Core Application & Target User Overview
This guide covers a comprehensive inventory of hydraulic components, including axial piston pumps, gear pumps, directional control valves, pressure control valves, and flow control valves. These components are specifically compatible with industrial hydraulic systems such as construction machinery (excavators, bulldozers), industrial presses, plastic injection molding machines, metallurgical equipment, and heavy-duty conveying systems. Targeting hydraulic system maintenance engineers, equipment repair workshops, construction machinery operators, manufacturing enterprises, and metallurgical plants, it addresses the critical demand for high-reliability, precision-machined hydraulic components to avoid system pressure loss, control failure, or unplanned equipment downtime caused by substandard or worn parts. All products comply with ISO 4401 (hydraulic valve standards), ISO 10391 (gear pump standards), ISO 13709 (axial piston pump standards), and DIN 24342 (hydraulic component mounting standards), undergoing rigorous pressure resistance, wear resistance, and leak tightness testing to adapt to harsh industrial operating environments (high pressure, continuous vibration, temperature fluctuations, and dusty conditions).
Axial Piston Pumps
Axial Piston Pumps are high-pressure, high-efficiency power sources for hydraulic systems, converting mechanical energy into hydraulic energy to drive heavy-duty actuators. Premature wear of piston pairs or swash plates can lead to insufficient system pressure, increased energy consumption, or even complete pump failure. Our axial piston pumps adopt precision-machined piston pairs and hardened swash plates, ensuring stable high-pressure output, low noise, and long service life, fully matching the high-power demand of heavy industrial equipment.
Field Application Case
A metallurgical enterprise encountered frequent pressure fluctuations and abnormal noise in their 500-ton hydraulic press, which was traced to wear of the A10VSO71DRS/32R-VPB22U99-S2184 axial piston pump (swash plate wear depth exceeding 0.15mm). After replacing with our ISO 13709-compliant axial piston pump, the hydraulic press maintained stable pressure output (fluctuation ≤±1%) for 1800 operating hours, reducing energy consumption by 12% and avoiding production interruptions caused by pump failure.
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); Swash plate: 42CrMo alloy steel (nitriding treatment, nitride layer thickness 0.2-0.3mm); Pump body: 35CrMo alloy steel (quenched and tempered); Shaft: 40CrNiMo alloy steel; Seal: Fluororubber (FKM) | 1. Piston pair wear caused by contaminated hydraulic oil (particle size ≥0.02mm); 2. Swash plate fatigue cracking caused by long-term high-pressure operation (exceeding 90% of rated pressure) | 1. Maintain hydraulic oil cleanliness at ISO 4406 Class 14/11, replace high-precision oil filters every 400 operating hours; 2. Monitor system pressure in real time, avoid continuous operation above 85% of the pump's rated pressure |
2 | A4VS0250DR/30RPPB13N00 | Piston: 20CrMnTi alloy steel (carburizing and quenching); Swash plate: 42CrMo alloy steel (nitriding treatment); Pump body: 45# steel (quenched and tempered); Shaft: 42CrMo alloy steel; Bearings: High-carbon chromium steel (GCr15); Seal: Fluororubber (FKM) | 1. Bearing burnout caused by insufficient lubrication (oil supply interruption); 2. Shaft seal leakage caused by high-temperature operation (oil temperature >85°C) | 1. Ensure sufficient hydraulic oil in the system before startup, check oil level and oil supply pipeline for blockages weekly; 2. Install an oil cooler to control system oil temperature ≤80°C, inspect seal integrity monthly |
3 | A10VSO71DRS/32R-VPB22U99-S2184 R902452431 | Piston: 20CrMnTi alloy steel (carburizing and quenching); Swash plate: 42CrMo alloy steel (nitriding treatment); Pump body: 35CrMo alloy steel; Shaft: 40CrNiMo alloy steel; Seal: Fluororubber (FKM); Valve plate: Copper-based alloy with graphite coating | 1. Valve plate wear caused by high-velocity oil flow erosion; 2. Piston seizure caused by moisture in hydraulic oil (rust formation) | 1. Use hydraulic oil with anti-wear additives, flush the system every 1200 operating hours; 2. Check hydraulic oil for water content monthly, replace oil if water content exceeds 0.1% |
4 | R909438282: A2FO107/61R-PBB05 105 | Piston: 20CrMnTi alloy steel (carburizing and quenching); Cylinder block: 35CrMo alloy steel (nitriding treatment); Shaft: 42CrMo alloy steel; Seal: Fluororubber (FKM); Bearings: GCr15 high-carbon chromium steel | 1. Cylinder block wear caused by misalignment with the drive motor; 2. Seal aging caused by long-term exposure to dusty industrial environments | 1. Conduct laser alignment of the pump and motor shaft quarterly, ensure radial runout ≤0.05mm; 2. Install a dust cover on the pump, clean the surface weekly to remove dust accumulation |
Gear Pumps
Gear Pumps are essential medium-pressure power components in hydraulic systems, responsible for delivering a stable flow of hydraulic oil to drive medium-load actuators. Gear tooth wear or pump body leakage can lead to insufficient system flow, reduced equipment operating efficiency, or hydraulic oil waste. Our gear pumps adopt high-precision gear hobbing and hardened alloy materials, ensuring stable oil supply, low noise, and strong anti-pollution ability, suitable for medium-pressure industrial hydraulic systems such as plastic injection molding machines and small excavators.
Serial No. | Product Model (Including Part No.) | Material | Main Wear Reasons | Damage Prevention Notes |
1 | 0510525009 (AZPF-1X/011RCB20MB) | Gear: 20CrMnTi alloy steel (carburizing and quenching, surface hardness HRC 58-62); Pump body: HT250 gray cast iron (stress relief treatment); Shaft: 42CrMo alloy steel; Seal: Fluororubber (FKM); Bearings: GCr15 high-carbon chromium steel | 1. Gear tooth wear caused by contaminated hydraulic oil (particle size ≥0.02mm); 2. Shaft seal leakage caused by long-term vibration in construction machinery | 1. Replace hydraulic oil filter every 300 operating hours, ensure oil cleanliness meets ISO 4406 Class 14/11; 2. Install vibration-damping mounting pads between the pump and mounting bracket, with damping rate ≥80% |
2 | 0510768044 | Gear: 40Cr alloy steel (quenched and tempered, hardness HRC 38-42); Pump body: 35CrMo alloy steel; Shaft: 40CrNiMo alloy steel; Seal: Nitrile rubber (NBR) with fabric reinforcement; Bearings: GCr15 high-carbon chromium steel | 1. Pump body deformation caused by uneven installation force; 2. Gear fatigue cracking caused by long-term overload operation (pressure exceeding 110% of rated value) | 1. Use a torque wrench to tighten mounting bolts per DIN 24342 specifications, ensure uniform force distribution; 2. Install a pressure relief valve upstream, limit system pressure to ≤100% of the pump's rated pressure |
3 | PGH5-3X/250RE07VE4 R901147128 | Gear: 20CrMnTi alloy steel (carburizing and quenching); Pump body: 35CrMo alloy steel (nitriding treatment); Shaft: 42CrMo alloy steel; Seal: Fluororubber (FKM); Bearings: GCr15 high-carbon chromium steel | 1. Bearing wear and burnout caused by insufficient lubrication; 2. Gear meshing surface ablation caused by dry running (no oil supply at startup) | 1. Check oil level and oil supply pipeline for blockages before startup, ensure sufficient lubrication; 2. Inject high-temperature resistant lubricating grease into the bearing chamber every 300 operating hours |
4 | 0510425020 AZPF-10-008RRR20MB | Gear: 20CrMnTi alloy steel (carburizing and quenching); Pump body: HT250 gray cast iron (anti-corrosion coating); Shaft: 42CrMo alloy steel; Seal: PTFE; Bearings: GCr15 high-carbon chromium steel | 1. Pump body corrosion caused by moisture in hydraulic oil; 2. Shaft wear caused by misalignment with the drive motor | 1. Add a water separator to the hydraulic system, check water content monthly; 2. Conduct laser alignment of the pump and motor shaft quarterly, ensure axial deviation ≤0.1mm |
5 | R900932267 PGF2-2X/016RE01VE4 | Gear: 40Cr alloy steel (quenched and tempered); Pump body: 35CrMo alloy steel; Shaft: 42CrMo alloy steel; Seal: Fluororubber (FKM); Bearings: GCr15 high-carbon chromium steel | 1. Gear tooth pitting caused by high-frequency pressure impact; 2. Seal aging caused by high-temperature operation (oil temperature >80°C) | 1. Install an accumulator upstream to absorb pressure shocks, limit impact pressure to ≤120% of rated pressure; 2. Install an oil cooler to control oil temperature ≤75°C |
Directional Control Valves
Directional Control Valves are core control components in hydraulic systems, responsible for regulating the flow direction of hydraulic oil to realize commutation, start, and stop of hydraulic actuators. Poor commutation response or internal leakage can lead to slow or unresponsive equipment movements, affecting operational accuracy and work efficiency. Our directional control valves adopt precision valve core machining and reliable sealing structures, ensuring fast commutation response (≤0.1s), low internal leakage (≤3ml/min), and stable performance in various industrial control scenarios.
Serial No. | Product Model (Including Part No.) | Material | Main Wear Reasons | Damage Prevention Notes |
1 | 4WE10M3X/CG24N9K4 | Valve body: 35CrMo alloy steel; Valve core: 42CrMo alloy steel (nitriding treatment, nitride layer thickness 0.15-0.25mm); 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; 2. Solenoid coil burnout caused by voltage fluctuations (voltage deviation >±10%) | 1. Replace hydraulic oil filter every 300 operating hours, ensure oil cleanliness meets ISO 4406 Class 13/10; 2. Install a voltage stabilizer in the control circuit, monitor voltage regularly |
2 | 4WE10L3X/CG24N9K4 | Valve body: 45# steel (quenched and tempered); Valve core: 20CrMnTi alloy steel (carburizing and quenching); Spring: 55CrSi alloy steel; Seal: Nitrile rubber (NBR); Solenoid coil: Copper wire with heat-resistant encapsulation | 1. Seal leakage caused by high-pressure hydraulic oil cycling; 2. Valve core jamming caused by rust in the hydraulic system | 1. Inspect seals quarterly, replace with new ones if signs of aging (cracking, hardening) appear; 2. Add an anti-rust additive to the hydraulic oil, drain and replace oil annually |
3 | 4WE6M6X/EG24N9K4 | 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 damage caused by dust and moisture intrusion; 2. Valve core wear caused by improper installation (valve body tilt >3°) | 1. Install a protective cover on the solenoid coil, seal cable entries with silicone rubber; 2. Install the valve horizontally, ensure tilt angle ≤2° using a level meter |
4 | 3WH6B5X/ R900472230 | Valve body: 35CrMo alloy steel; Valve core: 42CrMo alloy steel (nitriding treatment); Spring: 60Si2Mn alloy steel; Seal: Fluororubber (FKM); Handle: Aluminum alloy | 1. Valve core wear caused by frequent manual commutation; 2. Seal leakage caused by chemical degradation (incompatible hydraulic oil additives) | 1. Apply molybdenum disulfide lubricating grease to the valve core and handle mechanism every 200 operating hours; 2. Use hydraulic oil compatible with FKM seals (per ASTM D471) |
5 | 4WE10E3X/CW230N9K4/V | Valve body: 35CrMo alloy steel; Valve core: 20CrMnTi alloy steel (carburizing and quenching); Spring: 55CrSi alloy steel; Seal: Nitrile rubber (NBR); Solenoid coil: Copper wire with heat-resistant encapsulation (AC 230V compatible) | 1. Solenoid coil overheating caused by long-term energization; 2. Valve body corrosion caused by outdoor exposure (rain, humidity) | 1. Avoid long-term continuous energization of the solenoid coil, use a time relay if necessary; 2. Install the valve in a waterproof control cabinet for outdoor applications |
6 | 4WE10D3X/CG24N9K4 | Valve body: 45# steel (quenched and tempered); Valve core: 42CrMo alloy steel (nitriding treatment); Spring: 60Si2Mn alloy steel; Seal: Fluororubber (FKM); Solenoid coil: Copper wire with epoxy resin encapsulation | 1. Internal leakage caused by valve seat wear; 2. Commutation failure caused by electrical connector loosening | 1. Replace the valve seat every 1200 operating hours; 2. Check electrical connectors monthly, re-tighten if loose, and apply anti-corrosion grease to the contacts |
7 | 4WE10D3X/OFCG24N9K4 | Valve body: 35CrMo alloy steel; Valve core: 20CrMnTi alloy steel (carburizing and quenching); Spring: 55CrSi alloy steel; Seal: Fluororubber (FKM); Solenoid coil: Copper wire with epoxy resin encapsulation (oil-proof design) | 1. Valve core jamming caused by foreign object intrusion during maintenance; 2. Solenoid coil damage caused by oil immersion (seal failure) | 1. Clean the valve and surrounding area before maintenance, avoid debris entering the valve body; 2. Inspect the solenoid coil's oil-proof seal quarterly, replace if damaged |
8 | 4WE6Y7X/HG24N9K4 | 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 heat-resistant encapsulation | 1. Valve core wear caused by high-velocity oil flow; 2. Solenoid coil failure caused by vibration in heavy machinery | 1. Ensure the valve is installed in a low-flow velocity area of the system; 2. Use vibration-damping mounting brackets to reduce vibration transmission to the coil |
9 | 4WE6J6X/EW230N9K4/V | 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 (AC 230V compatible) | 1. Seal aging caused by high-temperature operation (ambient temperature >60°C); 2. Valve core jamming caused by voltage spikes | 1. Install a heat shield if the valve is near high-temperature components, maintain ambient temperature ≤55°C; 2. Install a surge protector in the control circuit to absorb voltage spikes |
10 | 4WE6E6X/EG24N9K4 R900561278 | 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 epoxy resin encapsulation | 1. Valve body deformation caused by uneven installation force; 2. Solenoid coil burnout caused by overload current | 1. Use a torque wrench to tighten mounting bolts uniformly, avoid over-tightening; 2. Install a current fuse in the control circuit, matching the rated current of the solenoid coil |
11 | 4WE6J6X/EG24N9K4 | 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 damage caused by moisture intrusion; 2. Valve core wear caused by long-term use | 1. Seal the valve's electrical interface with silicone sealant, avoid moisture entering; 2. Calibrate the valve every 800 operating hours, replace the valve core if wear exceeds 0.03mm |
12 | 4WE6J7X/HG24N9K4 R901089241 | Valve body: 35CrMo alloy steel; Valve core: 42CrMo alloy steel (nitriding treatment); Spring: 60Si2Mn alloy steel; Seal: Fluororubber (FKM); Solenoid coil: Copper wire with heat-resistant encapsulation | 1. Seal leakage caused by pressure impact; 2. Valve core jamming caused by hydraulic oil sludge accumulation | 1. Install a pressure buffer upstream to reduce pressure impact; 2. Flush the hydraulic system every 1000 operating hours, replace hydraulic oil if sludge is found |
Pressure Control Valves
Pressure Control Valves are critical safety and regulation components in hydraulic systems, responsible for stabilizing system pressure, preventing overpressure damage, and regulating pressure levels for different working conditions. Malfunction of these valves can lead to system pressure instability, component fatigue failure, or even catastrophic system explosion. Our pressure control valves adopt precision pressure-adjusting mechanisms and high-strength materials, ensuring accurate pressure control (error ≤±2%), reliable overpressure protection, and full compliance with ISO 4401 standards.
Serial No. | Product Model (Including Part No.) | Material | Main Wear Reasons | Damage Prevention Notes |
1 | DR10DP24X/150YM | Valve body: 45# steel (quenched and tempered); Spool: 42CrMo alloy steel (nitriding treatment); Spring: 60Si2Mn alloy steel; Seal: Fluororubber (FKM); Adjusting screw: 40Cr alloy steel with lock nut | 1. Spool wear caused by high-pressure oil flow erosion; 2. Adjusting screw loosening caused by long-term vibration | 1. Install the valve in a position with low flow turbulence, ensure correct flow direction; 2. Lock the adjusting screw with a lock nut after setting pressure, re-check torque monthly |
2 | DR6DP25X/75YM | Valve body: 35CrMo alloy steel; Spool: 20CrMnTi alloy steel (carburizing and quenching); Spring: 55CrSi alloy steel; Seal: Nitrile rubber (NBR); Adjusting screw: 40Cr alloy steel | 1. Spool jamming caused by hydraulic oil contamination; 2. Spring fatigue caused by long-term compression | 1. Replace hydraulic oil filter every 300 operating hours, ensure oil cleanliness meets ISO 4406 Class 13/10; 2. Inspect spring elasticity every 600 operating hours, replace if deformation is found |
3 | DBDS10K1X/200 | Valve body: 45# steel (quenched and tempered); Valve disc: 20CrMnTi alloy steel (carburizing and quenching); Spring: 55CrSi alloy steel; Seal: Fluororubber (FKM); Seat: Hard alloy (WC-Co) | 1. Valve disc wear caused by frequent overpressure relief; 2. Seal leakage caused by high-temperature oil (oil temperature >85°C) | 1. Optimize system pressure setting to avoid frequent overpressure operation; 2. Install an oil cooler to control oil temperature ≤80°C |
4 | DRE61X/100MG24K4/M R900932943 | Valve body: 35CrMo alloy steel; Spool: 42CrMo alloy steel (nitriding treatment); Spring: 60Si2Mn alloy steel; Seal: Fluororubber (FKM); Solenoid coil: Copper wire with epoxy resin encapsulation | 1. Internal leakage caused by spool wear; 2. Solenoid coil failure caused by voltage fluctuations | 1. Calibrate the valve every 800 operating hours, replace spool if leakage exceeds 5ml/min; 2. Install a voltage stabilizer in the control circuit |
5 | R900021267 (Z31) | Valve body: 304 stainless steel; Spool: 1.4021 alloy steel (hard chrome plating); Spring: 55CrSi alloy steel; Seal: Fluororubber (FKM); Adjusting knob: Aluminum alloy | 1. Valve body corrosion caused by corrosive media in the hydraulic system; 2. Spool jamming caused by foreign object intrusion | 1. Use corrosion-resistant hydraulic oil, inspect valve body for corrosion monthly; 2. Install a filter at the valve inlet to prevent foreign objects from entering |
6 | ZDR10DP25X/150YM | Valve body: 45# steel (quenched and tempered); Spool: 42CrMo alloy steel (nitriding treatment); Spring: 60Si2Mn alloy steel; Seal: Fluororubber (FKM); Adjusting screw: 40Cr alloy steel | 1. Spool jamming caused by rust in the hydraulic system; 2. Adjusting screw wear caused by frequent adjustment | 1. Add an anti-rust additive to the hydraulic oil, drain and replace oil annually; 2. Avoid frequent pressure adjustments, mark the optimal pressure setting position |
7 | ZDR6DP24X/150YM | Valve body: 35CrMo alloy steel; Spool: 20CrMnTi alloy steel (carburizing and quenching); Spring: 55CrSi alloy steel; Seal: Nitrile rubber (NBR); Adjusting screw: 40Cr alloy steel | 1. Seal aging caused by chemical degradation; 2. Spring breakage caused by over-adjustment of pressure | 1. Use hydraulic oil compatible with NBR seals (per ASTM D471); 2. Do not adjust pressure beyond the rated range of the valve (marked on the nameplate) |
8 | MSR15KE051X/ | Valve body: 304 stainless steel; Spool: 1.4021 alloy steel (hard chrome plating); Spring: 55CrSi alloy steel; Seal: Fluororubber (FKM); Adjusting knob: Plastic-reinforced nylon | 1. Spool wear caused by high-velocity oil flow; 2. Adjusting knob loosening caused by accidental collision | 1. Ensure the valve is installed in the correct flow direction to reduce flow velocity impact; 2. Install a protective cover around the adjusting knob to prevent accidental collision |
Flow Control Valves & Variable Displacement Control Valves
Flow Control Valves and Variable Displacement Control Valves are responsible for regulating the flow rate of hydraulic oil, ensuring stable and accurate movement of hydraulic actuators, and adjusting pump displacement to match load demand. Malfunction of these components can lead to inconsistent actuator speed, reduced operational precision, or system energy waste. Our flow control valves adopt precision flow-regulating orifices and reliable structural design, ensuring accurate flow control (error ≤±3%) and long-term stable operation.
Serial No. | Product Model (Including Part No.) | Material | Main Wear Reasons | Damage Prevention Notes |
1 | SL10PA14X/V | Valve body: 35CrMo alloy steel; Spool: 42CrMo alloy steel (nitriding treatment); Spring: 55CrSi alloy steel; Seal: Fluororubber (FKM); Adjusting screw: 40Cr alloy steel | 1. Spool wear caused by high-velocity oil flow erosion; 2. Adjusting screw loosening caused by vibration | 1. Install the valve in a low-flow velocity area; 2. Lock the adjusting screw with a lock nut, check torque quarterly |
2 | Z2FS624X/2QV R900481624 | Valve body: 45# steel (quenched and tempered); Spool: 20CrMnTi alloy steel (carburizing and quenching); Spring: 55CrSi alloy steel; Seal: Fluororubber (FKM); Seat: Bronze | 1. Valve seat wear caused by frequent flow regulation; 2. Seal leakage caused by high-pressure cycling | 1. Avoid frequent and rapid flow adjustments; 2. Inspect seals quarterly, replace with new ones if necessary |
3 | Z2FS1053X/V R900517812 | Valve body: 35CrMo alloy steel; Spool: 42CrMo alloy steel (nitriding treatment); Spring: 60Si2Mn alloy steel; Seal: Fluororubber (FKM); Seat: Hard alloy | 1. Spool jamming caused by hydraulic oil contamination; 2. Valve body deformation caused by uneven installation force | 1. Replace hydraulic oil filter every 300 operating hours, ensure oil cleanliness meets ISO 4406 Class 13/10; 2. Use a torque wrench to tighten mounting bolts uniformly |
4 | 2FRE6B2X/16QK4RV R900949741 | Valve body: 304 stainless steel; Spool: 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. Spool wear caused by long-term use | 1. Install the valve in a moisture-proof control cabinet, seal cable entries; 2. Calibrate the valve every 800 operating hours, replace spool if wear exceeds 0.03mm |
5 | R900907440 4WREE6V16-2X/G24K31/A1V | Valve body: 35CrMo alloy steel; Spool: 42CrMo alloy steel (nitriding treatment); Spring: 60Si2Mn alloy steel; Seal: Fluororubber (FKM); Solenoid coil: Copper wire with heat-resistant encapsulation | 1. Internal leakage caused by valve seat wear; 2. Solenoid coil overheating caused by high ambient temperature | 1. Replace the valve seat every 1200 operating hours; 2. Install a cooling fan in the control cabinet if ambient temperature exceeds 50°C |
6 | 4WRKE16W6200L3X/6EG24ETK31/A1D3M | Valve body: 45# steel (quenched and tempered); Spool: 20CrMnTi alloy steel (carburizing and quenching); Spring: 55CrSi alloy steel; Seal: Fluororubber (FKM); Solenoid coil: Copper wire with epoxy resin encapsulation (double coil design) | 1. Spool jamming caused by hydraulic oil sludge accumulation; 2. Solenoid coil damage caused by voltage spikes | 1. Flush the hydraulic system every 1000 operating hours, replace hydraulic oil if sludge is found; 2. Install a surge protector in the control circuit |
7 | PVV1-1X036RA15DMB | Valve body: 35CrMo alloy steel; Spool: 42CrMo alloy steel (nitriding treatment); Spring: 60Si2Mn alloy steel; Seal: Fluororubber (FKM); Adjusting knob: Aluminum alloy | 1. Spool wear caused by high-velocity oil flow; 2. Adjusting knob loosening caused by accidental collision | 1. Ensure the valve is installed in the correct flow direction; 2. Install a protective cover around the adjusting knob |
8 | PVV4-1X/069RA15DMC | Valve body: 45# steel (quenched and tempered); Spool: 20CrMnTi alloy steel (carburizing and quenching); Spring: 55CrSi alloy steel; Seal: Fluororubber (FKM); Adjusting screw: 40Cr alloy steel | 1. Seal leakage caused by high-pressure operation; 2. Spool jamming caused by rust in the hydraulic system | 1. Inspect seals quarterly, replace with new ones if signs of aging appear; 2. Add an anti-rust additive to the hydraulic oil |
9 | PVQ2-1X/045RA15UVB | Valve body: 304 stainless steel; Spool: 1.4021 alloy steel (hard chrome plating); Spring: 55CrSi alloy steel; Seal: Fluororubber (FKM); Adjusting knob: Plastic-reinforced nylon | 1. Valve body corrosion caused by outdoor exposure; 2. Spool wear caused by frequent adjustment | 1. Install the valve in a waterproof control cabinet for outdoor applications; 2. Apply molybdenum disulfide lubricating grease to the spool mechanism every 200 operating hours |
10 | Z2S6-1-6X | Valve body: 35CrMo alloy steel; Spool: 42CrMo alloy steel (nitriding treatment); Spring: 55CrSi alloy steel; Seal: Nitrile rubber (NBR); Seat: Bronze | 1. Seal aging caused by incompatible hydraulic oil additives; 2. Spool jamming caused by foreign object intrusion | 1. Use hydraulic oil compatible with NBR seals (per ASTM D471); 2. Clean the valve and surrounding area before maintenance |
11 | Z2S1013X R900407394 | Valve body: 304 stainless steel; Spool: 1.4021 alloy steel (hard chrome plating); Spring: 55CrSi alloy steel; Seal: Nitrile rubber (NBR); Seat: Bronze | 1. Seal leakage caused by pressure cycling; 2. Valve body corrosion caused by moisture in hydraulic oil | 1. Inspect seals quarterly, replace with new ones if necessary; 2. Check hydraulic oil for water content monthly, add a water separator if needed |
12 | 0811404207 4WRL16V200M-3X/G24Z4/M | Valve body: 45# steel (quenched and tempered); Spool: 20CrMnTi alloy steel (carburizing and quenching); Spring: 60Si2Mn alloy steel; Seal: Fluororubber (FKM); Solenoid coil: Copper wire with epoxy resin encapsulation (feedback control design) | 1. Spool wear caused by high-velocity oil flow; 2. Solenoid coil failure caused by feedback signal interference | 1. Install the valve in a low-flow velocity area; 2. Route feedback signal lines separately from power cables to avoid interference |
Procurement & Technical Support Guidelines
Selecting high-quality, compatible hydraulic components is critical to ensuring the safe, efficient, and stable operation of industrial hydraulic systems, reducing maintenance costs and avoiding unplanned downtime. Our hydraulic components fully comply with ISO 4401, ISO 10391, ISO 13709, and DIN 24342 standards, with complete material traceability reports, pressure test certificates, and leak tightness inspection reports. We provide professional technical support, including component selection based on system pressure, flow, application scenario, and equipment model, on-site installation and calibration guidance, and post-sales maintenance consultation. Whether you need single-component replacements, bulk inventory preparation, or customized hydraulic component solutions for special industrial applications (such as high-temperature, high-corrosion, or high-vibration environments), our team is dedicated to delivering reliable products and tailored services. Contact us today to discuss your hydraulic component requirements and get optimized procurement and application solutions.
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