Buschjost Valves and systems for cleaning dust collectors Norgren Series 82870
Pneumatic controller
for dust filter valves
for controlling up to 20 filter pulse valves
with ATEX approval
Internal thread P = G 1?8 Z = G 1?4
Operating pressure 2 to 8 bar
Description (standard model)
The device controls a maximum of 20 filter pulse valves and replaces the
solenoid control unit. The pulse valves are connected to the pressure cham-
ber of the controller by small bore airlines.The wiper arm assembly of the
controller is operated by a pneumatic ratchet drive.It pauses between valve
connections for a preset time which is adjustable by the user.The switching
time is also user adjustable by means of a throttle valve accessed after remo-
val of the bottom casing.During the switching time the wiper arm passes be-
neath a valve connection port and vents the pilot line to that particular valve.
The valve opens and remains open until the wiper arm moves on to the next
position. The pilot air is vented through the port marked ?R!° underneath the
manual override knob,which is marked to show the exact position of the wi-
per arm. The control section consists of a pneumatic timer for adjusting the
interval, throttle valve for adjusting the switching time and pneumatic ratchet
drive for the wiper arm assembly. The operating section consists of pressure
chamber,control ports and wiper arm.
Fluid (control section): filtered air ¨C ompressed air supply via conditioning
unit with a 5 to 10 |ìm filter, without oiler (for unpur-
fied compressed air we recommend an additional 50
to 75 |ìm primary filter.
Temperature range: 0 !aC to + 70 !aC, ¨C25 !aC to 70 or dry air
Interval: adjustable 2 to 200 s,set on about 10 s in
factory
Reproducibility: !à 5 %
Mounting position: optional
Material body: grey cast iron
Features Compact design Switching time and interval adjustable Fully pneumatic controller,suitable for robust operation Ideal for use in hazardous zones Kompakte Bauweise
Characteristic data
Standard models: Wiper arm (valve venting) operated by spring return in the cylinder
Operating
Part Number Number of con- Operating pressure
Operating pressure Weight
Control section
section Control
trol ports * min. (bar) max. (bar)
min. (bar) max. (bar) (kg)
Pressure port P
port Z
8287054.0000 10 G 1/8 2 8 G 1/4 0.5 8 7.8
8287154.0000 12 G 1/8 2 8 G 1/4 0.5 8 7.8
8287254.0000 14 G 1/8 2 8 G 1/4 0.5 8 7.8
8287354.0000 16 G 1/8 2 8 G 1/4 0.5 8 10.9
8287554.0000 20 G 1/8 2 8 G 1/4 0.5 8 10.9
* Control ports not required have to be sealed with a plug
Further Options (Valves) ATEX approval
XXXXX55.XXXX with positive control signal; x II 2 GD c II B T 85 !a
for pneumatically actuated valves.
x I M2 c T
= 55 !a
max.
Control pressure port !°R!° (G 1/4
operation as model XXXXX54.0000
On request Units with 18 control ports available
Part No. Number of control B C D E
ports (mm) (mm) (mm) (mm)
8287054.0000 10 215 118 170 150
8287154.0000 12 215 118 170 150
8287254.0000 14 215 118 170 150
8287354.0000 16 215 128 180 190
8287554.0000 20 215 128 180 190
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