Electrical supply filtering devices

Air admittance valves for use in the drainage systems of buildings; Air valves for steam heating installations; Automatic temperature regulators (valves) for central heating radiators; Ball segment valves; Ball valves; Control devices (thermostatic valves) for heating installations; Control units (thermostatic valves) for heating installations; Float valves (ball cocks); Heat regulating devices (valves) being parts of heating installations; Heat regulators (valves) being parts of heating installations; Instruments for temperature control in central heating installations (thermostatic valves); Level control valves; Level controlling valves being parts for sanitary installations; Level controlling valves in tanks; Level regulating valves (other than parts of machines); Liquid level control apparatus (valves); Mechanisms for controlling fluid level in tanks (valves); Mixing valves (faucets); Mixing valves (faucets) for basins; Mixing valves (faucets) for sinks; Pressure relief valves (safety apparatus) for gas apparatus; Pressure relief valves (safety apparatus) for gas pipes; Pressure relief valves (safety apparatus) for water apparatus; Pressure relief valves (safety apparatus) for water pipes; Radiator valves (thermostatic); Regulating valves (level controlling in tanks); Regulators (valves) for level controlling in tanks; Safety valves for gas apparatus; Safety valves for gas pipes; Safety valves for water apparatus; Safety valves for water pipes; Shower mixing valves; Shower valves; Solenoid controls for automatically operating valves (parts of heating installations); Stop valves being safety apparatus for gas apparatus; Stop valves being safety apparatus for gas pipes; Stop valves being safety apparatus for water apparatus; Stop valves being safety apparatus for water pipes; Stop valves for regulating gas; Stop valves for regulating water; Temperature control apparatus (thermostats, other than valves) for central heating installations; Temperature control apparatus (valves) for central heating radiators; Temperature control valves (parts of central heating installations); Temperature control valves (parts of central heating radiators); Temperature control valves (parts of water supply installations); Temperature controllers (valves) for central heating radiators; Temperature controlling apparatus (valves) for central heating radiators; Temperature sensitive controls for automatically operating valves (parts of heating installations); Thermal controls (valves) for central heating radiators; Thermostatic control valves for central heating radiators; Thermostatic valves (parts of heating installations); Valves (faucets) being parts for sanitary installations; Valves (taps) being parts for sanitary installations; Valves for controlling levels in tanks; Water control valves (level controlling) in cisterns; Water control valves for taps (faucets); Water inlets (level controlling valves) being parts of sanitary installations; Water level regulators (valves) being parts of sanitary installations; Water outlets (valves) being parts of sanitary installations; Water regulating valves (faucets) being parts of sanitary installations; Water regulating valves (regulating accessories); Water regulating valves (safety accessories); Water regulating valves (taps) being parts of sanitary installations