Description Size 16 … 32 Component series 2X Maximum operating pressure 315 bar Maximum flow 400 l/min Features For block installation (cartridge valve, screw-in cartridge valve) 3 adjustment types, optional• Rotary knob• Lockable rotary knob with scale• Rotary knob with scale Various cracking pressures Product description Type FK . C1… Type FK . K… (Cartridge valve) The valves type FK are throttle check valves. The flow depends on the pressure differential between A and B and on the viscosity of the hydraulic fluid. The valves mainly consist of adjustment type (1), housing (2), throttle bolt (3) and check valve (4). The flow is throttled from A to B. The throttle cross-section (5) is adjusted by displacing the throttle bolt (3) in axial direction. For free flow back from B to A, a check valve (4) is installed. Type FK . C… (Screw-in cartridge valve) In principle, the function of these valves corresponds to the function of version "K". However, they are delivered without housing (2) and thus can be screwed into the block directly. Type code 01 02 03 04 05 06 07 08 FK – 2X / * 01 Throttle check valve FK 02 Size 16 16 Size 25 25 Size 32 32 03 Cartridge valve K Cartridge valve C Adjustment type 04 Rotary knob 1 Lockable rotary knob with scale 3 Rotary knob with scale 7 Cracking pressure 05 Cracking pressure 1.5 bar (standard) 2 Cracking pressure 3 bar 3 06 Component series 20 … 29 (20 … 29: unchanged installation and connection dimensions) 2X Seal material 07 NBR seals no code FKM seals V Observe compatibility of seals with hydraulic fluid used. (Other seals upon request) 08 Further details in the plain text * Technical data general Size 16 25 32 Weight Cartridge valve "K" kg 0.8 1.7 4 Screw-in cartridge valve "C" kg 0.4 0.7 1.7 Installation position any Ambient temperature range NBR seals °C -30 … +80 FKM seals °C -20 … +80 Hydraulic fluid Classification Suitable sealing materials Standards Mineral oils and related hydrocarbons HL, HLP, HLPD, HVLP, HVLPD NBR, FKM DIN 51524 Environmentally compatible Insoluble in water HETG NBR, FKM ISO 15380 HEES FKM Soluble in water HEPG FKM ISO 15380 Containing water Water-free HFDU, HFDR FKM ISO 12922 Important information on hydraulic fluids! For further information and data on the use of other hydraulic fluids, please refer to data sheet 90220 or contact us! There may be limitations regarding the technical valve data (temperature, pressure range, life cycle, maintenance intervals, etc.)! hydraulic Size 16 25 32 Maximum operating pressure bar 315 Maximum flow (standard valves) l/min 100 200 400 Hydraulic fluid see table Hydraulic fluid temperature range NBR seals °C -30 … +80 FKM seals °C -20 … +80 Viscosity range mm²/s 10 … 800 Maximum admissible degree of contamination of the hydraulic fluid 1) Class 20/18/15 according to ISO 4406 (c) Actuating torque approx. (adjustment type) Nm 5 1) The cleanliness classes specified for the components must be adhered to in hydraulic systems. Effective filtration prevents fa
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