Solutions for advanced hydraulic systems Imprint Applications Products News & Downloads Services Contact Home Proportional Main Control Valves Design Features · Sectional Valvesystem configurational as “Kit” · Compact design · Designed for systempressure of 420 bar · Mainspools with various logic functions and different volumeflows within the same size · Various primary functions. E.g. checkvalve, pressure compensator, damped pressure compensator, etc. · Inlet sections suitable for constant- or displacement pumpsystems · Actuation electrical, manual or hydraulical, also mixed · Flat mounting surface · Various additional options as primary and secondary pressure limiting valves   schockvalves, suctionvalves, load sensing for each consumer port · Anti-sättigungs__function in case of unsufficient pump volumeflow · Various possibilities of internal optimization for the adaption to applications requirements Size Max. Volumeflow Port P Port A/B Max. Pressure P/A/B T Max. Qty of Sections Fluidtemperaturerange   Fluid-Operating Viscosity Fluidviscosity opt. Fluidcontamination Type of Fluid APV-16                          260 l/min 120 l/min 420 bar 35 bar Hydraulic proportional Electric proportional (12 and 24 Volt) 12 sections -30 … +80°C 10 … 500 cSt 15 … 30 cSt 150 l/min Activation Manually proportional Class 8 NAS 1638 or 18/16/13 ISO 4406 Mineraloil HLP according DIN 51 524. Biological degradebal oils and other fluids only on demand. APV-22                          650 l/min 330 l/min (without compensator) (without compensator) The WESSEL proportional Directional Control Valve is used for mobile applications. The valves  are Load Sensing valves in sectional design. Click to enlarge the schematic  Safety Valves  Flow Control Valves  Directional Control Valves  Lock Valves  Pressure Valves  Valve Systems  Load Holding Valves  Lowering Brake Valves  Brake Valves  Slewing Brake Valves  Priority Valves  Flow Divider  Throttling Check Valves  Main Control Valves  Regenerative Valves  Additional Section  Directional Control Valve 2/2  Directional Control Valve 3/2  Directional Control Valve 3/3  Directional Control Valve 5/2  Directional Control Valve 5/3  Check Valves  Pressure Limiting Valves  Pressure Reducing Valves  Controller  Joystick handle  Quickcoupler Valves  Directional Control Valve 6/2-6/3 WESSEL Tool Control plus Upgrading of construction machines equiped with Quick-Coupler-Systems. Proportional control of up to 16 different attachments Load Holding Valves The key for a safe machine: Requirements for Load Holding Valves. . . . Loweríng Brake Valves Safe valve technology for mobile construction machines Main Valve Proportional Control Valve for mobile applications, LS- valve in sectional construction With effect form October 2011 our company is certified by german customs as AEO-F