• 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...

• July 07. 2022

Plunger pump packing is the sealing device of plunger pump, which is mainly a protective device to prevent the liquid at the hydraulic end from flowing out and improve the operation efficiency. JST Seals has developed high performance well service pump packings to provide maximum sealing for high-pressure oil well service pump. As the plunger pump is a high-pressure machine pump, and the temperatu...

• July 06. 2022

JST 3" External S seal use material HNBR85+316SS, we verify the S seal at working condition -29°C  to +121°C, 10000PSi, product design refer to API 6A -annex F. Below are the external S seal main test contents: • 1-Visual and dimension inspection for the seals and test fixture before the testing • 2-Witness the seals assembling progress • 3-Witness the sealing test for the O-ring from C port ...

• June 29. 2022

Nonmetallic seals that are exposed to retained fluids shall undergo the design validation procedure described in API 6A Annex F.1.13. To meet with the Thermochemical Performance of Seal Materials required by API 6A Annex F, a variety of JST compounds including HNBR, FKM, PTFE, PEEK compounds are successfully certified by third party Alpine Polytech. Sour Gas Immersion FF/HH: Gas Phase: 35% by volu...

• June 29. 2022

The requirements of hydraulic system for reliability are increasing day by day, and the working conditions of the continuously developing high-efficiency hydraulic system become more complicated. Therefore, when selecting the most suitable material, it is very important to be familiar with the working conditions, such as working temperature and pressure, load, speed and medium. The most commonly u...

• June 24. 2022

The T-seal is developed to replace the existing O-ring in the long-life hydraulic and pneumatic system, because the O-ring rolls in the sealing groove, which is easy to cause screw failure. Their ability to fit into existing grooves means they can be retrofitted without rework or major modifications to existing hardware designs, simplifying field changes and new equipment manufacturing. The T-seal...

• June 20. 2022

With the development of fracturing and acidizing application technology, fracturing pumps with high pressure and large flow are required. The working condition of fracturing pump is extremely bad: high pressure, high acidity, high sand content and high sand hardness. Poor working conditions make the service life of the plunger pump seals short and the maintenance frequent. Sometimes, the seals mad...

• June 17. 2022

Valve insert is a necessary and vulnerable part of oil well fracturing pump in oil field. It forms a valve assembly with valve disc, valve cover, valve seat, guide claw, worm thread, nut, etc. when working, valve insert plays a role of sealing and buffering. Oil field special valve insert seal is mainly used in pumps, which functions as water inlet valve and drainage valve. Features: oil and corro...

• June 10. 2022

JST produces different material spring energized lip seal. Jacket material such as PTFE, PEEK, TFM. Spring material include 316ss or Alloy spring. For different working conditions, we use different seal designs and materials. If seal works at pressure over 6000PSi, PEEK back up ring is needed. For -196°C, we would use material TFM+Alloy spring. JST has ability to produce different dimensions of sp...