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Silvent 808

SILVENT 808: an energy-efficient Laval nozzle that is part of Silvent’s new “SILVENT SOFT™” series. The air nozzle is specially made in EPDM rubber to minimize the risk of scratches, such as on the surface of tools. The product meets the unique combination of demands for a scratch-free surface and high blowing force by applying Silvent’s patented Laval technology. Silvent Laval technology is achieved by surrounding a core of air traveling at supersonic speed with a protective sheath of air moving parallel to the central air jet. The SILVENT SOFT 808 is ideal for all industries in which equipment and products are handled that cannot be damaged during compressed air blowing.
Noise reduction 75%
Air/cost savings 52%


SI units US units  
Blowing force24.0 N5.3 lbs
Air consumption128.0 Nm³/h75.3 scfm
Sound level96.2 dB(A)
Blowing patternLaval
ConnectionG 1/2" 1/2"-14 NPT
Connection typeFemale
DimensionsØ35 x 44 mmØ1.38 x 1.72 inch
Weight0.053 kg0.117 lbs
Max temp70 °C158 °F
Max operating pressure1.0 MPa143.0 psi


Replace open pipe12 mm1/2 inch
Noise reduction [dB(A)]20 dB(A)75 %
Air/cost savings [Nm³/h]138 Nm³/h52 %
Meet the EU Machine directivesYes

Blowing properties at different pressures

SI units (kPa)2004006008001000
Blowing force (N)9.218.829.239.049.8
Air consumption (Nm³/h)57.4102.5154.0204.0255.0
Sound level (dB(A))86.593.898.0100.6102.3
US units (psi)406080100120
Blowing force (oz)44.170.697.1121.8144.7
Air consumption (scfm)41.863.685.4104.8125.5
Sound level (dB(A))89.794.397.499.5101.0

Air cone patterns and velocity distribution

SI units (mm)50100200300400500
Blowing pattern (ø)92137198232278327
Velocity (m/s)252201103805752
US units (inch)248121620
Blowing pattern (ø)3.595.347.729.0510.8412.75
Velocity (ft/s)827659338262187171

Blowing pattern

100 (4")
200 (8")
300 (12")
137 (5.34")
198 (7.72")
232 (9.1")