[{"data":1,"prerenderedAt":769},["ShallowReactive",2],{"catalog:meta":3,"guides:page:\u002Finjection-molding-machine-parts\u002Fhydraulics\u002Fproportional-valve:*":258,"guides:topics:hydraulics:\u002Finjection-molding-machine-parts\u002Fhydraulics\u002Fproportional-valve:path,title,short":519,"guides:page:\u002Finjection-molding-machine-parts\u002Fhydraulics:diagram":608,"diagram:id:valve-manifold":610,"catalog:parts::HY-CV-04":760},{"categories":4,"machines":132,"zones":212,"totals":255},[5,35,59,122],{"id":6,"name":7,"slug":8,"description":9,"partCount":10,"subcategories":11},"EC","Electrical Components","electrical","Electrical systems and components for injection molding machines including heaters, thermocouples, servo motors, and controllers.",11,[12,17,22,27,31],{"id":13,"name":14,"slug":15,"partCount":16},"EC-CBC","Circuit Boards & Controllers","circuit-boards",4,{"id":18,"name":19,"slug":20,"partCount":21},"EC-CE","Connectors & Cables","connectors-cables",2,{"id":23,"name":24,"slug":25,"partCount":26},"EC-GEP","Servo Motors & Drives","servo-motors",1,{"id":28,"name":29,"slug":30,"partCount":21},"EC-HT","Heaters","heaters",{"id":32,"name":33,"slug":34,"partCount":21},"EC-SF","Safety Components","safety",{"id":36,"name":37,"slug":38,"description":39,"partCount":40,"subcategories":41},"HY","Hydraulic Components","hydraulic","Complete range of hydraulic system components including pumps, valves, motors, and pressure controls for injection molding machines.",14,[42,46,51,55],{"id":43,"name":44,"slug":45,"partCount":26},"HY-AU","Accumulators","accumulators",{"id":47,"name":48,"slug":49,"partCount":50},"HY-CV","Control Valves","control-valves",6,{"id":52,"name":53,"slug":54,"partCount":26},"HY-MO","Monitors & Gauges","monitors-gauges",{"id":56,"name":57,"slug":58,"partCount":50},"HY-PW","Pumps & Motors","pumps-motors",{"id":60,"name":61,"slug":62,"description":63,"partCount":64,"subcategories":65},"MC","Mechanical Components","mechanical","Mechanical parts and assemblies including barrels, screws, tie bars, bushings, platens, and clamping components.",42,[66,71,75,80,85,89,93,97,101,105,109,114,118],{"id":67,"name":68,"slug":69,"partCount":70},"MC-BC","Barrels & Cylinders","barrels-cylinders",5,{"id":72,"name":73,"slug":74,"partCount":16},"MC-SB","Screw Barrels & Seals","screws",{"id":76,"name":77,"slug":78,"partCount":79},"MC-TC","Tie Bars & Columns","tie-bars",7,{"id":81,"name":82,"slug":83,"partCount":84},"MC-GZ","Bushings & Guides","bushings-guides",8,{"id":86,"name":87,"slug":88,"partCount":26},"MC-PP","Platens","platens",{"id":90,"name":91,"slug":92,"partCount":70},"MC-TL","Toggle & Links","toggle-links",{"id":94,"name":95,"slug":96,"partCount":21},"MC-CC","Clamping Components","clamping",{"id":98,"name":99,"slug":100,"partCount":21},"MC-GMP","Tools & Accessories","tools-accessories",{"id":102,"name":103,"slug":104,"partCount":21},"MC-ES","End Caps & Plates","end-caps",{"id":106,"name":107,"slug":108,"partCount":26},"MC-SR","Seals & Rings","seals-rings",{"id":110,"name":111,"slug":112,"partCount":113},"MC-JM","Joints & Mounts","joints-mounts",3,{"id":115,"name":116,"slug":117,"partCount":26},"MC-SG","Safety Guards","safety-guards",{"id":119,"name":120,"slug":121,"partCount":26},"MC-CR","Clamping Mechanism","clamping-mechanism",{"id":123,"name":124,"slug":125,"description":126,"partCount":113,"subcategories":127},"O","Other Components","other","Additional components including filters, cooling systems, lubrication parts, and other auxiliary equipment.",[128],{"id":129,"name":130,"slug":131,"partCount":113},"O-TC","Filters & Cooling","filters-cooling",[133,143,161,172,180,188,194,200,205],{"id":134,"name":135,"slug":134,"series":136,"partCount":142},"haitian","Haitian International",[137,138,139,140,141],"Mars Series (MA)","Jupiter Series (JU)","Zhafir Venus Series (VE)","Zhafir Zeres Series (ZE)","Zhafir Jeres Series (JE)",68,{"id":144,"name":145,"slug":144,"series":146,"partCount":160},"yizumi","Yizumi",[147,148,149,150,151,152,153,154,155,156,157,158,159],"A6 Series","A5-EU Series","A5-N Series","SKIII Series","DP Series","D1 Series","FF Series","FF-M Series","P Series","CG-P Series","VM Series","SPET Series","LSR Series",12,{"id":162,"name":163,"slug":162,"series":164,"partCount":171},"chen-hsong","Chen Hsong",[165,166,167,168,169,170],"JETMASTER MK Series","JETMASTER SVP Series","SUPERMASTER Series","EASYMASTER Series","SPARK Series","JETMASTER C2 Series",10,{"id":173,"name":174,"slug":173,"series":175,"partCount":179},"tederic","Tederic",[176,177,178],"NEO Series","D Series (Two-Platen)","DE Series (All-Electric)",0,{"id":181,"name":182,"slug":181,"series":183,"partCount":179},"borch","Borch",[184,185,186,187],"BU Series (Two-Platen)","BS-III Series (Servo)","BE Series (All-Electric)","BM Series (Multi-color)",{"id":189,"name":190,"slug":189,"series":191,"partCount":179},"log-machine","LOG Machine",[192,193],"LOG-SE Series","LOG-EE Series (All-Electric)",{"id":195,"name":196,"slug":195,"series":197,"partCount":179},"donghua","Donghua",[198,199],"DH Series (Servo)","DH-TP Series (Two-Platen)",{"id":201,"name":202,"slug":201,"series":203,"partCount":179},"sunbun","Sunbun",[204],"Sunbun Servo Series",{"id":206,"name":207,"slug":206,"series":208,"partCount":179},"lijin","L.K. Machinery (Lijin)",[209,210,211],"POTENZA Series","FORZA Series (Two-Platen)","ELETTRICA Series (All-Electric)",[213,217,221,225,228,231,235,238,242,248,251],{"id":214,"number":26,"name":215,"role":216,"partCount":21},"clamp-cylinder","Clamping cylinder","The hydraulic cylinder behind the rear platen. It drives the crosshead that straightens the toggle links, which opens and closes the mold and builds the clamping force.",{"id":218,"number":21,"name":219,"role":220,"partCount":50},"toggle","Toggle mechanism","Links, pins and bushings between the rear and moving platens. They multiply the force of the clamping cylinder and lock the mold shut while plastic is injected.",{"id":222,"number":113,"name":223,"role":224,"partCount":113},"ejector","Ejector","A small cylinder behind the moving platen that pushes the ejector rods and plate forward to release the finished part from the mold.",{"id":78,"number":16,"name":226,"role":227,"partCount":40},"Tie bars & bushings","Four steel columns that join the platens, guide the moving platen and carry the clamping force. Tie bar nuts lock them in place; bushings guide the moving platen along them.",{"id":88,"number":70,"name":229,"role":230,"partCount":21},"Platens & mold plates","The fixed and moving platens carry the two halves of the mold; the rear platen anchors the toggle. Locating rings and clamping plates center and hold the mold.",{"id":232,"number":50,"name":233,"role":234,"partCount":50},"barrel-screw","Barrel, screw & nozzle","The screw turns inside the heated barrel to melt and mix the plastic, then moves forward to inject it through the nozzle into the mold. The screw tip and check ring stop melt from flowing back.",{"id":30,"number":79,"name":236,"role":237,"partCount":113},"Heater bands & sensors","Heater bands around the barrel and nozzle melt the plastic. Thermocouples measure each heating zone so the controller can hold the set temperature.",{"id":239,"number":84,"name":240,"role":241,"partCount":79},"injection-unit","Injection unit","Injection cylinders push the screw forward, the hydraulic (plasticizing) motor turns it, and the carriage moves the unit against the mold on its guide rails.",{"id":243,"number":244,"name":245,"role":246,"partCount":247},"hydraulics",9,"Hydraulic unit","The pump, motor, valves, accumulator, filters and oil cooler in the machine base. They supply and control the oil pressure for every movement of the machine.",16,{"id":8,"number":171,"name":249,"role":250,"partCount":244},"Electrical cabinet","The controller, I\u002FO and drive boards, servo drives, contactors and safety switches that run and protect the machine.",{"id":252,"number":10,"name":253,"role":254,"partCount":21},"feet","Machine feet","Leveling bolts and anti-vibration pads under the machine base that keep the machine level and stop vibration spreading to the floor.",{"parts":256,"subcategories":257},70,23,{"id":259,"title":260,"body":261,"description":491,"diagram":492,"extension":493,"faq":494,"item":507,"lastModified":508,"meta":509,"navigation":510,"order":171,"parts":511,"path":513,"seo":514,"seoTitle":515,"short":516,"stem":517,"__hash__":518},"guides\u002Finjection-molding-machine-parts\u002Fhydraulics\u002Fproportional-valve.md","Proportional valve of an injection molding machine",{"type":262,"value":263,"toc":477},"minimark",[264,273,278,285,290,301,305,318,322,329,333,341,349,353,360,364,383,387,423,427,448,455,459],[265,266,267,268,272],"p",{},"A proportional valve on an injection molding machine sets pressure or flow in proportion to an electrical signal from the controller. On many machines with a fixed pump, a combined ",[269,270,271],"strong",{},"proportional pressure and flow valve"," (often called a P\u002FQ valve) is what turns the speeds and pressures set on the screen into oil: injection speed and pressure, holding pressure, clamp and ejector speeds. On the drawing it is the valve on the right of the manifold top, with its coil and plug standing up from the body.",[274,275,277],"h2",{"id":276},"how-a-proportional-valve-works","How a proportional valve works",[265,279,280,281,284],{},"An on\u002Foff solenoid either pushes with full force or not at all. A ",[269,282,283],{},"proportional solenoid"," produces a force that follows the current through its coil, so the valve can be set anywhere between closed and fully open, or between minimum and maximum pressure.",[286,287,289],"h3",{"id":288},"the-amplifier","The amplifier",[265,291,292,293,296,297,300],{},"The controller sends a command signal; an ",[269,294,295],{},"amplifier"," turns it into a regulated coil current. The amplifier is either a card in the electrical cabinet or electronics built onto the valve. It also sets the ramp times, the minimum and maximum current and a small ",[269,298,299],{},"dither"," (a fast oscillation of the current that keeps the spool or poppet from sticking).",[286,302,304],{"id":303},"pressure-section","Pressure section",[265,306,307,308,311,312,317],{},"The pressure part is a pilot-operated relief valve whose pilot poppet is held by the proportional solenoid instead of a spring. The higher the current, the higher the pressure at which the valve opens and sends oil to the tank, so the system pressure follows the command. A separate ",[269,309,310],{},"proportional pilot relief valve"," works the same way: connected to the vent port of a main ",[313,314,316],"a",{"href":315},"\u002Finjection-molding-machine-parts\u002Fhydraulics\u002Frelief-valve\u002F","relief valve",", it sets the pressure at which the main valve opens.",[286,319,321],{"id":320},"flow-section","Flow section",[265,323,324,325,328],{},"The flow part is a throttle whose opening follows the command, combined with a ",[269,326,327],{},"pressure compensator"," that keeps the pressure drop across the throttle constant. The flow then depends on the opening and not on the load. On a fixed pump machine, the oil the actuator does not need goes back to the tank through the valve.",[286,330,332],{"id":331},"other-proportional-valves","Other proportional valves",[265,334,335,336,340],{},"Some machines also use proportional directional valves, which set both the direction and the speed of a movement, and a proportional relief valve for screw back pressure. On variable pump machines the proportional control may sit on the pump, and on ",[313,337,339],{"href":338},"\u002Finjection-molding-machine-parts\u002Fhydraulics\u002Fservo-pump\u002F","servo pump"," machines the servo drive takes over the pressure and flow control.",[265,342,343,344,348],{},"The ",[313,345,347],{"href":346},"\u002Fparts\u002Fhy-cv-04\u002F","proportional pressure\u002Fflow valve"," we supply is listed with the model EDG-01-A-45, the type designation of a proportional pilot relief valve. It is a 24 V DC valve rated to 35 MPa and works with a matching proportional amplifier.",[274,350,352],{"id":351},"calibration","Calibration",[265,354,355,356,359],{},"The relation between the command and the actual pressure or flow is never exactly a straight line, and it differs a little from one valve to the next. The machine controller therefore holds a ",[269,357,358],{},"calibration table"," (often called linearization) for pressure and for flow. After a proportional valve or its amplifier is replaced, run the calibration routine in the machine manual, and compare the actual pressure with a gauge at several setpoints. Check the amplifier's minimum and maximum current settings at the same time.",[274,361,363],{"id":362},"signs-of-a-faulty-proportional-valve","Signs of a faulty proportional valve",[365,366,367,371,374,377,380],"ul",{},[368,369,370],"li",{},"Pressure or speed does not follow the setpoint, or stays the same whatever the setting.",[368,372,373],{},"Pressure that jumps, oscillates or overshoots.",[368,375,376],{},"Slow response at the start of a movement.",[368,378,379],{},"No pressure at all, or pressure stuck high.",[368,381,382],{},"Injection speed or fill time that varies from shot to shot while the settings stay the same.",[274,384,386],{"id":385},"why-proportional-valves-fail","Why proportional valves fail",[365,388,389,405,411,417],{},[368,390,391,394,395,399,400,404],{},[269,392,393],{},"Contamination."," The pilot stage has small orifices and close clearances that dirt and varnish block or wear. Proportional valves are among the most sensitive parts of the circuit to dirty oil; see the ",[313,396,398],{"href":397},"\u002Finjection-molding-machine-parts\u002Fhydraulics\u002Foil-filter\u002F","oil filter"," and our article on ",[313,401,403],{"href":402},"\u002Fblog\u002Fhydraulic-oil-problems-injection-molding\u002F","hydraulic oil problems",".",[368,406,407,410],{},[269,408,409],{},"Electrical faults."," An open or short-circuited coil, a damaged cable or connector, or a faulty amplifier.",[368,412,413,416],{},[269,414,415],{},"Air"," trapped in the solenoid or pilot chamber; some valves have a bleed screw for it.",[368,418,419,422],{},[269,420,421],{},"Wear"," of the spool, poppet and seat after long service.",[274,424,426],{"id":425},"testing-a-proportional-valve","Testing a proportional valve",[428,429,430,433,436,439,442,445],"ol",{},[368,431,432],{},"Fit a calibrated gauge and compare the actual pressure with the setpoint at several values.",[368,434,435],{},"With the power off, measure the coil resistance and compare it with the valve data.",[368,437,438],{},"With the machine running, measure the coil current, or use the amplifier's test points, and check that it changes with the command.",[368,440,441],{},"Check the amplifier's supply voltage and its input signal from the controller.",[368,443,444],{},"Bleed the valve if it has a bleed screw.",[368,446,447],{},"If the electrical side is correct but the hydraulic response is wrong, clean or replace the valve, then flush the oil and change the filters to remove the dirt that caused it.",[265,449,343,450,454],{},[313,451,453],{"href":452},"\u002Fblog\u002Ftroubleshooting-hydraulic-pressure-loss\u002F","troubleshooting hydraulic pressure loss"," guide shows where the proportional valve fits in the order of tests.",[274,456,458],{"id":457},"what-to-send-for-a-replacement-quote","What to send for a replacement quote",[265,460,461,462,466,467,471,472,476],{},"The model code from the valve nameplate, the amplifier model (card or on-board), the coil voltage and resistance, the connector type, and photos of the valve, its nameplate and the ",[313,463,465],{"href":464},"\u002Finjection-molding-machine-parts\u002Fhydraulics\u002Fvalve-manifold\u002F","valve manifold"," face it mounts on. Add the machine model and serial number, then ",[313,468,470],{"href":469},"\u002Frequest-quote\u002F","request a quote",". The ",[313,473,475],{"href":474},"\u002Finjection-molding-machine-parts\u002Fhydraulics\u002F","hydraulic system guide"," shows how it works with the pump and the other valves.",{"title":478,"searchDepth":21,"depth":21,"links":479},"",[480,486,487,488,489,490],{"id":276,"depth":21,"text":277,"children":481},[482,483,484,485],{"id":288,"depth":113,"text":289},{"id":303,"depth":113,"text":304},{"id":320,"depth":113,"text":321},{"id":331,"depth":113,"text":332},{"id":351,"depth":21,"text":352},{"id":362,"depth":21,"text":363},{"id":385,"depth":21,"text":386},{"id":425,"depth":21,"text":426},{"id":457,"depth":21,"text":458},"How the proportional pressure and flow valve sets speeds and pressures on an injection molding machine, its amplifier, common faults, testing and calibration.","valve-manifold","md",[495,498,501,504],{"question":496,"answer":497},"What does a proportional valve do on an injection molding machine?","It sets pressure or flow in proportion to an electrical signal from the controller, so the injection speed, holding pressure and clamp movements follow the values set on the screen. Many fixed pump machines have a combined proportional pressure and flow valve.",{"question":499,"answer":500},"What is a proportional valve amplifier?","An electronic card or a module built onto the valve that turns the controller's command signal into a regulated current for the valve coil. It also sets ramps, the minimum and maximum current and the dither, so valve and amplifier must be set up together.",{"question":502,"answer":503},"Do I need to calibrate a new proportional valve?","Yes. Run the pressure and flow calibration in the machine controller after replacing the valve or its amplifier, and check the actual pressure with a gauge, because each valve responds slightly differently.",{"question":505,"answer":506},"Why do proportional valves fail?","Mostly through contamination: the pilot stage has small orifices and close clearances that dirt and varnish block or wear. Coil, cable, connector and amplifier faults are the other common causes.","proportional","2026-11-01",{},true,[512],"HY-CV-04","\u002Finjection-molding-machine-parts\u002Fhydraulics\u002Fproportional-valve",{"title":260,"description":491},"Proportional Valve in Injection Molding: Pressure and Flow","Proportional valve","injection-molding-machine-parts\u002Fhydraulics\u002Fproportional-valve","Zm3_cp6tjsekvMvx4Zi1l3jKvAfnwccMT-rptcer7tA",[520,524,528,532,536,540,544,548,552,556,560,564,568,572,576,580,584,588,592,596,600,604],{"path":521,"title":522,"short":523},"\u002Finjection-molding-machine-parts\u002Fhydraulics\u002Fhydraulic-circuit","Hydraulic circuit of an injection molding machine","Hydraulic circuit",{"path":525,"title":526,"short":527},"\u002Finjection-molding-machine-parts\u002Fhydraulics\u002Fhydraulic-pump","Hydraulic pump of an injection molding machine","Hydraulic pump types",{"path":529,"title":530,"short":531},"\u002Finjection-molding-machine-parts\u002Fhydraulics\u002Fvane-pump","Vane pump of an injection molding machine","Vane pump",{"path":533,"title":534,"short":535},"\u002Finjection-molding-machine-parts\u002Fhydraulics\u002Fpiston-pump","Piston pump of an injection molding machine","Piston pump",{"path":537,"title":538,"short":539},"\u002Finjection-molding-machine-parts\u002Fhydraulics\u002Fgear-pump","Gear pump of an injection molding machine","Gear pump",{"path":541,"title":542,"short":543},"\u002Finjection-molding-machine-parts\u002Fhydraulics\u002Fservo-pump","Servo pump system of an injection molding machine","Servo pump system",{"path":545,"title":546,"short":547},"\u002Finjection-molding-machine-parts\u002Fhydraulics\u002Fpump-coupling","Pump coupling and bell housing of an injection molding machine","Pump coupling",{"path":549,"title":550,"short":551},"\u002Finjection-molding-machine-parts\u002Fhydraulics\u002Fpower-unit","Hydraulic power unit of an injection molding machine","Hydraulic power unit",{"path":553,"title":554,"short":555},"\u002Finjection-molding-machine-parts\u002Fhydraulics\u002Fdirectional-valve","Solenoid directional valve of an injection molding machine","Directional valve",{"path":557,"title":558,"short":559},"\u002Finjection-molding-machine-parts\u002Fhydraulics\u002Fcartridge-valve","Cartridge valve of an injection molding machine","Cartridge valve",{"path":561,"title":562,"short":563},"\u002Finjection-molding-machine-parts\u002Fhydraulics\u002Fhydraulic-check-valve","Hydraulic check valve of an injection molding machine","Hydraulic check valve",{"path":565,"title":566,"short":567},"\u002Finjection-molding-machine-parts\u002Fhydraulics\u002Frelief-valve","Relief valve of an injection molding machine","Relief valve",{"path":569,"title":570,"short":571},"\u002Finjection-molding-machine-parts\u002Fhydraulics\u002Fvalve-manifold","Valve manifold of an injection molding machine","Valve manifold",{"path":573,"title":574,"short":575},"\u002Finjection-molding-machine-parts\u002Fhydraulics\u002Faccumulator","Accumulator of an injection molding machine","Accumulator",{"path":577,"title":578,"short":579},"\u002Finjection-molding-machine-parts\u002Fhydraulics\u002Fhydraulic-oil","Hydraulic oil for injection molding machines","Hydraulic oil",{"path":581,"title":582,"short":583},"\u002Finjection-molding-machine-parts\u002Fhydraulics\u002Foil-temperature","Oil temperature of an injection molding machine","Oil temperature",{"path":585,"title":586,"short":587},"\u002Finjection-molding-machine-parts\u002Fhydraulics\u002Foil-filter","Hydraulic oil filter of an injection molding machine","Oil filter",{"path":589,"title":590,"short":591},"\u002Finjection-molding-machine-parts\u002Fhydraulics\u002Foil-cooler","Oil cooler (heat exchanger) of an injection molding machine","Oil cooler",{"path":593,"title":594,"short":595},"\u002Finjection-molding-machine-parts\u002Fhydraulics\u002Foil-tank","Hydraulic oil tank of an injection molding machine","Oil tank",{"path":597,"title":598,"short":599},"\u002Finjection-molding-machine-parts\u002Fhydraulics\u002Fcooling-water-manifold","Cooling water manifold of an injection molding machine","Cooling water manifold",{"path":601,"title":602,"short":603},"\u002Finjection-molding-machine-parts\u002Fhydraulics\u002Fpressure-gauge","Hydraulic pressure gauge of an injection molding machine","Pressure gauge",{"path":605,"title":606,"short":607},"\u002Finjection-molding-machine-parts\u002Fhydraulics\u002Fpressure-transducer","Pressure transducer of an injection molding machine","Pressure transducer",{"diagram":609},"hydraulic-system",{"diagram":611},{"title":612,"description":613,"base":614,"labels":619,"items":628},"Parts of a hydraulic valve manifold","Line drawing of a hydraulic manifold block with a directional valve, a high-flow solenoid valve, a proportional valve, a relief valve, a cartridge valve and a check valve, numbered.",{"line":615},[616,617,618],"M60 296L226 296","M270 296L320 296L320 260","M440 260L440 300L600 300",[620,624],{"x":621,"y":622,"text":623},66,288,"P",{"x":625,"y":626,"text":627},596,292,"T",[629,647,668,687,704,722,742],{"id":630,"name":631,"role":632,"marker":633,"shapes":637},"block","Manifold block","Steel block drilled with oil passages. The valves bolt onto it or screw into it, which replaces most of the piping between them.",[634,635,634,636],380,336,260,{"solid":638,"line":640},[639],"M153 170h334a3 3 0 0 1 3 3v84a3 3 0 0 1 -3 3h-334a3 3 0 0 1 -3 -3v-84a3 3 0 0 1 3 -3z",[641,642,643,644,645,646],"M264 238a6 6 0 1 0 12 0a6 6 0 1 0 -12 0z","M334 238a6 6 0 1 0 12 0a6 6 0 1 0 -12 0z","M414 238a6 6 0 1 0 12 0a6 6 0 1 0 -12 0z","M268 238a2 2 0 1 0 4 0a2 2 0 1 0 -4 0z","M338 238a2 2 0 1 0 4 0a2 2 0 1 0 -4 0z","M418 238a2 2 0 1 0 4 0a2 2 0 1 0 -4 0z",{"id":648,"name":555,"role":649,"parts":650,"marker":652,"shapes":656},"directional","Solenoid valve that switches oil between the two ports of a cylinder or motor, to start, stop and reverse a movement.",[651],"HY-CV-02",[653,654,653,655],216,24,128,{"solid":657,"line":663,"hidden":666},[658,659,660,661,662],"M160 132h22a2 2 0 0 1 2 2v26a2 2 0 0 1 -2 2h-22a2 2 0 0 1 -2 -2v-26a2 2 0 0 1 2 -2z","M186 128h60a2 2 0 0 1 2 2v38a2 2 0 0 1 -2 2h-60a2 2 0 0 1 -2 -2v-38a2 2 0 0 1 2 -2z","M250 132h22a2 2 0 0 1 2 2v26a2 2 0 0 1 -2 2h-22a2 2 0 0 1 -2 -2v-26a2 2 0 0 1 2 -2z","M164 120h14a1 1 0 0 1 1 1v10a1 1 0 0 1 -1 1h-14a1 1 0 0 1 -1 -1v-10a1 1 0 0 1 1 -1z","M254 120h14a1 1 0 0 1 1 1v10a1 1 0 0 1 -1 1h-14a1 1 0 0 1 -1 -1v-10a1 1 0 0 1 1 -1z",[664,665],"M152 147L158 147","M274 147L280 147",[667],"M192 142h48a2 2 0 0 1 2 2v10a2 2 0 0 1 -2 2h-48a2 2 0 0 1 -2 -2v-10a2 2 0 0 1 2 -2z",{"id":669,"name":670,"role":671,"parts":672,"marker":674,"shapes":677},"high-flow","High-flow solenoid valve","Larger, pilot-operated directional valve: a small solenoid valve on top shifts the main spool. Used for clamping and injection on large machines.",[673],"HY-CV-15",[675,654,675,676],339,96,{"solid":678,"hidden":685},[679,680,681,682,683,684],"M292 120h86a2 2 0 0 1 2 2v46a2 2 0 0 1 -2 2h-86a2 2 0 0 1 -2 -2v-46a2 2 0 0 1 2 -2z","M298 100h16a2 2 0 0 1 2 2v16a2 2 0 0 1 -2 2h-16a2 2 0 0 1 -2 -2v-16a2 2 0 0 1 2 -2z","M318 96h44a2 2 0 0 1 2 2v20a2 2 0 0 1 -2 2h-44a2 2 0 0 1 -2 -2v-20a2 2 0 0 1 2 -2z","M366 100h16a2 2 0 0 1 2 2v16a2 2 0 0 1 -2 2h-16a2 2 0 0 1 -2 -2v-16a2 2 0 0 1 2 -2z","M300 90h12a1 1 0 0 1 1 1v8a1 1 0 0 1 -1 1h-12a1 1 0 0 1 -1 -1v-8a1 1 0 0 1 1 -1z","M368 90h12a1 1 0 0 1 1 1v8a1 1 0 0 1 -1 1h-12a1 1 0 0 1 -1 -1v-8a1 1 0 0 1 1 -1z",[686],"M301 138h68a3 3 0 0 1 3 3v10a3 3 0 0 1 -3 3h-68a3 3 0 0 1 -3 -3v-10a3 3 0 0 1 3 -3z",{"id":507,"name":516,"role":688,"parts":689,"marker":690,"shapes":694},"Sets pressure or flow in proportion to an electrical signal from the controller, so speeds and pressures follow the profile set on the screen.",[512],[691,654,692,693],468,466,102,{"solid":695,"line":700,"hidden":702},[696,697,698,699],"M400 132h46a2 2 0 0 1 2 2v34a2 2 0 0 1 -2 2h-46a2 2 0 0 1 -2 -2v-34a2 2 0 0 1 2 -2z","M452 138h28a4 4 0 0 1 4 4v18a4 4 0 0 1 -4 4h-28a4 4 0 0 1 -4 -4v-18a4 4 0 0 1 4 -4z","M452 114h28a2 2 0 0 1 2 2v20a2 2 0 0 1 -2 2h-28a2 2 0 0 1 -2 -2v-20a2 2 0 0 1 2 -2z","M462 102h8a2 2 0 0 1 2 2v8a2 2 0 0 1 -2 2h-8a2 2 0 0 1 -2 -2v-8a2 2 0 0 1 2 -2z",[701],"M474 139L474 163",[703],"M406 145h36a2 2 0 0 1 2 2v8a2 2 0 0 1 -2 2h-36a2 2 0 0 1 -2 -2v-8a2 2 0 0 1 2 -2z",{"id":705,"name":567,"role":706,"parts":707,"marker":709,"shapes":713},"relief","Limits the system pressure. When the pressure goes above its setting it opens and sends oil to the tank.",[708],"HY-CV-06",[710,711,712,711],616,214,580,{"solid":714,"line":719},[715,716,717,718],"M492 194h24a2 2 0 0 1 2 2v36a2 2 0 0 1 -2 2h-24a2 2 0 0 1 -2 -2v-36a2 2 0 0 1 2 -2z","M521 200h28a3 3 0 0 1 3 3v22a3 3 0 0 1 -3 3h-28a3 3 0 0 1 -3 -3v-22a3 3 0 0 1 3 -3z","M563 208h6a1 1 0 0 1 1 1v10a1 1 0 0 1 -1 1h-6a1 1 0 0 1 -1 -1v-10a1 1 0 0 1 1 -1z","M572 204h6a2 2 0 0 1 2 2v16a2 2 0 0 1 -2 2h-6a2 2 0 0 1 -2 -2v-16a2 2 0 0 1 2 -2z",[720,721],"M552 214L562 214","M523 214L527 207L532 221L537 207L542 221L547 214",{"id":723,"name":559,"role":724,"parts":725,"marker":727,"shapes":730},"cartridge","Valve inserted into a bore in the block, shown here in section. A spring-loaded poppet opens or closes a large passage; used for high flows in clamping, injection and ejection circuits.",[726],"HY-CV-08",[654,728,729,728],220,136,{"solid":731,"line":735,"hidden":739},[732,733,734],"M138 190h10a2 2 0 0 1 2 2v56a2 2 0 0 1 -2 2h-10a2 2 0 0 1 -2 -2v-56a2 2 0 0 1 2 -2z","M152 204h66a2 2 0 0 1 2 2v28a2 2 0 0 1 -2 2h-66a2 2 0 0 1 -2 -2v-28a2 2 0 0 1 2 -2z","M191 210h24a3 3 0 0 1 3 3v14a3 3 0 0 1 -3 3h-24a3 3 0 0 1 -3 -3v-14a3 3 0 0 1 3 -3z",[736,737,738],"M141 198a2 2 0 1 0 4 0a2 2 0 1 0 -4 0z","M141 242a2 2 0 1 0 4 0a2 2 0 1 0 -4 0z","M152 220L157 212L163 228L169 212L175 228L181 212L187 220",[740,741],"M220 220L250 220","M204 236L204 258",{"id":743,"name":744,"role":745,"parts":746,"marker":748,"shapes":751},"check","Check valve","Lets oil flow one way only, for example from the pump into the circuit, and blocks it from flowing back.",[747],"HY-CV-05",[749,635,749,750],248,308,{"solid":752,"line":754,"hidden":757},[753],"M230 284h36a4 4 0 0 1 4 4v16a4 4 0 0 1 -4 4h-36a4 4 0 0 1 -4 -4v-16a4 4 0 0 1 4 -4z",[755,756],"M236 284L236 308","M260 284L260 308",[758,759],"M244 296a6 6 0 1 0 12 0a6 6 0 1 0 -12 0z","M242 289L242 303",[761],{"partNumber":512,"name":762,"subcategory":47,"subcategoryName":48,"shortDescription":763,"image":764,"inStock":510,"zone":243,"compatibleMachines":765},"Proportional Pressure\u002FFlow Valve","Proportional solenoid valve for precise pressure and flow control in injection molding machines.","\u002Fpart-images\u002FHY\u002FHY-CV-04\u002F06e2c777-c0f3-4739-8046-c59de63bbd4e.png",[766,767,768],"Haitian MA Series","Haitian MA II Series","Yizumi A5 Series",1793548983293]