SIL.209L is part of a new generation of patented Laval nozzles. It is a refinement of Silvent’s 208 and 209 nozzle series and represents an entirely new phase in blowing technology. The effect is achieved by surrounding a core jet moving at supersonic speed with a protective sheath of air running parallel to the direction of the central stream. There is a mix of divergent slots and holes around the Laval orifice that generates a quiet, powerful and laminar air flow. This nozzle provides extremely efficient blowing that utilizes your compressed air optimally. Fully complies with OSHA safety standards and the noise limitations of the EU Machine Directive. Specifications SI units SPECIAL ORDER PLEASE CALL US units Blowing force 3.4 N 12.0 oz Air consumption 17 Nm³/h 10.0 scfm Sound level 78 dB(A) Blowing pattern Laval Connection G 1/4" 1/4"-18 NPT Connection type Male Dimensions 19x44 mm 0.75x1.73 inch Material Zinc Weight 0.049 kg 0.108 lbs Max temp 70 °C 158 °F Max operating pressure 1.0 MPa 143.0 psi Benefits Replace open pipe 4 mm 5/32 inch Noise reduction [dB(A)] 17 dB(A) 69 % Air/cost savings [Nm³/h] 13 Nm³/h 43 scfm Meet the EU Machine directives Yes Blowing properties at different pressures SI units (kPa) 200 400 600 800 1000 Blowing force (N) 1.4 2.7 4.0 5.3 6.8 Air consumption (Nm³/h) 8.5 13.8 20.1 26.4 32.2 Sound level (dB(A)) 70.0 75.5 78.7 83.0 86.0 US units (psi) 40 60 80 100 120 Blowing force (oz) 6.9 10.1 13.0 16.3 20.0 Air consumption (scfm) 6.5 8.4 11.0 13.6 16.0 Sound level (dB(A)) 72.5 75.8 78.1 81.6 84.3 Air cone patterns and velocity distribution SI units (mm) 50 100 200 300 400 500 Blowing pattern (ø) 40 65 115 165 215 265 Velocity (m/s) 253 206 110 79 57 52 US units (inch) 2 4 8 12 16 20 Blowing pattern (ø) 1.57 2.56 4.53 6.50 8.46 10.43 Velocity (ft/s) 830 676 361 259 187 171
