Product informationThe 9641 backflow preventer is the robust stainless steel version designed for connection to standpipes and demanding applications.It reliably protects drinking water systems in accordance with DIN EN 1717 up to fluid category 4 and is particularly suitable for construction water supply, food processing plants or cleaning processes.The proven BA principle with three pressure zones ensures maximum safety, whilst the stainless steel design meets the highest standards of hygiene and corrosion resistance.The combination of efficiency, durability and compact design makes the 9641 the ideal solution for demanding applications.connection typesInternal pipe threadMale threadMore information please go link: Backflow preventer 9641 DN20 stainless steel for standpipe | GOETZE

Product informationThe 9640 backflow preventer in DN10 is the stainless steel version for applications with heightened aseptic requirements.It reliably protects drinking water systems against backflow, backpressure and back-sucking up to fluid category 4 in accordance with DIN EN 1717.Thanks to its compact design, the 9640 is particularly suitable for integrated systems in building technology. The proven BA principle with three pressure zones ensures maximum operational safety.The stainless steel version combines high corrosion resistance with aseptic safety, making it ideal for demanding applications.connection typesMale threadMore information please go link: Backflow preventer 9640 DN10 stainless steel – compact & aseptic | GOETZE

Product informationThe 9661 backflow preventer has been specially designed for connection to a ½-inch tap and offers a flexible solution for mobile and decentralised applications.It reliably protects drinking water systems in accordance with DIN EN 1717 up to fluid category 4 against backflow, backpressure and back-sucking.Typical applications include heating system top-ups, high-pressure cleaners and irrigation systems.Thanks to its lead-free material, low pressure drop and compact design, the 9661 is ideal for flexible use whilst ensuring high levels of operational safety.connection typesInternal pipe threadMale threadMore information please go link: Backflow preventer 9661 DN15 for tap | lead-free | GOETZE

Product informationThe 9660 backflow preventer is a compact safety device designed to protect drinking water systems in accordance with DIN EN 1717 up to fluid category 4.As a mini backflow preventer in DN10, it is particularly suitable for applications with limited installation space, such as heating system top-ups, dosing systems or commercial dishwashers.The operating principle is based on a three-zone pressure system with an inlet non-return valve, a drain valve and an outlet non-return valve (p1 > p2 > p3). This ensures reliable separation between drinking water and non-potable water.Thanks to lead-free materials, low pressure drop and a compact design, the 9660 meets the highest standards of hygiene, efficiency and integration.connection types Male threadMore information please go link: Backflow preventer 9660 DN10 – compact, lead-free, efficient | GOETZE