O-ring O-ring is a kind of rubber seal with a round cross-section, because its cross-section is O-shaped, so it is called O-type rubber seal, also called O-ring. It began to appear in the mid-19th century, when it was used as the sealing element of steam engine cylinders.
O-ring range of application.
O-ring is suitable for installation in a variety of mechanical equipment, in the specified temperature, pressure, and different liquid and gas media, at rest or in motion to play a sealing role. In machine tools, ships, automobiles, aerospace equipment, metallurgical machinery, chemical machinery, engineering machinery, construction machinery, mining machinery, petroleum machinery, plastic machinery, agricultural machinery, and various types of instruments, a large number of applications of various types of sealing components. o-ring is mainly used for static sealing and reciprocating motion sealing. O-ring is generally installed in the outer circle or inner circle with a rectangular cross-section in the groove to play a sealing role. O-ring seal in the oil, acid and alkali, grinding, chemical erosion and other environments still play a good sealing, shock absorption role. Therefore, O-ring is the most widely used in the hydraulic and pneumatic transmission system of a seal.

Inexpensive, simple to manufacture, reliable in function, and with simple installation requirements, O-rings are the most common mechanical design for sealing. o-rings are subjected to pressures of tens of megapascals (thousand pounds). o-rings can be used in static applications or in dynamic applications where there is relative motion between components, such as shafts in rotary pumps and pistons in hydraulic cylinders.
Advantages of O-Rings.
O-Ring has excellent sealing performance and high working life. The working life of dynamic pressure seal is 5-10 times higher than conventional rubber sealing products, up to tens of times, and can be the same life as the sealing substrate under certain conditions.
O-ring friction resistance is small, dynamic and static friction is equal, is "0" shaped rubber ring friction 1/2-1/4, can eliminate the low speed, low pressure movement "crawl" phenomenon.
O-ring high wear resistance, sealing surface wear with automatic elastic compensation function.
O-ring good self-lubricating performance. 
O-ring cross-sectional structure is extremely simple, and has a self-sealing effect, reliable sealing performance.
Because the O-ring itself and the installation part structure are extremely simple, and has formed a standardization, so the installation and replacement are very easy.
O-ring working pressure: 0-300MPa; working speed: ≤ 15m / s; working temperature: -55-250 degrees.
O-ring applicable media: hydraulic oil, gas, water, mud, crude oil, emulsion, water-glycol, acid.

Established in 2007, the company is a professional manufacturer and sales of various seals enterprises.
The company has a production site of 1000 square meters and has passed the ISO9001: 2000 international quality system certification, not only has a strict management procedure and quality assurance system, but also has 70 professional and technical personnel more than 60 sets of professional equipment, set product design, mould design and processing, rubber formula design and mixing, process control and testing as a whole; processing capacity of international advanced level. Strictly implement GJB9001 standard. With complete testing means and advanced technology, the annual output value reaches more than 30 million RMB. With comprehensive technical and production advantages, we strive to fulfill our customers' commitments in terms of quality, supply and after-sales service. Through our continuous efforts, in the fierce competition in the market for the products of technical tracking service With its own technology and first-class service, has cooperated with a number of large and medium-sized enterprises to maintain good performance has won the unanimous approval of the majority of users, and become an important supplier of many enterprises. And with a number of well-known enterprises to establish a long-term stable friendly relations of cooperation, the formation of a good community of survival, common prosperity, mutual benefit and win-win. The company always strives for survival by quality and development by service. Development", as the core value of the enterprise, adhere to the "customer-centric" business philosophy. The principle of honesty and pragmatism, seeking common development and creating brilliance together.

Luo qingwei

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