WEH® Fueling Nozzle TK20-S2 H₂ 35 MPa ENR
The WEH® TK20-S2 H2 35 MPa ENR Fueling nozzle with exchangeable data interface (ENR = exchangeable nozzle receiver) was developed for fast filling of cars with compressed, gaseous hydrogen (CGH2 ). Through to the larger nominal width, refueling in medium flow 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 ENR has the same tried and tested features as the already well-known TK17 H2 35 MPa ENR. 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 ENR 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 to protect the data interface Exchangeable data interface acc. to SAE J2799 Integrated purging line Hand grip with mag |
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 | IR data interface: SAE J2799 and ATEX, NEC, KTL, CCC Design validation based on ISO 17268-1:2025 |
- Easy operation
- Single-hand operation
- Exchangeable data interface (ENR)
- Hand grip with magnet
- Type C nozzle acc. to SAE J2600 resp. ISO 17268
- Plastic thermal protection
- High flow rate
- WEH® EASY-TURN swivel joint approx. 250°
- Integrated purging line for nitrogen flushing
- Optimized impact protection to protect the data interface
- Max. allowable operating pressure 48.125 MPa (MAWP according to ISO 19880-1:2020)
- Compatible with pressure stage H35 according to ISO 17268-1:2025 (see table below)
Fueling nozzle for hydrogen fast filling of cars at self-service fueling stations.

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