4484 Boeing Drive - Rockford, IL 6119 SECTION/Description Pages Logic Elements 4 Page 43
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4484 Boeing Drive - Rockford, IL 6119 Logic Elements GPM PSI LPM BAR MODEL PAGE 4 3 14 241 SL-PLA 46 4 3 14 241 SL-PLB 48 4 3 14 241 SL-PLC Typical Schematic Typical application for the PLA, PLB, and PLC is on a circuit as bi-directional pilot operated 2 way valve with either vent to open or pilot to close from an external source. PLX -V -VV -C -VC PLX -P -VP -B -VB Page 4
4484 Boeing Drive - Rockford, IL 6119 SL-PLA Super Series, Logic Valve DESCRIPTION 16 size, 1 /16-12 thread, Super series, logic valve OPERATION The SL-PLA with an orifice between ports (3) and (1) maintains a constant flow rate from (3) regardless of load pressure changes in the system upstream of (3), or in the bypass leg at (2) as long as pressure at (2) is less than (1). Used for basic blocking applications. HYDRAULIC SYMBOL FEATURES Hardened parts for long life. Industry common cavity. For bidirectional applications see SL-PLC. For metering see SL- PCA or SL-PCB. PERFORMANCE Actual Test Data (Cartridge Only) Pressure @ Port 3 (PSI) 2 7 1 12 1 12 1 7 2 1 1 2 2 3 3 4 Port 3 to 2 (Undercut Cavity) Port 3 to 2 (Standard Cavity) 2 7 1 12 1 2 Pressure @ Port 3 (BAR) VALVE SPECIFICATIONS Nominal Flow 4 GPM (11 LPM) Rated Operating Pressure 3 PSI (241 bar) Viscosity Range 36 to 3 SSU (3 to 647 cst) Filtration ISO 18/16/13 Media Operating Temperature Range -4 to 2 F (-4 to 12 C) Weight.69 lbs. (.31 kg) Operating Fluid Media General Purpose Hydraulic Fluid Cartridge Torque Requirements 9 ft-lbs. (122 Nm) Cavity SUPER 3WS Cavity Form Tool (Finishing) 421 Seal Kit 2119149 Seat Ratio Area of the pilot is 1.2 times the area of the seat at Port 3. Pressure @ Port 3 (PSI) 1 1 1 Pressure @ Port 3 (BAR) 1 1 2 2 3 3 4 Port 3 to 2 (Undercut Cavity) Port 3 to 2 (Standard Cavity) Page 46
4484 Boeing Drive - Rockford, IL 6119 DIMENSIONS ORDERING INFORMATION SL-PLA - - - OPTIONS BODIES Buna Pilot to Close P Blank Without Body Buna Vent to Open V S #12 SAE Ports Viton Pilot to Close VP Viton Vent to Open VV Buna Pilot to Close w/seals B PRESSURE SETTING Buna Vent to Open w/seals C 2 2 PSI Viton Pilot to Close w/seals VB PSI Viton Vent to Open w/seals VC 1 1 PSI 1 1 PSI Page 47
4484 Boeing Drive - Rockford, IL 6119 SL-PLB Super Series, Logic Valve DESCRIPTION 16 size, 1 /16-12 thread, Super series, logic valve OPERATION The SL-PLB with an orifice between ports (3) and (1) maintains a constant flow rate from (3) regardless of load pressure changes in the system upstream of (3), or in the bypass leg at (2) as long as pressure at (2) is less than (1). Used for basic blocking applications. HYDRAULIC SYMBOL FEATURES Hardened parts for long life. Industry common cavity. For bidirectional applications see SL-PLC. For metering see SLPCA or SL-PCB. PERFORMANCE Actual Test Data (Cartridge Only) Pressure @ Port 3 (PSI) Pressure @ Port 3 (PSI) 2 7 1 12 1 2 1 1 1 1 2 2 3 3 4 Port 3 to 2 (Undercut Cavity) Port 3 to 2 (Standard Cavity) 2 7 1 12 1 2 2 1 1 1 1 2 2 3 3 4 Port 3 to 2 (Undercut Cavity) Port 3 to 2 (Standard Cavity) 1 1 1 Pressure @ Port 3 (BAR) Pressure @ Port 3 (BAR) VALVE SPECIFICATIONS Nominal Flow 4 GPM (11 LPM) Rated Operating Pressure 3 PSI (241 bar) Viscosity Range 36 to 3 SSU (3 to 647 cst) Filtration ISO 18/16/13 Media Operating Temperature Range -4 to 2 F (-4 to 12 C) Weight.69 lbs. (.31 kg) Operating Fluid Media General Purpose Hydraulic Fluid Cartridge Torque Requirements 9 ft-lbs (122 Nm) Cavity SUPER 3WS Cavity Form Tool (Finishing) 421 Seal Kit 2119149 Seat Ratio Area of the Pilot is 1. times the area of the seat at Port 3 Page 48
4484 Boeing Drive - Rockford, IL 6119 DIMENSIONS ORDERING INFORMATION SL-PLB - - - OPTIONS BODIES Buna Pilot to Close P Blank Without Body Buna Vent to Open V S #12 SAE Ports Viton Pilot to Close VP Viton Vent to Open VV Buna Pilot to Close w/seals B PRESSURE SETTING Buna Vent to Open w/seals C 2 2 PSI Viton Pilot to Close w/seals VB PSI Viton Vent to Open w/seals VC 1 1 PSI 1 1 PSI Page 49
4484 Boeing Drive - Rockford, IL 6119 SL-PLC Super Series, Logic Valve DESCRIPTION 16 size, 1 /16-12 thread, Super series, logic valve OPERATION The SL-PLC with an orifice between ports (3) and (1) maintains a constant flow rate from (3) regardless of load pressure changes in the system upstream of (3), or in the bypass leg at (2) as long as pressure at (2) is less than (1). Used for basic bidirectional blocking applications. HYDRAULIC SYMBOL FEATURES Hardened parts for long life. Industry common cavity. For metering see SL-PCA or SL-PCB. PERFORMANCE Actual Test Data (Cartridge Only) Inlet Pressure (PSI) 2 7 1 12 1 3 2 2 2 1 1 1 1 1 2 2 3 3 4 Port 3 to 2 (Standard Cavity) Port 2 to 3 (Standard Cavity) 2 7 1 12 1 1 1 Inlet Pressure (BAR) VALVE SPECIFICATIONS Nominal Flow 4 GPM (11 LPM) Rated Operating Pressure 3 PSI (241 bar) Viscosity Range 36 to 3 SSU (3 to 647 cst) Filtration ISO 18/16/13 Media Operating Temperature Range -4 to 2 F (-4 to 12 C) Weight.6 lbs. (.29 kg) Operating Fluid Media General Purpose Hydraulic Fluid Cartridge Torque Requirements 9 ft-lbs. (122 Nm) Cavity SUPER 3WS Cavity Form Tool (Finishing) 421 Seal Kit 2119149 Seat Ratio Area of the Pilot is 2 times the area of the seat at Port 3 Inlet Pressure (PSI) 7 2 Inlet Pressure (BAR) 1 1 2 2 3 3 4 Port 3 to 2 (Undercut Cavity) Port 2 to 3 (Undercut Cavity) Page
4484 Boeing Drive - Rockford, IL 6119 DIMENSIONS ORDERING INFORMATION SL-PLC - - - OPTIONS BODIES Buna Pilot to Close P Blank Without Body Viton Pilot to Close VP S #12 SAE Ports Buna Pilot to Close w/seals B Viton Pilot to Close w/seals VB PRESSURE SETTING 2 2 PSI PSI 1 1 PSI 1 1 PSI Page 1