Summary Pages Protecting drinking water networks 1 Protection systems for drinking water networks 2 The Antipollution range 3 BA backflow preventers : functioning principle 4 Backflow preventers with controllable reduced pressure zones 5 Backflow preventers BA2760 and 2670CD 6 Backflow preventers BA4760 - Installation advice 7 Set of protection with or without rail 8 Control kit for maintenance of BA backflow preventers 9 Control kit for maintenance of BA backflow preventers 10 Contractual Replacement Annually Notified 10 Disconnector with different non controllable pressure zones 11 Hose union...

Protecting drinking WATER NETWORKS Why and against what risk ? WATER is the most precious of our natural resources, source of life and health, today we use water for multiple needs. Whatever its destination - domestic, urban, agricultural or industrial, the water we use every day is distributed by interlinking networks of pipelines which are becoming more and more complex. In this network, the risk of pollution by ”backflow” is always present. By siphoning or overpressure, backflow may occur when the usual direction in the distribution circuit is reversed. This return may draw water The risk...

Protection systems for drinking water networks... Agriculture, chemical or agricultural industries, collective or individual housing, workshop or business, all kinds of user are served by and linked to the same network : the risks of telescoping multiply. As the network becomes more and more complex, an incident is more and more likely to occur in the water distribution system. HA 216 BA 2760 BA 2760 BA 4760 HD 206 EA 221 B EA 251 HD 206 EA 453 HA 216 HA 216 EA 453 EA 221 B HD 206 BA 2760 2 CA 296 EA 251 CC HA 216

Incidents may occur of various degrees of seriousness when pumping a polluted liquid, siphoning a tank of chemical product, disposing of a dangerous product or rejecting waste water. A ...The ntipollution range Degrees of protection TRULY EFFECTIVE To be the protection system must contain no weakness : at every juncture the link must be totally adapted to its function. Socla is the only European manufacturer to offer a complete range of anti-pollution products responding to every kind of incident which may occur. For each level of risk Socla ensures perfect safety. BA Backflow preventer with...

BA BACKFLOW PREVENTERS - Functioning principle BACKFLOW PREVENTERS WITH CONTROLLABLE REDUCED PRESSURE ZONES A BA backflow preventer protects the drinking water network by interrupting the continuity of the supply to the user, emptying and evacuating to waste in case of danger of water being turned back into the main pipeline. NORMAL WORKING UNDER PRESSURE Upstream chamber 4 Middle chamber Downstream chamber 2 1 5 3 y Upstream check valve x Downstream check valve c Discharge valve v Membrane b Outlet drain holder IN FLOW FLOW INTERRUPTED (static pressure) The two check valves are open ; the discharge...

BA BACKFLOW PREVENTERS BACKFLOW PREVENTERS WITH CONTROLLABLE REDUCED PRESSURE ZONES Optimal performance • Total accessibility Valve sections removable working parts on-site (by removing the valve of head/discharge valve section, the check valves can be reached instantly). without special tools Easy maintenance sub-sections easily exchanged • Longer reliability High performance materials non-incrustation discharge valve and check valves casing in bronze, NBR (nitrile) membrane, silicone seals Pressure sampling points for checking during maintenance operations Membrane O-Ring seal Moveable cover...

BA 4760 and BA 4660 BACKFLOW PREVENTERS WITH CONTROLLABLE REDUCED PRESSURE ZONES General characteristics : Easy maintenance M/M Compact T High performance materials P Connections : union male BSP connections Maximum working temperature 65°C Maximum working pressure 10 bar BA BACKFLOW PREVENTERS Nomenclature 6 y Upstream check valve ownstream D check valve Discharge valve utlet drain O holder y v Valve casing and cover : bronze Check valves : brass + PPO (polyphenylene oxide) Valve seat and discharge valve : PPO (polyphenylene oxide) Spring, screws, ring, discharge valve seat : stainless steel...

DISCONNECTEURS BA 4760 BACKFLOW PREVENTERS WITH CONTROLLABLE REDUCED PRESSURE ZONES General characteristics : Installation advice for BA backflow preventer The backflow preventers (type BA 2760 and BA 4760) must due to present regulations be equipped with accessories such as : Connections : drilled flanges PN 10 Maximum working temperature 65°C P Maximum working pressure 10 bar Highly reliable - Maximum accessibility High performance materials M/M T UPSTREAM, a stop valve and strainer ; DOWNSTREAM, a stop valve. Valve casing, cover : epoxy-coated (int/ext) cast iron Check valves : stainless steel...

SET OF PROTECTION WITH OR WITHOUT SUPPORT RAIL DISCORAILS General characteristics : BA BACKFLOW PREVENTERS The set is composed by : • a backflow preventer type BA 2760, • 2 isolating valves type VABS, V3000 , • and a filter type Y222P Without support With support TECHNICAL INFORMATION TECHNICAL INFORMATION DISCORAILS without SUPPORT rail DISCORAILS with SUPPORT rail Weight DN A B C D E F Ref. mm mm mm mm mm mm mm kg Weight DN C D E F Ref. mm mm mm mm mm kg 149B22259 1/2 149B21060 3/4 149B21081 1 149B21082 11/4 149B21083 11/2 149B21084 2 149B97397 1/2 90 149B95098 3/4 70 149B95099 1 70 149B95100...

MAINTENANCE OF BA BACKFLOW PREVENTERS Control kits for maintenance of BA backflow preventers List of french organism for certification In accordance with antipollution standard and hygiene regulations, BA backflow preventers must undergo an annual performance check for which the user is responsible. For this purpose Socla proposes a maintenance kits allowing these periodic checks to be made. Organisms which certificate the maintenance backflow preventers : AFORTECH 10 rue du Débarcadère - 75017 PARIS Tél : 01 40 55 14 14 PRO FORM TECH 3 rue Réaumur - 77380 COMBS LA VILLE Tél : 01 60 18 91 98...