| Hydraulic Filter 84248043 47135287 HC1905 HC-1905 BT8382 Parameter: | |
| Part Number | 84248043 47135287 HC1905 HC-1905 BT8382 |
| Brand | Tamfiney |
| Weight | 2220g |
| Height | 248 mm |
| Outer Diameter | 135 mm |
| Inner Diameter/ Thread Size | 1 3/4-16 |
| Material | Metal & Glass fiber |
| Filter Media | Glass fiber with Strainless steel blend |
| Casing | Painted steel outer body with perforated steel internal support |
| Typical Working Pressure | Up to approx. 6–10 bar |
| Filtration | Approx. 5–10 micron |
| Temperature Rating | Up to approx. 100–120°C |
| Minimum Order | 100 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:
- Case: Farmall (105U, 115U, 95U) and Maxxum / MXU series
- Ford Agri & New Holland: Series models including 5640, 6640, 7740, 7840, 8160, 8240, 8340, TM series, and T6000/T6 series tractors.
Professional Case 84248043 47135287 Hydraulic Filter HC1905 HC-1905 BT8382
Q: What are the symptoms of a bad or clogged hydraulic filter?
When the hydraulic filter is clogged or damaged, the most typical symptoms are insufficient system pressure, slow and weak movement, accompanied by increased oil temperature and abnormal noise. In severe cases, it can cause overload of the hydraulic pump, abnormal wear of components, and even paralysis of the entire system.
🔍 Comparison of common symptoms
- Abnormal pressure: The pointer of the pressure gauge jumps or cannot go up, and the system pressure is insufficient. The actuator moves slowly, weakly, or does not move
- The action is delayed, and lifting the bucket feels like tying a sandbag. It takes half a day to retract the support legs, resulting in a significant decrease in work efficiency
- Abnormal sound heard, such as humming, metal tapping, or high-frequency abnormal noise. The oil pump may be sucking in air or worn out
- The system heats up, the hydraulic oil tank is hot to the touch, the oil temperature is abnormally high and burns out the sealing ring, accelerating the oxidation of the oil
- Oil contamination Oil deterioration, bubbles or foam valve element stuck, blocked oil passage
- The unfiltered dirty oil with damaged filter element directly enters the system and causes wear on precision components such as acceleration pump and valve
⚠️ Special attention should be paid to the associated risks
- Bypass valve open: If the filter element is clogged, the bypass valve will secretly open, and dirty oil will directly enter the system, which is equivalent to unfiltered.
- Cavitation and crawling: When severely blocked, oil absorption forms a local vacuum, and air in the oil is released, leading to the phenomenon of "crawling" when the actuator stops moving.
- Engine shutdown: blockage of the return oil filter may cause the engine to suddenly shut down; If dirt gets stuck in the valve core, it may cause the entire system to malfunction.
- Differential pressure transmitter alarm: Many devices are equipped with differential pressure transmitters. When the filter element is clogged to the set value, it will emit a photoelectric alarm or the window will turn red, which is the most direct reminder signal.
Q: What is a Micron and Beta rating on a hydraulic filter?
The micrometer (μm) represents the particle size that the filter can intercept, and the beta rating (β value) represents the filtration efficiency at the corresponding particle size. Only by combining the two can the filter performance be fully described.
📏 Micron: filtration accuracy
Micron refers to the minimum particle diameter that the filter element can effectively intercept, with common nominal values including 3 μ m, 5 μ m, 10 μ m, 20 μ m, etc. The smaller the number, the finer the intercepted particles. For example, "10 microns" means that solid particles larger than or equal to this size can be reliably captured.
Two concepts need to be distinguished:
- Nominal accuracy: a statistical value indicating the ability to filter out at least 90% of particles of a specified size.
- Absolute accuracy: the smallest particle size that can intercept 100%, more stringent.
🔢 Beta rating: filter ratio (beta value)
The beta value is a quantitative indicator of filtration efficiency, which refers to the ratio of the number of particles larger than a certain particle size in the upstream oil of the filter element to the number of particles of that particle size in the downstream oil.
Formula: β x=number of particles larger than x μ m upstream ÷ number of particles larger than x μ m downstream
For example, when β ₁₀=100, it means that the filtration efficiency for 10 μ m particles is 99%. The higher the beta value, the better the filtering effect. If β 3 ≥ 200, the removal rate of 3 μ m particles shall not be less than 99.5%.
