2022年直动式溢流阀分享 .pdf
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1、1/16Pressure relief valve,direct operated Type DBDRE 25402/08.08Replaces:05.06Table of contentsContents PageFeatures 1Ordering code 2,3Function,section,symbol 4Technical data 5General notes 5Characteristic curves 6Unit dimensions:Threaded connection 7Unit dimensions:Cartridge valve 8,9Unit dimension
2、s:Subplate mounting 10,11Type-tested safety valves type DBD./.E,component series 1X,to Pressure Equipment Directive 97/23/EC(in the following,PED in short)Ordering code 12Unit dimensions 12Technical data 13Characteristic curves 13Safety notes 14 to 16Features As screw-in cartridge valve For threaded
3、 connection For subplate mounting Adjustment types for pressure adjustment,optional:H5585Information on available spare parts: 6 to 30Component series 1X9150 psiMaximumflow330l/min87 US gpm名师资料总结-精品资料欢迎下载-名师精心整理-第 1 页,共 16 页 -2/16 Bosch Rexroth AG HydraulicsType DBD RE 25402/08.08Ordering codeDBD1X=
4、AvailablePressure relief valve,direct operatedType of adjustment for pressure adjustmentSize681015202530=S1)=HHand wheel 2)=H1,3,5)=ASize=6=8=10=15=20=25=30E.g.(Port)G1/4G3/8G1/2G3/4G1G11/4G11/2=10Type of connectionAs screw-in cartridge valve=KFor threaded connection 4)=GFor subplate mounting=PCompo
5、nent series 10 to 1Z=1X(10 to 1Z:unchanged installation and connection dimensions)Pressure rating 6)Pressure setting up to 25 bar 362 psi=25Pressure setting up to 50 bar 725 psi=50Pressure setting up to 100 bar 1450 psi=100Pressure setting up to 200 bar 2900 psi=200Pressure setting up to 315 bar 456
6、8 psi=315 Pressure setting up to 400 bar 5800 psi=400Pressure setting up to 630 bar 9150 psi 7)=630For explanation of footnotes,see page 3!名师资料总结-精品资料欢迎下载-名师精心整理-第 2 页,共 16 页 -Standard types and components are shown in the EPS(standard price list).Hydraulics Bosch Rexroth AGRE 25402/08.08 Type DBD3/
7、161)With sizes 15 and 20,only available for pressure ratings 25,50 or 100 bar.2)Only available for pressure ratings 25,50 or 100 bar.3)Key with Material no.R900008158 is included in the scope of supply.4)Not available for type-tested safety valves of sizes 8,15 and 25.5)Not available for type-tested
8、 safety valves.6)For the selection of the pressure rating,please observe the characteristic curves and notes on page 6!7)For versions“G“and“P“,only available as“SO292“,see pages 7 and 10!*FurtherdetailsincleartextPEDNo code=WithouttypeexaminationE=Type-tested safety valve in accordance with PED 97/2
9、3/ECPipe connectionNo code=Pipe thread to ISO 228/112=SAE threadSeal materialNo code=NBR sealsV=FKM seals(other seals on request)Attention!Observe compatibility of seals with hydraulic fluid used!名师资料总结-精品资料欢迎下载-名师精心整理-第 3 页,共 16 页 -TPTP51236TPTP5124PT4/16 Bosch Rexroth AG HydraulicsType DBD RE 2540
10、2/08.08Pressure relief valves of type DBD are direct operated seat valves.They serve to limit a system pressure.These valves basically consist of sleeve(1),spring(2),pop-pet with damping piston(3)(pressure rating 25 to 400 bar)or ball(4)(pressure rating 630 bar)and adjustment element(5).The system p
11、ressure setting can be infinitely varied by means of adjustment element(5).Spring(2)presses poppet(3)or ball(4)onto its seat.Channel P is connected to the system.The pressure prevailing in the system acts on the poppet area(or ball).When the pressure in channel P rises above the value set on spring(
12、2),poppet(3)or ball(4)opens against spring(2).Hy-draulic fluid can now flow from channel P into channel T.The To obtain good pressure settings over the entire pressure range,the entire pressure range was subdivided into 7 pres-sure ratings.A pressure rating corresponds to a certain pressure.Type DBD
13、S.K1X/Version for pressure rating 25 to 400 bar(poppet seat valve)SymbolType DBDH 10 K1X/Version for pressure rating 630 bar(ball seat valve,NG10 only)Function,section,symbol名师资料总结-精品资料欢迎下载-名师精心整理-第 4 页,共 16 页 -Hydraulics Bosch Rexroth AGRE 25402/08.08 Type DBD5/16Technical data (for applications ou
14、tside these parameters,please consult us!)HydraulicMaximumoperatingpressure Inletbar psi400 5800630 9150400 5800315 4568 Outletbar psi315 4568315 4568315 4568315 4568Maximumflow(standardvalves)See characteristic curves on page 6Hydraulic fluidN 51524 1);fast bio-de-gradable hydraulic fluids to VDMA
15、24568(see also RE 90221);HETG(rape seed oil)1);HEPG(polyg-lycols)2);HEES(synthetic esters)2);other hydraulic fluids on requestHydraulic fluid temperature range C F 30 to+80 22 to+176(NBR seals)15 to+80 5 to 176(FKM seals)Viscosity rangemm2/s SUS10 to 800 60 to 3710hydraulic fluid-cleanliness class t
16、o ISO 4406(c)Class 20/18/15 3)1)Suitable for NBR and FKM seals2)Suitable only for FKM seals3)The cleanliness classes specified for components must be adhered to in hydraulic systems.Effective filtration prevents malfunction and,at the same time,prolongs the service life of components.For the selecti
17、on of filters,see data sheets RE 50070,RE 50076,RE 50081,RE 50086,RE 50087 and RE 50088.GeneralSizeNG6 and 81015 and 2025 and 30WeightSee pages 7,9 and 11Installation positionOptionalAmbient temperature range C F 30 to+80 22 to+176(NBR seals)15 to+80 5 to 176(FKM seals)Minimum strength of housing ma
18、terialsHousing materials must be selected so that sufficient safety is provided under all conceivable operating conditions(e.g.with regard to compressive strength,thread stripping strength and tightening torques).For deviating technical data for type-tested safety valves,see page 13.pressure of the
19、valve set by means of the adjustment ele-ment.General notesExample:Pressure adjustment of the valve by means of spring pre-tensioning (item 2 on page 4)pspring=200 barHydraulicbackpressureinportT:phydraulic=50 barresponse pressure=pspring+phydraulic=250 bar名师资料总结-精品资料欢迎下载-名师精心整理-第 5 页,共 16 页 -145040
20、03002001005010203040500204681013.206526010001220003000400050006000450400200300100505010015020025000652601000200030004000500060001002030405066605004003002001005020406080100120040812162031.724001000200030004000500060002860065070008000942713503002005010010020030035000050760100020003000400015025092.510
21、20 3040 506070 806/16 Bosch Rexroth AG HydraulicsType DBD RE 25402/08.08Flow in l/min US gpmFlow in l/min US gpmFlow in l/min US gpmFlow in l/min US gpmOperatingpressureinbarpsiOperatingpressureinbarpsiOperatingpressureinbarpsiOperatingpressureinbarpsiNG6NG15 and 201=lowest settable pressure Attenti
22、on!The characteristic curves are valid for output pressure=zero over the entire flow range and were measured without housing resistance!The characteristic curves are only valid under the specified ambient and temperature conditions.It must be noted that deviations in the boundary conditions have an
23、influence on the characteristic curve!The characteristic curves refer to the given pressure ratings(e.g.200 bar).The greater the difference between the set pressure value and the nominal pressure rating(e.g.400 bar(=version“SO292“).For dimensions,see D4,for tightening torques,see table belowFor vers
24、ions and dimensions of the adjustment elements,see pages 8 and 9Tightening torques MA in Nm ft-lbsfor screws 1)NGB1B2?D1D2?D3D4Plug screw(4)Pipe fittings645 1.7760 2.3625 0.98M66,6 0.26G1/430 2260 44860 2.3680 3.1528 1.10M89 0.35G3/840 2990 661060 2.3680 3.1534 1.34M89 0.35G1/260 44130 951570 2.7610
25、0 3.9442 1.65M89 0.35G3/480 59200 1472070 2.76100 3.9447 1.85M89 0.35G1135 99380 28025100 3.94130 5.1256 2.21M1011 0.43G1 1/4480 354500 36830100 3.94130 5.1265 2.56M1011 0.43G1 1/2560 413600 442NGH1H2L1L2L3L4L5L6T1T2Weight,ca.in kg lbs625 0.9840 1.5780 3.154 0.1615 0.5955 2.1740 1.5720 0.7910 0.3912
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