Core Application & Target User Overview
This guide covers hydraulic components specifically compatible with construction machinery (e.g., excavators, loaders), industrial hydraulic presses, CNC machine tools, and automated production lines equipped with A10VS0/A10VSO/A2FM series pumps and 4WREE/4WRAE/DG4V series valves. Targeting hydraulic system maintenance engineers, equipment repair workshops, and manufacturing plant procurement teams, it addresses core needs including precise component matching, troubleshooting of system malfunctions, and ensuring long-term stable equipment operation. All components comply with international standards such as ISO 4401 (hydraulic valve specifications), ISO 13709 (axial piston pump requirements), and DIN 24342 (hydraulic component mounting standards), providing a comprehensive reference for both procurement decision-making and technical problem-solving.
Axial Piston Pumps
Axial piston pumps serve as the power core of high-pressure hydraulic systems, converting mechanical energy into hydraulic energy. Premature wear, internal leakage, or flow instability can lead to insufficient system pressure, reduced equipment efficiency, and costly production downtime. Our pumps feature high-strength alloy materials and precision machining, ensuring stable output, high pressure resistance, and long service life, ideal for high-load scenarios like construction machinery and industrial forging equipment.
Field Fault Maintenance Case
A construction site reported that an excavator equipped with the A10VSO140DRS/32R-VPB22U99 pump experienced sudden power loss during operation. Inspection revealed swash plate ablation caused by metal particle contamination in hydraulic oil that did not meet ISO 4406 Class 13/10 cleanliness standards. After replacing the pump with our compliant product and upgrading the oil filtration system, the excavator restored stable operation, achieving 5,000+ hours of trouble-free work.
Serial No. | Product Model (Including Part No.) | Material | Main Wear Reasons | Damage Prevention Notes |
1 | A10VS0100DRS32RVPB12N00-S1439 | Pump body: 35CrMo alloy steel (nitriding treatment); Piston: 20CrMnTi alloy steel (carburizing and quenching, HRC 60-64); Swash plate: 42CrMo alloy steel with tungsten carbide coating; Valve plate: Copper-lead alloy with graphite self-lubricating layer; Seal: Fluororubber (FKM); Bearing: GCr15 high-carbon chromium steel | 1. Piston-cylinder pair wear due to contamination of hydraulic oil with solid particles (≥0.02mm); 2. Swash plate fatigue cracking caused by long-term operation at 90%+ rated pressure | 1. Replace hydraulic oil filter every 300 operating hours and ensure oil cleanliness meets ISO 4406 Class 13/10; 2. Install a pressure monitoring device to avoid continuous operation above 85% of rated pressure and calibrate the pump every 1,500 hours per ISO 13709 Clause 6.3 |
2 | A4VS0250DR30RPPB13N00 | Pump body: 35CrMo alloy steel (nitriding treatment); Piston: 20CrMnTi alloy steel (carburizing and quenching); Swash plate: 42CrMo alloy steel; Shaft: 40CrNiMo alloy steel; Seal: FKM; Bearing: GCr15 | 1. Valve plate wear due to misalignment between pump and motor shafts (radial runout >0.05mm); 2. Seal leakage accelerated by hydraulic oil temperature exceeding 85°C | 1. Perform laser alignment of pump and motor shafts quarterly in accordance with ISO 13709 Clause 5.2; 2. Equip the system with an oil cooler to maintain oil temperature ≤80°C and check oil level weekly |
3 | A10VS028DFR1/31RPPA12N00 | Pump body: 35CrMo alloy steel (nitriding treatment); Piston: 20CrMnTi alloy steel (carburizing and quenching); Swash plate: 42CrMo alloy steel; Valve plate: Copper-lead alloy; Seal: FKM; Bearing: GCr15 | 1. Valve plate wear caused by frequent pressure cycling; 2. Seal leakage due to incompatible hydraulic oil additives | 1. Inspect valve plate every 800 operating hours and replace if wear exceeds 0.05mm; 2. Use hydraulic oil compatible with FKM seals in accordance with ASTM D471 |
4 | A10VSO140DRS/32R-VPB22U99 | Pump body: 35CrMo alloy steel (nitriding treatment); Piston: 20CrMnTi alloy steel (carburizing and quenching); Swash plate: 42CrMo alloy steel with tungsten carbide coating; Shaft: 40CrNiMo alloy steel; Seal: FKM; Bearing: GCr15 | 1. Swash plate ablation due to metal particle contamination in hydraulic oil; 2. Shaft deformation caused by uneven mounting torque during installation | 1. Use hydraulic oil that meets ISO 4406 Class 13/10 cleanliness requirements; 2. Tighten mounting bolts uniformly with a torque wrench according to manufacturer's specifications and recheck torque monthly |
5 | PVH098R01AJ30B252000002001AB010A 02-306079 | Pump body: 35CrMo alloy steel; Piston: 20CrMnTi alloy steel (carburizing and quenching); Valve plate: Cast iron with hardened surface; Seal: FKM; Bearing: GCr15; Shaft: 40Cr alloy steel | 1. Piston wear caused by oxidation sludge accumulation in hydraulic oil; 2. Bearing damage due to insufficient lubrication from oil level shortage | 1. Replace hydraulic oil annually and add anti-oxidation additives; 2. Check oil level weekly and clean oil supply pipelines monthly to prevent blockages |
6 | PGP620A0410BM3A4VE7E7B1B1G4(7029110006) | Pump body: 35CrMo alloy steel; Gear: 20CrMnTi alloy steel (carburizing and quenching); End plate: 42CrMo alloy steel; Seal: FKM; Bearing: GCr15 | 1. Gear tooth wear caused by solid particle contamination in hydraulic oil; 2. End plate leakage due to bolt loosening under long-term vibration | 1. Replace the oil filter every 300 operating hours; 2. Retighten the end plate bolts every 500 operating hours and apply anti-loosening thread lock compound |
Hydraulic Motors
Hydraulic motors convert hydraulic energy into mechanical energy to drive equipment movement. Malfunctions such as motor stall, internal leakage, or torque reduction can cause equipment downtime and reduced productivity. Our hydraulic motors adopt high-strength materials and precision machining, ensuring high torque output, stable operation, and reliable sealing, suitable for heavy-duty applications such as excavator travel mechanisms, conveyor systems, and industrial rotary equipment.
Serial No. | Product Model (Including Part No.) | Material | Main Wear Reasons | Damage Prevention Notes |
1 | A2FM125/61W-VAB100 R902137570 | Motor housing: 35CrMo alloy steel; Rotor: 20CrMnTi alloy steel (carburizing and quenching); Stator: 42CrMo alloy steel; Seal: FKM; Bearing: GCr15; Shaft: 40CrNiMo alloy steel | 1. Bearing damage due to insufficient lubrication from oil level shortage; 2. Rotor stall from foreign object intrusion | 1. Check oil level weekly and clean oil supply pipelines monthly to prevent blockages; 2. Install a 10μm precision filter at the motor inlet |
Directional Control Valves
Directional control valves regulate the flow direction of hydraulic oil to realize the commutation, start, and stop of actuators. Slow response, internal leakage, or valve core jamming can cause uncoordinated equipment movements, reduced operational precision, and even safety hazards. Our valves adopt precision-ground spools and multi-layer sealing structures, ensuring fast response (≤0.1s), low internal leakage (≤3ml/min), and strong anti-vibration performance, suitable for high-vibration industrial environments such as construction machinery and hydraulic presses.
Serial No. | Product Model (Including Part No.) | Material | Main Wear Reasons | Damage Prevention Notes |
1 | 4WREE6E32-2X/G24K31/F1V(R900925733) | Valve body: 35CrMo alloy steel; Valve core: 42CrMo alloy steel (nitriding treatment, surface hardness HV ≥850); Spring: 60Si2Mn alloy steel; Seal: FKM; Solenoid coil: Copper wire with epoxy resin encapsulation (Class F heat resistance) | 1. Valve core jamming caused by hydraulic oil contamination and sludge accumulation; 2. Solenoid coil burnout due to voltage fluctuation (deviation >±10%) | 1. Replace the hydraulic oil filter every 300 operating hours and flush the system every 1,200 operating hours; 2. Install a voltage stabilizer in the control circuit and monitor voltage weekly in accordance with DIN 40050-1 |
2 | R900965674 4WRAE10E60-2X/G24K31/F1V | Valve body: 35CrMo alloy steel; Valve core: 42CrMo alloy steel (nitriding treatment); Spring: 55CrSi alloy steel; Seal: FKM; Solenoid coil: Copper wire with epoxy resin encapsulation; Pressure compensation mechanism: 40Cr alloy steel | 1. Pressure compensation mechanism jamming due to hydraulic oil sludge; 2. Solenoid coil failure due to moisture intrusion | 1. Flush the hydraulic system every 1,000 operating hours; 2. Seal electrical interfaces with silicone sealant and install the valve in a moisture-proof control cabinet |
3 | DG4V32AMUH760 | Valve body: 35CrMo alloy steel; Valve core: 42CrMo alloy steel (nitriding treatment); Spring: 60Si2Mn alloy steel; Seal: FKM; Solenoid coil: Copper wire with epoxy resin encapsulation | 1. Valve core wear caused by frequent commutation; 2. Seal leakage caused by high-temperature operation (ambient temperature >60°C) | 1. Apply molybdenum disulfide lubricating grease to the valve core mechanism every 200 operating hours; 2. Install a heat shield if the valve is near high-temperature components |
4 | DG4V36CMUH560EN124 | Valve body: 35CrMo alloy steel; Valve core: 42CrMo alloy steel (nitriding treatment); Spring: 55CrSi alloy steel; Seal: FKM; Solenoid coil: Copper wire with heat-resistant encapsulation | 1. Valve core jamming due to rust particles in the hydraulic oil; 2. Solenoid coil burnout due to voltage spikes | 1. Add an anti-rust additive to the hydraulic oil; 2. Install a surge protector in the control circuit to absorb voltage spikes |
5 | DG4V32ALMUH760 859211 | Valve body: 35CrMo alloy steel; Valve core: 42CrMo alloy steel (nitriding treatment); Spring: 60Si2Mn alloy steel; Seal: FKM; Solenoid coil: Copper wire with epoxy resin encapsulation (oil-proof design) | 1. Solenoid coil damage caused by oil immersion; 2. Valve core jamming due to sludge accumulation | 1. Inspect the oil-proof seal monthly and replace if damaged; 2. Flush the hydraulic system every 1,000 operating hours |
6 | CG5V6FWDMUH711 859542 | Valve body: 35CrMo alloy steel; Valve core: 42CrMo alloy steel (nitriding treatment); Spring: 55CrSi alloy steel; Seal: FKM; Solenoid coil: Copper wire with epoxy resin encapsulation | 1. Seal leakage caused by uneven installation force; 2. Valve core wear due to long-term use | 1. Use a torque wrench to uniformly tighten the mounting bolts in accordance with DIN 24342 Clause 6.3; 2. Calibrate the valve every 800 operating hours |
7 | DG4V30CMUH760 | Valve body: 35CrMo alloy steel; Valve core: 42CrMo alloy steel (nitriding treatment); Spring: 60Si2Mn alloy steel; Seal: FKM; Solenoid coil: Copper wire with epoxy resin encapsulation | 1. Valve core jamming caused by foreign object intrusion during maintenance; 2. Solenoid coil overheating due to long-term energization | 1. Clean the valve and surrounding area before maintenance to avoid debris entering; 2. Avoid long-term continuous energization and use a time relay if necessary |
8 | D1VW020DNJW | Valve body: 35CrMo alloy steel; Valve core: 42CrMo alloy steel (nitriding treatment); Spring: 60Si2Mn alloy steel; Seal: FKM; Solenoid coil: Copper wire with epoxy resin encapsulation | 1. Seal leakage caused by pressure cycling; 2. Valve core wear due to long-term use | 1. Inspect the seals quarterly and replace if necessary; 2. Calibrate the valve every 800 operating hours and replace the valve core if wear exceeds 0.03mm |
9 | D1VW020BNJW | Valve body: 35CrMo alloy steel; Valve core: 42CrMo alloy steel (nitriding treatment); Spring: 60Si2Mn alloy steel; Seal: FKM; Solenoid coil: Copper wire with epoxy resin encapsulation | 1. Valve core jamming caused by hydraulic oil contamination; 2. Solenoid coil damage due to moisture intrusion | 1. Replace the hydraulic oil filter every 300 operating hours; 2. Install the valve in a moisture-proof control cabinet and seal the cable entries |
10 | D3W020BNJW | Valve body: 35CrMo alloy steel; Valve core: 42CrMo alloy steel (nitriding treatment); Spring: 60Si2Mn alloy steel; Seal: FKM; Solenoid coil: Copper wire with epoxy resin encapsulation | 1. Valve body deformation caused by uneven installation force; 2. Solenoid coil damage due to high ambient temperature | 1. Use a torque wrench to uniformly tighten the mounting bolts; 2. Install the valve in a well-ventilated area to ensure ambient temperature ≤55°C |
11 | D3W020HNJW | Valve body: 35CrMo alloy steel; Valve core: 42CrMo alloy steel (nitriding treatment); Spring: 60Si2Mn alloy steel; Seal: FKM; Solenoid coil: Copper wire with epoxy resin encapsulation | 1. Solenoid coil failure caused by dust accumulation; 2. Valve core jamming due to hydraulic oil contamination | 1. Install a protective cover on the solenoid coil to prevent dust accumulation; 2. Replace the hydraulic oil filter every 300 operating hours |
12 | D1VW020HNJW | Valve body: 35CrMo alloy steel; Valve core: 42CrMo alloy steel (nitriding treatment); Spring: 60Si2Mn alloy steel; Seal: FKM; Solenoid coil: Copper wire with epoxy resin encapsulation | 1. Solenoid coil burnout due to overload current; 2. Valve core jamming due to sludge accumulation | 1. Install a current fuse matching the rated current of the solenoid coil; 2. Flush the hydraulic system every 1,200 operating hours |
13 | D1SE30BNJW | Valve body: 35CrMo alloy steel; Valve core: 42CrMo alloy steel (nitriding treatment); Spring: 60Si2Mn alloy steel; Seal: FKM; Solenoid coil: Copper wire with epoxy resin encapsulation | 1. Seal leakage caused by high-pressure oil cycling; 2. Valve core wear due to frequent commutation | 1. Inspect the seals quarterly and replace them if signs of aging (cracking, hardening) appear; 2. Apply molybdenum disulfide lubricating grease to the valve core every 200 operating hours |
16 | D1VW001FNJW | Valve body: 35CrMo alloy steel; Valve core: 42CrMo alloy steel (nitriding treatment); Spring: 55CrSi alloy steel; Seal: NBR; Solenoid coil: Copper wire with epoxy resin encapsulation | 1. Valve core jamming caused by sludge accumulation; 2. Seal leakage caused by incompatible hydraulic oil | 1. Flush the hydraulic system every 1,200 operating hours; 2. Use hydraulic oil compatible with NBR seals in accordance with ASTM D471 |
Pressure Control Valves
Pressure control valves are core safety components that stabilize system pressure, prevent overpressure damage to components, and adjust pressure for different working conditions. Malfunctions such as pressure instability, valve jamming, or leakage can lead to component fatigue failure and even catastrophic system breakdowns. Our pressure control valves adopt precision pressure-adjusting mechanisms, ensuring accurate pressure control (error ≤±2%) and complying with ISO 4401 Clause 7.2 requirements, providing reliable overpressure protection for hydraulic systems in construction, mining, and industrial applications.
Serial No. | Product Model (Including Part No.) | Material | Main Wear Reasons | Damage Prevention Notes |
1 | DBDS20P1X/200 | Valve body: 35CrMo alloy steel; Valve core: 42CrMo alloy steel (nitriding treatment); Spring: 60Si2Mn alloy steel; Seal: FKM; Adjusting screw: 40Cr alloy steel with lock nut | 1. Valve core wear caused by high-pressure oil flow erosion; 2. Adjusting screw loosening due to long-term vibration | 1. Install the valve in a low-flow turbulence area and ensure correct flow direction; 2. Lock the adjusting screw with a lock nut after pressure setting and recheck the torque monthly |
2 | RS10R25S4SN1JW | Valve body: 35CrMo alloy steel; Valve core: 42CrMo alloy steel (nitriding treatment); Spring: 60Si2Mn alloy steel; Seal: FKM; Adjusting screw: 40Cr alloy steel | 1. Valve core jamming caused by hydraulic oil contamination; 2. Seal leakage caused by high-temperature oil (oil temperature >85°C) | 1. Replace the hydraulic oil filter every 300 operating hours; 2. Install an oil cooler to control oil temperature ≤80°C |
3 | RS10M25S4SN1JW | Valve body: 35CrMo alloy steel; Valve core: 42CrMo alloy steel (nitriding treatment); Spring: 55CrSi alloy steel; Seal: FKM; Adjusting screw: 40Cr alloy steel | 1. Spring fatigue due to long-term compression; 2. Valve core wear caused by frequent pressure adjustment | 1. Inspect spring elasticity every 600 operating hours and replace if deformation is found; 2. Minimize frequent pressure adjustments and calibrate the valve every 800 hours |
Flow Control Valves & Proportional Valves
Flow control valves and proportional valves regulate the flow rate of hydraulic oil to ensure stable and accurate movement of actuators, while proportional valves enable stepless flow adjustment for high-precision applications. Malfunctions can lead to inconsistent actuator speed, reduced operational precision, and energy waste. Our valves adopt precision flow-regulating orifices and advanced servo control technology, ensuring accurate flow control (error ≤±3%) and suitable for high-precision industrial applications such as CNC machine tools and automated production lines.
Serial No. | Product Model (Including Part No.) | Material | Main Wear Reasons | Damage Prevention Notes |
1 | D31FBE01CC1NF00 | Valve body: 35CrMo alloy steel; Valve core: 42CrMo alloy steel (nitriding treatment); Spring: 55CrSi alloy steel; Seal: FKM; Solenoid coil: Copper wire with epoxy resin encapsulation | 1. Valve core wear caused by high-velocity oil flow; 2. Seal leakage caused by chemical degradation from incompatible oil additives | 1. Install the valve in a low-flow velocity area and ensure correct flow direction; 2. Use hydraulic oil compatible with FKM seals in accordance with ASTM D471 |
2 | D31FHE02C1NB00 | Valve body: 35CrMo alloy steel; Valve core: 42CrMo alloy steel (nitriding treatment); Spring: 55CrSi alloy steel; Seal: FKM; Solenoid coil: Copper wire with epoxy resin encapsulation | 1. Solenoid coil failure due to moisture intrusion; 2. Valve core jamming due to sludge accumulation | 1. Seal the valve's electrical interface with silicone sealant; 2. Flush the hydraulic system every 1,000 operating hours and replace the filter element |
3 | D41FBE01FC4NF00 | Valve body: 35CrMo alloy steel; Valve core: 42CrMo alloy steel (nitriding treatment); Spring: 60Si2Mn alloy steel; Seal: FKM; Solenoid coil: Copper wire with epoxy resin encapsulation | 1. Valve core jamming caused by foreign object intrusion; 2. Solenoid coil overheating due to voltage fluctuation | 1. Install a 5μm precision filter at the valve inlet; 2. Install a voltage stabilizer in the control circuit |
4 | D3FBE01MC0NG00 | Valve body: 35CrMo alloy steel; Valve core: 42CrMo alloy steel (nitriding treatment); Spring: 55CrSi alloy steel; Seal: FKM; Solenoid coil: Copper wire with epoxy resin encapsulation | 1. Seal leakage caused by pressure impact; 2. Valve core wear caused by frequent flow adjustments | 1. Install a pressure buffer upstream to absorb pressure shocks; 2. Minimize frequent flow adjustments and calibrate the valve every 800 operating hours |
5 | D1FVE50BCVLB35 | Valve body: 35CrMo alloy steel; Valve core: 42CrMo alloy steel (nitriding treatment); Spring: 60Si2Mn alloy steel; Seal: FKM; Solenoid coil: Copper wire with epoxy resin encapsulation (feedback control) | 1. Internal leakage caused by valve seat wear; 2. Solenoid coil failure due to electromagnetic interference | 1. Replace the valve seat every 1,200 operating hours; 2. Route the feedback signal lines separately from power cables to avoid interference |
Servo Valves & Precision Control Components
Servo valves and precision control components are core components of high-precision hydraulic systems, enabling precise control of flow and pressure. Malfunctions such as control signal interference, valve core jamming, or internal leakage can lead to reduced system precision and unstable operation. Our components adopt advanced servo control technology and high-precision machining, ensuring accurate control and reliable performance, suitable for high-precision applications such as CNC machine tools and automated production lines.
Serial No. | Product Model (Including Part No.) | Material | Main Wear Reasons | Damage Prevention Notes |
1 | D633-308B | Valve body: 35CrMo alloy steel; Valve core: 42CrMo alloy steel (nitriding treatment); Spring: 60Si2Mn alloy steel; Seal: FKM; Servo coil: Copper wire with epoxy resin encapsulation; Feedback sensor: High-precision LVDT sensor | 1. Servo coil damage due to electromagnetic interference; 2. Valve core jamming caused by hydraulic oil contamination | 1. Route control signal lines with shielded cables and ground them properly; 2. Use hydraulic oil that meets ISO 4406 Class 12/9 cleanliness requirements and flush the system every 1,500 operating hours |
2 | R901102349HED8OH-2X/50K14 | Valve body: 35CrMo alloy steel; Valve core: 42CrMo alloy steel (nitriding treatment); Spring: 55CrSi alloy steel; Seal: FKM; Servo coil: Copper wire with epoxy resin encapsulation; Control module: Precision electronic components | 1. Control module damage due to voltage spikes; 2. Internal leakage caused by valve seat wear | 1. Install a surge protector in the control circuit; 2. Replace valve seat every 2,000 operating hours and calibrate the valve per manufacturer's specifications |
Hydraulic Check Valves & Special Valves
Hydraulic check valves and special valves ensure one-way flow of hydraulic oil and realize specific control functions, which are crucial for system stability and component protection. Malfunctions such as reverse leakage or valve jamming can lead to system pressure loss and component damage. Our valves adopt precision-ground valve cores and high-elasticity springs, ensuring reliable one-way sealing and fast response, suitable for various hydraulic systems such as hydraulic power units and construction machinery.
Serial No. | Product Model (Including Part No.) | Material | Main Wear Reasons | Damage Prevention Notes |
1 | D41FHE01F1NE00 | Valve body: 35CrMo alloy steel; Valve core: 42CrMo alloy steel (nitriding treatment); Spring: 55CrSi alloy steel; Seal: FKM; Diaphragm: PTFE | 1. Diaphragm damage caused by contact with incompatible hydraulic oil additives; 2. Valve core wear due to high-velocity oil flow erosion | 1. Use hydraulic oil compatible with PTFE diaphragms in accordance with ASTM D471; 2. Install the valve in a low-flow velocity area and ensure correct flow direction |
2 | D41FHE01E1NE00 | Valve body: 35CrMo alloy steel; Valve core: 42CrMo alloy steel (nitriding treatment); Spring: 55CrSi alloy steel; Seal: FKM; Diaphragm: PTFE | 1. Diaphragm aging and cracking caused by long-term temperature changes; 2. Valve core jamming due to foreign object intrusion | 1. Inspect the diaphragm quarterly and replace it if damaged; 2. Install a 10μm precision filter at the valve inlet |
3 | D81FHE01F1NE00 | Valve body: 304 stainless steel; Valve core: 1.4021 alloy steel (hard chrome plating); Spring: 55CrSi alloy steel; Seal: FKM; Diaphragm: PTFE | 1. Valve body corrosion caused by corrosive media in the hydraulic system; 2. Diaphragm damage caused by pressure impact | 1. Use corrosion-resistant hydraulic oil and inspect the valve body for corrosion monthly; 2. Install a pressure buffer upstream to absorb pressure shocks |
Hydraulic Valves & System Accessories
Hydraulic valve accessories (solenoid valve bases, connectors, etc.) and system accessories are essential for ensuring stable system operation, reliable connection, and easy maintenance. Malfunctions can lead to system leakage, poor connection, or valve failure. Our accessories adopt high-quality materials and standard interfaces, ensuring seamless compatibility with main components and reliable performance, suitable for various hydraulic systems.
Serial No. | Product Model (Including Part No.) | Material | Main Wear Reasons | Damage Prevention Notes |
1 | JS-395 | Housing: Aluminum alloy; Connector: Brass; Seal: FKM; Spring: 55CrSi alloy steel | 1. Connector loosening due to long-term vibration; 2. Seal aging caused by long-term use | 1. Tighten the connector monthly and apply anti-loosening thread lock compound; 2. Replace the seal annually |
2 | JS-50 | Housing: Aluminum alloy; Connector: Brass; Seal: FKM; Spring: 55CrSi alloy steel | 1. Seal leakage caused by vibration; 2. Connector corrosion caused by moisture | 1. Install a vibration damping pad under the accessory; 2. Seal the connector with silicone sealant to prevent moisture intrusion |
3 | 701006008 | Housing: 304 stainless steel; Diaphragm: EPDM rubber; Spring: 55CrSi alloy steel; Connector: Copper alloy | 1. Diaphragm damage caused by pressure impact; 2. Housing corrosion caused by corrosive media | 1. Install a pressure buffer upstream; 2. Use corrosion-resistant hydraulic oil and inspect for corrosion monthly |
4 | CPOM6AAV | Valve body: 35CrMo alloy steel; Valve core: 42CrMo alloy steel (nitriding treatment); Spring: 55CrSi alloy steel; Seal: FKM | 1. Valve core jamming due to foreign object intrusion; 2. Seal leakage caused by bolt loosening | 1. Clean the installation area before mounting to avoid debris entry; 2. Tighten mounting bolts uniformly with a torque wrench |
5 | VM160A06VG | Housing: Aluminum alloy; Solenoid coil: Copper wire with epoxy resin encapsulation; Core: 1.4021 alloy steel; Seal: FKM | 1. Solenoid coil burnout due to voltage fluctuation; 2. Core jamming due to rust | 1. Install a voltage stabilizer in the control circuit; 2. Add an anti-rust additive to the hydraulic oil and inspect the core for rust monthly |
6 | PMD-CHEMNITZ/GEMAY 7049111055 | Housing: Aluminum alloy; Connector: Brass; Seal: FKM; Internal components: Engineering plastic with glass fiber reinforcement | 1. Seal leakage caused by high-temperature operation; 2. Internal component damage due to vibration | 1. Install a heat shield if near high-temperature components; 2. Install a vibration damping bracket for the accessory |
7 | FM2DDDSV | Housing: Aluminum alloy; Seal: FKM; Connector: Copper alloy; Spring: 55CrSi alloy steel | 1. Connector loosening due to long-term vibration; 2. Seal aging caused by long-term use | 1. Tighten the connector monthly and apply anti-loosening thread lock compound; 2. Replace the seal annually |
Procurement Guidance
Our hydraulic components are manufactured in strict compliance with international standards such as ISO 4401, ISO 13709, and DIN 24342, with complete quality certification documents and material traceability reports. We provide professional technical support, including component selection based on your specific equipment models and application scenarios, as well as on-site maintenance consultation. Whether you need single-component replacements or bulk procurement, we are committed to delivering reliable products and tailored solutions. Contact us today to discuss your hydraulic component requirements and obtain optimized procurement plans.
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