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Silvent 703 L

SILVENT 703 L is a stainless steel Laval nozzle. Compressed air is optimally used in this air nozzle, which introduced a whole new dimension to blowing technology. The effect 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 core stream in the 703 L is generated by a Laval nozzle. The design of the nozzle converts all of the energy stored in the compressed air into kinetic energy without permitting the air jet to expand laterally after it has passed through the nozzle. Because of the protective sheath of air, the surrounding air does not slow down the core stream, which can be used to full effect. The gas flow prevents turbulence, thereby lowering noise levels.
Noise reduction 69%
Air/cost savings 49%

Specifications

SI units US units  
Blowing force10.6 N2.3 lbs
Air consumption60.0 Nm³/h35.3 scfm
Sound level91 dB(A)
Blowing patternLaval
ConnectionG 1/2" 1/2"-14 NPT
Connection typeFemale
Dimensions 23x33 mm 0.91x1.30 inch
MaterialStainless steel
Weight0.050 kg0.110 lbs
Max temp400 °C752 °F
Max operating pressure1.0 MPa143.0 psi

Benefits

Replace open pipe8 mm5/16 inch
Noise reduction [dB(A)]17 dB(A)69 %
Air/cost savings [Nm³/h]58 Nm³/h49 %
Meet the EU Machine directivesYes

Blowing properties at different pressures

SI units (kPa)2004006008001000
Blowing force (N)4.38.213.0217.221.7
Air consumption (Nm³/h)27.048.370.193.0114.9
Sound level (dB(A))87.890.092.895.297.2
US units (psi)406080100120
Blowing force (oz)20.831.842.753.064.2
Air consumption (scfm)21.230.240.148.657.6
Sound level (dB(A))88.590.892.293.895.6

Air cone patterns and velocity distribution

SI units (mm)50100200300400500
Blowing pattern (ø)95140190235280330
Velocity (m/s)251201101745348
US units (inch)248121620
Blowing pattern (ø)3.745.517.489.2511.0212.99
Velocity (ft/s)823659331243173157

Blowing pattern

100 (4")
200 (8")
300 (12")
140 (5.51")
190 (7.48")
235 (9.3")