CV9 Master Catalog

6 Specifications subject to change without notice or incurring obligation Work Cylinders Driving End Output End BA Series Booster Regulated Supply Controls Final Output Pressure of Booster Air/Oil Tank Atmosphere Gage Pilot Operated Check Valve 4 Way Control Valve Air/Oil Tank Atmosphere Regulated Supply Controls Final Output Pressure of Booster 4 Way Control Valve Gage Driving End Output End Check Valve Check Valve Sensors BA Series Booster with Option E Magnetic Piston for Piston Position Sensing 5-21-13 To size an Air to Oil booster, Boyle's Law need not be taken into account because oil is considered an incompressible fluid. Consult Fabco-Air Engineering for fluid compatibility with standard internally lubricated Buna-N seals or optional Viton seals. Air-to-Oil Sizing ( for Air-to-Air Sizing See Page 6.9 & 6.10) 6.11 EXAMPLE 5 : Pump cycle, Air to Oil Booster Required output = 1000 cu. in./min. @ 250 psi Available air pressure = 70 psi Solution: Power = Required Pressure psig = 145 Available Pressure psig 80 = 1.8 Minimum Required Power Factor Choose either: 2-1/2" Bore – 2 Stage or 4" Bore – 2 Stage (See Sizing Guide on page 6.2) Solution: Volume of Booster = Displacement of Cylinders + Margin Displacement = Area of Bore x Stroke x Quantity of Cylinders Margin = 25% Recommended to allow for losses and make-up fluid Booster Volume = [2.07 (area of 1-5/8" bore) x 4" (stroke) x 2 (quantity)] x 125% (margin) = [16.6] x 1.25 = 20.8 cu. in. Solution (2-1/2" Bore): Stroke = Required Volume = 20.8 = 4.3 in. Volume per Inch Stroke ‡ 4.9 ‡ ‡ For 2-1/2" Bore, Volume per Inch of Stroke = 4.9 (See Sizing Guide on page 6.2) Model Choice : BA2-1/2 X 5 X 2 Alternate Solution (4" Bore): ‡ For 4" Bore, Volume per Inch of Stroke = 12.6 (See Sizing Guide on page 6.2) Model Choice : BA4 X 2 X 2 Stroke = Required Volume = 20.8 = 1.7 in. Volume per Inch Stroke ‡ 12.6 ‡ Solution: Power = Required Pressure psig = 250 Available Pressure psig 70 = 3.6 Minimum Required Power Factor Choose either: 2-1/2" Bore – 4 Stage or 4" Bore – 4 Stage (See Sizing Guide on page 6.2) Solution (2-1/2" Bore): Stroke = Required Volume/Min = 1000 = 10.2 in. Volume per Inch Stroke ‡ x CPM 4.9 ‡ x 20 ‡ For 2-1/2" Bore, Volume per Inch of Stroke = 4.9 (See Sizing Guide on page 6.2) CPM = 20 (Typical average for Fabco-Air Air to Oil Booster) Model Choice : BA2-1/2 X 11 X 4 Alternate Solution (4" Bore): Stroke = Required Volume/Min = 1000 = 3.97 in. Volume per Inch Stroke ‡ x CPM 12.6 ‡ x 20 ‡ For 4" Bore, Volume per Inch of Stroke = 12.6 (See Sizing Guide on page 6.2) CPM = 20 (Typical average for Fabco-Air Air to Oil Booster) Model Choice : BA4 X 4 X 4 EXAMPLE 4 : One shot cycle, Air to Oil Booster Application shown: 2 cylinders, 1-5/8" bore x 4" stroke must extend to full stroke at 145 psi, then retract at system (80 psi) pressure. Input Air Usage, Pump Cycle (See Example 5 above; Model BA 2-1/2 X 11 X 4, 20 stroke/min. @ 70 psi) = CFM x psia = 3.03 x (67.6 + 14.7) = 17.0 SCFM required Atmosphere 14.7 Solution: Pressure = Required Final Pressure = 250 = 67.6 psi regulated input required Booster Power Factor 3.7 Solution: Volume (CFM) = [ Input Volume per Inch Stroke + Reset Volume per Inch Stroke] x Stroke x CPM 1728 cu.in. / cu.ft. Input Volume per Inch Stroke = 19.3; Reset Volume per Inch Stroke = 4.5 (See Sizing Guide on page 6.2) Stroke = 11 CPM = 20 Volume = [19.3 + 4.5] x 11 x 20 = 23.8 x 0.127 = 3.03 CFM @ 67.6 psi 1728 Converting Volume to SCFM:

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