related Articles & Videos

Articles

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WK14-ZWFR
WK14-ZWFR
Brand:
Wilkins
Weight:
0.550000
Backflow Size:
1/4"
Lead Free:
Not Lead Free
End Connection:
MPT x FPT
Size (in.):
1/4"
Connection:
MPT x FPT
Lead Free:
Not Lead Free
Type:
Freeze Relief Kit
Test Cocks:
1 FEMALE
Main Valve Body Materials:
Brass
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Browse 2 questions Browse 2 questions and 2 answers
how much water does it discharge when it opens ?
Alfredo M on Feb 6, 2018
BEST ANSWER: It is a fine spray mist, which i divert away from the valve to prevent ice buildup. It is like a drip system mist nozzle. Maybe 1 gph.
Has anyone used this on a solar water heater-roof mounted?
A shopper on Dec 26, 2016

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