Page 50 - Highlights 2013

Angle seat valve VZXF
Negligible flow resistance, no blockages:
a clear run for your media.
The 2/2-way valve controls flows of
substances such as granulates, liquids
containing solid particles and highly viscous
and abrasive media. The housing has high
corrosion resistance with CRC4. Maintenance
is quick and convenient thanks to easily
replaceable sealing cartridges – no special
tools required.
• Modular interchangeable component parts
• Clean design for machine cleaning
• Direct air supply connection –
no drive required
• Diaphragm material NBR, and new: EPDM
Proportional media valve
VZQA
Incredibly sturdy and resistant –
a valve you can rely on.
The universal VZXF for process automation is
ideal for controlling gaseous or liquid media
flows in closed or open circuits, whether
heavily contaminated media up to max.
22 mm²/s viscosity, highly viscous media
up to 600 mm²/s or steam.
• Extremely heat-resistant, stainless steel
design
• Closes reliably when pressure drops thanks
to N/C function
• Gas “with the media flow”, liquids “closing
against the media flow”
Optimise your engineering, purchasing and
logistics.
And increase your process reliability, with
the pre-assembled VZBA. Uniform design,
optimised torque curve and nominal
pressure, accurate mounting for cavitation-
free opening without offset. Operationally
tested, with just one part number. And full
ATEX compliance, including for the new VZBA
for ATEX zone 1, 21 and 2, 22.
• Many variants thanks to the rack-and-
pinion or scotch yoke design
• Single-acting or double-acting
• Optimised design reduces the need for
adapter accessories
• Fast installation
• Complete documentation available on the
support portal www.festo.com
Ball valve drive units with
2/3-way ball valves VZBA
50 Process automation and fluid technology