Is your dust collector underperforming? Are you facing unexpected filter bag failures or struggling with high energy costs? Do you know what media to choose and when to replace your filter bags? Aokai Environtec’s Filter Bag Testing & Analysis Service provides the scientific data you need to maximize the life and efficiency of your filtration system.
Key service objectives include:
By conducting thorough filter bag testing and analysis, you can gain valuable insights into your filtration system’s condition and ensure peak performance. It helps save time and resources while reducing the risk of environmental non-compliance. A systematic approach deepens your understanding of the ideal match between filter bag materials and filtration applications, empowering you to implement more effective and long-lasting solutions.
This procedure involves:
We provide comprehensive, laboratory-based analysis to determine the precise condition and cause of failure for your filter media. Our standard testing protocols adhere to international standards.
Our laboratory is equipped with state-of-the-art apparatus. For clients requiring the highest level of predictive certainty and performance guarantee, we offer specialized testing:
The test data is reviewed and interpreted by a team of skilled filtration engineers. Based on the collected evidence and analysis findings, a report is compiled outlining identified failures, test data, analytical results & root causes, and recommendations for corrective actions and preventive measures.
At Aokai Environtec, we are equipped with the most advanced testing equipment:
Permeability Test measures the volumetric flow rate, measured in cubic feet per minute (cfm), through a square foot of filter media at a differential pressure of 0.5” water gauge (w.g.).
The measurement is performed on the filter in the “as-received” condition and after various cleaning steps, such as lightly snapping and brushing the filtration surface to simulate a cleaning cycle. The backside (clean side) of the filter media is vacuumed as the final step. An increase in the permeability indicates dust contamination.
Mullen Burst Strength Test is a measure of the two-dimensional, or planar, strength of the media, measured in pounds per square inch. The sample is securely clamped over a rubber diaphragm. The diaphragm is steadily pressurized with fluid until it expands to the point where it breaks through the media. The corresponding pressure of the fluid within the diaphragm at the point when the media ruptures is recorded as the strength. The effects on the filter media from mechanical, chemical, or thermal stress are determined.
Mullen Burst Strength Test is a measure of the two-dimensional, or planar, strength of the media, measured in pounds per square inch. The sample is securely clamped over a rubber diaphragm. The diaphragm is steadily pressurized with fluid until it expands to the point where it breaks through the media. The corresponding pressure of the fluid within the diaphragm at the point when the media ruptures is recorded as the strength. The effects on the filter media from mechanical, chemical, or thermal stress are determined.
Tensile Strength Test is a measure of the directional strength of the media, measured in pounds per square inch. The sample is secured in the testing machine and is pulled apart to the point of failure. A resultant load-displacement curve is developed which is then compared to new material for residual property characteristics.
Visual analysis of a filter sample is aided by the use of a light microscope. In addition to observing the failure site, determining the particulate interaction with the filter media surface is often critical in solving filter media performance issues. Scanning Electron Microscopy (SEM) is also very helpful when investigating particulate and filter fiber surface morphology. Evidence of abrasion, chemical, and thermal effects is often enhanced during Microscopic Analysis.
