11
Combinations of pressure reducing valves and filters with or
without pressure reducer valves, with backwashing or without
backwashing; connecting flanges for fittings and filters;
backwashing systems for filters; filters for installations;
devices for water treatment against limestone and for the
control of water losses in domestic installations; pressure
reducers for the control of the operating pressure in
heating or water installations, also in industrial use;
thermostatic mixing valve for the control of the hot water
temperature; pressure relief and safety valves for liquid
systems, solar heating installations, closed potable water
heaters and closed circuit water heating systems; boiler
combination valve for removal of entrained air; water level
cut-off switches; automatic air vent systems; thermal safety
devices; draft regulators for heating systems with solid
fuel; filling assemblies for heating installations;
differential pressure control systems; filters for drinking
water; taps (cocks, spigots) (Am faucets) for pipes; heating
boilers; heating installations; heating installations
(water); regulating and safety accessories for water
apparatus; regulating accessories for water or gas apparatus
and pipes; water purification installations; safety
accessories for water or gas apparatus and pipes; feeding
apparatus for heating boilers; water sterilizers;
thermostatic valves (parts of heating installations); water
heaters; water filtering apparatus; water distribution
installations
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