| Hydraulic Filter 937399Q 937407Q SH51500 HF40024 Parameter: | |
| Part Number | 937399Q 937407Q SH51500 HF40024 |
| Brand | Tamfiney |
| Weight | 1460 g |
| Height | 544/592 mm |
| Outer Diameter | 94.5/119 mm |
| Inner Diameter | 58 mm |
| Material | Plastic + Glass fiber |
| Filter Media | Glass fiber with Strainless steel blend |
| Typical Working Pressure | Up to approx. 6–10 bar |
| Filtration | Approx. 5–10 micron |
| Temperature Rating | Up to approx. 100–120°C |
| Minimum Order | 30 PCS |
| Place of Region: | Zhejiang, China |
| Payment Terms: | T/T |
| Price Terms: | FOB |
| Lead Time: | 30 to 50 days based on order quantities |
| Market Type: | After Market |
| Current Export Market: | Southeast Asian,North America, South America, Western Europe, Eastern Europe, Africa, Oceania |
Applications:
- Industrial Hydraulic Systems: Hydraulic power units, manufacturing presses, injection molding machinery, and factory automation systems.
- Mobile & Construction Machinery: Heavy-duty equipment, including excavators, loaders, and earth-moving machinery.
- Agricultural Equipment: Tractors, harvesters, and specialized farming machinery requiring robust fluid filtration
Professional 937399Q Low Pressure Filter 937407Q SH51500 HF40024
Q: What is the purpose of a pressure filter?
The purpose of pressure filters in hydraulic systems is to protect the hydraulic components downstream of the pump by filtering out solid impurities and gel like pollutants in the oil, preventing component wear, jamming, or blockage.
It is mainly installed on pressure pipelines to remove impurities caused by external invasion and chemical changes in the oil, thereby ensuring the system's requirements for oil cleanliness. Specifically:
🛡️ Protection object and function
- Protect sensitive components: prevent premature wear or jamming of high-precision control components (such as servo valves, solenoid valves) and actuating components due to contamination.
- Preventing blockage: Avoid valve core jamming, throttling small holes, gaps, and damping holes from being blocked by impurities.
- Maintain cleanliness: Control oil particle contamination, maintain the required cleanliness level of the system, and ensure system performance and reliability.
📋 Key features
- Installation position: In the pressure oil circuit, as the main filter of the system, it is usually installed at the outlet of the pump or upstream of the sensitive component.
- Filtering accuracy: Pressure pipeline filters can use higher accuracy, such as PLF series filtration ratio β ≥ 200 and filtration efficiency η ≥ 99.5%.
- Protection mechanism: Generally equipped with bypass valves and differential pressure signaling devices. When the filter element is clogged to the set pressure difference, a message will be sent to prompt replacement; If the pressure difference is too large, the bypass valve will automatically open to ensure that the system continues to operate.
- Customized filtration effect according to needs: Depending on the different filter media filled inside, the purpose also has emphasis.
Simply put, it is like a "security guard" that blocks out unwanted particles, making downstream equipment safer and water cleaner. If finer solid-liquid separation is required, it belongs to the "pressure filtration" process, using equipment such as filter presses, which is another matter.
Q: What are the different types of pressure filters?
Classification by pressure level
Suitable for industrial pipeline systems with varying working pressures, primarily determined by the pressure range of the pipeline system.
- Low pressure filter: Maximum operating pressure of approximately 60 bar, suitable for systems with low operating pressure, such as the Filtration PI 270 series.
- Medium pressure filter: Up to 210 bar, suitable for most conventional hydraulic systems, such as the PI 3000 series.
- High pressure filter: up to 450 bar, used in high-pressure hydraulic systems for heavy machinery, metallurgy, etc., such as the PI 4000 series.
- Special High Pressure Filter: Some models can withstand up to 1000 bar of pressure, suitable for extreme operating conditions.







