Transcription of INSTALLATION REQUIREMENTS FOR BACKFLOW DEVICES
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INSTALLATION REQUIREMENTS FOR BACKFLOW DEVICES
INSTALLATION REQUIREMENTS FOR BACKFLOW pressure PRINCIPLE least 12 inches above a horizontal position with the relief valve discharging accessible for inline service and TYPE VACUUM least 12 inches above all downstream piping and water subjected to any accessible for inline service and TYPE VACUUM of all least 6 inches above all downstream piping and water subjected to under more than 12 hours continuous CHECK VALVE least 12 inches above a horizontal accessible for inline service and : Double check valve assemblies have very limited application. Water connections to looped domestic services, certain fire systems andmeter service protection are examples of where they may be water is required at all sanitary facilities, drinkingfountains, emergency eyewash stations and safety industrial water piping and outlets must be identified to clearlydistinguish them from domestic water couplers must be installed downstream of an approvedreduced pressure principle device or pressure type vacuum testable BACKFLOW DEVICES are to be tested upon INSTALLATION bya certified BACKFLOW device tester and a report filed with this office.
INSTALLATION REQUIREMENTS FOR BACKFLOW DEVICES 1. REDUCED PRESSURE PRINCIPLE DEVICE a. at least 12 inches above grade. b. in a horizontal position …
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