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WEH® Emergency Fuelling Set TZ21 CNG for refuelling cars from a service vehicle, hose 3 m, 200 bar

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  • For bi-fuelled service vehicles in order to refuel a broken down CNG car
  • The set consists of:
    - type TK4 CNG fuelling nozzle (C1-15459) without gas recirculation
    - type TK6 CNG defuelling nozzle (C1-111166) with opening spindle and integrated venting valve
    - hose, length 3 m
    - Fittings
  • Only suitable for WEH® TN1 CNG receptacles (without a filter)
Description
WEH® Emergency Fuelling Set TZ21 CNG for refuelling cars from a service vehicle, hose 3 m, 200 bar
A bi-fuelled (CNG and petrol) vehicle is equipped with a bypass with ball valve. Its manual operation circumvents the internal check valve in front of the pressure vessel (natural gas tank). This subsequent conversion can be effected without problems by any vehicle converter. The CNG tank of the service vehicle will be refuelled at the CNG fuelling station. The service vehicle running for this purpose on petrol, drives to the broken down mono-fuelled vehicle.

The broken down vehicle can be refuelled locally using the WEH® TZ21 CNG emergency fuelling set.

The TK6 CNG defuelling nozzle is placed onto the receptacle of the service vehicle. The TK4 CNG fuelling nozzle is connected to the broken down vehicle. Both vehicles are connected with a hose to each other. By rotating the opening spindle at the TK6 CNG defuelling nozzle the check valve of the WEH® TN1 CNG receptacle opens. The ball valve at the bypass of the service vehicle is opened slowly. At the TK4 CNG fuelling nozzle the natural gas is lead into the empty tank.

After refuelling the ball valve at the bypass of the service vehicle is closed. The opening spindle of the TK6 CNG defuelling nozzle is rotated back and the check valve of the WEH® TN1 CNG receptacle is closed. Then the integrated venting valve at the TK6 CNG vents the TZ21 CNG emergency fuelling set. The TK6 CNG defuelling nozzle and the TK4 CNG fuelling nozzle can be removed. Now the monofuelled CNG vehicle can drive away with a refuelled CNG tank.
Features
  • For bi-fuelled service vehicles in order to refuel a broken down CNG car
  • The set consists of:
    - type TK4 CNG fuelling nozzle (C1-15459) without gas recirculation
    - type TK6 CNG defuelling nozzle (C1-111166) with opening spindle and integrated venting valve
    - hose, length 3 m
    - Fittings
  • Only suitable for WEH® TN1 CNG receptacles (without a filter)
Technical Data
Nominal bore (DN) 6 mm
Pressure range B200 acc. to ISO 14469-1 (P30 acc. to ANSI NGV1)
PN = 200 bar (3,000 psi) | PS = 300 bar | PT = 450 bar
Temperature range On request
Material Corrosion resistant
Sealing material Natural gas compatible
Design TK4 CNG without gas recirculation,
TK6 CNG with opening spindle and integrated venting valve,
hose: length 3 m
Conformity / Tests / Approvals PED 2014/68/EC (TK4 CNG, TK6 CNG)
Part No. C1-126020
Application
Emergency fuelling set for refuelling cars from a service vehicle. Only to be used by specially trained service personnel. Not for self-service operation!
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