Filter Quality Identification

filter is an indispensable device on the transmission medium pipeline. It is usually installed at the inlet end of pressure reducing valves, pressure relief valves, fixed water level valves, square filters and other equipment. After the filter has a filter cartridge with a certain size of filter screen, the impurities are blocked. When cleaning is needed, just take out the detachable filter cartridge and reinstall it after processing. Therefore, it is extremely convenient to use and maintain.
In filter quality appraisal cases, Zhongke Testing can provide filter quality appraisal services.

1, classified according to performance: pipeline filters, double-cylinder filters and high-pressure filters.
2, according to industry classification: hydraulic oil filter, food filter, medical filter.
3, according to the functional classification, there are self-cleaning, fully automatic and brush type.
4, classified according to media: air filter, liquid filter, network filter, light filter.
5, classified according to function: oil suction filter, high-pressure pipeline filter (A), high-pressure pipeline filter (B), return filter, circulation filter, air filter.

GB/T 36051-2018 Gas filter
GB/T 14295-2019 Air filter
GB/T 13554-2020 High efficiency air filter
GB/T 35250-2017 Intermetallic compound membrane filter
GB/T 23135-2008 Refrigerator molecular sieve filter
GB/T 20079-2006 Hydraulic filter technical conditions
GB/T 41681-2022 Y-shaped cast iron filter for pipelines
GB/T 17939-2015 Nuclear grade high-efficiency air filter
GB/T 14382-2008 Three-pass filter for pipeline

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X, Chen purchased a set of "3M pre-recoil filter and 3M water purifier" from a certain company. Later, due to damage to the water purifier, faucets, showerheads, etc. in the house involved in the case, water leaked, causing damage to the floor and other items in Chen's home. Since the negotiation for compensation for losses failed, Chen sued the court and requested compensation for various losses.
was entrusted by the applicant to conduct an appraisal and analysis on "whether there are quality problems" with the filter involved.
identification and analysis results: The
identification and analysis expert group discussed the relevant information and on-site investigation of the filter involved and conducted a comprehensive quality and technical analysis, and made the following suggestions and conclusions:
The burst 3M pre-backwash filter and 3M water purifier meet product requirements and quality requirements. The reason why
leaks is because the temperature is too low and the water inside the water purifier turns into ice. Due to the increase in volume, pressure is exerted on the water purifier shell, causing the water purifier shell to rupture.