68 www.parker.com/gsfe Modular Aluminium Compressed Air Dryers WVM Large Flow Vacuum Low Energy Adsorption Dryers Technical Data Dryer Models Minimum Operating Pressure Maximum Operating Pressure* Minimum Operating Temperature Maximum Operating Temperature Maximum Ambient Temperature Electrical Supply (Standard) Electrical Supply (Optional) Connection Noise Level bar g psi g bar g psi g °C °F °C °F °C °F dB(A) WVM 4 58 11 145 5 41 40 104 40 104 400V 3ph 50Hz On request Flanged 80-85 *For higher operating pressure please contact Parker GSFE Division. Flow Rates Model Pipe Size Inlet Flow Rate Average Power kW L/s m3/min m3/hr cfm WVM 45 DN 50 125 7.5 450 265 3.6 WVM 60 DN 50 169 10.2 610 359 5.3 WVM 80 DN 50 222 13.4 800 471 6.8 WVM 125 DN 80 325 19.5 1170 689 9.5 WVM 155 DN 80 408 24.5 1470 865 12.8 WVM 210 DN 80 569 34.2 2050 1207 16.8 WVM 310 DN 100 847 50.9 3050 1795 25.4 WVM 370 DN 100 1028 61.8 3700 2178 30.8 WVM 520 DN 150 1403 84.3 5050 2972 41.8 WVM 615 DN 150 1681 101.0 6050 3561 52.6 WVM 750 DN 150 2028 121.9 7300 4297 59.5 CFMIT - Correction Factor Maximum Inlet Temperature Maximum Inlet Temperature °C 25 30 35 40 °F 77 86 95 104 Correction Factor 0.80 0.91 1.00 1.80 CFAT - Correction Factor Maximum Ambient Temperature Maximum Ambient Temperature °C 20 25 30 35 40 °F 68 77 86 95 104 Correction Factor 1.00 1.00 1.00 1.00 1.00 CFMIP - Correction Factor Minimum Inlet Pressure Minimum Inlet Pressure bar g 4 5 6 7 8 9 10 11 psi g 58 73 87 100 116 131 145 160 Correction Factor 2.00 1.39 1.18 1.00 0.99 0.87 0.79 0.56 CFOD - Correction Factor Outlet Dewpoint Outlet Dewpoint °C -20 -25 -40 -70 °F -4 -13 -40 -100 Correction Factor 0.95 0.95 1.00 * Product Selection & Correction Factors For correct operation, compressed air dryers must be sized using for the maximum inlet temperature, maximum ambient temperature, minimum inlet pressure, required outlet dewpoint and maximum flow rate of the installation. To select a dryer, first calculate the MDC (Minimum Drying Capacity) using the formula below then select a dryer from the flow rate table above with a flow rate equal to or above the MDC. Minimum Drying Capacity = System Flow x CFMIT x CFMAT x CFMIP x CFOD Dryer Performance Dryer Models Dewpoint (Standard) ISO8573-1:2010 Classification (Standard) Dewpoint (Option 1) ISO8573-1:2010 Classification (Option 1) Dewpoint (Option 2) ISO8573-1:2010 Classification (Option 2) °C °F °C °F °C °F WVM -40 -40 Class 2.2.2 -70 -100 Class 2.1.2 -20 -4 Class 2.3.2 ISO8573-1 Classifications when used with OIL-X pre/post filtration. Inlet flow rate relating to 1 bar(a) and 20°C; relating to the suction performance of the compressor, compression at 7 bar(g) and 35°C dryer inlet temperature, at 25°C ambient temperature, 60% relative humidity. Dryers for higher flows are available on request. 25% rel. hum. at 40°C; 37% rel. hum. at 35°C; 50% rel. hum. at 30°C; 70% rel. hum. at 25°C; 90% rel. hum. at 20°C. For higher ambient temperature and/or higher relative humidity please contact Parker GSFE Division. *Selection for Dewpoint -70°C - *Please contact Parker GSFE Division. Carbon Steel Twin Tower Compressed Air Dryers
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