Defueling or emptying CNG cylinders bundles (e.g. for trailers) is a frequent challenge for service technicians. Service staff must be sufficiently trained to ensure that the procedure is performed properly and safely. When it comes to emptying CNG tanks, a distinction is made between emergency defueling and defueling for maintenance purposes, such as for repairs to the natural gas tank.
The defueling nozzle TK23 CNG by WEH was designed for this particular purpose and it is ideal for emptying cylinder bundles, i.e. for discharging CNG from cylinder bundles. All pressure and fuel tanks must be emptied for any maintenance measures and inspection of natural gas vehicles. Defueling nozzles by WEH® have proven to be the ideal tool for this purpose.
The nozzles are equipped with push-pull actuation and the unique WEH® Jaw locking mechanism for extra-easy operation. The nozzle must be attached to the receptacle and the sliding sleeve must be pushed to the front to create a pressure-tight connection. Now the shutoff device needs to be opened behind the receptacle and defueling can begin. The plastic thermal covering protects service technicians’ hands against frostbite.
Moreover, the defueling nozzles TK6 CNG for passenger cars and TK21 CNG for buses and trucks are available for defueling CNG tanks within vehicles. Defueling takes place via the vehicle’s fueling connection. The defueling nozzle is attached to the receptacle, the opening spindle is turned until it stops and the receptacle is pushed open. Now the fuel tanks can be emptied via the medium outlet at the side. For more information, please visit the company’s website www.weh.com.