76 www.parker.com/gsfe Compressed Air Filters and Dryers (20 bar to 350 bar) Flow Rates Filtration Grade Filter Type Particle Reduction (inc. water & oil aerosols) Maximum Remaining Oil Content at 21°C (70°F) Filtration Efficiency Initial Dry Differential Pressure Initial Saturated Differential Pressure Change Element Every Precede with Filtration Grade V Dry Particulate Down to 3 micron N/A >90% <300 mbar (<4.35 psi) <350 mbar (<5 psi) 12 months or 6000 hours N/A ZP Coalescing & Dry Particulate Down to 1 micron 0.5 mg/m³ 0.5 ppm(w) 99.925% <300 mbar (<4.35 psi) <370 mbar (<5.4 psi) 12 months or 6000 hours N/A XP Coalescing & Dry Particulate Down to 0.01 micron 0.01 mg/m³ 0.01 ppm(w) 99.9999% <300 mbar (<4.35 psi) <400 mbar (<5.8 psi) 12 months or 6000 hours ZP A Oil Vapour Reduction N/A 0.003 mg/m³ 0.003 ppm(w) N/A <300 mbar (<4.35 psi) N/A When oil vapour is detected ZP+XP Filtration Grade Filter Models Minimum Operating Pressure Maximum Operating Pressure Minimum Operating Temperature Maximum Operating Temperature bar g psi g bar g psi g °C °F °C °F V/ZP/XP GH3/350 - GH13/350 50 725 350 5076 2 35 80 176 A GH3/350 - GH13/350 50 725 350 5076 2 35 50 122 Product Selection & Correction Factors To correctly select a filter model, the flow rate of the filter must be adjusted for the minimum operating (inlet) pressure at the point of installation. 1. Obtain the minimum operating (inlet) pressure and maximum compressed air flow rate at the inlet of the filter. 2. Select the correction factor for minimum inlet pressure from the CFMIP table (always round down e.g. for 155 bar, use 150 bar correction factor) 3. Calculate the minimum filtration capacity. Minimum Filtration Capacity = Compressed Air Flow Rate x CFMIP 4. Using the minimum filtration capacity, select a filter model from the flow rate tables above (filter selected must have a flow rate equal to or greater than the minimum filtration capacity). Minimum Inlet Pressure bar g 50 60 70 80 90 100 125 150 175 200 225 250 275 300 325 350 psi g 725 870 1015 1160 1305 1450 1813 2175 2538 2901 3263 3626 3989 4351 4714 5076 Correction Factor 2.65 2.42 2.24 2.09 1.97 1.87 1.67 1.53 1.41 1.32 1.25 1.18 1.13 1.08 1.04 1.00 Stated flows are for operation at 7 bar (g) (102 psi g) with reference to 20°C, 1 bar (a), 0% relative water vapour pressure. For flows at other pressures, apply the correction factors shown below. Filtration Performance Technical Data Filter Coding Example Grade Model XP GH3/350XP Model Pipe Size L/S m³/min m³/hr cfm Replacement Element No. GH3/350 1/2" 101 6.1 365 215 1050 1 GH5/350 1/2" 139 8.4 501 295 1070 1 GH7/350 1/2" 215 12.9 776 457 1140 1 GH9/350 1/2" 287 17.3 1035 609 2010 1 GH11/350 1" 514 30.9 1852 1090 2020 1 GH12/350 11/2" 782 46.9 2816 1657 2030 1 GH13/350 11/2" 1184 71.0 4261 2508 2050 1 Grade Grade Grade Grade Grade Grade Grade Important Note: Using the same filter housings as their coalescing and dry particulate counterparts, Grade A filter elements differ in that they utilise a bed of activated carbon to adsorb oil vapour. It is important to note, in-line adsorption filter elements have a different life span compared to coalescing and dry particulate filters and require more frequent element changes. GH - 350 Bar Compressed Air Filters CFMIP - Correction Factor Minimum Inlet Pressure Grade Grade Grade Grade Grade Grade Grade
RkJQdWJsaXNoZXIy MTQ4NTgyMQ==