VICKERS Pressure Relief Pressure Control Valve - Eaton

1 RCG-** Model ShownRCT-** Model ShownMarch 1996GB-2481R(C)G(O)-03, 06 and 10; R(C)T(O)-03, 06 and 10 Sectional IllustrationsGeneral DescriptionThe R and RC series valves are of thepressure actuated sliding spool typewhich can be adapted to performvarious circuit functions. Thesefunctions, depending on assembly build,include Relief Valve , sequence Valve andcounterbalance Closed Models, R(C)* SeriesBack Pressure Valve Type 1 Internal drain, directly operated. Usedfor creating back Pressure or foroverload protection in low pressurecircuits up to 35 bar when the secondaryport is connected directly to provided with an integral check itcan be used as a counterbalance orbrake Valve Type 2 External drain, directly operated.

2 Usedto maintain a minimum Pressure at theprimary port for a holding operationwhile permitting Pressure build-updownstream of the secondary Valve Type 3 External drain, remotely is the same as Type 2 exceptthat it is remotely operated. The valvecan be used to sequence independentlyof the primary Valve Type 4 Internal drain, remotely operated. Herethe secondary port must be connecteddirectly to tank; application of externalpressure opens the Valve fully,independent of the primary CharacteristicsTypeSliding spool.. MountingSubplate or manifold.. Pipe mountedOperatingpressure210 bar (3000 psi).

3 Nominal flowUp to 284 L/min.. (75 USgpm)When provided with an integral check itcan be used as a remotely operatedcounterbalance or brake Check Type RCAllows free reverse Remote Control P featureAvailable only on certain R(C)G andR(C)T models with Pressure ranges A,B, D and F. Here low Pressure remotecontrol is achieved via the auxiliary Open Type R(C)*OHere the operation is such that pilotpressure closes the Valve . It is used inspecial counterbalance or Pressure ReliefPressure Control ValveFunctional Symbols and Basic ModelsSurface (Gasket) Mounting RCGT hreaded Port RTThreaded Port RCTBack Pressure Valve ,directly operated, internaldrain, type 1 Sequence Valve , directlyoperated, external drain,type 2 Sequence Valve , remotelycontrolled, external drain,type 3 Unloading Valve , remotelycontrolled, internal drain,type 4 Back Pressure Valve ,directly operated, internaldrain, type 1 Sequence Valve , directlyoperated, external drain,type 2 Sequence Valve , remotelycontrolled, external drain,type 3 Counterbalance Valve ,remotely controlled,internal drain, type 4 Back Pressure Valve ,directly operated.

4 Internaldrain, type 1 Sequence Valve , directlyoperated, external drain,type 2 Sequence Valve , remotelycontrolled, external drain,type 3 Unloading Valve , remotelycontrolled, internal drain,type 4 Counterbalance Valve ,directly operated, internaldrain, type 1 Sequence Valve , directlyoperated, external drain,type 2 Sequence Valve , remotelycontrolled, external drain,type 3 Counterbalance Valve ,remotely controlled,internal drain, type 42a) Functional Symbols for Normally Closed ValvesSurface (Gasket) Mounting RG Surface (Gasket) Mounting RCGOT hreaded Port RTOT hreaded Port RCTON ormally open sequencevalve, remotely controlled,external drain, type 3 Normally open loadingvalve, remotely controlled,internal drain, type 4 Normally open sequencevalve, directly operated,external drain, type 2 Normally open sequencevalve, remotely controlled,external drain, type 3 Normally open counterbalancevalve, remotely controlled,internal drain, type 4 Normally open sequencevalve, directly operated,external drain, type 2 Normally open sequencevalve, remotely controlled,external drain.

5 Type 3 Normally open loadingvalve, remotely controlled,internal drain, type 4 Normally open sequencevalve, directly operated,external drain, type 2 Normally open sequencevalve, remotely controlled,external drain, type 3 Normally open counterbalancevalve, remotely controlled,internal drain, type 4 Normally open sequencevalve, directly operated,external drain, type 2 P Connection P Connection3b) Functional Symbols for Normally Open ValvesSurface (Gasket) Mounting RGOF unctional Symbols for AuxiliaryRemote Control Connection ( P Feature)This option provides a Control pressurerange of nominally of thenormally required Control pressurerange for the A, B and D pressureranges and at for the F pressurerange.

6 This feature is only available forcertain valves with Pressure ranges ofA, B, C and F. It is not available forR(C)G(O)-03 CodeF3 R-(O)1123 Special sealsSee Hydraulic Fluids sectionPressure Control valveIntegral check valveOmit if not requiredType of mountingG = Gasket for subplate or manifoldT = Pipe mountedNormally open valveOmit if not requiredNot available for type 1 valvesNominal Valve size03 =3/8I nominal bore pipe size06 =3/4I nominal bore pipe size10 = 11/4I nominal bore pipe size459**-3(P) Pressure range(For availability see table below)X = 0,7 - 2,1 bar (10 - 30 psi)Y = 1,4 - 4,1 bar (20 - 60 psi)

7 Z = 2,4 - 8,6 bar (35 - 125 psi)A = 5,2 - 17,2 bar (75 - 250 psi)B = 8,6 - 34,5 bar (125 - 500 psi)D = 17,3 - 69,0 bar (250 - 1000 psi)F = 34,5 - 138,0 bar (500 - 2000 psi)Auxiliary low Pressure remotecontrol connectionOnly available for Pressure ranges A, B,D and available for R(C)G(O)-03 if not type1 = Internally piloted, internally drained2 = Internally piloted, externally drained3 = Externally piloted, externally drained4 = Externally piloted, internally drained-C2*-6*7*9** -10**458116781011 Design numberCurrently22, for R(C)*(O)-1023, for RT(O)-03, R(C)G(O)-03/06 and R(C)T(O)-0630, for RCT-03 Subject to change.

8 Installationdimensions remain as shown for designnumbers *0 to *9 port tappings/fixing boltsUA = NPT pipe threadsYUB = G pipe threads(BSPF, ISO,228)UG= Dual metric/inch fixing bolt facility, R(C)G(O) models onlyOmit for RCT-03 (NPT main ports)YCheck with your VICKERS representative for andR(C)T(O)-06/10models onlyPerformance DataMaximum PressuresMain portsY210 bar (3000 psi).. Remote pressurecontrol portsAs above, for main ports.. Auxiliary remotepressure controlport P feature140 bar (2000 psi).. Drain portY(all models)140 bar (2000 psi).. Y The normal outlet of Valve types 1 and 4must be piped to reservoir at atmosphericpressure.

9 The drain port on types 2 and 3should similarly be piped directly toreservoir at atmospheric Pressure . Anypressure at the drain port is additive to thepressure setting of the in brackets ( ) may be omitted. All other features must be designation P feature JPrincipal adjustable pressurerange (bar) and model codereference letterX= YZZAB D= F,1 = X4,1 = Y8,6 = Z,6 = Z,2 = 4,5 = B69 = 38 = 7 - 2,4 - 4,7 - 8,4 - 8,6- 17,2- 34,5,3 - 65 - 130,71,41,72,4 5,2 -8,6 -17,334,5 R(C)GorWithout featureFFFFFFForR(C)TWith featureFFFFJA djustable Pressure range at P feature port is nominally of the A, B and D ranges and of F Recommended Flow RateValve model codeFlow rate L/min (USgpm)R**-03R**-06R**-1045 (12)113 (30)284 (75)

10 Hydraulic FluidsMaterials and seals used in thesevalves are compatible with:Anti-wear petroleum oilsL-HM.. Non-alkyl basedphosphate estersL-HFD.. The extreme operating range is 13 to500 cSt (70 to 2300 SUS) but therecommended running range is 13 to 54 cSt (70 to 250 SUS). For furthertechnical information about fluids seeTechnical Information leaflet B-920 Control RequirementsRecommendations on contaminationcontrol methods and the selection ofproducts to Control fluid condition areincluded in VICKERS publication 9132 or561, VICKERS Guide to SystemicContamination Control .