Core Application & Target User Overview
This guide covers a comprehensive range of hydraulic components specifically compatible with construction machinery (excavators, loaders), industrial hydraulic presses, plastic injection molding machines, and heavy-duty material handling equipment. Targeting hydraulic system maintenance engineers, equipment repair workshops, manufacturing plants, and mining operation teams, it addresses core needs including reliable component replacement, troubleshooting of system failures, and ensuring long-term stable operation. All components comply with ISO 4401 (hydraulic valve standards), ISO 13709 (axial piston pump standards), and SAE J1940 (hydraulic component material standards), guaranteeing interchangeability with original equipment and consistent performance, effectively minimizing unplanned downtime and maintenance costs.
Axial Piston Pumps
Axial Piston Pumps serve as the high-pressure power source of hydraulic systems, converting mechanical energy into hydraulic energy to drive heavy-duty actuators. Premature wear of piston-cylinder pairs or swash plate ablation can result in insufficient system pressure, reduced equipment efficiency, and costly production disruptions. Our axial piston pumps feature precision carburizing and nitriding processes, ensuring excellent wear resistance and stable output, ideal for high-load, continuous-operation scenarios such as large-scale excavators and industrial forging presses.
Field Maintenance Case
A construction company’s 30-ton excavator experienced a sudden drop in digging force and abnormal noise. Inspection revealed that the PV270R1K1T1NMMC axial piston pump had severe piston wear (wear depth exceeding 0.12mm) due to long-term operation with unfiltered hydraulic oil containing metal particles. After replacing with our ISO 13709-compliant pump and upgrading the oil filtration system to ISO 4406 Class 13/10 standards, the excavator restored full working performance, achieving continuous trouble-free operation for 3000 hours and reducing maintenance costs by 55%.
Serial No. | Product Model (Including Part No.) | Material | Main Wear Reasons | Damage Prevention Notes |
1 | A10VS0100DRS/32RVPB12N00-S1439 | Piston: 20CrMnTi alloy steel (carburizing and quenching, surface hardness HRC 58-62); Cylinder block: 35CrMo alloy steel (nitriding treatment); Swash plate: 42CrMo alloy steel with tungsten carbide coating; Shaft: 40CrNiMo alloy steel; Seal: Fluororubber (FKM); Bearings: GCr15 high-carbon chromium steel | 1. Piston-cylinder pair wear caused by contamination of hydraulic oil with solid particles (particle size ≥0.02mm); 2. Swash plate fatigue cracking due to long-term operation at 90%+ rated pressure | 1. Replace high-precision oil filters every 400 operating hours and flush the hydraulic system every 1500 operating hours; 2. Install a pressure monitoring device to avoid continuous operation above 85% of the pump's rated pressure |
2 | A4VS0250DR/30RPPB13N00 5811330000 | Piston: 20CrMnTi alloy steel (carburizing and quenching); Cylinder block: 35CrMo alloy steel (nitriding treatment); Valve plate: Copper-lead alloy with graphite self-lubricating coating; Shaft: 42CrMo alloy steel; Seal: Fluororubber (FKM); Bearings: GCr15 high-carbon chromium steel | 1. Cylinder block wear caused by misalignment between the pump and drive motor (radial runout >0.05mm); 2. Shaft seal leakage due to high oil temperature (＞85°C) accelerating seal aging | 1. Perform laser alignment of the pump and motor shaft quarterly in accordance with ISO 13709 Clause 5.2, ensuring axial deviation ≤0.1mm; 2. Install an oil cooler to control system oil temperature ≤80°C and inspect seal integrity monthly |
3 | PV140R1K1T1NMMC | Piston: 20CrMnTi alloy steel (carburizing and quenching); Cylinder block: 35CrMo alloy steel (nitriding treatment); Swash plate: 42CrMo alloy steel; Shaft: 40CrNiMo alloy steel; Seal: Fluororubber (FKM); Bearings: GCr15 high-carbon chromium steel | 1. Piston wear caused by hydraulic oil oxidation and sludge accumulation; 2. Bearing damage due to insufficient lubrication | 1. Replace hydraulic oil annually and add an anti-oxidation additive; 2. Ensure the oil level is within the standard range and check the oil supply pipeline for blockages monthly |
4 | PV270R1K1T1NMMC | Piston: 20CrMnTi alloy steel (carburizing and quenching); Cylinder block: 35CrMo alloy steel (nitriding treatment); Swash plate: 42CrMo alloy steel with tungsten carbide coating; Shaft: 40CrNiMo alloy steel; Seal: Fluororubber (FKM); Bearings: GCr15 high-carbon chromium steel | 1. Swash plate ablation caused by metal particle contamination in hydraulic oil; 2. Shaft deformation due to improper installation force | 1. Use hydraulic oil that meets ISO 4406 Class 13/10 cleanliness requirements; 2. Use a torque wrench to uniformly tighten the mounting bolts according to the manufacturer's specifications |
Directional Control Valves
Directional Control Valves are core control components that regulate the flow direction of hydraulic oil to realize the commutation, start, and stop of actuators. Slow commutation response or internal leakage can lead to uncoordinated equipment movements, reduced operational precision, and energy waste. Our directional control valves adopt precision-ground valve cores and multi-layer sealing structures, ensuring fast response (≤0.1s), low internal leakage (≤3ml/min), and stable performance in high-vibration industrial environments.
Serial No. | Product Model (Including Part No.) | Material | Main Wear Reasons | Damage Prevention Notes |
1 | 4WE6D6X/EG24N9K4 | Valve body: 35CrMo alloy steel; Valve core: 42CrMo alloy steel (nitriding treatment); Spring: 60Si2Mn alloy steel; Seal: Fluororubber (FKM); Solenoid coil: Copper wire with epoxy resin encapsulation (heat resistance class F) | 1. Valve core jamming caused by hydraulic oil contamination and sludge accumulation; 2. Solenoid coil burnout due to voltage fluctuation (voltage deviation >±10%) | 1. Replace the hydraulic oil filter every 300 operating hours and flush the system every 1200 operating hours; 2. Install a voltage stabilizer in the control circuit and monitor the voltage weekly in accordance with DIN 40050-1 |
2 | D41FHE02C2NE00 | Valve body: 304 stainless steel; Valve core: 1.4021 alloy steel (hard chrome plating); Spring: 55CrSi alloy steel; Seal: Fluororubber (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 |
3 | D41VW020B6NJW | Valve body: 35CrMo alloy steel; Valve core: 42CrMo alloy steel (nitriding treatment); Spring: 60Si2Mn alloy steel; Seal: Nitrile rubber (NBR); Solenoid coil: Copper wire with heat-resistant encapsulation | 1. Seal leakage caused by high-pressure oil cycling; 2. Valve core jamming due to rust in the hydraulic system | 1. Inspect the seals quarterly and replace them if signs of aging (cracking, hardening) appear; 2. Add an anti-rust additive to the hydraulic oil and replace the oil annually |
4 | D81FHB32H1NE00 | Valve body: 304 stainless steel; Valve core: 1.4021 alloy steel (hard chrome plating); Spring: 55CrSi alloy steel; Seal: Fluororubber (FKM); Diaphragm: EPDM rubber | 1. Diaphragm aging and cracking caused by long-term temperature changes; 2. Solenoid coil failure due to moisture intrusion | 1. Inspect the diaphragm quarterly and replace it if damaged; 2. Install the valve in a moisture-proof control cabinet and seal the cable entries with silicone rubber |
5 | D1VW001CNJW | Valve body: 35CrMo alloy steel; Valve core: 42CrMo alloy steel (nitriding treatment); Spring: 55CrSi alloy steel; Seal: Nitrile rubber (NBR); 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 |
6 | D1VW004CNJW | Valve body: 35CrMo alloy steel; Valve core: 42CrMo alloy steel (nitriding treatment); Spring: 55CrSi alloy steel; Seal: Nitrile rubber (NBR); Solenoid coil: Copper wire with epoxy resin encapsulation | 1. Seal leakage caused by chemical degradation; 2. Valve body deformation due to uneven installation force | 1. Use hydraulic oil compatible with NBR seals in accordance with ASTM D471; 2. Use a torque wrench to uniformly tighten the mounting bolts |
7 | D3W004CVJW | Valve body: 45# steel (quenched and tempered); Valve core: 20CrMnTi alloy steel (carburizing and quenching); Spring: 55CrSi alloy steel; Seal: Fluororubber (FKM); Solenoid coil: Copper wire with heat-resistant encapsulation | 1. Valve core wear caused by frequent commutation; 2. Solenoid coil damage due to voltage spikes | 1. Apply molybdenum disulfide lubricating grease to the valve core mechanism every 200 operating hours; 2. Install a surge protector in the control circuit to absorb voltage spikes |
8 | D3W020DVJW | Valve body: 45# steel (quenched and tempered); Valve core: 20CrMnTi alloy steel (carburizing and quenching); Spring: 60Si2Mn alloy steel; Seal: Fluororubber (FKM); Solenoid coil: Copper wire with epoxy resin encapsulation | 1. Spool jamming caused by hydraulic oil sludge accumulation; 2. Solenoid coil burnout due to overload current | 1. Flush the hydraulic system every 1000 operating hours; 2. Install a current fuse matching the rated current of the solenoid coil in the control circuit |
9 | D3W020BVJW | Valve body: 45# steel (quenched and tempered); Valve core: 20CrMnTi alloy steel (carburizing and quenching); Spring: 60Si2Mn alloy steel; Seal: Fluororubber (FKM); Solenoid coil: Copper wire with epoxy resin encapsulation | 1. Seal leakage caused by high-temperature operation (ambient temperature >60°C); 2. Valve core wear due to long-term use | 1. Install a heat shield if the valve is near high-temperature components to maintain ambient temperature ≤55°C; 2. Calibrate the valve every 800 operating hours and replace the valve core if wear exceeds 0.03mm |
10 | D1VW004CVJW | Valve body: 35CrMo alloy steel; Valve core: 42CrMo alloy steel (nitriding treatment); Spring: 55CrSi alloy steel; Seal: Nitrile rubber (NBR); Solenoid coil: Copper wire with epoxy resin encapsulation | 1. Valve core jamming caused by rust in the hydraulic system; 2. Solenoid coil failure due to dust intrusion | 1. Add an anti-rust additive to the hydraulic oil; 2. Install a protective cover on the solenoid coil to prevent dust accumulation |
11 | D41FHB31E1NE00 | Valve body: 304 stainless steel; Valve core: 1.4021 alloy steel (hard chrome plating); Spring: 55CrSi alloy steel; Seal: Fluororubber (FKM); Diaphragm: EPDM rubber | 1. Diaphragm damage caused by pressure impact; 2. Valve body corrosion due to outdoor exposure | 1. Install a pressure buffer upstream to absorb pressure shocks; 2. Install the valve in a waterproof control cabinet for outdoor applications |
12 | DKD1VW7514 | Valve body: 35CrMo alloy steel; Valve core: 42CrMo alloy steel (nitriding treatment); Spring: 60Si2Mn alloy steel; Seal: Fluororubber (FKM); Solenoid coil: Copper wire with epoxy resin encapsulation (feedback control design) | 1. Internal leakage caused by valve seat wear; 2. Solenoid coil damage due to feedback signal interference | 1. Replace the valve seat every 1200 operating hours; 2. Route feedback signal lines separately from power cables to avoid electromagnetic interference |
Pressure Control Valves
Pressure Control Valves are critical safety components that stabilize system pressure, prevent overpressure damage to components, and adjust pressure for different working conditions. Malfunctions can lead to system pressure instability, component fatigue failure, or even catastrophic explosions. Our pressure control valves adopt precision pressure-adjusting mechanisms and high-strength materials, ensuring accurate pressure control (error ≤±2%) and reliable overpressure protection, fully complying with ISO 4401 Clause 7.2 (pressure control accuracy requirements).
Serial No. | Product Model (Including Part No.) | Material | Main Wear Reasons | Damage Prevention Notes |
1 | R4V0353330A125 016884000 | Valve body: 35CrMo alloy steel; Valve core: 42CrMo alloy steel (nitriding treatment); Spring: 60Si2Mn alloy steel; Seal: Fluororubber (FKM); Adjusting screw: 40Cr alloy steel | 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 | R4V0659111B1 016953300 | Valve body: 45# steel (quenched and tempered); Valve core: 20CrMnTi alloy steel (carburizing and quenching); Spring: 55CrSi alloy steel; Seal: Nitrile rubber (NBR); Adjusting screw: 40Cr alloy steel | 1. Valve core jamming caused by hydraulic oil contamination; 2. Spring fatigue due to long-term compression | 1. Replace the hydraulic oil filter every 300 operating hours and ensure oil cleanliness meets ISO 4406 Class 13/10; 2. Inspect spring elasticity every 600 operating hours and replace if deformation is found |
3 | R4V065351011G0QA125 016953160 | Valve body: 35CrMo alloy steel; Valve core: 42CrMo alloy steel (nitriding treatment); Spring: 60Si2Mn alloy steel; Seal: Fluororubber (FKM); Adjusting screw: 40Cr alloy steel with lock nut | 1. Seal leakage caused by high-temperature oil (oil temperature >85°C); 2. Valve core wear due to frequent pressure adjustments | 1. Install an oil cooler to control oil temperature ≤80°C; 2. Avoid frequent pressure adjustments and mark the optimal pressure setting position |
4 | C4V035303B1 016889550 | Valve body: 304 stainless steel; Valve core: 1.4021 alloy steel (hard chrome plating); Spring: 55CrSi alloy steel; Seal: Fluororubber (FKM); Adjusting screw: 40Cr alloy steel | 1. Valve body corrosion caused by corrosive media in the hydraulic system; 2. Valve core jamming due to foreign object intrusion | 1. Use corrosion-resistant hydraulic oil and inspect the valve body for corrosion monthly; 2. Install a filter at the valve inlet to prevent foreign objects from entering |
5 | R4R0359511B5 016957230 | Valve body: 35CrMo alloy steel; Valve core: 42CrMo alloy steel (nitriding treatment); Spring: 55CrSi alloy steel; Seal: Nitrile rubber (NBR); Adjusting screw: 40Cr alloy steel | 1. Seal aging caused by chemical degradation; 2. Adjusting screw wear due to frequent adjustment | 1. Use hydraulic oil compatible with NBR seals in accordance with ASTM D471; 2. Apply anti-loosening thread lock compound to the adjusting screw |
6 | PZD00A400 | Valve body: 45# steel (quenched and tempered); Valve core: 20CrMnTi alloy steel (carburizing and quenching); Spring: 60Si2Mn alloy steel; Seal: Fluororubber (FKM); Diaphragm: PTFE | 1. Diaphragm damage caused by contact with sharp foreign objects; 2. Internal leakage caused by valve seat wear | 1. Install a filter upstream to prevent sharp foreign objects from entering; 2. Replace the valve seat every 1200 operating hours |
7 | VMY210L10V1P | Valve body: 304 stainless steel; Valve core: 1.4021 alloy steel (hard chrome plating); Spring: 55CrSi alloy steel; Seal: Fluororubber (FKM); Solenoid coil: Copper wire with epoxy resin encapsulation | 1. Solenoid coil failure caused by moisture intrusion; 2. Valve core jamming due to hydraulic oil sludge accumulation | 1. Seal the valve's electrical interface with silicone sealant; 2. Flush the hydraulic system every 1000 operating hours |
8 | VC1DB101E32/OS9900 | Valve body: 35CrMo alloy steel; Valve core: 42CrMo alloy steel (nitriding treatment); Spring: 60Si2Mn alloy steel; Seal: Fluororubber (FKM); Adjusting knob: Aluminum alloy | 1. Valve body deformation 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 and replace the valve core if wear exceeds 0.03mm |
Flow Control Valves & Check Valves
Flow Control Valves and Check Valves regulate the flow rate of hydraulic oil to ensure stable and accurate movement of actuators, while check valves prevent oil backflow to protect system components. Malfunctions can lead to inconsistent actuator speed, reduced operational precision, and energy waste. Our flow control valves adopt precision flow-regulating orifices and reliable structural designs, ensuring accurate flow control (error ≤±3%) and long-term stable operation in medium to high-pressure systems.
Serial No. | Product Model (Including Part No.) | Material | Main Wear Reasons | Damage Prevention Notes |
1 | SUN CXBAXEV | Valve body: 304 stainless steel; Valve core: 1.4021 alloy steel (hard chrome plating); Spring: 55CrSi alloy steel; Seal: Fluororubber (FKM); Seat: Bronze | 1. Valve seat wear caused by frequent flow regulation; 2. Valve core jamming due to hydraulic oil contamination | 1. Avoid frequent and rapid flow adjustments; 2. Replace the hydraulic oil filter every 300 operating hours and ensure oil cleanliness meets ISO 4406 Class 13/10 |
2 | 2F1C0301B5C 026-463295 | Valve body: 35CrMo alloy steel; Valve core: 42CrMo alloy steel (nitriding treatment); Spring: 60Si2Mn alloy steel; Seal: Nitrile rubber (NBR); Seat: Bronze | 1. Seal leakage caused by incompatible hydraulic oil additives; 2. Valve core wear due to high-velocity oil flow | 1. Use hydraulic oil compatible with NBR seals in accordance with ASTM D471; 2. Install the valve in the correct flow direction to reduce flow velocity impact |
Hydraulic Manifolds & Cartridge Valves
Hydraulic Manifolds and Cartridge Valves integrate multiple valve functions, simplifying system piping, reducing space occupation, and improving system reliability. Malfunctions such as internal leakage or blockage can lead to system pressure loss and uncoordinated actuator movements. Our manifolds and cartridge valves adopt precision machining and modular design, ensuring excellent sealing performance and easy maintenance, suitable for integrated hydraulic systems in construction machinery and industrial equipment.
Serial No. | Product Model (Including Part No.) | Material | Main Wear Reasons | Damage Prevention Notes |
1 | DGMC5ATFWB30 | Manifold body: 35CrMo alloy steel; Cartridge valve core: 42CrMo alloy steel (nitriding treatment); Spring: 60Si2Mn alloy steel; Seal: Fluororubber (FKM); Connector: Stainless steel | 1. Internal leakage caused by seal wear; 2. Blockage due to hydraulic oil sludge accumulation | 1. Inspect seals quarterly and replace them if necessary; 2. Flush the hydraulic system every 1200 operating hours |
2 | DGMC3ATGWB41 | Manifold body: 45# steel (quenched and tempered); Cartridge valve core: 20CrMnTi alloy steel (carburizing and quenching); Spring: 55CrSi alloy steel; Seal: Nitrile rubber (NBR); Connector: Copper alloy | 1. Seal aging caused by high-temperature operation; 2. Manifold deformation due to uneven installation force | 1. Install a heat shield if near high-temperature components; 2. Use a torque wrench to uniformly tighten the mounting bolts |
3 | DGMPC7ABKBAK21 02-412028 | Manifold body: 35CrMo alloy steel; Cartridge valve core: 42CrMo alloy steel (nitriding treatment); Spring: 60Si2Mn alloy steel; Seal: Fluororubber (FKM); Connector: Stainless steel | 1. Cartridge valve core jamming caused by foreign object intrusion; 2. Connector loosening due to vibration | 1. Clean the manifold and surrounding area before maintenance; 2. Tighten connectors monthly and apply anti-loosening thread lock compound |
4 | DGMFN7YA2HB2H20 02-352689 | Manifold body: 45# steel (quenched and tempered); Cartridge valve core: 20CrMnTi alloy steel (carburizing and quenching); Spring: 55CrSi alloy steel; Seal: Nitrile rubber (NBR); Connector: Copper alloy | 1. Seal leakage caused by pressure cycling; 2. Cartridge valve core wear due to long-term use | 1. Inspect seals quarterly and replace them if necessary; 2. Calibrate the manifold every 800 operating hours and replace the cartridge valve core if wear is found |
Hydraulic Auxiliary Elements
Hydraulic Auxiliary Elements (filters, pressure sensors, connectors, etc.) are essential for ensuring stable system operation, protecting main components, and monitoring working conditions. Malfunctions can lead to system contamination, component damage, or failure to detect abnormal conditions. Our auxiliary elements adopt high-quality materials and reliable structural designs, adapting to various industrial hydraulic system requirements and ensuring seamless compatibility with main components.
Serial No. | Product Model (Including Part No.) | Material | Main Wear Reasons | Damage Prevention Notes |
1 | R928035673 (80 NFF2 0120 H10XL-A00-07B2,5-00M00) | Filter housing: Aluminum alloy; Filter element: Stainless steel mesh (200 mesh); Seal: Fluororubber (FKM); Connector: Stainless steel | 1. Filter element clogging caused by hydraulic oil contamination; 2. Seal leakage due to high-pressure operation | 1. Clean or replace the filter element every 200 operating hours; 2. Inspect the seal quarterly and replace it if damaged |
2 | 5711100300 | Housing: 304 stainless steel; Diaphragm: EPDM rubber; Spring: 55CrSi alloy steel; Connector: Copper alloy; Sensor element: Piezoresistive ceramic | 1. Diaphragm damage caused by pressure impact; 2. Sensor element failure due to moisture intrusion | 1. Install a pressure buffer upstream to absorb pressure shocks; 2. Install the component in a moisture-proof control cabinet |
3 | 5001571 | Housing: Aluminum alloy; Spring: 55CrSi alloy steel; Seal: Nitrile rubber (NBR); Connector: Copper alloy | 1. Seal aging caused by long-term use; 2. Connector corrosion due to outdoor exposure | 1. Replace the seal annually; 2. Install the component in a waterproof enclosure for outdoor applications |
4 | 02636364P | Housing: 35CrMo alloy steel; Valve core: 42CrMo alloy steel (nitriding treatment); Spring: 60Si2Mn alloy steel; Seal: Fluororubber (FKM) | 1. Valve core jamming caused by hydraulic oil contamination; 2. Spring fatigue due to long-term compression | 1. Replace the hydraulic oil filter every 300 operating hours; 2. Inspect spring elasticity every 600 operating hours and replace if deformation is found |
5 | EX00S05 | Housing: Aluminum alloy; Solenoid coil: Copper wire with epoxy resin encapsulation; Core: 1.4021 alloy steel; Seal: Fluororubber (FKM) | 1. Solenoid coil burnout caused by 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 system and inspect the core for rust monthly |
6 | 701006008 | Housing: 304 stainless steel; Filter element: Polyester fiber; Seal: Fluororubber (FKM); Connector: Stainless steel | 1. Filter element clogging caused by hydraulic oil oxidation; 2. Seal leakage due to pressure cycling | 1. Replace the filter element every 300 operating hours and add an anti-oxidation additive to the hydraulic oil; 2. Inspect the seal quarterly and replace it if necessary |
7 | S2698622G 4VP0134G12B5C1 | Housing: Aluminum alloy; Solenoid coil: Copper wire with epoxy resin encapsulation; Valve core: 42CrMo alloy steel (nitriding treatment); Seal: Fluororubber (FKM) | 1. Solenoid coil failure caused by dust accumulation; 2. Valve core wear due to frequent commutation | 1. Install a protective cover on the solenoid coil to prevent dust accumulation; 2. Apply molybdenum disulfide lubricating grease to the valve core mechanism every 200 operating hours |
8 | RHD10SCF | Housing: 304 stainless steel; Piston: 20CrMnTi alloy steel (carburizing and quenching); Seal: Fluororubber (FKM); Spring: 55CrSi alloy steel | 1. Piston wear caused by contaminated hydraulic oil; 2. Seal leakage due to high-temperature operation | 1. Maintain hydraulic oil cleanliness at ISO 4406 Class 14/11; 2. Install an oil cooler to control oil temperature ≤80°C |
9 | RHD20SCF | Housing: 304 stainless steel; Piston: 20CrMnTi alloy steel (carburizing and quenching); Seal: Fluororubber (FKM); Spring: 60Si2Mn alloy steel | 1. Piston jamming caused by sludge accumulation; 2. Spring fatigue due to long-term compression | 1. Flush the hydraulic system every 1000 operating hours; 2. Inspect spring elasticity every 600 operating hours and replace if deformation is found |
10 | RHD16S0.5BCF | Housing: 304 stainless steel; Piston: 1.4021 alloy steel (hard chrome plating); Seal: Fluororubber (FKM); Spring: 55CrSi alloy steel | 1. Piston corrosion caused by moisture in hydraulic oil; 2. Seal leakage due to pressure cycling | 1. Check the water content of hydraulic oil monthly and replace the oil if the water content exceeds 0.1%; 2. Inspect the seal quarterly and replace it if necessary |
11 | 02636776H | Housing: 35CrMo alloy steel; Valve core: 42CrMo alloy steel (nitriding treatment); Spring: 55CrSi alloy steel; Seal: Nitrile rubber (NBR) | 1. Seal leakage caused by chemical degradation; 2. Valve core jamming due to rust | 1. Use hydraulic oil compatible with NBR seals in accordance with ASTM D471; 2. Add an anti-rust additive to the hydraulic oil |
12 | RHD38S0.5BCF | Housing: 304 stainless steel; Piston: 1.4021 alloy steel (hard chrome plating); Seal: Fluororubber (FKM); Spring: 60Si2Mn alloy steel | 1. Piston wear caused by high-velocity oil flow; 2. Housing deformation due to uneven installation | 1. Install the component in a low-flow velocity area; 2. Install the component on a flat surface to ensure uniform force distribution |
13 | RHD30SCF | Housing: 304 stainless steel; Piston: 20CrMnTi alloy steel (carburizing and quenching); Seal: Fluororubber (FKM); Spring: 60Si2Mn alloy steel | 1. Piston wear caused by long-term use; 2. Seal leakage due to high-pressure operation | 1. Calibrate the component every 800 operating hours and replace the piston if wear exceeds 0.03mm; 2. Inspect the seal quarterly and replace it if necessary |
14 | RHD30S0.5BCF | Housing: 304 stainless steel; Piston: 1.4021 alloy steel (hard chrome plating); Seal: Fluororubber (FKM); Spring: 55CrSi alloy steel | 1. Piston corrosion caused by corrosive media; 2. Spring fatigue due to long-term compression | 1. Use corrosion-resistant hydraulic oil and inspect the piston for corrosion monthly; 2. Inspect spring elasticity every 600 operating hours and replace if deformation is found |
15 | 1827414900 | Housing: Aluminum alloy; Solenoid coil: Copper wire with epoxy resin encapsulation; Core: 1.4021 alloy steel; Seal: Fluororubber (FKM) | 1. Solenoid coil overheating caused by long-term energization; 2. Core jamming due to foreign object intrusion | 1. Avoid long-term continuous energization and use a time relay if necessary; 2. Install a filter at the inlet to prevent foreign objects from entering |
16 | 5811290650 | Housing: 35CrMo alloy steel; Valve core: 42CrMo alloy steel (nitriding treatment); Spring: 60Si2Mn alloy steel; Seal: Fluororubber (FKM) | 1. Valve core wear caused by high-pressure oil flow erosion; 2. Valve body deformation due to uneven installation force | 1. Install the valve in a low-flow turbulence area; 2. Use a torque wrench to uniformly tighten the mounting bolts |
17 | 1829207040 | Housing: Aluminum alloy; Diaphragm: EPDM rubber; Spring: 55CrSi alloy steel; Connector: Copper alloy | 1. Diaphragm aging and cracking caused by temperature changes; 2. Connector loosening due to vibration | 1. Inspect the diaphragm quarterly and replace it if signs of aging appear; 2. Tighten connectors monthly and apply anti-loosening thread lock compound |
Procurement & Technical Support Guidelines
Selecting high-quality, compatible hydraulic components is crucial to ensuring the safe, efficient, and stable operation of industrial hydraulic systems. Our products fully comply with international standards such as ISO 4401, ISO 13709, and SAE J1940, with complete quality certification documents and material traceability reports. We provide professional technical support, including component selection based on system parameters and application scenarios, on-site installation guidance, and post-sales maintenance consultation. Whether you need single-component replacements, bulk inventory preparation, or customized solutions for special working conditions (high-temperature, high-corrosion, high-vibration), our team is committed to delivering reliable products and tailored services. Contact us today to discuss your hydraulic component requirements and obtain optimized procurement and application solutions.
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