Page 132 - ParkerBrassCatalog2010

Parker Hannifn Corporation
Parker Brass Products Division
Otsego, Michigan
C28
C
Catalog 3501E Metric Pressure Reducing Valves
Alignment between the level of saving shown
by the indicator and that shown by the marking
yellow : maximum saving
orange : high saving
red : moderate saving
Energy
setting Pi - Pr
0
2
4
6 bar
page 10
Pr Pr Pr
Time
Pr reduced
Pressure
Pressure saving
saving
applied pressure Pr
back pressure
Pi system
start of
cylinder stroke
end of
cylinder stroke
reversal of
control valve
courbe page 10
Prestoreduce
Pressure reduction fttings
Principle
This function ftting is manually preset
to provide the cylinder with optimum air
pressure. This reduces the air consumption of
the cylinder generating energy savings. This
ftting is particularly suitable for cylinders used
in cutting, pressing or gripping operations.
• System pressure (Pi) is reduced by a
spring-loaded valve which can be calibrated
by the set screw.
• The greater the reduction between inlet
and outlet pressure the larger the energy
savings.
• The coloured indicator shows the energy
savings achieved.
• The purge vent allows rapid exhaust of air
in emergencies.
• Adjustment can be made with an Allen key
or manual ratchet control.
• An anti-tamper plug can be ftted after the
pressure has been set.
LAIRETAMYDOB TLOB
YLBMESSA
LAIRETAM
TLOB
DAERHT
GNILAES
ECIVED SROTANIMRET GNIKROW
.PMET
GNIKROW
ERUSSERP NI-HSUP
NOISREV
DAERHT
NOISREV
yollAcniZ lekciNssarB
detalP
ssarB PPSB8/1
PPSB4/1
PPSB8/3
PPSB2/1
nolyN
rehsaW
mm01ot6
nI-hsuP
2/1ot8/1
PPSB
elameF
daerhT
0morF° ot
051+°F
ISP001
Technical features
Energy saving indicator
Adjustable spring
Poppet
valve
Check valve
Pr To the
cylinder
Power valve
Rapid
exhaust vent
Pi
page 10
Return stroke End of stroke Out stroke