KNOTH filter Germany KNOTH model KNOTH price

KNOTH filters are indispensable devices on media transport pipelines, typically installed at the inlets of pressure reducing valves, relief valves, constant water level valves, and other equipment. The filter consists of a housing, stainless steel filter mesh, blowdown section, drive mechanism, and electrical control components. Water to be treated passes through the filter cartridge with the mesh, where impurities are retained. When cleaning is required, simply remove the detachable filter cartridge, clean it, and reinstall it, making operation and maintenance extremely convenient. It is the "decision-making unit" that issues commands, i.e., it performs coordination and control of the entire computer system. Controllers are divided into combinational logic controllers and microprogrammed controllers, each with its own advantages and disadvantages. Combinational logic controllers are troublesome to design and have complex structures; once designed, they cannot be modified or expanded, but they offer high speed. Microprogrammed controllers are easy to design, have simple structures, and are easy to modify or expand. To modify the function of a machine instruction, only the corresponding microprogram needs to be rewritten; to add a machine instruction, only a segment of microprogram needs to be added to the control memory. However, it operates by executing a segment of microcode. A specific comparison is as follows: Combinational logic controllers, also known as hardwired controllers, are composed of logic circuits and rely entirely on hardware to implement instruction functions.

KNOTH filter principle

Water to be filtered enters through the inlet, flows through the filter mesh, and exits into the user's required pipeline for process circulation. Particulate impurities in the water are trapped inside the filter mesh. As this cycle continues, more particles are trapped, slowing the filtration rate, while untreated water continues to enter. The filter pores become smaller, creating a pressure difference between the inlet and outlet. When the differential pressure reaches the set value, the differential pressure transmitter sends an electrical signal to the controller. The control system starts the drive motor, which rotates the shaft via the transmission assembly. Simultaneously, the blowdown port opens to discharge contaminants. After the filter mesh is cleaned, the pressure drop decreases to the minimum value, the system returns to the initial filtration state, and operates normally. It operates in two modes: patrol mode and identification mode. In patrol mode, the controller continuously sends query codes to the card reader and receives responses. This mode persists until the card reader detects a card. When a card is detected, the card reader sends a different response to the controller's patrol command. In this response, the card reader transmits the read card ID data to the access controller, causing the access controller to enter identification mode. In identification mode, the access controller analyzes the card ID, compares it with card data stored in the device, and executes subsequent actions. After completing the data reception, the access controller sends a response command to the card reader to restore its status, and the access controller returns to patrol mode.

KNOTH filter filtration speed

When solid particles in a suspension are large and uniform in grain size, the pores in the filter cake layer are relatively open, allowing the filtrate to pass through the cake layer at a higher velocity. Applying coagulants to aggregate fine particles into larger clumps helps increase filtration speed. For suspensions where solid particles settle quickly, filters that feed onto the upper part of the filter medium are used, aligning the filtration direction with gravity. Coarse particles settle first, reducing clogging of the filter medium and filter cake layer. In difficult-to-filter suspensions (such as colloids), mixing in coarser solid particles like diatomaceous earth or expanded perlite can loosen the filter cake layer. When the filtrate viscosity is high, heating the suspension can reduce viscosity. These measures all accelerate filtration speed.

KNOTH filter performance features

1. High efficiency, precise filtration: Special structure disc filter technology offers precise and sensitive performance, ensuring that only particles smaller than the required size enter the system, making it the most effective filtration system. Specifications include 5μ, 10μ, 20μ, 55μ, 100μ, 130μ, 200μ, and others. Users can select filter discs of different precisions according to water usage requirements. System flow rate can be flexibly adjusted as needed. 2. Standard modular design, space-saving: The system is based on standard disc filter units with a modular design. Users can select units as needed, offering flexibility and strong interchangeability. The system is compact and occupies minimal space, allowing flexible installation in corner spaces. For example, equipment handling a water volume of approximately 300m3/h occupies only about 6m2 (for general water quality, filtration grade 104μ).

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