WEH® Fueling Nozzle TK20-S2 H₂ 35 MPa
The WEH® TK20-S2 H2 35 MPa Fueling nozzle was developed for fast filling of cars with compressed, gaseous hydrogen (CGH2). Through to the larger nominal width, refueling with 90 g/s or higher is possible. In addition, this filling coupling is designed for a maximum operating pressure of 48.125 MPa (= MAWP according to ISO 19880-1:2020).
In addition, the new TK20-S2 H2 35 MPa has the same tried and tested features as the already well-known TK17 H2 35 MPa. The fueling nozzle is additionally equipped with a purging line that allows purging with nitrogen during and after refueling process. This can prevent ingress of moisture and the formation of ice crystals during filling with precooled hydrogen.
The WEH® TK20-S2 H2 35 MPa offers optimum safety for the operator thanks to the locking mechanism. The Fueling nozzle remains connected to the receptacle until the locking mechanism is released by the operator.
Max. allowable operating pressure PS | MAWP = 48.125 MPa according to ISO 17268 (PS = 481.25 bar) |
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Nominal Pressure PN | 35 MPa |
Temperature Range Media | -40 °C up to +85 °C |
Temperature Range Ambient | -40 °C up to +85 °C |
Medium | Hydrogen |
Design | With plastic thermal protection Optimized impact protection Integrated purging line Hand grip with magnet |
Material | Corrosion resistant |
Sealing Material | Hydrogen resistant |
Nozzle Type | Type C acc. to SAE J2600:2015 and previous resp. ISO 17268:2020 and previous |
Coding | H35 according to ISO 17268-1:2025 |
Weight | Approx. 2.65 kg |
Purging line Outer / inner diameter | 6/4 mm |
Purging Medium | Nitrogen |
Purging Temperature | -40 °C (preferably -20 °C) to +85 °C |
Purging Flow Rate | 500 Nl/h at max. 12 bar purging pressure |
Conformity / Tests / Approvals | Design validation based on ISO 17268-1:2025 |
- Compatible with pressure stage H35 according to ISO 17268-1:2025 (see table below)
- Easy operation
- Hand grip with magnet
- Integrated purging line for nitrogen flushing
- Max. allowable operating pressure 48.125 MPa (MAWP according to ISO 19880-1:2020)
- High flow rate
- Optimized impact protection
- Plastic thermal protection
- Type C nozzle acc. to SAE J2600 resp. ISO 17268
- WEH® EASY-TURN swivel joint approx. 250°
Fueling nozzle for hydrogen fast filling of cars at self-service fueling stations.

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