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Highlighted Companies

Sealing Components Type U - China

price: 20.00 Dollar US$

Performance and Purpose: The u ring seal makes use of the advantages of Polyurethane, such as high strength, hardness, good elasticity and durability.

It is used in the hydraulic testing of oil well casing tubes, steel pipes and a variety of welded steel pipes of the petroleum and natural gas industry.

Product information The u ring seal makes use of the advantages of Polyurethane, such as high strength, hardness, good elasticity and durability, it has high sealing performance, abrasion resistance, and low deformation.

It is used in the hydraulic testing of oil well casing tubes, steel pipes and a variety of welded steel pipes of the petroleum and natural gas industry.

Advantages Either theouter wall or the inner wall of the steel pipe can be sealed according to the situation.

The sealing structureis more simple than other sealing rings.

Working conditions Compliant for use with several standards about hydraulic testing requirements including API 5CT-2018, ISO11960-2011 Petroleum and natural gas industries—Steel pipes for casing or tubing, GB/T9711.1-2011, GB/T9711.2-2011; GB8163-2008 for seamless steel tubes; GB/T3092-2008 for welded steel pipes.

Working pressure: ≤ 80 MPa Working temperature: -20℃~+80℃ Working medium: water, emulsion, hydraulic oil Material: Polyurethane Specifications: Specification table for U type sealing components Service & Support

As u ring seal manufacturer and supplier, JK Seals provides users with complete solutions to meet the different needs of customers while ensuring the normal operation and service life of your machines.

In terms of service, JK Seals guarantee to assist users during installation, commissioning and training of equipment.

To maximize the performance of the equipment during its operation and provide technical guidance and support in its subsequent upgrades.

In that way, JK Seals offers valuable and high quality service solutions in order to help you operate, optimize and evolve your production processes.


Company Contact:


  • Phone: 15081685853

  • Address: No. 1-2926, Chaichang Village East (Lianhang Building), Yongledian Town, Tongzhou District, Beijing, beijing , Anhui Sheng, China

  • Email: Email


Published date: November 19, 2021

  • Business Description: Beijing Jianke Huifeng Science & Technology Co., Ltd is founded in 1992, covers an area of 30,000 square meters and has a registered capital of 15 million yuan.

    It is under the jurisdiction of command of Chinese Academy of Building Materials Science, is a science and technology production enterprise specializes in development, production and selling of the sealing elements.

    The company has a history of more than 20 years in sealing industry.

    With its ability in sealing technology and manufacturing of PU materials and filled PTFE products, and the development concept focusing on customer needs, the company has a strong problem-solving ability in chemical corrosion resistance, abrasion resistance, high and low temperature resistance and special media resistance.

    It provides advanced and reasonable sealing solutions for many customers.

    The sealing products have been applied in China Petroleum, Sinopec, metallurgical machinery and other industries.

    The sealing elements produced by the company are compliance with international standards API5CT-2018GB/T9711-2017G B/T8163-2018GB/T3091-2015 (the sealing bearing pressure reaches 200MPa), which is in the leading position in this industry.

    The products also cover cylinder seal, rotary seal, metallurgical seal such as steel-making and rolling pipe, special seal for oil well fracturing in petroleum and petrochemical industry, scroll seal for air conditioning in new energy automobile industry, etc.

    Our company has independently developed and produced the main driving seals and articulated seals for full-face tunnel boring machines.

    It has made outstanding contributions to the localization of the main drive seal of shield machine and filled in the blank of domestic production of shield sealing rings.

    The products are suitable for different types of shield machines, such as earth pressure, mud, TBM, etc.

    and can be applied to the construction of different equipment under different geological conditions.

    The life time and performance have reached the advanced level of foreign countries.

    At present, the shield sealing produced by our company has been applied to shield machine equipment of host manufacturing unit, construction and maintenance unit.

    Through extensive use and verification by construction units, favourable comment and economic benefits have been achieved.

    Domestic shield sealing is gradually replacing foreign products.

    With strict enterprise production standards and manufacturing stable and reliable products, the company has passed GB/T19001-2016/ISO 9001-2015 international quality management system standards.

    We participated in the formulation of Rubber Seal for Full Section Tunneling Machine national standards , which is promulgated and implemented of in September 2018 - The company has obtained national patents of “Lip Seal Ring for Large Shield Machine” and other fifteen national patents, such as the patents of Pipe Pressure Test Seal Ring.

    The company has won the award of “Shield Machine Main Drive Seal” new product awarded by six ministries , such as Beijing Science and Technology Commission, Development and Reform Commission.

    China Machinery Engineering Association Driving Machinery Branch has given “High-quality Domestic Accessories Products”.

    It also won the reputation of “class A supplier” of TIANJIN PIPE (GROUP) CORPORATION.

    Company culture: People-oriented, Service innovation, Science and Technology Forerunner, Credit and Win-win.

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