Sun Hydraulics Catalog - BIBUS SK, sro

Logic ElementsUNBALANCED POPPET, VENT-TO-OPEN, WITHINTEGRAL T-8A CONTROL CAVITYb3Port2PortT-8A Cavity1 PortPerformance CurvescaLocatingShoulder1NominalCapacity2 3T-8ACavLO*A-8 LO*B-8 LO*D-8TypicalCartridgeModel Code2 31T-8ACav2 3Cartridge DimensionsCavity a b cThe -8 control option allows apilot control valve to be incorporateddirectly into the end of the cartridge viathe T-8A cavity. These pilot controlcartridges are sold separately andinclude solenoid and air pilot operation.See Pilot Control Cartridges onpage 141.InstallationTorque(Nm)95 L/min. LODA – 8DN T - 11A 35,0 22,2 30,2 45 - 50200 L/min. LOFA – 8DN T - 2A 35,0 28,6 35,1 60 - 70380 L/min. LOHA – 8DN T - 17A 46,0 31,8 46,0 200 - 215760 L/min. LOJA – 8DN T - 19A 63,5 41,3 58,7 465 - 5001T-8ACavLOD*-8 LOF*-8 LOH*-8 LOJ*-8Full Open Pressure Drop with T-8A Pilot Stage InstalledP = bar20161284P = bar20161284P = bar20161284P = bar201612840 25 50 75 100 0 50 100 150 200 0 100 200 300 400 0 200 400 600Flow = L/min. Flow = L/min. Flow = L/min. Flow = L/min.■Maximum operating pressure = 350 bar.■Area ratio: A3 to A1 = 1.8:1; A3 to A2 = 2.25:1.■Control orifice diameter = LOD*-8, LOF*-8: 0,53 mm, LOH*-8: 0,8 mm, LOJ*-8: 0,9 mm.■Pilot volume displacement= LOD*-8: 0,66 cc; LOF*-8: 1,1 cc; LOH*-8: 4,1 cc.; LOJ*-8: 6,9 cc.■These valves are pressure responsive at all three ports, therefore it is essential to consider all aspects ofsystem operation through a complete cycle. Pressure changes at any one port may cause a valve to switchfrom a closed to an open position, or vice versa. All possible pressure changes in the complete circuit must beconsidered to assure a safe, functional system design.■With the -8 control option, the main stage valve should first be installed to the correct torque value. TheT-8A pilot control valve should then be installed into the main stage valve to its required torque value.800OPTION ORDERING INFORMATIONLO ✱✱ – 8D✱NominalCapacityVersion Control Cracking Pressure Seal MaterialD 95 L/min. A Spring biased closed, 8 T-8A Cavity in D 3,5 bar N Buna-NPilot source from Port 1hex body forF 200 L/min. pilot operation V VitonB Spring biased closed,H 380 L/min. Pilot source from Port 2 Pilot valve tobe orderedJ 760 L/min. D Spring biased closed, separatelywith pilot sourcefrom Ports 1 or 2Visit www.sunhydraulics.com for current list pricing and complete technical information on all Sun products.Int’l Shortcut Catalogue #999-901-312 109