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DeutschHow to ensure the sealing performance of steel hydraulic pipe fittings?
Author:admin Date:2023-10-09
1. Selection of sealing materials: The selection of sealing materials is the key to ensuring sealing performance. For example, NBR (nitrile butadiene rubber) is a commonly used sealing material favored for its good oil resistance, wear resistance and elastic recovery properties. In some high temperature environments, FKM (fluoroelastomer) may be more suitable due to its high temperature resistance and chemical stability.
2. Design of sealing surface: The sealing surface usually requires precision processing, such as grinding or polishing, to ensure surface smoothness. This helps reduce tiny defects and improve sealing effectiveness. High-precision CNC machines and grinders are used to precisely manufacture sealing surfaces.
3. Lubrication of sealing surface: Applying lubricant to the sealing surface is the key to improving sealing performance. For example, in hydraulic systems, hydraulic oil itself can act as a lubricant, ensuring that seals reduce friction and improve sealing effectiveness when they slide on the contact surface.
4. Matching of sealing surfaces: The matching dimensions of the sealing surfaces need to be very precise to ensure that the sealing surfaces form an effective seal when connected. The matching accuracy of the sealing surface can be ensured through high-precision machining, such as CNC milling machines and lathes.
5. Design of sealing ring: Sealing ring is a key component of sealing performance. For example, the O-ring is a commonly used sealing ring whose circular cross-section provides effective sealing under compression. The X-shaped ring provides higher sealing and pressure resistance through its unique cross-section design.
6. Design of connection methods: Different steel hydraulic fitting use different connection methods, such as threaded connection or flange connection. The design of threaded connections needs to ensure the accuracy of the threads to ensure a good seal when connecting. For flange connections, the sealing performance between flanges needs to be considered.
7. Preloading: Proper preloading helps to improve the sealing effect. For example, in hydraulic systems, threaded pipe fittings usually need to be preloaded with appropriate torque to ensure that the appropriate contact pressure is maintained under the operating pressure, thereby improving sealing performance.
8. Testing of sealing performance: Manufacturers usually test the sealing performance of hydraulic pipe fittings, such as through pressure testing. During testing, pipe fittings are exposed to high-pressure liquids to ensure they can seal safely and reliably under predetermined operating conditions.
9. Material compatibility: The selection of sealing materials needs to be compatible with the medium being sealed. For example, for seals in contact with hydraulic oil, the sealing material should be rubber or other suitable materials that are compatible with the hydraulic oil to avoid chemical reactions affecting sealing performance.
90degree METRIC FEMALE 24degree CONE O-RING L.T. hydraulic hose fitting 20491
90degree METRIC FEMALE 24degree CONE O-RING L.T. hydraulic hose fitting 20491
Stainless steel hydraulic fittings are used in hydraulic systems to connect hydraulic lines or hoses to other components, such as pumps, valves, and cylinders. These fittings are designed to withstand high pressure and are resistant to corrosion, making them suitable for use in a wide range of applications, including those that involve exposure to water, oil, and other fluids.
There are several types of stainless steel hydraulic fittings available, including:
Flare fittings: These fittings are used to connect tubes or hoses to components that have flared ends. They typically have a flared end that is inserted into the component and a nut that is tightened to hold the fitting in place.
Compression fittings: These fittings consist of a nut and a sleeve that are tightened around the hose or tube to create a seal. They are easy to install and can be used with a wide range of hose and tube materials.
O-ring fittings: These fittings use an O-ring to create a seal between the fitting and the hose or tube. They are often used in high-pressure systems and are known for their leak-free performance.
JIC fittings: JIC (Joint Industrial Council) fittings are a type of flare fitting that is commonly used in hydraulic systems. They have a 37-degree flare angle and are available in a range of sizes and configurations.
Stainless steel hydraulic fittings are typically made from high-quality stainless steel, such as 316L or 304, to ensure durability and corrosion resistance. They may also be coated with additional materials, such as zinc, to enhance their corrosion resistance.
