The O-ring seal's pressure range in real use is a problem that has to be addressed. The seal ring's performance and relevant circumstances are influenced by its pressure range.
Pressure range
The maximum operating pressure that a sealing ring can tolerate falls within its pressure range. The term "working pressure" describes the medium pressure-both static and dynamic-that the sealing ring must withstand when in actual usage. A sealing ring's pressure range is often dictated by variables such the sealing structure, size, hardness, and manufacturing material.
In general, sealing rings' pressure range may be broken down into three categories: low, medium, and high pressure. The range of low pressure is typically less than 0.1MPa, the range of medium pressure is between 0.1MPa and 10MPa, and the range of high pressure is greater than 10MPa. There is no hard divide within this range. The sealing ring's diameter, cross-sectional shape, and operating temperature are among the other variables that impact the particular pressure range.
Relevant standards for sealing rings
International standards have been developed to guarantee the performance and quality of O-rings. One such standard is ISO 3601, which is applicable to sealing rings. Manufacturers and users can refer to the comprehensive rules provided by the ISO 3601 standard regarding sealing ring dimensions, composition, hardness, pressure range, and other related factors.
The pressure range of the sealing ring is typically stated in MPa (Megapascal) in the ISO 3601 standard. In order to guarantee sealing effectiveness and safety, this aids users in determining their suitable operating pressure range while choosing and utilizing sealing rings.
Application characteristics under different working conditions
Low-pressure uses: Sealing rings are typically employed in low-pressure applications, such faucets, pipe connections, and domestic appliances. For some situations when excellent sealing performance is not needed, its straightforward construction and inexpensive production cost make it appropriate.
Medium-pressure applications: Automotive engines, hydraulic systems, industrial equipment, and other systems frequently require seals in the medium-pressure range. In medium-pressure settings, good sealing performance is necessary, thus deciding sealing rings based on particular operating circumstances is necessary to guarantee their steady and dependable operation.
High-pressure uses: O-rings are typically utilized in high-pressure pipelines, hydraulic cylinders, specialized industrial equipment, and other high-pressure applications. The choice of production materials and procedures is particularly important for sealing rings in high-pressure situations, in order to guarantee that they have adequate flexibility and endurance under high pressure.
How to choose the right sealing ring
Recognize the working environment: In order to determine the right materials and specifications for a sealing ring, you must first recognize the working environment, which includes operating pressure, temperature, medium, and other variables.
Consult pertinent standards: To determine the size, hardness, and pressure range requirements for sealing rings, consult pertinent standards like ISO 3601, and select items that satisfy the criteria.
Select the appropriate content: The material that a sealing ring comprises has a direct impact on how well it seals. Materials should be chosen with various media in mind, taking into account attributes like resistance to oil, high temperatures, corrosion, and more.
Pay close attention to how you install and operate the sealing ring. Make sure it's not distorted or broken, don't use it in an excessive pressure range, and take care of any lubrication and maintenance to prolong its lifespan.
Considerations such as actual needs, working environment, and pressure range should all be taken into account when picking and using O-rings. Appropriate products should be selected to guarantee that they can carry out a stable and dependable sealing function under a variety of working conditions.
