series HG breakaway

Non-destructive, pressure-balanced high pressure breakaway coupling for the transfer of gaseous hydrogen, for its use in hydrogen refueling stations.

Hydrogen gas: 350 NF / HF and  700 NF bar resp.  5,000  NF / HF and 10,000 NF psi technology

The breakaway couplings from WALTHER_PRÄZISION’s HG series disconnect fully automatically and non-destructively when a predetermined separation force is exceeded. Thanks to their flexible suspension design, almost any tear-off angle can be realised. The valves close immediately and automatically during emergency disconnection and thus reliably prevent the fluid from escaping from the separated pipe sections. After an emergency disconnection, the couplings can be reconnected immediately and without repair.

Types:

HG-008, available für 350 NF / HF and  700 NF bar resp.  5,000  NF / HF and 10,000 NF psi refueling variants

Nominal bore:

8 mm

Working pressures according to SAE J2600:

• NWP 350 bar (MOP 437,5 bar / MAWP 481,25 bar)
• NWP 700 bar (MOP 875 bar / MAWP 962,50 bar)

Media:

gaseous hydrogen at -40 °C

Material:

stainless steel 1.4404/1.4571 or similar; POM

Special features / Options:

• Non-destructive breakaway coupling (without shear bolt)
• Pressure-balanced design
• Large possible deflection due to stainless steel cable.
• Safe depressurisation after emergency disconnection thanks to simple venting process
• Quick recovery to operational readiness after emergency disconnection
• Available with ETL certificate (on separate request)