WattsBackflow preventer

Vital to safeguarding potable water supply, backflow assemblies are necessary within hospitals, medical facilities, and laboratories with medical gas and water treatment systems.

Backflow prevention assemblies stop the undesirable reversal flow of water or other liquids, gases, or substances into potable water distribution pipes. The assemblies ensure that water flows in only one direction and protects potable water systems from contamination or pollution due to backflow. Each ParkUSA BackFlo® backflow prevention assembly includes a complete cross-connection control solution for all municipal, residential, commercial, and industrial projects. The assemblies are delivered onsite and ready to plumb.

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An integrated detection feature continuously monitors water flow and can detect abnormal water usage which may indicate an unauthorized tap.

Our backflow preventor assemblies are manufactured in a variety of models to suit almost any building site. Model types are selected based on degree of potential cross-connection hazard, varying from non-health hazard pollutants to contaminants that could causes illness or death if ingested. Double check valve assemblies are preferred and certified for contemporary use. The double valve adds security and continuously monitors water flow while detecting any abnormal or unauthorized usage. If such usage is detected, it triggers an alarm, notifying personnel or monitoring systems of potential issues.

Assemblies with one check valve can be used for other non-hazard applications, such as incorporation into fire protection systems.

Want to boost your team's knowledge? Need a quick refresher? ParkUSA offers free “Lunch & Learn” presentations to architect and engineering firms, private companies and public-sector agencies. Let us know your area of interest and the appropriate ParkUSA subject matter expert will come to your office, providing lunch, and spend 30 to 45 minutes sharing their knowledge, expertise and experiences with your team. Our Lunch and Learn program is designed to qualify for 1.0 Professional Development Hour for Professional Engineers. Call or email us for more information.

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Rigorous testing during manufacturing ensures the installation of a working system that meets quality and performance standards.

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A backflow prevention assembly contains all parts within a precast concrete vault. The components vary, depending on model, but the mechanics remain constant. Each assembly has an inlet and outlet. The inlet connects to the source of potentially contaminated water, while the outlet connects to the potable water supply system, usually a building. Water moves from the source through the inlet into the backflow assembly. Check valves are a mechanical device that allows water to flow in one direction while preventing backflow in the opposite direction.

Units prevent the undesirable reversal flow of water or other liquids, gases or substances into potable water distribution pipes.

ParkUSA designed and manufactured a custom DeconTank® for this Washington hospital’s new campus. The state-of-the-art system integrates a fiberglass holding tank, diverter, and control system to manage hazardous wastewater efficiently.

Certified backflow prevention systems contain a double check valve assembly. Check valves are mechanical, spring-loaded, or pressure sensing devices that close when there is a reversal of water flow. Under normal operation, the check valves remain open allowing water to flow without restriction. If there is a reversal in water flow and a potential of backflow, the check valve will close due. This initial closure blocks the reverse flow of water. A single check valve unit is not a certified backflow prevention system, and now rarely used to ensure cross-connection quality.

Backwater valve

Industrial settings rely on backflow preventers to protect against potential contamination from processes, chemicals, or industrial equipment that could pose a risk to the public water supply.

ParkUSA manufactures multiple backflow preventors for use in various settings including fire department connection assemblies.

Two check valve system is the only certified backflow prevention system that provides additional protection against backflow if the first check valve fails or leaks,

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In spaces with decorative or recreational water features, backflow prevention assemblies are often required to prevent stagnant or chemically treated water from entering the municipal water supply.

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Backflow prevention assemblies are typically equipped with test cocks or ports for periodic testing and maintenance. The check valves can be examined to ensure they are operating properly and closing tightly to prevent backflow.

ParkUSA backflow prevention assemblies protect potable and municipal water supplies by eliminating any potential cross contamination.

Residential and commercial buildings need to protect their potable water supply and facilitate a connection to the fire department’s water supply.

Check valve

The LintTrooper® Model LTDB 2500 helps Portland Rent All enhance wastewater management for their expanding hospitality services. This system ensures compliance with Portland’s pH and solids standards through advanced filtration, pH monitoring, and IoT-based real-time control.

Backflow assemblies are commonly employed in irrigation systems to prevent the backflow of non-potable water into the main water supply.

Backflow prevention assemblies are often used in fire sprinkler systems to prevent backflow and ensure the integrity of the water supply dedicated to fire protection.

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Municipal water distribution systems must be protected against potential contamination from cross-connections, such as with industrial or agricultural water sources.