Measuring, regulating, control and monitoring devices; signal transmitters; rupture discs for controlling and/or monitoring and/or protecting against high and/or low pressure and/or vacuum conditions; autonomous protective systems, in particular flame traps, flame barriers and flame arresters, for extinction of combustions, included in this class; flameproof equipment in the form of explosion, detonation and/or durable fire protection means; safety equipment for controlling and monitoring and/or protecting against high and/or low pressure and/or vacuum conditions; solenoid valves, in particular being devices for protecting dust-conducting installations against dust explosions; all the aforesaid goods included in this class.

Maintenance of pressure relief valves and decoupling valves of metal (other than parts of machines), and solenoid valves, in particular being devices for protecting dust-conducting installations against dust explosions; maintenance of pipelines of metal; maintenance of rupture discs; maintenance of parts of machines for discharging explosive pressure, in particular rupture discs; maintenance of equipment for flameless pressure relief; maintenance of flame traps, in particular flame barriers and flame arresters; maintenance of measuring, regulating, control and monitoring devices; maintenance of signal transmitters; maintenance of rupture discs for controlling and/or monitoring and/or protecting against high and/or low pressure and/or vacuum conditions; maintenance of flameproof equipment in the form of explosion, detonation and/or durable fire protection means; maintenance of safety equipment for controlling and monitoring and/or protecting against high and/or low pressure and/or vacuum conditions; repair of pressure relief valves and decoupling valves of metal (other than parts of machines), and solenoid valves, in particular being devices for protecting dust-conducting installations against dust explosions; repair of pipelines of metal; repair of rupture discs; repair of parts of machines for discharging explosive pressure, in particular rupture discs; repair of equipment for flameless pressure relief; repair of flame traps, in particular flame barriers and flame arresters; repair of measuring, regulating, control and monitoring devices; repair of signal transmitters; repair of rupture discs for controlling and/or monitoring and/or protecting against high and/or low pressure and/or vacuum conditions; repair of flameproof equipment in the form of explosion, detonation and/or durable fire protection means; repair of safety equipment for controlling and monitoring and/or protecting against high and/or low pressure and/or vacuum conditions.