S I L E N C E R - S E R I E S   A A / S T

- For power vacuum ejectors

There is a hissing sound...

when compressed air exhausts. The silencer will help.
The exclusive "whisper silencer" is made of Nylon or aluminum and reduces the noise to an acceptable level.
The aluminum version is open and suitable for transport of solids and liquids.




Plastic PA version, closed, external thread
Order-No.
Noise level
[dB]
Dimensions
A
B
[mm]
C
[mm]
D
[mm]
E
[Ø mm]
F
[Ø mm]
AA2 58 Outside Ø 1/8" 5.8 24.6 27.4 9.91 15.5
AA4 62 Outside Ø 1/4" 8.1 32.0 35.3 11.94 19.6
AA6 70 Outside Ø 3/8" 10.4 44.2 47.2 15.75 24.4
Operating pressure: 5.5 bar · Operating temperature: -10 °C...+80 °C
ST.. External thread

 ST.. Internal thread


ST-2020

Aluminium (or plastic PA*) version, always open, external thread

Order-No.
Noise level
[dB]
Dimensions
A
B
[mm]
C
[mm]
D
[mm]
E
[Ømm]
F
[Ømm]
ST2* 68 Outside Ø 1/8" 7.6 16.0 25.4 5.1 16.0
ST4* 68 Outside Ø 1/4" 7.6 37.8 47.2 8.9 19.1
ST4A-2 72 Outside Ø 1/4" 9.4 55.4 65.0 12.7 25.4
ST6A 72 Outside Ø 3/8" 9.7 81.0 90.4 12.7 25.4
ST8A 74 Outside Ø 1/2" 9.7 81.0 90.4 12.7 25.4
ST8B 76 Outside Ø 1/2" 9.7 106.4 122.4 18.3 31.8
ST12C 80 Outside Ø 3/4" 12.7 157.0 176.0 31.8 50.8
ST16C 80 Ø 1" Outside 12.7 157.0 176.0 31.8 50.8
*) ST2, ST4 made of plastic PA
Operating pressure: 5.5 bar · Operating temperature: -10 °C...+80 °C

Plastic PA version, always open
Order-No.
Noise level

[dB]
Dimensions
A
B
[mm]
C
[mm]
D
[mm]
E
[Ømm]
F
[Ømm]
ST-2020 82 Ø 2" 17.8 310.6 328.4 56.1 87.9
Operating pressure: 5.5 bar · Operating temperature: -10 °C...+80 °C


Aluminium version, always open, internal thread

Order-No.
Noise level
l
[dB]
Dimensions
A
B
[mm]
C
[mm]
D
[mm]
E
[Ømm]
ST4AX 75 Inside Ø 1/4" 81.0 90.4 12.7 25.4
ST6BX 77 Inside Ø 3/8" 106.4 122.4 18.3 25.4
ST16FC 80 Inside Ø 1" 162.3 181.4 31.8 50.8
ST24FC 82 Inside Ø 1 1/2" 180.3 199.4 31.8 50.8
Operating pressure: 5.5 bar · Operating temperature: -10 °C...+80 °C

Alu/plastic PA version, closed, external thread

Order-No.
Noise level
[dB]
Dimensions
A
B
[mm]
C
[mm]
D
[mm]
E
[Ømm]
STAA4 58 Outside Ø 1/4" 7.6 74.6 SW12 19.6
Operating pressure: 5.5 bar · Operating temperature: -10 °C...+80 °C