力士乐二通流量控制阀2FRM6型

榆次油研、威格士与力士乐系列安装尺寸对照表溢流阀型号对照表
卸荷溢流阀型号对照表
减压阀型号对照表
顺序阀型号对照表
叠加式溢流阀型号对照表
叠加式减压阀型号对照表
叠加式单向节流阀型号对照表
流量控制阀型号对照表
单向阀型号对照表
叠加式单向型号对照表
液控单向阀型号对照表
叠加式液控单向阀型号对照表
六通径电磁换向阀型号对照表
十通径电磁换向阀型号对照表
十六通径电磁换向阀型号对照表
二十通径电磁换向阀型号对照表。

6-way characterised control valve • en • 09.2020 • Subject to changes1 / 8Table of ContentsIntroduction2Relevant information 2Dimensions2Pipeline clearances 2Water quality 2Strainer2Water systems version2Structure of the 6-way characterised control valve 2Range of use 2Characteristic curve 3Allocation of the sequences 3Direction of flow3Marking of the connection gates 3 Motorisation3Design and dimensioning 4Control characteristics 4Design when using glycol 4kvs values4Switching between sequences4Protection of the heating/cooling element (pressure release function) 5Hydraulic circuits6Installation / commissioning / pressure testing / maintenance72 / 86-way characterised control valve • en • 09.2020 • Subject to changes Structure of the 6-way characterised control valve456789231101112136-way characterised control valvesIntroductionRelevant informationThe data, information and limit values listed on the data sheet of the 6-way characterised control valve are to be taken into account and/or complied with, respectively.DimensionsThe dimension of the valve-actuator combination used is dependent not only on the nominal diameter of the valve but also on the actuator used. The dimensions are listed in the R30..-..-..-B.. data sheet.Pipeline clearancesThe minimum clearances between the pipelines and the walls and ceilings required for project planning depend not only on the valve dimensions but also on the selected actuator. The dimensions can be found on the R30..-..-..-B.. data sheet.Water qualityThe water quality requirements specified in VDI 2035 must be adhered to.Strainer6-way characterised control valves are regulating devices. The use of central strainers in the system is recommended in order to prolong their service life for performing control tasks.Water systems versionApplication is permissible only in closed water circuits.1 Connection flange2 Spindle3 Stem packing O-ring (EPDM)4 Closing element 1 with L-bore5 Closing element 2 with L-bore6 Valve seat (PTFE, O-ring EPDM)7 Characterised disc8 Supply sequence 1 connection *9 Return sequence 1 connection *10 Supply sequence 2 connection *11 Return sequence 2 connection *12 Supply heating/cooling element connection *13 Return heating/cooling element connection ** Internal thread according to ISO 7-1DN15: Rp ½", DN20: Rp ¾", DN25: Rp 1"Range of useThe 6-way characterised control valve has been specially developed for use with combined heating and cooling elements. A 6-way characterised control valve performs the function of four2-way valves or two 2-way valves and one changeover valve.H C EelementConventional solution with four 2-way valvesConventional solution with two 2-way valves and one changeover valveSolution with a6-way characterised control valveThe 6-way characterised control valve handles control of hot and cold water.189212111310R30..-..-..-B2/B3R3015-..-..-B1 6-way characterised control valve • en • 09.2020 • Subject to changes3 / 86-way characterised control valvesCharacteristic curveWhen the valve is rotated by 90°, these 3 sequences are run through.kValve tightly closedAllocation of the sequencesAllocation to hot and chilled water is in principle, freely selectable. However, due to installation safety, the definition of an equal allocation for all valves is recommended.!The following mandatory allocation is to be selected when the room temperature controller CRK24-B1 from Belimo is used, due to the control characteristics:Sequence 1 = cooling Sequence 2 = heatingDirection of flowThe direction of flow must be observed.Sequence 1Sequence 2100%Marking of the connection gatesThese are numbered from 1 to 6 for the purpose of secure allocation of the connections during planning and installation.Motorisation6-way characterised control valves are motorised with a rotary actuator. The control must be modulating.R3015-..-..-B1R30..-..-..-B2/B34 / 86-way characterised control valve • en • 09.2020 • Subject to changes 6-way characterised control valvesDesign and dimensioningControl characteristicsTo ensure a valve attains good control characteristics thus a long service life for the control element, it needs to be correctly designed with the correct valve authority.The valve authority av is the benchmark for the control characteristics of the valve in combination with the hydraulic network. The valve authority is the relation between the differential pressure of the fully open valve at nominal flow and the maximum differential pressure for the closed valve. The higher the valve authority, the better the control characteristics. The smaller the valve authority av becomes, the more the operational behaviour of the valve will deviate from the linearity i.e.. the poorer the volumetric flow control will be. In practice the intended av is >0.5.Design when using glycolTo reduce the freezing point of water, salt was added to the water in the past. These werecalled brine applications. Today glycol is used and we talk about cold agents. Depending on the concentration of the cold agent used (type of glycol) and the medium temperature, the density of the water/glycol mixture varies between 1 and 9 percent. The resultant volume deviation is less than the permissible volume tolerance of the valve's k vs value (by ±10 percent according to VDE 2178) and as a rule need not be taken into account even if glycol requires a slightly higher k v value.Depending on the type of glycol, compatibility with the valve materials used must be guaranteed and the permissible maximum concentration (50 percent) must not be exceeded.k vs valuesSince different k vs values are often required for heating and cooling, 6-way characterised control valves are available with different k vs values for sequences 1 and 2. For a full overview, see data sheet R30..-..-..-B.. .Using an additional flow limiterWhen using additional flow limiting valves (e.g. PIQCV C2..QP(T)-.. with manual flow rate setting) or an additional pressure-independent control valve (e.g. motorised PIQCV) atthe system level, it is not necessary to use the flow characterised disc in the 6-way valve in the system to reduce the k vs value. The differential pressure required for operation is kept as low as possible in this manner. In addition, possible noise generation in conjunction with the additional components used is avoided.DN15 max. k vs 0.63 m 3/h: DN15 max. k vs 1.8 m 3/h: DN20 max. k vs 4 m 3/h: DN25 max. k vs 6.3 m 3/h:R3015-P63-P63-B1 R3015-1P8-1P8-B2 R3020-4-4-B2 R3025-6P3-6P3-B3Switching between sequencesAs with all combined heating/cooling elements in 4-pipe systems, mass displacement can occur when using 6-way characterised control valves.Mass displacementWith each switch (from cooling to heating operation or from heating to cooling operation) water is displaced from one circuit to the other. Due to the different medium temperatures, the density of this water differs. Due to the constant volume in the heating/cooling element, the quantity of water displaced has a different mass. When switching from cooling to heating, more mass is shifted then when switching from heating to cooling. This mass displacement can lead to the cooling circuit being emptied.It is important to cater for this normal behaviour. For corresponding recommendations, see the chapter 'Hydraulic circuits'.MediaDue to the mass displacement that occurs, the medium in both circuits needs to have the same properties (glycol concentration). 6-way characterised control valve • en • 09.2020 • Subject to changes 5 / 86-way characterised control valvesProtection of the heating/cooling element (pressure release function)In cases of combined heating/cooling elements, the medium is enclosed in the element when they are in closed status (no heating or cooling). The pressure of the enclosed medium can rise or fall due to changes in medium temperature caused by the ambient temperature. The 6-way characterised control valve have an integrated pressure release function for the purpose of compensating for such pressure changes.Design for pressure releaseThe upper ball of the characterised control valve has a groove that forms a link between the 'Supply Sequence 1' (Gate 1) connection point and the heating/cooling element connected at Gate 2 when the valve is closed.Pressure release Groove for pressure releaseFunction means of the connection to the 'Sequence 1' circuit. No further flow of water takes place after the pressure compensation due to the same absolute pressures in Sequence 1, in the heating and cooling element and in the lower closing element, which closes air-bubble tight.Behaviour in hot or cold operationThe pressure relief function has no influence on the hot or cold operation. When operating sequence 1, the function is on the same side as the desired water flow. When operatingsequence 2, the pressure relief function is not active. A direct mixing of water of the sequences of 1 and 2 is not possible duration operation.k αControl sequence 1Position Valve closedControl sequence 21) Positioning signal for closed position:Operating range drive 2…10 V: Y = 6 Volt Operating range drive 0.5…10 V: Y = 5.25 VoltValve leakage rateEach water circuit is channeled through two valve cones (series circuit). As a result of the continued air-bubble tight closing of the lower closing element 2, the valve continues to exhibit Leakage rate A in accordance with EN 12266-1, even for Sequence 1.Equivalent circuit diagramPressure release6 / 86-way characterised control valve • en • 09.2020 • Subject to changes 6-way characterised control valvesHydraulic circuitsFor correct operation, the following planning instructions need to be complied with, among others:MediaThe medium in both circuits needs to have the same quality (glycol concentration).System pressureThe system pressures in the heating and cooling circuit must have the same value.Possible hydraulic circuitsIn a 4-pipe system with heating and cooling circuits, the effect of mass displacement always exists regardless of the valve used (see chapter on mass displacement). To cater for this behaviour and prevent mass displacement, there are various solutions and corresponding precautionary measures.1. Two expansion vessels– 2. One expansion vessel– One expansion vessel for both circuits. Connection point on the suction side of the pumps.– Pumps at the same height.– Connection line between heating circuit return and cooling circuit return.– The same static pressure on the suction side of the pumps.3. Two expansion vessels in a hydraulic coupling system– The same static pressure on the suction side of the pumps.– Pumps at the same height.– The 2-way valve remains closed during operation.– The 2-way valve will open if the pressures p Heating and p Cooling exhibit a certain difference due to the mass displacement.– The system pressures are balanced.– The 2-way valve is closed again after the compensation.6-way characterised control valve • en • 09.2020 • Subject to changes 7 / 86-way characterised control valvesInstallation/Commissioning/Pressure testing/MaintenanceValve positionThe ball position can be discerned by means of the marking on the top of the spindle.Valve delivery conditionThe valves are delivered ex works as shown with the picture below.Delivery condition conforms to valve position 90°/positioning signal 10 V.Delivery with valve installedFor visualisation purposes, the actuator has two green dots.Only valid for R30..-..-..-B2/B3R3015-..-..-B1 cannot be supplied with the actuator installed ex worksPressure testing Due to the built-in pressure release safety function, the following needs to be observed:Pressure testing with connected heating/cooling elementIf the connected consumer circuit is also to be tested, pressure testing can be performed without additional restrictions in valve positions 'Sequence 1 open' (angle of rotation 0°) or 'Sequence 2 open' (angle of rotation 90°).When tested in closed valve position (45°), note that the connected heating/cooling element is likewise pressurised with the pressure in sequence 1.Pressure testing without connected heating/cooling elementIn valve closed position (45°) the sequence 1 test medium flows via gates 1 and 2. Thisbehaviour does not constitute a malfunction since the valve closes both water circuits reliably due to the air-bubble tightness of the second closing element during operation.Possibilities:– Individual testing of water circuits1. Sequence 1 test with valve in 90° positionNote: Prior to switching, sequence 1 needs to be emptied. 2. Sequence 2 test with valve in 0° positionor– Additional isolation of gate 2Maintenance 6-way characterised control valves are maintenance-free.R3015-..-..-B1R30..-..-..-B2/B3All inclusive.Belimo worldwide: SwitzerlandBELIMO Automation AG Swiss SalesBrunnenbachstrasse 1CH-8340 HinwilTel. +41 (0)43 843 62 12Fax +41 (0)43 843 62 66****************www.belimo.ch。

液压与气动技术实训指导书-图文实训教学不仅能帮助加深理解液压与气压传动中的基本概念，巩固理论知识，其重要意义还在于引导学生在实训的过程中，学到基本的理论和技能，提高学生的动手能力，培养学生分析和解决液压与气动技术中工程实际问题的能力。

本课程实训分为两大部分，一是液压元件拆装实训。

教学的目的是通过元件的拆装实训，使学生对学过的主要元件外观、内部结构，主要零件的形状、材料及其之间的配合要求等方面获得感性认识，从而加深对其工作原理的理解，使学生初步了解和掌握机械拆装的基本常识，了解液压元件维修的一般方法，锻炼机械维修方面的技能，以便在将来实际工作中设计和使用液压系统时，能正确选用和维修液压元件。

二是液压与气动回路、系统实训。

教学的目的是学生在教师的指导下，独立完成对研究对象(如某一理论、元件、系统等)的实训操作，启发与引导学生自己设计实训方案，在指导教师指导下通过分析、讨论与审核后，以小组为单位，独立完成实训。

在此以THPYQ-1实验台为例，介绍几种常用实训的原理、方法、步骤与数据的处理方法。

一、液压元件拆装实训1.拆装注意事项①如果有拆装流程示意图，参考示意图进行拆与装；②拆装时请记录元件及解体零件的拆卸顺序和方向；③拆卸下来的零件，尤其泵体内的零件，要做到不落地、不划伤、不锈蚀等；④拆装个别零件需要专用工具。

如拆轴承需要用轴承起子，拆卡环需要用内卡钳等；⑤在需要敲打某一零件时，请用铜棒，切忌用铁或钢棒；⑥拆卸（或安装）一组螺钉时，用力要均匀；⑦安装前要给元件去毛刺，用煤油清洗然后晾干，切忌用棉纱擦干；⑧检查密封有无老化现象，如果有，请更换新的；⑨安装时不要将零件装反，注意零件的安装位置。

有些零件有定位槽孔，一定要对准；⑩安装完毕，检查现场有无漏装元件。

2.实训用工具及材料钳工台虎钳、内六角扳手、活口扳手、螺丝刀、涨圈钳、游标卡尺、钢板尺、润滑油、化纤布料、各类液压泵、液压阀及其它液压元件等。

（一）液压泵拆装实训1.实训目的通过对各种液压泵进行拆装，使学生对各种液压泵的结构有深入了解，并能依据流体力学的基本概念和定律来分析总结容积式泵的特性，掌握各种液压泵的工作原理、结构特点、使用性能等。

力士乐挖掘机油路介绍黄宗益李兴华目前液压挖掘机有两种油路：开中心直通回油六通阀系统和闭中心负载敏感压力补偿系统，我国国产液压挖掘机大多采用“开中心”系统，而国外著名的挖掘机厂家基本上都采用“闭中心”系统。

闭中心具有明显的优点，目前价格较贵。

国内厂家对开中心系统比较熟悉，而对闭中心系统不太了解，因此有必要来介绍一下闭中心系统，下面介绍力士乐闭中心负载敏感压力补偿（LUDV）挖掘机油路。

力士乐液压挖掘机液压系统如图1所示。

挖掘机液压系统可以看作由以下4部分组成：1.多路阀液压系统（主油路）。

2.液压泵控制液压系统（包括与发动机综合控制）。

3.各液压作用元件液压子系统：包括动臂、斗杆、铲斗。

回转和行走液压系统，还应该包括附属装置液压系统。

4.多路阀操纵和控制液压系统。

图1力士乐液压挖掘机液压系统一．多路阀液压系统多路阀液压系统是液压挖掘机的主油路，它确定了液压泵如何向各液压作用元件的供油方式，决定了液压挖掘机的工作特性。

力士乐挖掘机采用的闭中位负载敏感压力补偿多路阀液压系统的工作原理如图2所示：图2 力士乐挖掘机主油路简图力士乐挖掘机主油路由二个负载敏感压力补偿系统组成：工装油路和回转油路（一）工作装置和行走油路（除回转外）：简称工装油路，采用阀后补偿分流比负载敏感压力补偿系统（LUDV 系统），具有抗饱和功能。

（b ） （c ）图3 力士乐多路阀原理符号图LUDV 每个阀块主要由操纵阀和压力补偿阀组成，其原理符号如图3（a ）所示，为了看清理解阀的原理，把操纵阀进行分解后可知，它实际上是两部分组成：阀的节流部分和阀的换向部分。

阀块原理展开图如图3（b ）所示，压力油进入操纵阀先通过阀节流部分，后经压力补偿阀，最后通过阀换向部分去液压作用元件。

阀后补偿压力补偿阀布置在操纵阀可变节流口之后，由于液压作用元件一般都是双作用，有A 、B 两条油路，为了避免两条油路都设压力补偿阀，因此油路换向部分，必须设在压力补偿阀之后。

RE 18302-07/04.2016, Bosch Rexroth AGGeneral specifi cations 6 way 2 position valve.Directional spool valve with direct solenoid control. Hydraulic / pneumatic pilot , or manual push and twist control available as option.Control spool operated by solenoid, with easily removable coil fastened by a ring nut.Wet pin tube for DC coil, with push rod for mechanical override in case of voltage shortage. Unrestricted 360° orientation of DC coil.Control spool held in normal position by return spring. Optional manual override (push-button or screw type). Connectors available: DIN 43650 – ISO 4400, AMP Junior, DT04-2P (Deutsch), Free leads.Size 10 Series 00Maximum operating pressure 310 bar (4500 psi) Maximum fl ow 140 l/min (36.98 gpm) Ports G 1/2 - G 3/4 - SAE126/2 ways/positions fl ow diverters L 753.... (VS311-VS312-VS315)RE 18302-07Edition: 04.2016Replaces: 02.2016Contents Ordering details 2Symbols 2Functional description 3Technical data 3Characteristic curves5External dimensions and fi ttings 6Electric connection82L753.... (VS311-VS312-VS315) | 6/2 ways/positions fl ow diverters Ordering detailsOrdering details0102030405060708L7530Family01Compact directional valve LType02Flow diverters7Ports03G 1/2 DIN 38524G 3/4 DIN 385251 1/16-12 UN (SAE12)EControl type04Solenoid (coil C 65) without manual override14Solenoid (coil C 65) with push-button type manualoverride4PSolenoid (coil C65) with screw type manual overridezinc plated screw4FSolenoid (coil C65) with screw type manual overridewith stainless steel screw4X Hydraulic / pneumatic control 1)P1 Manual push and twist control H1Spool variants05 6 way / 2 position P1 side6_ Drain type 6A6B6E6F6G06Internal drain●●–●●IExternal drain●●●––E Voltage supply310703010007Without coil––––●0012 V DC●●●●–OB13 V DC–●–●–AD24 V DC●●●●–OC27 V DC–●–●–AC48 V DC–––●–OD Electric connections08Without coils00With coils, without mating connectorDIN EN 175301-803 2)01 With coils, with bi-directional diode, without matingconnector vertical Amp-Junior03 With coils, with bi-directional diode, without matingconnector DT04-2P07 With coils and bipolar sheathed lead350mm (13,8 in) long31●=Available–=Not available SymbolsDrain type IaC1 C41 0C2C3Drain type EaC1 C41 0C2C3S pool variants6B6E6A6G6F1) Minimum pressure 4 bar (58psi) with external drain (E), maximumpressure 200 bar (2901psi). With internal drain (I), at the minimum pressure (4 bar - 58psi), add the working pressure with ratio of 11:1. Example: With working pressure 100 bar (1450psi), minimum pilot pressure is 13.09 bar (190psi) ((100:11) + 4 bar (58psi)).2) For connectors ordering code see data sheet RE 18325-90.Bosch Rexroth AG, RE 18302-07/04.20166/2 ways/positions fl ow diverters| L753.... (VS311-VS312-VS315)Functional description3Functional descriptionA valve basically consists of a housing (1), a control spool(2), a return spring (3) and a solenoid (5). It is designed to connect two inlet lines P1 – P2 (normally a set of hoses) and divert them to either the outlet ports (C1 – C4) with spool in position “0”, when the solenoid is de-energized, or to the outlet ports (C2 – C3) with spool in position “1”, when the solenoid is energized.With the coil de-energized, the return spring (3) pushes back the spool (2) and holds it in position “0”.The coil (5) is fastened to the tube by the ring nut (6).The manual override (6) allows to shift the spool (2) also in case of voltage shortage.An external drain, to be connected to tank, ensures shifting operations also at higher working pressure.Hydraulic / pneumatic pilot control for spool shifting is available upon request.Technical dataMaximum pressure with external drain (“E” type)bar (psi)310 (4500)Maximum pressure with internal drain (“I” type)bar (psi)250 (3625)Maximum pressure with internal drain and6F or 6G schemebar (psi)310 (4500)Maximum fl ow l/min (gpm)140 (36.98)Pilot pressure needed for hydraulic / pneumatic control bar (psi)max 200 (2900) - min 4 (58) with external drain.For versions with internal drain, the pilot pressure required shouldbe at least 11 times higher than inlet pressure (ratio 11:1).Hydraulic fl uidGeneral properties: it must have physical lubricating and chemical properties suitable for use in hydraulic systems such as, for example:Mineral oil based hydraulic fl uids HL (DIN 51524 part 1). Mineral oil based hydraulic fl uids HLP (DIN 51524 part 2). For use of environmentally acceptable fl uids (vegetable or polyglycol base) please consult us.Fluid Temperature°C (°F)–20....+80 (-4....+176) (NBR seals)Permissible degree of fl uid contamination ISO 4572: βx ≥ 75 X = 12 (15)ISO 4406: class 20/18/15NAS 1638: class 9Viscosity range mm2/s 5 (420)Internal leakage with 100 bar (1450 psi) secondary pressure at C cc/min(in3/min)min. 15 (0.9) - max. 40 (2.4)RE 18302-07/04.2016, Bosch Rexroth AG4L753.... (VS311-VS312-VS315) | 6/2 ways/positions fl ow divertersTechnical dataVoltage type DCVoltage tolerance (nominal voltage)%-10 .... +10Duty Continuous, with ambient temperature ≤ 50°C (122°F)Coil wire temperature not to be exceeded°C (°F)150 (302)Insulation class HCompliance with Low Voltage Directive LVD 73/23/EC (2006/95/EC), 2004/108/EC Coil weight with DIN 43650 – ISO 4400 connector kg (lbs) 1.05 (2.3)Voltage V1213242748Voltage type DC DC DC DC DCPower consumption W4444444444Current (nominal at 20 °C (68 °F))A 3.6 3.4 1.8 1.60.9Resistance (nominal at 20 °C (68 °F))Ω 3.2 3.612.816.950.5NoteFor applications with different specifications consult usBosch Rexroth AG, RE 18302-07/04.2016RE 18302-07/04.2016, Bosch Rexroth AG6/2 ways/positions fl ow diverters | L753.... (VS311-VS312-VS315) Characteristic curves5Characteristic curves2 10 20 40 60 80 100 120 140 l/min bar 8765432100 5 10 15 20 25 30 35 37 gpmpsi 1151007550250P r e s s u r e ΔpFlowQDI-DE performance limits0 20 40 60 80 100 120 140 min0 5 10 15 20 25 30 35 37 gpmFlow QVS3111VS312-VS3152Flow across both ways: forward across P1>C1 and reverse across C4>P2Dimensions [mm (inches)] 6L753.... (VS311-VS312-VS315) | 6/2 ways/positions fl ow divertersExternal dimensions and fi ttingsttingsExternal dimensions and fi1 Ports P1, P2, C1, C2, C3, C4.2 The mounting surface fl atness must comply with specifi cations.3 Two through holes reccomended screws M8x45 with strengthclass DIN 8.8.Torque 15 – 16 Nm (11.1–11.8 ft-lb).4 Ring nut for coil locking Ø 34 mm (1.34 inch).Torque 7–8 Nm (5.2 – 5.9 ft-lb ).5 Solenoid tube Ø 25,4 mm (1.00 inch).6 Minimum clearance needed for connector removal.Bosch Rexroth AG, RE 18302-07/04.2016Dimensions [mm (inches)]76/2 ways/positions fl ow diverters| L753.... (VS311-VS312-VS315)External dimensions and fi ttings7 External drain plug available with G 1/4 and SAE 4 port.8 Identifi cation label.9 Optional push-button, 4P type, manual override for spool opening:it is pressure stuck to the ring nut for coil locking.Mat no. R93300342410 Optional screw type manual override, 4F or 4X types, for spoolopening: it is screwed (torque 8-9 Nm (5.9-6.6 ft-lb)) to the tubeas replacement of the coil ring nut. Mat no. R933003713 zincplated, Mat no. R933009577 stainless steel.11 Dimensions of manual version, push and twist type.12 Dimensions of hydraulic / pneumatic piloted version. Pilot portplug available with G 1/4.RE 18302-07/04.2016, Bosch Rexroth AG8Bosch Rexroth AG , RE 18302-07/04.2016L753.... (VS311-VS312-VS315) | 6/2 ways/positions fl ow diverters Electric connectionBosch Rexroth Oil Control S.p.A.Oleodinamica LC Division Via Artigianale Sedrio, 1242030 Vezzano sul Crostolo Reggio Emilia - Italy Tel. +39 0522 601 801Fax +39 0522 606 226 / 601 802***************************************/compacthydraulics© This document, as well as the data, specifi cations and other information set forth in it, are the exclusive property of Bosch Rexroth Oil Control S.p.a.. It may not be reproduced or given to third parties without its consent.The data specifi ed above only serve to describe the product. No statements concerning a certain condition or suitability for a certain application can be derived from our information. The information given does not release the user from the obligation of own judgment and verifi cation. It must beremembered that our products are subject to a natural process of wear and aging.Subject to change.Dimensions [mm (inches)]E lectric connection。

力士乐二通插装阀安全操作及保养规程引言力士乐二通插装阀是一种常用的流体控制设备，广泛应用于化工、冶金、石化、电力、水处理等领域。

为确保使用安全、延长使用寿命，以下列出了力士乐二通插装阀的安全操作及保养规程。

一、安全操作规程1. 安装规程安装前应对设备进行检查，确保设备无损坏。

安装位置应远离易燃易爆危险物质，避免在高温、腐蚀性介质等特殊条件下使用。

当管道内流体为油类、苯等易燃物质时，应按必要的消防要求进行安装和操作。

2. 操作规程2.1 使用前应核对插装阀的型号、规格和使用条件是否符合工作要求，检查零部件、连接螺纹，仪表、控制装置是否正常。

2.2 操作时，应按照流程要求进行，避免使用过大力量或踩踏插装阀。

2.3 不允许在卸下插装阀时，被接管侧的阀门为关闭状态，以防止对管道设备的影响。

2.4 操作时应定期检查插装阀的密封情况，确保密封性良好。

3. 停车规程3.1 停车后，应及时关闭通电部件，使插装阀处于关闭状态。

3.2 每次停车都应及时清理物料的残留粉尘或腐蚀液容器内残留物，保持设备清洁。

3.3 设备停车后，应如实记录停车的原因，并进行维护和保养。

4. 故障处理规程4.1 出现故障时，应先进行报修，并按照故障等级及时进行维修。

4.2 严禁非相关人员进行插装阀的拆卸、改动和维修。

二、保养规程1. 日常保养1.1 定期检查插装阀的密封情况，确保密封性良好。

1.2 定期用专用工具清洗过滤器和涂抹润滑油，保持流线型通道的畅通，并防止沉积物的堆积。

1.3 定期检查仪表的工作状态，并根据需要进行调整或更换。

2. 定期保养2.1 定期对插装阀进行润滑，保持设备的正常工作状态。

2.2 工作360天后，需对插装阀进行全面清洗，检查部件是否磨损或损坏，确保设备处于良好的工作状态。

2.3 液压或气动装置使用一定时间后应定期检查泄漏问题，并及时清洗和更换密封件和管道接头。

结论力士乐二通插装阀作为流体控制设备，其安全操作及保养规程至关重要。

REXROTH力士乐方向阀常用型号和工作原理讲解REXROTH力士乐方向阀是具有两种以上流动形式和两个以上油口的方向控制阀。

是实现液压油流的沟通、切断和换向，以及压力卸载和顺序动作控制的阀门。

靠阀芯与阀体的相对运动的方向控制阀。

有转阀式和滑阀式两种。

按阀芯在阀体内停留的工作位置数分为二位、三位等;按与阀体相连的油路数分为二通、三通、四通和六通等;操作阀芯运动的方式有手动、机动、电动、液动、电液等型式。

REXROTH力士乐方向阀工作原理：六通方向阀主要由阀体、密封组件、凸轮、阀杆、手柄和阀盖等零部件组成（图1）。

阀门由手柄驱动，通过手柄带动阀杆与凸轮旋转，凸轮具有定位驱动与锁定密封组件的开启与关闭功能。

手柄逆时针旋转，两组密封组件分别在凸轮的作用下关闭下端的两个通道，上端的两个通道分别与管道装置的进口相通。

反之，上端的两个通道关闭，下端两个通道与管道装置的进口相通，实现了不停车换向。

REXROTH力士乐方向阀特点：1、先导式2级比例方向控制阀，无集成电子元件（OBE）2、控制体积流量的方向和大小3、通过带中心螺纹和可拆卸线圈的比例电磁阀驱动4、用于板结构：根据ISO 4401的连接位置5、辅助驱动装置，可选6、以弹簧为中心的阀芯REXROTH力士乐方向阀分类：1、机动方向阀，机动方向阀又称行程阀。

2、电磁方向阀，电磁方向阀是利用电磁吸引力操纵阀芯换位的方向控制阀。

3、电液方向阀，电液方向阀是由电磁方向阀和液动方向阀组成的复合阀。

4、手动方向阀，手动方向阀是用手推杠杆REXROTH力士乐方向阀优点：动作准确、自动化程度高、工作稳定可靠，但需附设驱动和冷却系统，结构较为复杂；阀瓣式结构则较简单，多用于流量较小的生产工艺上。

在石油、化工、矿山和冶金等行业中，六通方向阀是一种重要的流体换向设备。

该阀安装在稀油润滑系统输送润滑油的管道中。

通过变换密封组件在阀体中的相对位置，使阀体各通道连通或断开，从而控制流体的换向和启停。