Eaton SystemStak DGM 3 40 Series Manual

EATON SystemStak™ Valves Size 07 E-VLVI-SS001-E1 October 2015O-7OSystemStak™ Pilot Operated Check ValveDGMPC-7General DescriptionFeatures:• Industry Standard Mounting, ISO 4001-7, NFPA T 3.51 MR1 and ANSI B 93.7 D07• For use in vertical stacking assemblies• For the leak free closure of one or both service portsGeneralThe DGMPC hydraulic operated check valve is of a sandwichplate design. They are used for leak-free closure of one orboth service ports, even for long periods of time. Free flowoccurs from A1 to A2 or B1 to B2. Flow in the oppositedirection is blocked. The fluid flows from A1 to A2, the piston(1) is pressurised and is pushed to the right, thereby openingthe ball poppet (2) which then opens the main poppet (3). Inorder to ensure correct closing of the valve, the service portsof the directional valve must be connected to tank in theneutral position (see typical circuit).1 Piston2 Ball Poppet3 Main Poppet4 Area A15 Area A26 Area A3AA1BB1A2 B2P TA2 B2A1 B1A2 B2A1 B1A2 B2A1AB*- BA * AB* BA *B126 51A1 B1A2 B234SymbolsTypical CircuitModel Code(F3) - DGMPC - 7 - AB - *- (BA) - (*) - 301 62 3 5 7 84Seal OptionsF3 – Fluorocarbon seals, forPhosphate Ester (classL-HFD)Blank – Nitrile, for Mineral oilAnti-wear hydraulicoil (class L-HM),Invert emulsion(class L-HFB) Waterglycol (class L-HFC)Stack module, pilotedoperated check valveSizeISO 4401-07Check Valve LineAB – A piloted from BBA – B piloted from A(Single line only)Cracking PressureK – 3 BarL – 5 BarM – 7.5 BarN – 10 BarCheck Valve LineBA – B piloted from A(Dual line only)Cracking Pressure (Dualline only)K – 3 BarB – 5 BarM – 7.5 BarN – 10 BarDesign Number3014567823