This type of fitting to DIN 2353 ISO 8434-1 operates on the
metal seal principle. A double-sided cutting ring cuts into the pipe as the nut
is tightened to create a hermetic seal and engage with the 24° taper
body.
The
main advantage of this system is that there is no need for welding and it is
easy to service and disassemble without flaring the pipes or perform additional
machining.
The double cutting
surface reduces possible vibrations of the system and prevents the ring from slipping
off.
PEL
fittings are the medium/heavy-duty type for operating pressures of up to 250
bar.
