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Silvent 801

SILVENT 801 is 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 801 is ideal for all industries in which equipment and products are handled that cannot be damaged during compressed air blowing.
Noise reduction 71%
Air/cost savings 51%


SI units US units  
Blowing force4.0 N14.1 oz
Air consumption23 Nm³/h13.5 scfm
Sound level81.1 dB(A)
Blowing patternLaval
ConnectionG 1/4" 1/4"-18 NPT
Connection typeFemale
DimensionsØ26 x 32 mmØ1.00 x 1.26 inch
Weight0.022 kg0.049 lbs
Max temp70 °C158 °F
Max operating pressure1.0 MPa143.0 psi


Replace open pipe5 mm3/16 inch
Noise reduction [dB(A)]18 dB(A)71 %
Air/cost savings [Nm³/h]24 Nm³/h51 %
Meet the EU Machine directivesYes

Blowing properties at different pressures

SI units (kPa)2004006008001000
Blowing force (N)
Air consumption (Nm³/h)9.718.026.134.944.1
Sound level (dB(A))71.678.483.186.088.0
US units (psi)406080100120
Blowing force (oz)7.111.615.920.124.7
Air consumption (scfm)7.411.214.718.321.8
Sound level (dB(A))75.078.681.583.985.7

Air cone patterns and velocity distribution

SI units (mm)50100200300400500
Blowing pattern (ø)4065115165215265
Velocity (m/s)24019398755348
US units (inch)248121620
Blowing pattern (ø)1.572.564.536.508.4610.43
Velocity (ft/s)787633321246173157

Blowing pattern

100 (4")
200 (8")
300 (12")
65 (2.56")
115 (4.53")
165 (6.5")