WEH® Defueling Nozzle TK21 CNG for discharging buses and trucks through the filling receptacle


Defueling Nozzle for discharging CNG fuel tanks of buses and trucks through the filling receptacle

Buses and trucks running on natural gas have to be serviced and checked regularly, a process involving the discharge of their pressurized fuel tanks.

The WEH® TK21 CNG defueling nozzle has been designed for this specific purpose.
The defueling nozzle is simply engaged onto the receptacle of the bus/truck and the knurled spindle fully turned until the receptacle is fully open. Discharge can now take place through the lateral media discharge vent.

Nominal bore (DN)
8 mm
Pressure range
PS = 350 bar (5,000 psi)
Temperature range
-40 °C up to +85 °C
Corrosion resistant
Sealing material
Natural gas compatible
With plastic thermal protection and opening spindle
Approx. 2.1 kg (4.63 lbs.)
Part no.
Marketing Features
Discharge through the filling receptacle,Knurled spindle actuation,No additional locking device required,Only suitable for WEH® TN5 CNG receptacles (without a filter),Plastic thermal protection

Defueling Nozzle for discharging of CNG fuel tanks of buses and trucks through the filling receptacle. Only to be used with WEH® TN5 CNG receptacles without a filter. Operation only by specially trained personnel. Not for self-service operation!

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