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  1. Backflow Preventer Types | NFPA

    Oct 28, 2022 · There are a few different types of backflow preventers available, and the type of backflow preventer required by the water authority is going to be based on the degree of …

  2. Types Of Backflow Preventers | Sprinkler School

    Each of the most common types of backflow devices is suitable for a different style of irrigation system. Read more about the four types of backflow preventers.

  3. Choosing the Right Backflow Preventer: Types, Innovations ...

    Sep 4, 2024 · Backflow preventers are essential devices in safeguarding potable water supplies from contamination due to reverse flow. With various types available, selecting the right …

  4. Understanding the Different Types of Backflow Preventers

    Oct 19, 2021 · There are several types of backflow preventers to choose from. The primary factor to keep in mind is the potential for cross-contamination between the gases and the water supply.

  5. Types of Backflow Preventers | Stewards Plumbing

    Jul 2, 2025 · Air gap, PVB, DCVA, SVB are common types of backflow preventers. Read our guide on backflow testing, prevention devices and installation.

  6. Backflow Preventer Types: Domestic, Fire & Irrigation Guide

    Sep 22, 2025 · It’s crucial to understand that backflow preventers aren't a one-size-fits-all solution. Different areas of your property – from domestic water lines to fire suppression and irrigation …

  7. Types of backflow preventers: which one does your home need?

    Learn about the 4 main types of backflow preventers — PVB, AVB, DCVA, and RPZ — and find out which is right for your property with Pacific Backflow.

  8. Types of Backflow Preventers Air Gap A physical separation between the free-flowing discharge end of a potable water supply pipeline and an open or non-pressure receiving vessel. Should …