This grommet-type seal is designed to protect your connection solution by preventing the ingress of liquids into the waterproof connector along the cable.The introduction of IP68 electrical connectors has had a significant impact on electrical installations and their use according to the 18th Edition of Wiring Regulations (BS7671). EPDM is the preferred choice for interface O-rings in waterproof connectors designed to be mated and unmated at low temperatures.įischer Connectors also offers a wide range of custom solutions for applications where special sealing requirements are essential. Commonly used as weather seals on vehicles, it combines good water resistance with low glass transition temperature. ![]() ![]() EPDM (ethylene propylene rubber) is another elastomer characterized by a wide range of applications.Fischer Connectors uses Viton® as its first choice for most receptacle seals. Its low permeation and excellent broad chemical resistance are interesting for many applications. Viton® is a fluoropolymer often designated FKM.Fischer Connectors selects materials based on solutions that have proven high reliability in many difficult operating conditions. It is important to understand the quality of the sealing materials your manufacturer selects. Separate, environmentally sealed clamp sets are available for all common Fischer Connectors plugs. Cable material and quality strongly affect the reliability of this seal careful selection is essential to properly match the diameter of the seal to the diameter of the cable. This grommet-type seal is designed to protect your connection solution by preventing the ingress of liquids into the waterproof connector along the cable. In such cases, the use of protective caps is mandatory. Although this is a standard process on environmentally sealed products, it is incompatible with designs in which contacts are put into place by the customer (crimp contacts). High-quality sealing compounds are used for factory sealing of the block. In this case, the inner contact block of the receptacle must also be sealed to prevent dust or water ingress into the equipment. However, in some cases the waterproof connector must remain sealed even without protective accessories. Normally an open connector should be protected against environmental influences when disconnected, by using an adequate protective cap. Most standard, sealed Fischer Connectors products come with a panel seal. The seal works in a static way in most applications, its exposure to the environment is very limited due to the recessed O-ring position. This sealing element joins the waterproof connector housing with the panel or equipment housing. This seal’s function is to ensure long-term product reliability, especially if the waterproof connector is frequently mated and unmated.īecause the interface seal works dynamically when mating, and can be exposed to the environment, you should select the quality of the seal according to operating temperature, environment and fluids. ![]() It prevents ingress of water or harmful particles into the connection area where male and female contacts mate. Our IP68/IP69-sealed and hermetic solutions are available with a wide choice of materials and coatings to ensure their resistance to corrosion, while being lightweight and compact.īy definition, this seal protects the waterproof connector interface, i.e. Salt strongly increases water conductivity, so seawater and salt mist can act as an electrolyte, causing galvanic corrosion. Such demanding applications involved in immersion over long periods require ultra-sealed, watertight, cabled waterproof connectors that achieve an IP68 rating in both mated and unmated states. To withstand exposure for extended periods of time in liquids under high pressure, applications such as deep-submarine applications or pipeline-inspection equipment, and seismic-evaluation or drilling instruments in oil & gas, require waterproof connectors with special designs combining hermetic sealing with high-strength mechanical designs to guarantee safe and efficient operations.ĭesign engineers face special technical challenges for their marine and underwater applications such as autonomous and remotely operated underwater vehicles (ROV, AUV or UUV), which operate at depths where diving by humans is either impractical or dangerous.
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