Pilot Operated Check Valve - Eaton

1 SystemStak Pilot Operated Check Valve Series DGMPC-H8. General Description General The DGMPC hydraulic Operated Check Valve is of a sandwich Features: plate design. They are used for leak-free closure of one or Industry Standard Mounting, ISO 4001-8, NFPA T M both service ports, even for long periods of time. Free flow R1 and ANSI B D08 occurs from A1 to A2 or B1 to B2. Flow in the opposite For use in vertical stacking assemblies direction is blocked. The fluid flows from A1 to A2, the piston (1) is pressurized and is pushed to the right, thereby opening For the leak free closure of one or both service ports the ball poppet (2) which then opens the main poppet (3).

2 In order to ensure correct closing of the Valve , the service ports of the directional Valve must be connected to tank in the neutral position (see typical circuit). 1 Piston 4 2 Ball Poppet 3 Main Poppet 4 Area A1. 5 Area A2. 1 2 3 6 Area A3. 6 5. A1 B1. A2 B2. Model TypicalCode Circuit Symbols (F3) A2. DGMPC. B2. H8 AB * A2. (BA) (*). B2. 10 A2 B2. 1 2 3 4 5 6 7 8. 1 Seal Options 2 Stack module, piloted 5 Cracking Pressure 7 Cracking Pressure (Dual Operated Check Valve K 3 Bar line only). F3 Fluorocarbon seals, for A2. Phosphate B2 (class Ester L 5 Bar K 3 Bar A1 B1 A1. M Bar B1 A1. L 5 Bar B1. L - HFD) 3 Size N 10 Bar M Bar Blank Nitrile, for Mineral oil AB*- BA*.

3 H8- ISO 4001-8. AB* N 10 BarBA*. Anti-wear hydraulic oilA1. (class L -B1. HM), 6 Check Valve Line Invert emulsion 4 Check Valve Line 8 Design Number P (classA L - HFB). B Water BA B piloted from A. AB A piloted from B (Dual line only) 10. glycol (class L - HFC). BA B piloted from A. P T (Single line only). P-2 Eaton SystemStak valves Size 08 E-VLVI-SS001-E1 October 2015. Functional Symbols A2 B2. Typical Circuit Symbols A2 B2 A2 B2 A2 B2. A2 B2 A1 B1 A1 B1 A1 B1. AB*- BA* AB* BA*. A1 B1. A B. P T. Operating Data Technical Data Maximum Flow (L/min) 450. Maximum Operating Pressure (bar) 315. Cracking Pressure See Characteristic Curves graph page 3. Area Ratio A1/A2 = 1 ;A3/A2 = 1 Fluid Mineral oils or phosphate ester Fluid Temperature Range (0C) -20 to 80.

4 Fluid Viscosity Range (mm2/S) to 500. Fluid Cleanliness Level (ISO) 19/17/14. Weight (Kg) 12. Performance Data 30 N. Pressure Drop (bar). Characteristic Curves Solid Line (measured at v = 41mm2/s A1 - A2; B1 - B2 25 M. and t = 50 C) L. 20. Dotted Line K. A2 - A1; B2 - B1 15. 10. 5. 0 50 100 150 200 250 300 350 400 450. Flow in L/min Cracking Pressure: K 3 bar P. L 5 bar M bar N 10 bar Eaton SystemStak valves Size 08 E-VLVI-SS001-E1 October 2015 P-3. Installation Dimensions (Dimensions in mm). 1. 270. 270. 240. 3. 100. 59. 5. 4. 300. 2. 2 x 8. 6. 4. T P Y. L. 117. 92. X A B. 46. 53. 77. 130. Required surface finish of mating face 1 Cracking pressure 3 bar or 5 bar, Check Valve on both ports A and B.

5 2 Cracking pressure bar or 10 bar, Check Valve on both ports A and B. Cracking pressure bar or 10 bar, Check Valve on port A. Cracking pressure bar or 10 bar, Check Valve on port B. 3 Name plate 4 Valve mounting holes, 6 x 15mm 5 Locating pins 6 Locating pin hole Mounting bolts: 1/2 -UNC, SAE, Grade 8; M14, ; ISO 898, Class Torque 150 lb-ft (250 Nm). O-rings: 27mm x 3mm for ports A,B,P and T. P O-rings: 19mm x 3mm for ports X,Y, and L. P-4 Eaton SystemStak valves Size 08 E-VLVI-SS001-E1 October 2015. SystemStak Throttle Valve with Check Series DGMFN-H8. General Description at one or two actuator ports. Two symmetrically arranged throttle/ Check valves limit flow (by means of adjustable Features: throttle spools) in one direction and permit free return flow in Industry standard mounting, ISO 4401-8, the other direction.

6 NFPNA-T-3 . , ANSI B D08. Sandwich plate design Main flow limiting Limiting of main flow of two actuator ports The double throttle/ Check Valve is fitted between the directional Valve and the subplate to change the speed of an Meter-in or meter-out control actuator (main flow limiting). General DGMFN valves have double throttle/ Check valves in a sandwich plate design. They are used to limit main flow 4 5. 3. 2. 1. 1 Throttle Adjustment Screw 2 Spring 3 Spool 4 Valve Body 5 O-Ring Model Code F3 DGMFN H8 * A2W-B2W 10. 1 2 3 4 5 6. 1 Seal Options 2 Stack module, throttle 4 Direction of flow 5 Control line (Wrench Valve with Check control adjustment). F3 Fluorocarbon seals, A B A B A B A Both Bport A and B.

7 For Phosphate Ester Y Meter out (class L - HFD) X Meter in 3 Size Blank Nitrile, for Mineral oil YX Meter out A Meter-out A, meter in control B 6 control A Meter-in Design number Anti-wear hydraulic H8 ISO 4001-8. Meter-in Meter-out XY Meter B Meter-in in A, YX. control: meterBout B. Meter-out control: XY. oil (class L - HM), Invert emulsion (class L - HFB) Water P. glycol (class L - HFC). Eaton SystemStak valves Size 08 E-VLVI-SS001-E1 October 2015 P-5. Functional Symbols A B A B A B A B. A Meter-out control A Meter-in control Meter-in Meter-out B Meter-in control: YX B Meter-out control: XY. Operating Data Technical Data Maximum Flow (L/min) 350. Maximum Working Pressure (bar) 315.

8 Fluid Mineral oils or phosphate ester Fluid Temperature Range (0 C) -20 to + 80. Fluid Viscosity Range (mm2/S) to 500. Fluid Cleanliness Level (ISO) 19/17/14. Weight (Kg) 8. Performance Data Throttle flow pressure drop DGMFN-H8. Check free flow pressure drop DGMFN-H8. Pressure Drop in bar 4 5 6 7 8 40. 250. Characteristic Curves 30. 20. (measured at 200. 10. v = 41 mm2 s and 9. t = 50 C) 150 0 60 12 0 1 80 240 30 0 360. Flow in L/min Throttle setting in turns Pressure Drop in bar 100. 80 10. 60. 40 11. 12. 20. 13. 10 15. 5 17. 1. 0 50 100 150 200 250 300 350. P. P-6 Eaton SystemStak valves Size 08 E-VLVI-SS001-E1 October 2015. Installation Dimensions (Dimensions in mm).

9 117. 268. 188. 55. 6. 1. 2 3. 4. 4. 53. 2 x 8. 5. 8. T P Y. L. 92. A B. X 73. 46. 19. 7 77 6 x 15. 6. 130 Required surface finish of mating face 1 Name plate 2 Screw for flow adjustment 3 Turn anti-clockwise = increases flow, turn clockwise = decreases flow 4 Two locating pins 5 Two locating pin holes 6 Valve mounting holes 7 O-ring ports A,B,P,T. 8 O-ring ports X,Y,L. Mounting bolts: -UNC, SAE, Grade 8; M14, ; ISO 898, Class Torque 150 lb-ft (250 Nm). O-Ring: 27mm x 3mm for port A,B,P and T. O-Ring: 19mm x 3mm for port X,Y, and L P. Eaton SystemStak valves Size 08 E-VLVI-SS001-E1 October 2015 P-7. Single Station Subplates & Mountings DGSM-8. General Data Mounting Bolts for Modular valves Before beginning to assemble individual modular valves , Mounting the various combinations of modular valves in mating surfaces must be undamaged and completely clean in vertical assemblies will require bolt kits of different lengths.

10 Order to ensure a perfect seal. These lengths can be determined from the Bolt Length/Kits Selection Chart (below) which indicates the height of the Single Station Subplates various modules. Mounting bolts provided by the customer DGSM single station subplates are designed for individual should be SAE grade 7 or better. mounting of one modular Valve system. Bolt Kits for Modular Mounting Mounting Pad A range of bolt kits is available for mounting the various When a subplate is not used, a machined pad (as indicated modules, normally topped with a DG5S-8, DG3S-8 or by subplate shaded area) must be provided for mounting. Pad DG17S-8 directional control Valve . As the modules are of must be flat within 0,013 mm (.)