• August 19. 2022

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...

• August 12. 2022

Vee packing is used for downhole equipment in oil field. JST provides chevron and HNBR Vee packing. The Vee packing group is composed of a top ring, a bottom ring and several intermediate center rings. V-Packings is ideal for medium and heavy duty applications. V-packing can withstand low pressure and high pressure when working under the most extreme conditions. JST standard Vee Packings materials...

• August 12. 2022

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...

• August 03. 2022

The high-performance metal spring energized seal is made of high-performance polymer, which can solve the sealing challenges of rotating motion, friction resistance limitation, plane change along the sealing surface and dynamic sealing. PTFE spring energized seals are designed for extreme low temperatures ranging from -270 ° C to extremely high temperatures, sometimes exceeding 300 ° C. The specif...

• July 27. 2022

The processing technology of turning seals is different from that of traditional molded seals. The raw materials for turning hydraulic seals are blank barrels formed by high-pressure extrusion of raw materials after heating and melting, and then the hydraulic seals are turned by special turning CNC seal processing equipment that programs various seal data through software. Turning hydraulic seals ...

• July 27. 2022

PTFE seal is the core of hydraulic equipment and the guarantee for normal operation of hydraulic equipment. Therefore, the installation of PTFE seals is very important. Any error in the installation process may affect the sealing performance, and then affect the normal operation of hydraulic equipment. Therefore, it is necessary for operators to understand the installation precautions of PTFE seal...

• July 25. 2022

JST compound H3385 is a hydrogenated acrylonitrile-butadiene-rubber commonly referred to as HNBR or HSN, with excellent physical characteristics, outstanding abrasion resistance and chemical resistance to common hydraulic fluids, sour oils/gases(H2S) and crude oils. H3385 has been optimized to withstand the risk of rapid gas decompression(RGD) or explosive decompression(ED)or anti-explosive decomp...

• July 15. 2022

1. Wellhead Casing Structure Wellhead casing usually consists of four-way, casing hanger, top wire assembly, flange parallel gate valve, connector, pressure display mechanism, etc; 2. Working principle of Rubber Seal The wellhead casing consists of the wellhead casing body, BT seal, casing hanger, dovetail seal , lockdown screw seal and sealing gasket. The casing hanger seat is hung on the steps o...

• July 15. 2022

When it comes to sealing in harsh operating conditions, the Upstream Oil & Gas industry has some of the toughest applications out there. With fluids such as hydrocarbons and gases such as H2S, combined with pressures climbing well above 20k psi and temperatures drifting to 200° C and higher, reliability in sealing is an absolute must to mitigate against unproductive downtime. Adding steam and ...

• July 15. 2022

In oil production, fracturing technology is one of the important measures to improve oil production and reserves. In order to achieve the purpose of increasing production, every oil well in the oilfield needs to be fractured, and some oil wells even need to be fractured many times. Generally, 4-5 fracturing trucks operate in the downhole oil layer to form a fracture, and the oil flows to the fract...