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Trimming of rubber seals is an essential process in the production of rubber products. The quality of trimming process directly affects the production efficiency and quality of rubber seals. Common trimming methods of rubber sealing ring are as follows: 1. Manual trimming. Manual trimming is the most traditional trimming method, which trims the excess glue edge step by step along the outer edge of...
1. Tensile property of valve stem sealing material Tensile property is the first property to be considered for sealing materials, including tensile strength, constant tensile stress, elongation at break and permanent deformation at break. The tensile strength is the maximum stress at which the specimen is stretched to fracture. The constant elongation stress (constant elongation modulus) is the st...
Lip seal, also known as spring energized ring, is widely used in various fields because of its excellent sealing performance. In the production of valves under special working conditions, rubber O-rings cannot meet the requirements, so other sealing schemes shall be selected instead. The advantage of lip seal is that it can realize "self sealing" like an O-ring, that is, its sealing performance in...
As one of the main components of valves and pressure pipelines, pressure dissolvers, boilers and other equipment, ball valves are used to control the flow or cut-off of media. They are widely used in various industries such as LNG, electric power, light industry, construction, metallurgy and so on. As a low cost, rubber O-ring (hereinafter referred to as O-ring) is applicable to be installed in va...
Structure of casing head The wellhead casing is composed of four-way, casing hanger, jacking assembly, flange type parallel gate valve, connector, pressure display mechanism, etc; Metal and rubber seal of wellhead casing The metal and rubber seals of the casing head are composed of the wellhead casing body, BT rubber seal, upper metal seal component, lower metal seal component, casing hanger, dove...
Perfluoroether rubber (FFKM) is a high-performance sealing material, whose excellent performance has led to its application throughout the entire manufacturing system of semiconductor products. FFKM seal is one of the main consumables required for the production of integrated circuits. Main performance characteristics of FFKM: 1) Physical properties FFKM has a density of 1.9-2.0g/cm ³, Its physica...
The Oilfield packer element, usually is the rubber sealing product with cylinder shape which is used in layered mining, testing, water injection, acidification and fracturing in oil field. According to the mode of use, it can be divided into expansion packer element and compression packer element. JST offers elements in a variety of oilfield suitable materials including materials for high pressure...
Packer elements are components used in oil and gas well completion operations to isolate different zones of the wellbore. The design factors of packer elements include: Material Selection: The choice of material for the packer element is critical to its design. It needs to be able to withstand the downhole conditions, such as high temperatures, pressures, and corrosive fluids. Common materials use...
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