Designed for use in non-health hazard cross-connections and continuous pressure applications subject to backpressure or backsiphonage incidents, such as lawn sprinklers, fire sprinkler lines, commercial pools, tanks and vats, and food cookers. Have a question or two? Visit our Customer Support page to find the answers you're looking for.

This article discusses underground and above-ground installations of a double-check valve assembly. Before installation, run the main irrigation supply line from the isolation valve to the vicinity of the DCVA valve box. Temporarily seal the end of the pipe to keep out soil and debris.

Double Check Detector Assemblies are designed to prevent backflow of non-health hazard substances from being pumped or siphoned into the potable water supply. Certain models have a meter to detect ground leaks and unauthorized illegal taps. Available in multiple configurations and material construction. Have a question or two?

Series C300, C300N Double Check Valve Assemblies prevent the backflow of pollutants that are objectionable but not toxic, from entering into the potable water supply. Its compact housing consists of two independently operating tri-link check …

The 350ASTDA Double Check Detector Assembly protects against both backsiphonage and backpressure in low health hazard, fire protection applications. Its stainless steel body, access covers, internals, fasteners, and springs are corrosion-resistant for reduced maintenance costs.

These Wilkins 350 Series double check valve assemblies, manufactured by Zurn, are designed for installation on water lines to protect against both back-siphonage and back-pressure of polluted water into the water supply.

Series 709DCDA Double Check Detector Assemblies prevent backflow of non-health hazard fire protection system substances from being pumped or siphoned into the potable water supply. It incorporates a meter to detect ground leaks and unauthorized illegal taps, greatly reducing annual water expenses.

Short, inline configuration, horizontal or vertical, center stem guided TriForce check valves. Bypasses accurately measure low flows. Multiple shutoff valve options. 2-1/2"-12". Backflow distributors Inc. is your authorized source for Apollo Valve products in California and can ship model DCDALF4A nationally.

Before installation begins, run the main irrigation supply line from the isolation valve to the vicinity of the DCVA valve box. Temporarily seal the end of the pipe to keep out soil and debris. Begin by installing a rectangular irrigation box in accordance with local code.

2024年4月5日 · Among these devices, the Reduced Pressure Zone (RPZ) and Double Check Valve Assembly (DCVA) are commonly employed, each with distinct features and applications.