Silencers U0 pages

ACCGSSONGS Silencers G 1/8 to G 1 and 1/8" to 1/2" NPT Silencer Diecast Al Type U-...-B U-...-B-NPT Silencers are used to reduce the noise at the outlet ports of valves. These slim, rugged, die-cast components are used where space is limited. The silencing effect is achieved by reduc-ing air speed. The silencers achieve a considerable reduction in exhaust air noise without affecting the speed of the piston rod of a cylinder. Important: Clean silencers in kerosene or naptha (not with trichloroethylene). D1 - --- 1 i_i J (-> L1 _ L D SW = wrench size (mm) Type D diameter D1 L L1 SW in / mm in / mm in / mm in / mm U-1/8-B 0.63 / 16.0 G 1/8 ISO 1.56 / 39.5 0.26 / 6.5 0.55 / 14 U-1/8-B-NPT 0.63 / 16.0 1/8 NPT 1.56 / 39.5 0.26 / 6.5 0.55 / 14 U-1/4-B 0.77 / 19.5 G 1/4 ISO 2.22 / 56.5 0.33 / 8.5 0.67 / 17 U-1/4-B-NPT 0.77 / 19.5 1/4 NPT 2.22 / 56.5 0.33 / 8.5 0.67 / 17 U-3/8-B 0.98 / 25.0 G 3/8 ISO 3.48 / 88.5 0.41 / 10.5 0.75 / 19 U-3/8-B-NPT 0.98 / 25.0 3/8 NPT 3.48 / 88.5 0.41 / 10.5 0.75 / 19 U-1/2-B 1.10 / 28.0 G 1/2 ISO 4.72 / 120.0 0.55 / 14 0.94 / 24 U-1/2-B-NPT 1.10 / 28.0 1/2 NPT 4.72 / 120.0 0.55 / 14 0.94 / 24 U-3/4-B 1.50 / 38.0 G 3/4 ISO 5.59 / 142.0 0.63 / 16 1.26 / 32 U-1-B 1.88 / 47.8 G1 ISO 7.06 / 179.4 0.59 / 15 1.42 / 36 Pressure Range 0 to 150 psi / 0 to 10 bar Temperature Range -50°F to +158°F / -10°C to +70°C Order No. Noise level at Orifice size Cv Weight Part No. Type Thread 90 psi / 6 bar to at inlet factor** atmosphere* dB (A) in / mm Cv / l/min lb / kg 6841 U-1/8-B G 1/8 ISO 74 0.21 / 5.3 1.45 / 1450 0.018 / 0.008 12638 U-1/8-B-NPT 1/8 NPT 74 0.21 / 5.3 1.45 / 1450 0.018 / 0.008 6842 U-1/4-B G 1/4 ISO 78 0.30 / 7.5 3.00 / 3000 0.037 / 0.017 12639 U-1/4-B-NPT 1/4 NPT 78 0.30 / 7.5 3.00 / 3000 0.037 / 0.017 6843 U-3/8-B G 3/8 ISO 80 0.35 / 9.0 4.50 / 4500 0.082 / 0.037 12740 U-3/8-B-NPT 3/8 NPT 80 0.35 / 9.0 4.50 / 4500 0.082 / 0.037 6844 U-1/2-B G 1/2 ISO 80 0.55 / 14.0 6.00 / 6500 0.165 / 0.075 12741 U-1/2-B-NPT 1/2 NPT 80 0.55 / 14.0 6.00 / 6500 0.165 / 0.075 6845 U-3/4-B G 3/4 ISO 81 0.67 / 17.0 11.0 / 11000 0.265 / 0.120 151990 U-1-B G 1 ISO 82 0.93 / 23.5 17.3 / 17300 0.514 / 0.233 Materials Housing: Diecast Aluminum Insert: Plastic * Measured at a distance of 3 ft / 1 m ** At 90 psi / 6 bar 914 (Ref. 10.9/10-5) (98) Subject to change