This brief guide provides information for some of the most popular modes for failures. There are many reasons for O-ring failures. We have developed innovative elastomer materials in O Ring supplier for decades to withstand the most challenging screening environments. Please read this blog if you want further help, this will help you diagnose the problem and suggest solutions.
Abrasion:
If the O-ring has a grassy surface of the sliding contact faces, and deeper laceration and splitting can occur with excessive wear. This occurs commonly when repeated contact between the O-ring and the housing results in excessive friction between the two in dynamic applications. Missing lubrication or metal surface finishing may exacerbate the risk of abrasive contaminants entering the sealing system. The O Rings and seals suppliers can offer a range of O Ring scale materials with enhanced abrasion resistance, which ensures correct lubrication in the scale system. By using wiper or scraper rings, contaminant inputs can be reduced.
Chemical attack:
According to Oil Seal suppliers, If O-ring is displaying a range of signs, such as blisters, cracks, hardness changes or discoloration, depending on the chemical media being screened. Some chemicals react to some elastomers. This leads most often to an increase in cross-connect density leading to a hard and fragile material, which has a reduced reaction force. Chain breakdown, which also reduces strength, is possible. O Ring supplier suggests that Crosslink density can occasionally be reduced, leading to a softer tacky material leading to a loss of its original form and integrity.
Chemical Swell:
If O-ring appears larger than its initial dimensions. This can be consistent across the entire screen or locally exposed areas of chemical exposure. Swell is caused by the introduction of media into the elastomer because the compound and the medium are similar in chemical conditions. The volume of the screen can increase gland filling, extrusion, and loss of screening. Chemical swelling can also cause physical properties like tensile strength to be lost. Check O Rings and seals suppliers to know more about chemical swelling in the seal.
Switch to an elastomer sealing material with proven chemical resistance. Scale experts from the Oil Seal suppliers can assist you in identifying a material that provides sustainable scale performance in your chemical media.
Compression Set:
With flattened surfaces that are shaped like a groove/gland, the O-ring cross-part becomes less circular. After removing deforming stresses, the O-ring takes on a permanent’ set’ which means it can not return to its initial form. With comparison to this original set, the new compression set is quantified as a percentage of loss in compression says the technicians from O Ring supplier.
An elastomer can be modified physically and chemically at high temperatures and cause setting. This may lead to a loss of elasticity and the capacity of the O-ring to return to its initial form, a continuous chemical change.
Selecting O Rings and seals suppliers products with low and/or greater compression capacity will help increase dressing life. Gland structure also should not overcompress the O-ring with an excessive squeeze. Gland design should be verified. By using a more flexible polymer framework, the cold set can be decreased, reflecting a low temperature of the glass transition.
