Buehler filter Germany Buehler model Buehler price

Buehler filters are typically installed on the pipeline at the inlet of pumps and compressors or before flow meters. Weakly corrosive media in petrochemical production, such as water, ammonia, oil products, hydrocarbons, etc. Corrosive media in chemical production, such as caustic soda, soda ash, dilute sulfuric acid, carbonic acid, acetic acid, etc. Low-temperature media in refrigeration, such as liquid methane, liquid ammonia, liquid oxygen, and various refrigerants. Media with hygiene requirements in light industry food and pharmaceutical production, such as beer, beverages, dairy products, pharmaceutical supplies, etc. Such as filtration of industrial wastewater and circulating water, regeneration of emulsions, waste oil filtration treatment, continuous casting water systems and blast furnace water systems in the metallurgical industry, and high-pressure water descaling systems for hot rolling. It is an advanced, efficient, and easy-to-operate fully automatic filtration device.

Buehler filter function

The water to be treated enters the body through the inlet, and impurities in the water deposit on the stainless steel filter screen, thereby generating a pressure difference. The pressure difference switch monitors the change in pressure difference between the inlet and outlet. When the pressure difference reaches the set value, the electronic controller sends signals to the hydraulic control valve and the drive motor. After equipment installation, technicians perform debugging to set the filtration time and cleaning cycle time. The water to be treated enters the body through the inlet, and the filter begins normal operation. When the preset cleaning time is reached, the electronic controller sends signals to the hydraulic control valve and the drive motor, triggering the following actions: the motor drives the brush to rotate to clean the filter element, while the control valve opens to discharge sewage. The entire cleaning process takes only tens of seconds. When cleaning is complete, the control valve closes, the motor stops rotating, and the system returns to its initial state to begin the next filtration cycle. The interior of the filter housing mainly consists of a coarse filter screen, fine filter screen, suction pipe, stainless steel brush or stainless steel suction nozzle, sealing rings, anti-corrosion coating, rotating shaft, etc.

Buehler filter selection requirements

Inlet and outlet bore: In principle, the inlet and outlet bore of the filter should not be smaller than the inlet bore of the matched pump, and is generally consistent with the inlet pipe diameter. Nominal pressure: Determine the pressure rating of the filter based on the maximum pressure that may occur in the filtration pipeline. Selection of mesh count: Primarily consider the particle size of impurities to be intercepted, determined according to the medium flow process requirements. Refer to the table "Filter Mesh Specifications" below for the particle sizes that can be intercepted by various specifications of wire mesh. Filter material: The filter material is generally selected to be the same as the material of the connected process pipeline. For different service conditions, filters made of cast iron, carbon steel, low-alloy steel, or stainless steel may be considered. Calculation of filter resistance loss: For water filters, at the generally calculated rated flow rate, the pressure loss is 0.52～1.3kpa Conversion

Buehler filter precautions

The core component is the filter element assembly, which consists of a filter frame and stainless steel wire mesh. The stainless steel wire mesh is a consumable part and requires special protection. After the filter has been in operation for a period of time, certain impurities precipitate inside the filter element, causing an increase in pressure drop and a decrease in flow rate. Impurities inside the filter element must be removed promptly. When cleaning impurities, pay special attention to ensure that the stainless steel wire mesh on the filter element is not deformed or damaged. Otherwise, the purity of the medium after filtration by the reinstalled filter will not meet design requirements, and equipment such as compressors, pumps, and instruments may be damaged. The purity of the filtered medium does not meet design requirements. Certain precision filter elements cannot be reused multiple times, such as bag filter elements and polypropylene filter elements. If deformation or damage to the filter element is found, it must be replaced immediately. Pay attention to rust prevention; paint or grease should be applied at the flange connections, and insulation should be provided.

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