part number:	281ZH0321
A/F:	27
connection thread:	G3/8
connection:	G3/8
flow rate air [Nl/min]:	1450
operating pressure max. [bar]:	18

Air supply is immediately shut off when volume flow exceeds a
specific value. The maximum admissible flow is factory-set in
such a way that a standard application of pneumatic equipment
is ensured. Pressure drop amounts to 0.05 to 0.3 bar. In the
case of failure, the hose rupture valve blows off through a small
nozzle. After repairing the hose break, the hose rupture valve can
be set to zero again.

EN_ISO_4414-11.2010: According to EN ISO 4414-11.2010 the hose
rupture valve protects individuals, systems and machines from injuries
or damages caused by lashing hose lines in the event of hose breaks.

Function: The air passes the piston and continues through the seat.
The air stream is slowed down by means of lengthwise grooves on the
piston surface. When the volume flow is too high, the air cannot pass
the piston quickly enough, thus the piston will be pressed against the
spring. If the maximum admissible flow is exceeded, e.g. when the hose
suddenly breaks, the air supply will automatically be shut off.

Supply_pressure: max. 18 bar

Temperature_range:
-20 °C to 80 °C / -4 °F to 176 °F at G1/4 to G1/2,
up to 120 °C / 248 °F at G3/4 to G2

Body: aluminium, optionally stainless steel
Elastomer: NBR/Buna-N
Inner_valve: aluminium and plastic

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