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JST develops and supplies downhole tool seals for the oil and gas industry. We have developed and improved PTFE, NBR, HNBR, FKM, peek and other materials. These materials have high pressure resistance and good sealing performance, and have passed the hydrogen sulfide immersion test and explosion-proof test. Generally speaking, sealing materials suitable for downhole harsh conditions are not easy t...
The number of reliable sealing solutions for Low-Temperature Service in LNG plants is limited. The two main polymers currently used are PTFE spring energized seal or UHMW-PE seals. The challenge of using liquefied natural gas The leakage of LNG (liquefied natural gas) at low temperature is dangerous to the health and safety of workers and the operation of the plant. The problems such as toxicity, ...
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...
Guangzhou JST Seals offers downhole sealing solution and products. Bottom hole assembly (BHA) tools (such as impactors and jars) need to be sealed to protect the tool hydraulic system from the impact of abrasive drilling mud and cuttings in the hole. Measurement while drilling (MWD) tools sometimes need high-temperature sealing solutions. This field operation is expensive, If seal failed it would ...
LNG Lip Seal is a type of spring energized seal, commonly used in LNG (liquefied natural gas) filling guns. Currently, it can be installed with most of the brands in China and overseas. The jacket of the LNG Fueling Nozzle Seals is made of polymer materials, which can withstand a low temperature of - 200 degrees. It is designed with a stainless steel anti-corrosion spring with special low temperat...
PTFE is the abbreviation of Polytetrafluoroethylene, also name is Teflon. PTFE is used in a variety of industrial products including gaskets, bearings and parts for valves, pumps and hydraulic cylinders. PTFE offers the following characteristics: • Low Friction, good self-lubricating function. • Good Electrical Insulation. • Wide Temperature Range (from 250℃+ to -195℃) • Excellent Acid & Chemi...
Spring lip seals have been used for many years. Spring lip seals are used in a manner similar to conventional elastomer seals, such as o-rings. Elastomer seals often fail due to conditions that often occur in their operating environment, such as chemical corrosion, extreme high or low temperatures, extrusion, friction, or compression set. However, spring lip seals have different structures and do ...
In the oil and gas industry there is a practice called fracking, to speed up the migration of gas and petroleum fluid from source rocks or reservoir rocks. The fracking is an oil and gas well stimulation measure with broad application prospects. At present, hydraulic fracturing is the main form of natural gas exploitation. Water (fracturing fluid) mixed with chemical substances is used to inject i...
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