Check Valves. VC Series - Cartridge Mounting 500 Bar. Innovative Fluid Power. Bulletin 86624

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1 VC Series - Cartridge Mounting 500 ar Innovative Fluid Power ulletin Issue

2 VCC 500 ar General Information Check Valve with Standard Top Cap Section View with Standard Poppet Maximum Working Pressure Fluid Fluid Viscosity Limits Port Port Port Port Y 500 ar 500 ar 460 ar 35 ar Mineral Oil to DIN for H-LP-Oils, consult Oilgear Towler for other fluids 10 cst (Minimum), 300 cst (Maximum) Fluid Temperature Range -20 to 70 C Operational Temperature Range -20 to 70 C, consult Oilgear Towler when operating outside this range Mounting ased upon ISO 7368 Filtration etter or equal to ISO 4406, 18/16/12 ( NS 1638 Level 8 ) Flow Path Nominal Flow Spring Load at Cracking Chokes Mounting Position to From 100 L/min to 7200 L/min vailable with Zero, 0.5, 1.0, 2.0 and 3.5 ar 0, 0.1, 1.0, 9.9 mm. Further variations available, consult Oilgear Towler Unrestricted apart from when no Spring is used (Vertical position only) Valve Code Flow for 3.5 ar Pressure Drop Including lock, Pressure Drop to 100% Opening, not including Spring Valve Size (mm) 06C 16 08C 25 09C 32 10C 40 12C 63 13C 80 14CM 100 3C 130 L/min Weight kg C urley Road 2/11

3 VCC 500 ar Functional Description Check valves are two port valves that allow flow from to only, with no reverse flow permitted. The Oilgear Towler range of Check Valves are of the slip-in cartridge type, available with cracking pressures up to 3.5 ar. Using standard cartridge centres based on ISO 7368, they are capable of working at pressures up to 500 ar. The conventional check valve design is used in most applications and can only rotate around the centreline, and so seating remains positive. The inherent advantage of precision machining of seats ensures that in service the controlled width of the seat is retained and therefore lifting pressure remains constant throughout the life of the valve. The large area available in the spring cavity and the long guide with small clearances ensures good seating. Standard Design Poppet In Sleeve The standard check valve assembly consists of a top cap and an Oilgear Towler standard poppet with internal balance. Variations of the conventional poppet allow for different options of top cap assembly and flow control. Summary of Features Long guide on poppet with small clearances to ensure good seating Lifting pressure remains constant throughout life of valve Metal-to-metal seat Standard Check Valve Standard Poppet, Code C No djustment, Code N Symbol Valve Type 37 urley Road 3/11

4 VCC 500 ar Options Check Valve (External Drillings) If required, the poppet can be left undrilled for remote operations. The check valve uses external drillings in the top cap to connect correctly. This type of poppet can also be combined with an adjustable lift. Undrilled Poppet, Code Symbol Valve Type No djustment, Code N djustable Lift The standard poppet is available with an adjustable lift to control the flow by restricting the valve opening. The threaded adjusting screw can be positioned to the desired height, which will then limit the opening of the poppet. It cannot be adjusted under pressure. Standard Poppet, Code C djustable Lift, Code Variable ypass Orifice The check valve can also be supplied with an externally adjustable bypass orifice. This is used to control bypass flow in the to direction. Standard Poppet, Code C Variable ypass, Code Y 37 urley Road 4/11

5 VCC 500 ar Options Fixed ypass Orifice The standard Check Valve can be supplied with a fixed ypass Orifice, where the poppet is supplied with an orifice to control bypass flow ( to ). Standard Poppet with ypass Orifice Code No djustment Code N Fixed ypass Orifice with djustable Lift check valve with fixed bypass orifice can also be supplied with an adjustable lift to restrict the valve opening. Standard Poppet with ypass Orifice Code djustable Lift, Code LT Y Pilot Operated LT The check valve is available with pilot operation as an option, allowing reverse flow ( to ) when operated. Valve area ratio of 12 to 1. Volume of pilot fluid required for full stroke, 3.3 ml. Pilot Operated Poppet Code V Pilot Operated Code P Y 37 urley Road 5/11

6 VCC 500 ar Performance Data Pressure/Flow Curve 16 mm to 50 mm ll testing generally in accordance with S4062 part 1 up to a max flow of 1000 L/min. Fluid - mineral oil, 32 centistokes at 40 C. ll valves tested without springs - Zero Spring Load DIFFERENTIL PRESSURE (R) mm - 06C 25mm - 08C Valve complete (including block) Valve only FLOW (LITRES/MIN) DIFFERENTIL PRESSURE (R) mm - 09C 40mm - 10C 50mm - 11C Valve complete (including block) Valve only FLOW (LITRES/MIN) 37 urley Road 6/11

7 VCC 500 ar Performance Data Pressure/Flow Curve 63 mm to 130 mm ll testing generally in accordance with S4062 part 1 up to a max flow of 1000 L/min. Fluid - mineral oil, 32 centistokes at 40 C. ll valves tested without springs - Zero Spring Load DIFFERENTIL PRESSURE (R) mm - 12C 80mm - 13C Valve complete (including block) Valve only FLOW (LITRES/MIN) DIFFERENTIL PRESSURE (R) mm - 14CM 130mm - 3C Valve complete (including block) Valve only FLOW (LITRES/MIN) 37 urley Road 7/11

8 VCC 500 ar Dimensions Standard Top Cap, No djustment djustable Lift ypass Orifice (Variable) Pilot Operated Valve Size Dimensions (mm) olt Torque (Nm) Code mm D1 H1 H2 (Option) H3 H4 Grade C sq M C sq 38 Variable djustable Lift ypass Orifice Pilot Operated M C sq mm 102 mm 102 mm M C sq C sq M C sq C 80 Ø N/ 14CM 100 Ø M C 130 Ø urley Road 8/11

9 VCC 500 ar Mounting, Cavity and Top Cap Details ISO 7368 ll Cavities Sizes 06C - 12C (16-63 mm) Size (mm) d1 d2 d3 d4 t1 t2 t3 t4 t5 t7 t8 R1 R2 06C (16) C (25) C (32) C (40) C (63) U W Size (mm) d5 d6 d7 t6 t10 b1 m1 m2 m3 m4 06C (16) 6 M C (25) 8 M C (32) 10 M C (40) 10 M C (63) 16 M urley Road 9/11

10 VCC 500 ar Mounting, Cavity and Top Cap Details ISO 7368 ll Cavities Size 13C (80mm) Size 14CM (100mm) Size 3C (130mm) Size (mm) d1 d2 d3 d4 t1 t2 t3 t4 t5 t7 t8 R1 R2 13C (80) C (100) C (130) U W Size (mm) d5 d6 d7 t6 t10 b1 m1 13C (80) 20 M CM (100) 16 M C (130) 20 M urley Road 10/11

11 VCC 500 ar Ordering Codes V C S - S M * - Standard Option 1 Unit V Valve 2 asic Form C Check 3 Valve Type C Standard Poppet Undrilled, requires External Drillings s C with ypass Orifice V Poppet for Pilot Operation (Size 16-63mm only) 4 Valve Design S Sliding Poppet and Metal Seats 5 Nominal Size mm mm mm mm mm (Max Working Pressure 420 ar only) mm mm (Mounting Pattern C only) mm (Mounting Pattern CM only) mm 6 Mounting Pattern C Slip-In Cartridge based on ISO 7368 C Size 13 only CM Size 14 only 7 Max Working Pressure ar (Nominal Size 11 only) ar 8 Poppet and Sleeve S Standard * 9 Spring Load at Cracking ar ar * ar ar (Size 16-63mm only) 00 No Spring, 0 Pressure - Consult Oilgear Towler for other variations 10 Top Cap ssembly N No djustment, Standard * (For Valve Types C, and only) P djustable Lift (Size 16-40mm only) (For Valve Types C, and only) Variable ypass Orifice (Size 16-40mm only) (For Valve Type C only) Pilot Operated (For Valve Type V only) 11 Orifice Size 00 No Orifice, Standard * (For Valve Types C, and V only) mm (For Valve Type only) mm (For Valve Type only) mm (For Valve Type only) - Consult Oilgear Towler for other variations 12 Dimensions M Metric 13 Seals una * V E Z Viton E.P.D.M Special, Consult Oilgear Towler 14 Design Series 1 ssigned by Factory