Silencers/reclassifiers, Ports: 1/2 to 1, Sound attenuation data – Ross Controls SILENCER_RECLASSIFIER User Manual
Page 2: Typical installation in a valve-cylinder circuit
30
© 2012,
ROSS CONTROLS.
All Rights Reserved.
0
2
0
70
dBa
120
SOUND PRESSURE LEVEL
IN SLOW RESPONS
E
scfm
FLO W
l/ s 0
10
1/2 Model Sound Attenuation
0
0
40
60
80
100
120
20
30
40
50
80
90
100
11 0
1/2” Open Port
(36” distance)
5055B4009
(36” distance)
0
2
0
70
dBa
120
SOUND PRESSURE LEVEL
IN SLOW RESPONS
E
scfm
FLO W
l/ s 0
10
1 Inch Model Sound Attenuation
3 ft from exhaust 10 ft from exhaust
0
0
40
60
80
100
120
20
30
40
50
80
90
100
11 0
1” x 14” Open Pipe
5055B6009
SOUND ATTENUATION DATA
Constant-flow tests were conducted in a 14’ x 22’ room with a 14’ ceiling. Sound pressure levels
were recorded using a B & K precision impulse sound meter (model 22045), a 1-inch microphone
(DB0375), a flexible extension rod (UA0196), and a random incidence corrector (UA0055).
Test system as mounted on the 14-foot wall with exhaust port 4 feet from the 14-foot wall.
Air Cylinder
1/8” Drain Line
Air Supply
Pneumatic
Valve
Valve
Exhaust
Typical Installation In A
Valve-Cylinder Circuit
SILENCERS/RECLASSIFIERS
Ports: 1/2 to 1
0
2
0
0
2
4
6
8
psi
10
BACK PRESSURE
0
0.14
0.28
0.42
0.56
bar
0.70
scfm
FLOW
l/ s 0
10
1/2
Back Pressure Performance
0
0
0
scfm
FLOW
l/ s 0
40
60
80
100
3/4 & 1
120
20
30
40
50
On 1/2 models effluent
re-entrainment may occur
at flows over 70 scfm (33.0 l/s).
FLOW CHART