Choose High Quality Submersible Bilge Pump
Dec 29, 2021
What sealing materials does whaleflo use for it's bilge pump and diphargm pump Despite seeming like a small detail, a valve's O-ring material is very important. The material can dictate the temperature tolerance of a seal. It can also give the seal certain chemical resistances, with some types of rubber being compatible with different fluids. Viton is a synthetic rubber with a high chemical and temperature resistance. EPDM, which stands for ethylene propylene diene monomer, has its own set of properties that make it an extremely popular O-ring material. When comparing Viton vs. EPDM, several factors must be considered: temperature tolerance, chemical compatibility, and cost. Continue reading for the full comparison. EPDM Seals EPDM (ethylene propylene diene monomer) is a complex yet inexpensive rubber that has a wide range of uses. It is commonly used in roofing for waterproofing, as EPDM seals nicely. It is also a common material for freezer room seals, as it is an insulator and has excellent low-temperature tolerance. Specifically, EPDM operates effectively in temperatures ranging from -49F to 293F (-45C to 145C), making it perfect for applications in any temperature. While many rubbers have high-temperature resistance, only a few can deal with lower temperatures the way EPDM does. This makes it the first choice for anyone trying to create a seal in a cold environment or with cold materials. whaleflo bilge pump and diaphragm pressure water pump valve with EPDM seals o-ringTypical applications for freshwater. In addition to large temperature tolerance, EPDM also has a wide range of chemical resistance. These include hot water, steam, detergents, caustic potash solutions, sodium hydroxide solutions, silicone oils/greases, and many other diluted acids and chemicals. It is unsuitable for use with mineral oil products, such as lubricants, oils, or fuels. For specific chemical compatibilities of EPDM, click here. These impressive properties, combined with how inexpensive it is, make EPDM a very popular seal material. Viton Seals Viton is a synthetic rubber and fluoropolymer elastomer. "Fluoropolymer" means this material has high resistance to solvents, acids, and bases. "Elastomer" is a word that is basically interchangeable with "rubber." We won't get into what distinguishes an elastomer from a rubber here, but we will talk about what makes Viton so special. This material is often characterized by its green or brown color, but what really makes it unique is its density. Viton is significantly more dense than most types of rubber, which makes Viton seals some of the strongest. Viton has a wide temperature tolerance which ranges from -4F to 410F (-20C to 210C). The high temperatures Viton can withstand make it ideal for high-temperature applications. Viton is often used in O-rings, chemical-resistant gloves, and other molded or extruded goods. O-rings made of Viton are perfect for scuba diving, automobile engines, and valves of all kinds. When it come...
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