Dans le but d’empêcher la contamination d’un réseau d’eau potable, chaque raccordement ou sortie d’un réseau d’eau potable agissant comme source pour un système d’irrigation doit être protégé contre les risques de refoulement ou de siphonnement de l’eau introduite dans le système d’irrigation.

Cette protection doit être effectuée au moyen d’un dispositif anti-refoulement ou d’un brise-vide conforme aux exigences des codes locaux (Chapitre III – Plomberie du Code de construction du Québec et/ou les normes locales de votre municipalité) et installé en conformité avec ces codes et les recommandations du manufacturier.

Features & Benefits

• 825 "Y Design" Reduced Pressure Zone Assembly w/ Ball Valve
• Ultimate mechanical protection of portable water, against hazards of cross connection contamination.
• Meets allspecicications of AWWA, ASSE, CSA and approved by the Foundation for Cross-Connection Control and Hydraulic Research at the University of Southern California.
• Modular relief valve for ease of maintenace.
• Simple Service procedures. All internal parts serviceable in line.
• Low Head Loss.
• Spring loaded "Y" type check valves.
• Internal relief valve pressure sensing passages.
• Replaceable seat rings on all sizes.
• End connection - NPT ANSI / ASME B1.20.1

Pressure – Temperature

• Max. Working Pressure: 175psi (12.1 bar)
• Hydrostatic Test Press: 350psi (24.1 bar)
• Temperature Range: 32°F to 140°F (0°C to 60°C)

Materials

• Valve Body: Bronze
• Diaphragms: Nitrile, fabric reinforced
• Elastomers: Silicone
• Springs: Stainless Steel

 Approvals – Standards

• AWWA Conformance (C511)
• Approved by the Foundation for Cross-Connection Control and Hydraulic Research at the University of Southern California.

WARNING! Irrigation systems supplied by domestic or private potable water systems are considered to be a potential pollution hazard to the water supply. These systems must include protection to prevent possible backflow of irrigation water into the potable water supply.

Federal law requires a proper backflow device to be installed on any watering system to prevent contamination of the supply; whether it be pump or city water. Check your local water authority for installation requirements & codes. In many rural areas; specific requirements for landscape irrigation systems may not be covered in local plumbing codes and/or enforcement may be limited. HOWEVER...limitation in local authority does not alter the basic requirement for protection of the potable water supply.