WEH® Emergency Fueling Set TZ21 CNG

Part no.
C1-126021
€0.00

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 fueling 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 fueling set.

The TK6 CNG defueling nozzle is placed onto the receptacle of the service vehicle. The TK4 CNG fueling 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 defueling 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 fueling nozzle the natural gas is lead into the empty tank.

After refueling the ball valve at the bypass of the service vehicle is closed. The opening spindle of the TK6 CNG defueling 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 fueling set. The TK6 CNG defueling nozzle and the TK4 CNG fueling nozzle can be removed. Now the monofuelled CNG vehicle can drive away with a refuelled CNG tank.

Technical Data
Nominal bore (DN)6 mm
Pressure rangeP30 acc. to ANSI NGV1 / B200 acc. to ISO 14469
PN = 200 bar (3,000 psi) | PS = 300 bar
Temperature range-40 °C up to +85 °C
DesignTK4 CNG without gas recirculation,
TK6 CNG with opening spindle and integrated venting valve,
hose: length 5 m
MaterialCorrosion resistant
Sealing MaterialNatural gas resistant
Color coded sliding sleeve (200 bar / 3000 psi black , 250 bar / 3600 psi yellow), Consisting of WEH® TK4 CNG Fueling nozzle; WEH® TK6 CNG service nozzle with integrated venting valve; hose and fittings, For bi-fuelled service vehicles in order to refuel a
Emergency fueling set for refueling cars from a service vehicle. Only to be used by specially trained service personnel. Not for self-service operation!
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