Soft Seal Connectors – The ultimate hydraulic connectors February 27, 2018 Soft seal connectors are a modern development in hydraulic connectors, intended to address the most common issues with older designs, including leakage and the effects of vibration. They’re also designed to work in much higher pressure systems, to meet the growing needs of a wide range of applications across different industries. Soft Seal Connector Definitions Elastomer noun (Chemistry) An elastic substance occurring naturally, as a natural rubber, or produced synthetically, such as butyl rubber or neoprene. Elastomeric adjective (Chemistry) A part that has an elastic quality about it, or one that uses an elastomer. Soft seal, or elastomeric connectors use a soft seal to complete the joint, resulting in a leak free and vibration resistant joint. The seal is usually an O-ring. Advantages of soft seal connectors Soft seal connectors have a number of advantages, including: They are positive sealing Resistant to vibration Very high pressure capability Easy and quick to assemble, which is important in high-volume production Disadvantages of soft seal connectors The O-ring in soft seal connectors may harden with heat or soften with incompatible system fluids, so it is important that the seal material is suitable for the application. Fluids that can affect the elastic material in soft seal connectors include fuels, oils, solvents and other substances, depending on the composition of the soft seal. For this reason, selecting the right soft seal connector for the intended application is essential to ensure that the connector continues to perform as expected. Practical Applications of Soft Seal Connectors Examine the hydraulic system of this loader. It has been designed to be leak free. It employs elastomeric sealing with SAE flange, ORFS, UNO ports and O-ring sealing inside the pumps. It has been in service for a period of time already, and remains clean and leak-free. Elastomeric couplings are a modern, leak-free alternative to some older design hydraulic couplings. New hydraulic systems can be designed and sold on the basis of being leak-free. All it takes is a little understanding of the connection options available. Soft Seal Connectors In Industry Soft seal connectors, also called elastomeric connectors, use a soft seal to complete the joint, addressing both leakage and vibration effects. Types of Soft Seal Connectors Here are the main types of soft seal connectors available: DKOL (Dicht Kegel O Ring Leicht) DKOS (Dicht Kegel O Ring Schwer) SAE Flange (Society of Automotive Engineers) Quick release couplings RYCOLOK BSPP port – British Standard Pipe Parallel UNO port – Unified National O-ring ORFS – O-Ring Face Seal For an overview of the different hydraulic connector types, check out our introduction to hydraulic connectors. You can also learn more about tapered pipe threads and metal seal connectors. Want More Information? Make sure you select the right hydraulic hose for your next project. Download our 15 Keys To Selecting The Right Hose guide today.