Raw Materials:
Filter Material: Commonly used filter materials include glass fiber, stainless steel mesh, copper mesh, etc. These materials exhibit excellent filtering performance and corrosion resistance, effectively removing impurities and particles from the oil.
Housing Material: The housing of the filter is typically made of cast iron, stainless steel, or aluminum alloy to ensure structural strength and corrosion resistance.
Sealing Material: To maintain the filter's sealing performance, rubber, silicone, or other sealing materials are often employed.
Technical Parameters:
| Technical Parameter | Description/Range |
|---|---|
| Filtration Accuracy | Typically ranging from 1-30μm, depending on the model and application. Higher filtration accuracy results in better filtering but also increases filtering resistance. |
| Nominal Flow Rate | Indicates the maximum flow rate allowed by the filter under rated working pressure, usually measured in L/min. The specific value varies according to the filter model and specification, ranging from tens of L/min to thousands of L/min. |
| Nominal Pressure | Denotes the maximum pressure the filter can withstand under normal operating conditions, typically measured in MPa. Direct return oil filters generally have a nominal pressure of around 1.6MPa. |
| Operating Temperature | Specifies the temperature range within which the filter can operate normally. Since the typical operating temperature of hydraulic oil ranges from -30°C to 110°C, the filter's design must also meet this requirement. |
| Connection Type | Common connection types include threaded connections and flange connections. The specific type of connection depends on the filter's installation location and system requirements. |
| Filter Medium | Direct return oil filters are primarily used to filter oil in hydraulic systems, including general hydraulic oil, phosphate ester hydraulic oil, emulsions, etc. |
| Additional Functions | Some direct return oil filters are equipped with accessories such as transmitters and bypass valves to enable automatic alarm and online cleaning functions. |
It is important to note that the above technical parameters are general ranges, and specific values need to be determined based on the model and brand of the direct return oil filter. When selecting and using these filters, it is crucial to carefully consult product manuals and relevant technical information to ensure they meet the system's requirements.
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