5 Plumbing and Water Treatment Quick connect couplings are also used in the area of on-board toilet systems and water treatment in mobile installations. A special system has been developed in the area of vacuum toilets. • Development of a complete system: Quick Couplings are jointly responsible for filling the water tank and bring apply pressure to the toilet in the flushing process so that the water can be flushed out accordingly – until the purge valve is opened. • Use of non-corroding coupling systems. Toilet Systems, Water Treatment and Sprinkler Systems Hydraulic couplings are essential for coupling and uncoupling attachments on rail and track vehicles. From railway construction machines to winter and summer equipment (e.g. snow plough, snow blower, mulcher etc.), almost all equipment can therefore be changed quickly and easily. • Flat-face systems guarantee protection of the environment and of the hydraulic circuit. • Quick and easy assembly. • No freezing of the unlocking sleeve in winter. • Pressure eliminator allows coupling even with residual or dynamic pressure. The special valve structure automatically relieves the pressure in the coupling element when coupling. • Tilt control of rail vehicles. Hydraulic Applications For filling and replacing battery fluid, Parker HPCE has developed a special coupling system for the area of rail vehicles, which is used both in initial fitting and in maintenance. • Extremely light due to material selection of aluminium. • Special seals that withstand distilled water long-term. • Quick coupling systems with dry-break locking system allows clean handling and protec- tion of the surroundings. Battery Systems Other Applications To this day, pneumatics remains an important element in rail vehicles. Coupling systems from Parker HPCE are used in many applications for connecting compressed air components: • In purely pneumatic door drives. • For folding steps, sliding steps and ramps with pneumatic drives. • In sanding systems. • In pneumatic pantograph systems. Pneumatic Applications
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