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Conbraco 4A-505-02(F) 1-inch bronze pressure vacuum breaker showing ball valves, test cocks and freeze relief valve.

Conbraco 4A-505-02(F) 1" Bronze Freeze-Resistant PVB

Brand: Conbraco Industries
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$286.85
$215.14
SKU 4A505A2F
In Stock (5)

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The Conbraco 4A-505-02(F) is a 1-inch bronze pressure vacuum breaker (PVB) engineered to protect potable water systems from backsiphonage. It combines a modular check valve cartridge with an integral freeze-relief valve for reliable, low-maintenance backflow protection.

  • Bronze body with female pipe thread (FPT/NPT) connections for straightforward installation.
  • Built-in freeze-resistant relief valve reduces risk of damage during intermittent freezing.
  • Modular check valve cartridge with captured stainless steel spring and reversible silicone seat disc for easy servicing.
  • Apollo ball valve shutoffs with stainless steel handles and nuts provide durable shutoff and corrosion resistance.
  • Test cocks located for easy draining; installs vertically or horizontally to suit site conditions.
  • Rated to 150 psi and suitable for temperatures from 33°F to 140°F.

Downloadable installation manual and submittal sheet are available with the product. Recommended maintenance includes periodic inspection and cartridge replacement as needed to ensure continued protection of the potable water supply.

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Frequently Asked Questions

What is the maximum pressure rating for this PVB?
This model is rated to 150 psi; it is suitable for typical irrigation and potable water systems.
Can the unit be installed vertically or horizontally?
Yes. The assembly supports vertical up or horizontal installation to fit site conditions.
What maintenance does the PVB require?
Periodic inspection, test cock checks and cartridge replacement when worn will maintain protection.
What temperature range does this valve support?
Designed to operate between 33°F and 140°F; built-in freeze relief reduces freeze damage risk.

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