Quality Control

Quality is the most important brand commitment of LIVIC to our customers. The reliability and safety of LIVIC filtration systems determine the final product purity, the down-stream key equipment safety and stable efficiency of our client process systems. With the consistent investment on the quality management, delivering the attractive and premium quality filtration products is the mission we are proud of.

LIVIC implements ISO9001-2015 quality management system and the ASME/GB150 Pressure Vessel Code involving design, fabrication and inspection standards. Produce filtration equipment and elements according to the standardized processes. Quality is the cornerstone of LIVIC sustainable growth and gaining the global market reputation. This dedication to the strict control and consistent improvement of quality is LIVIC’s core focus. Our quality management system includes supplier management, raw material control, manufacture process control, final product inspection and continuous product innovation & improvement.

Control Instrument
Supplied Raw Materials Management
Critical management of suppliers: As an important part of quality control ,we choose every component critically from the beginning.
Positive Material Identification: Check all the indefinite materials by the specialized instruments from Germany 
Dimension check: According to the drawings and specifications, check all the dimensions of the components  
Strict management of material storing: The warehouse is divided into Qualified Product Area, Unqualified Product Area and Uninspected Product Area. Distinguish strictly the acceptable materials from the others, and correctly handle the defective raw materials. Only the qualified materials could be transferred to the next process.

Process Quality Control
Radiographic testing： a nondestructive testing (NDT) method of inspecting materials for hidden flaws by using the ability of short wavelength electromagnetic (high energy photos) to penetrate various materials
Penetrant Testing:Find out the surface flaws as much as possible with the Capillary Phenomenon help  
Filter Element Precision Detection:Inspect the micron range to make sure it is fine enough to strain out impurities.  
Magnetic Flux Density Detection: The magnetic flux density must meet the demand of designing so as to achieve a perfect effect

Final Inspection
Surface Roughness Detection： Detecting the micro-height of the inner or outer surface to make sure the surface roughness is fine enough to satisfy the requirements from some special industries, such as food , pharmaceutical, and cosmetic fields
Ultrasonic Thickness Measurement: Make sure the final thickness satisfies the requirement of design minimum thickness
Hydrostatic Test: Design strength verification
Functional Test: Guarantee the function to satisfy the requests from clients

Technological Level
Precise control of opening dimension by using Wire Electrical Discharge Machining
Precise assembly operation
One side welding, no back gouging, full-penetration butt weld
Control the deformations in a sound and effective way