Sun Hydraulics Catalog - BIBUS SK, sro

Relief Valves, Electro-ProportionalPILOT OPERATED, BALANCED PISTON, VENTABLE, DRAIN TO PORT 4,MAIN STAGE WITH INTEGRAL T-8A CONTROL CAVITYbT-8A Cavity34 T-8ACav21The -8 control option allows a pilot control valve to be incorporated directlyinto the end of the relief cartridge via the T-8A cavity. These pilot controlcartridges are sold separately and include electro-proportional, solenoid, airpilot, and hydraulic pilot operation. See Pilot Control Cartridges on page 141.4Drainc3Vent2OutletInlet 1Performance Curves400aLocatingShoulderCapacityTypicalCartridgeModel CodeCartridge DimensionsCavity a b cInstallationTorque(Nm)60 L/min. RVCD – 8WN T - 21A 35,1 22,2 45,2 45 - 50120 L/min. RVED – 8WN T - 22A 35,1 28,6 50,8 60 - 70240 L/min. RVGD – 8WN T - 23A 46,0 31,8 65,8 200 - 215480 L/min. RVID – 8WN T - 24A 63,5 41,3 80,3 465 - 500RVCD-8 RVED-8 RVGD-8 RVID-8400Pressure vs. Flow400400P = bar300200100P = bar300200100P = bar300200100P = bar300200100020 40 60Flow = L/min.80040 80 120Flow = L/min.160080 160 240Flow = L/min.3200160 320 480Flow = L/min.640P = bar151050W■■■■■■Pressure vs. Command with T-8A Pilot Stage (RBAP-MAN) InstalledP = bar1510W5DD20 40 60 800 40 80 120 1600Flow = L/min.Flow = L/min.P = bar151055D100 200 300 4000Flow = L/min.WD200 400 600 800Flow = L/min.Maximum operating pressure = 350 bar.Main stage leakage at 24 cSt = RVCD-8: 30 cc/min. at 70 bar; RVED-8: 50 cc/min. at 70 bar;RVGD-8: 65 cc/min. at 70 bar; RVID-8: 80 cc/min. at 70 bar.Control pilot flow = RVCD-8: 0,11 to 0,16 L/min.; RVED-8: 0,16 to 0,25 L/min.; RVGD-8,RVID-8: 0,25 to 0,33 L/min.Typical response time 10 ms.Will accept maximum pressure at port 2; suitable for use in cross-port relief circuits.Pressure at port 4 is directly additive to the valve setting at a 1:1 ratio and should not exceed 350 bar.WP = bar1510OPTION ORDERING INFORMATIONRV ✱ D – 8 ✱✱NominalMinimum ControlCapacityControlPressureSeal MaterialC 60 L/min. 8 T-8A Cavity in D 1,7 bar N Buna-Nhex body forE 120 L/min. pilot operation W 7 bar V VitonGI240 L/min.480 L/min.Pilot valve tobe orderedseparatelyVisit www.sunhydraulics.com for current list pricing and complete technical information on all Sun products.Int’l Shortcut Catalogue #999-901-312 23