Check Valves - Vickers

1 Check ValvesDirect and pilot operated Check valve functions for applicationsup to 350 bar (5000 psi) and 227 L/min (60 USgpm)EATON Vickers Screw-in Cartridge Valves V-VLOV-MC001-E1 June 2003G-1 GEATON Vickers Screw-in Cartridge Valves V-VLOV-MC001-E1 June 2003G-2 Check ValvesSection ContentsTypical ApplicationRated FlowModelPressure bar (psi)L/min (USgpm)PageCheck Valves - Introduction, features & G-3 Check Valves , 2 wayCV3-4 ..350 (5000) (NEW) ..8 (2).. G-4CV3 8 ..350 (5000) ..30 (8).. G-6CV1 10 ..350 (5000) (UPGRADED) ..45 (12) .. G-8CV3 10 ..350 (5000) (UPGRADED) ..76 (20) .. G-10CV16 (5000) ..76 (20) .. G-12CV11 (5000) ..114 (30).. G-14CV1 16.

2 210 (3000) ..151 (40) .. G-16CV2 20 ..210 (3000) ..227 (60) .. G-18 Check Valves with Bypass OrificeCV6 10 ..350 (5000) (NEW) ..76 (20) .. G-20CV6 16 ..210 (3000) (NEW)..151 (40) .. G-22 Restrictive Check ValvesRCV3 10 ..350 (5000) (NEW) ..76 (20) .. G-24 Single Pilot Operated Check Valves , Cartridge (3500) ..19 (5) .. G-26 SPC2 10 ..210 (3000) ..23 (6).. G-28 Single Pilot Operated Check Valves , In-line Housing TypeSPC1 10 ..210 (3000) ..45 (12) .. G-30 SPC1 16 ..210 (3000) ..151 (40) .. G-32 SPC1 20 ..210 (3000) ..227 (60).. G-34 Single Pilot Operated Check Valves , Cartridge Type (high pressure) (5000) ..57 (15) .. (5000) ..114 (30) .. G-38 Double Pilot Check Valves , Cartridge TypeDPC2 (3500).

3 19 (5) .. G-40 Double Pilot Check Valves , In-line Housing TypeDPC1 10 ..210 (3000) ..45 (12) .. G-42 DPC11 12 ..350 (5000) (NEW) ..114 (30) .. G-44 DPC1 (3000) ..151 (40) .. G-46 DPC1 (3000) ..227 (60).. G-48 EATON Vickers Screw-in Cartridge Valves V-VLOV-MC001-E1 June 2003G-3 GThis section gives basicspecifications for the fullline of Vickers screw-in cartridge Check Valves . Itspurpose is to provide aquick, convenient referencetool when choosing Vickerscartridge Valves or design-ing a system using Vickers range of directand pilot operated checkvalves provides thehydraulic circuit designerwith a wide selection ofcartridge and in-line pressure ratings areshown for all products featured in this catalog.

4 Thetypical application pressurerating is the maximum recommended operatingpressure for the valve in agiven system. The fatiguepressure rating is the pressure for the valve to befree for infinite life frommetal poppet type Check valve cartridges have hardenedand ground poppets andsharp-edged ground steelseats. This provides anexcellent product that isdirt-tolerant, has reliableseating, and is suitable forfast cycling with long operated checkvalvesCartridges fit into industrystandard cavities and maybe supplied for installation inmanifolds, or be provided instandard housings havingSAE or BSPP ports suitablefor in-line mounting. A wide selection of crackingpressures is available from0,21 to 20,7 bar (3 to 300psi).

5 Thus the opportunityexists to use the Valves notonly as conventional checkbut also as low pressurerelief operated checkvalvesThese Valves are used for: Position load locking As an alternative tocounterbalance valveswhere neither the overrunning loads orrelease speed are factors in the application. The high pressure POC*-10and POC*-12 series ofpilot-to-open Check valvescomplement the CBV*-10and CBV*-12 counterbalance cartridgesand are physically interchangeable with them. The POC s provide a lowcost alternative to load control when the dynamicsof neither overrunning loadsnor load release speed arefactors to be considered inthe design of the hydrauliccircuit for the load to pilot-to-open valvespositively lock a load fromport 1 to port 2 until pilotpressure applied to port 3is sufficient to unseat thevalve.

6 This then permitsflow from port 1 to port load can also bereleased through means ofan optional screw typeoverride. The POC*-10 covers flowup to 60 L/min (15 USgpm).The POC*-12 covers flowup to 114 L/min (30 USgpm). With infinite lifequalification to a fatiguepressure rating of 310 bar(4500 psi), these POCvalves are suitable for usein a broad range of loadcontrol applications withtypical system operatingpressures up to 350 bar(5000 psi). Tailoring of thecircuit to gain energy savings while minimizingshock is obtained throughthe use of several standardcracking pressure rangesfrom 2,0 bar (30 psi) to 7bar (100 psi). When anti-cavitation protection isrequired, the 0,30 bar (5psi) spring should be those applicationswhere pilot pressure maynot always be available, thevalve can be ordered withan optional adjustable and benefits Products in this cataloghave been fatigue testedfor one million cycles at132% or 10 million cyclesat 115% of rated pressure.

7 Simple load holdingdevice. Low cost alternative to more complex solutions whenoverrunning loads are notpresent and / or controlof load release speed isnot required. Provides high operationalefficiency and low springsettings. Valves are offered with awide variety of standardhousings with SAE andBSPP port options in thefollowing configurations: In-line single In-line dual SAE, 4-bolt, code 61 Close coupled, nipplemounted Gasket mounted single Gasket mounted dualThese Valves can also beused in a C 10 3S orC 10 3S cavity. Four standard crackingpressures permit energysavings, while tailoringthe hydraulic systemrequirements to minimizeshock. Unique dual spring designprovides high operationalefficiency and a low pressure spring optionfor effective anti-cavitation protection.

8 Unique design providescompact package andlow pressure drops thatmatch or exceed currentmarket expectations andprovide for excellentrepeatability and stability. 3:1 pilot ratio satisfiessimple load holding application requirements,while providing smoothoperation and longeroperating life. Optional adjustable override releases theload for situations wherepilot pressure is notalways pilot checkAlso offered are SPC2-8and SPC2-10 single pilotcheck Valves with pressures to 240 bar (3500psi) and flows to 23 L/min(6 USgpm). These valvesoperate similar to the POC1product but offer an opposite flow path whichoffers the designer a choiceof pilot operated checkvalve when laying out acustom manifold for easeof productsVickers screw in cartridge Valves are avail-able in a wide range ofmounting configurationsand porting options to provide flexibility in developing are available ineither aluminum 210 bar(3000 psi) or steel 350 bar(5000 psi) are available with achoice of BSPP(ISO 0228/1)

9 Or SAE ValvesEATON Vickers Screw-in Cartridge Valves V-VLOV-MC001-E1 June 2003G-4 DescriptionThe CV3-4-B is a ball type,screw-in cartridge valve21 Functional SymbolProfile ViewRATINGS AND SPECIFICATIONSP erformance data is typical with fluid at 21,8 cSt (105 SUS) and 49 C (120 F)Typical application pressure (all ports) 350 bar (5000 psi)Cartridge fatigue pressure (infinite life)350 bar (5000 psi) Rated L/min (2 USgpm) Free flow cracking pressure @ 1 l/min ( USgpm) 5 0,34 bar (5 psi)Internal leakage, Port 2 to 1 5 drops/min maximum @ 210 bar (3000 psi)Temperature range -40 to 120 C (-40 to 248 F)Cavity C 4 2 Fluids All general purpose hydraulic fluids such as:MIL H 5606, SAE 10, SAE 20, Cleanliness code 18/16/13 Weight cartridge only0,04 kg ( lbs)Seal kit9900174-000 Buna N9900175-00 Viton Viton is a registered trademark of DuPontPressure Drop CurvesCartridge onlyOperationThis valve remains closeduntil the bias is reached atport 1 at which time thepoppet lifts off the seat andallows flow from port 1 toport - USgpm (105 SUS oil @ 120 F) Drop - psiPressure Drop - barPressure vs.

10 Flow - L/min (21,8 cSt oil @ 49 F)EATON Vickers Screw-in Cartridge Valves V-VLOV-MC001-E1 June 2003G-5 GModel CodeCV3 4 (V) B ** ** 00 Dimensionsmm (inch)Torque cartridge in aluminum or steel housingto Nm (6-10 ft. lbs)2453167 FunctionCV3- Check valveSize4- 4 Size21 SealsBlank- Buna-NV- Viton StyleB-Ball type43 Port size000- Cartridge onlyFree flow cracking pressure05- 0,34 bar (5 psi)65 Special features00- None(Only required if valve has special features - omittedif 00 )79/16" HEX7/16 - 20 UNF - 2A12,73 (.501)21,82 (.859) 8,64 (.340)12 Aluminum housings can be used forpressures up to 210 bar (3000 psi) Steel housings must be used for operatingpressures above 210 bar (3000 psi)CV3-4 EATON Vickers Screw-in Cartridge Valves V-VLOV-MC001-E1 June 2003G-6 DescriptionThe CV3 8 P is a directacting, poppet type ValveRATINGS AND SPECIFICATIONSP erformance data is typical with fluid at 21,8 cSt (105 SUS) and 49 C (120 F)Typical application pressure (all ports)350 bar (5000 psi)Cartridge fatigue pressure (infinite life)280 bar (4000 psi)Rated flow30 L/min (8 USgpm) Cracking pressures @ L/min ( USgpm) 4 0,28 bar (4 psi) 10 0,7 bar (10 psi)15 1,03 bar (15psi)25 1,7 bar (25 psi)