Delta Power Company - Power-Hydraulik

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Pressure Drop (PSI) MECHANICAL DIRECTIONAL CONTROLS Delta Power Company 4484 Boeing Drive - Rockford, IL 61109 DF-CPD Pilot to Close Check Valve, Guided Ball HYDRAULIC SYMBOL DESCRIPTION 10 size, 7/8-14 thread, “Delta” series, pilot to close, ball check valve. OPERATION The DF-CPD allows free flow from (3) to (2), and blocks flow from (2) to (3). Flow will be blocked from (3) to (2) when sufficient pressure is applied at (1). The cartridge has various “pilot ratios” (see options). Example: 1/4 for 4:1 of the load pressure held at (3) is required at (1) to close the valve. The check is spring biased to assure holding in static or no-load conditions. FEATURES • Hardened parts for long life. • Industry common cavity. Consult chart for flow operation of each model. Special higher bias spring values available. Consult factory. PERFORMANCE Actual Test Data (Cartridge Only) VALVE SPECIFICATIONS Maximum Flow 10 GPM (38 LPM) 200 150 100 50 0 Flow (LPM) 0 5 10 15 20 25 30 35 40 45 250 0 2 4 6 8 10 12 Flow (GPM) Port 3 to 2 (4:1) Port 3 to 2 (6:1) 15 10 5 0 Pressure Drop (BAR) Rated Operating Pressure 3500 PSI (241 bar) Typical Internal Leakage (150 SSU) 50 drops/min from (2) to (3) 5 drops/min from (3) to (2) when port (1) is piloted Pilot Ratio (see options) Viscosity Range 36 to 3000 SSU (3 to 647 cSt) Filtration ISO 18/16/13 Media Operating Temperature Range -40° to 250° F (-40° to 120° C) Weight .20 lbs. (.09 kg) Operating Fluid Media General Purpose Hydraulic Fluid Cartridge Torque Requirements 30 ft-lbs (40.6 Nm) Cavity DELTA 3W Cavity Form Tool (Finishing) 40500001 Seal Kit 21191202 WARNING: The specifications/application data shown in our catalogs and data sheets are intended only as a general guide for the product described (herein). Any specific application should not be undertaken without independent study, evaluation, and testing for suitability. Phone: (815) 397-6628 Fax: (815) 397-2526 E-mail: delta@delta-power.com Page 238
MECHANICAL DIRECTIONAL CONTROLS Delta Power Company 4484 Boeing Drive - Rockford, IL 61109 DIMENSIONS ORDERING INFORMATION DF-CPD - - - OPTIONS BODIES Buna, 4:1 Ratio 04 Blank Without Body Buna, 6:1 Ratio 06 N 1/4 NPTF Ports Viton, 4:1 Ratio V4 S #6 SAE Ports Viton, 6:1 Ratio V6 CRACK PRESSURE 0015 15 PSI 0025 25 PSI 0050 50 PSI 0075 75 PSI 0100 100 PSI ± 10% WARNING: The specifications/application data shown in our catalogs and data sheets are intended only as a general guide for the product described (herein). Any specific application should not be undertaken without independent study, evaluation, and testing for suitability. Phone: (815) 397-6628 Fax: (815) 397-2526 E-mail: delta@delta-power.com Page 239
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Delta Power Company - Power-Hydraulik

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