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Brass dual check vacuum breaker, FIP connection, compact cylindrical body

Watts

Watts 3/8 LF N9C Dual Check Vacuum Breaker FIP

SKU CH-F8C9-Z087N

A dual-check vacuum breaker with brass body, 3/8 in FIP connection, 125 psi max pressure and 33 to 140 °F range, certified to CSA B 64.8

  • TypePipes, Valves & Fittings
  • Prevents backflow with dual-check vacuum breaker design
  • Operates reliably from 33 to 140 degrees Fahrenheit
  • Handles up to 125 psi maximum pressure
  • Meets CSA B64.8 standard for safety compliance
  • Durable brass body resists corrosion for long service life

3/8" Dual Check Vacuum Breaker FIP

This Watts 3/8" dual check vacuum breaker protects potable water supplies from backsiphonage in residential and light commercial plumbing. The brass body meets CSA B64.8 requirements for backflow prevention devices. Installers use it on bath faucet supplies where a compact, female iron pipe connection is specified.

Thermals noise and power draw in normal use

The valve operates passively with no electrical consumption or moving parts that generate noise. Brass construction withstands continuous water temperatures from 33 to 140 degrees Fahrenheit. Internal check modules seal against supply pressures up to 125 psi without chatter or hammer under typical flow conditions.

How it fits into a build

The 1-1/4 inch width and 2-3/8 inch height allow installation in tight cabinet spaces behind bath fixtures. Female iron pipe threads connect directly to 3/8 inch supply stops or risers without adapters. CSA B64.8 compliance satisfies code officials, while the dual check design eliminates the need for separate test cocks or annual field testing.

Highlights

  • Prevents backflow with dual-check vacuum breaker design
  • Operates reliably from 33 to 140 degrees Fahrenheit
  • Handles up to 125 psi maximum pressure
  • Meets CSA B64.8 standard for safety compliance
  • Durable brass body resists corrosion for long service life

Specifications

BrandWATTS
TypePipes, Valves & Fittings

Questions about this item

How do I install the 3/8 inch FIP dual check vacuum breaker and which step is commonly missed?

Thread the male pipe threads into the female FIP inlet using pipe sealant; the step often missed is confirming flow direction matches the arrow cast on the brass body before tightening.

What maintenance will the brass vacuum breaker need over its service life?

Inspect the dual check poppets annually for debris or mineral build-up; flush or replace the internal check assemblies if discharge or reduced flow appears.

At what pressure limit will the valve stop protecting the line during sustained use?

The maximum working pressure is 125 psi; sustained pressure above that level can prevent the checks from sealing properly.

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