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Silvent 404 L

SILVENT 404 L: for a broader air cone and high blowing force. Perfect for ejection of parts from punch presses and molds. Drying, cleaning, transport and cooling are other areas of application for this product. Meets OSHA safety standards and the noise limitations of the EU Machine Directive.
Noise reduction 81%
Air/cost savings 42%


SI units US units  
Blowing force13.6 N3.0 lbs
Air consumption68 Nm³/h40.0 scfm
Sound level84 dB(A)
Blowing patternWide
ConnectionG 3/8" 3/8"-18 NPT
Connection typeFemale
DimensionsØ55x60.7 mmØ2.17x2.39 inch
Weight0.292 kg0.644 lbs
Max temp70 °C158 °F
Max operating pressure1.0 MPa143.0 psi


Replace open pipe8 mm5/16 inch
Noise reduction [dB(A)]24 dB(A)81 %
Air/cost savings [Nm³/h]50 Nm³/h42 %
Meet the EU Machine directivesYes

Blowing properties at different pressures

SI units (kPa)2004006008001000
Blowing force (N)5.610.816.421.927.0
Air consumption (Nm³/h)
Sound level (dB(A))76.081.584.789.092.0
US units (psi)406080100120
Blowing force (oz)27.640.453.467.479.4
Air consumption (scfm)27.734.744.253.662.2
Sound level (dB(A))78.781.884.087.590.2

Air cone patterns and velocity distribution

SI units (mm)50100200300400500
Blowing pattern (ø)80110165220280340
Velocity (m/s)250200101755348
US units (inch)248121620
Blowing pattern (ø)3.154.336.508.6611.0213.39
Velocity (ft/s)820656331246174157

Blowing pattern

100 (4")
200 (8")
300 (12")
110 (4.33")
165 (6.5")
220 (8.7")