SAE flange seals are used to reliably seal SAE flange connections in hydraulic systems. The seal is positioned between the connecting components and helps prevent leakage of hydraulic oil or other suitable media. SAE flanges are widely used in hydraulic piping, pumps, motors, cylinders and industrial machinery.
An SAE flange is commonly sealed using an O-ring fitted into a dedicated groove. When selecting the correct seal, factors such as dimensions, material, hardness, medium, temperature and pressure are important. Techniparts supplies SAE flange seals for a wide range of hydraulic applications.
An SAE flange seal is the sealing component of an SAE flange connection. SAE flanges are used to connect hydraulic pipes and components. The flange construction provides the mechanical connection, while the seal prevents fluid from leaking between the connecting surfaces.
Many SAE flange connections use an O-ring fitted into a precisely dimensioned groove. When the connection is assembled, the O-ring is compressed in a controlled manner. This creates contact between the seal and the surrounding surfaces. SAE flanges are widely used in hydraulic installations where a reliable connection at high operating pressure is important.
During installation, the O-ring is placed in the sealing groove of the SAE flange. When both parts are connected, the O-ring is compressed. This compression causes the O-ring to make contact with the sealing surfaces and allows the connection to be sealed.
Correct groove dimensions and O-ring size are important. An O-ring that is compressed insufficiently may not seal effectively, while excessive deformation can also result in damage and a shorter service life.
In applications with high hydraulic pressure, it is important to prevent the seal from becoming damaged or being forced into an available gap. The combination of groove design, sealing material, hardness, clearance and operating pressure helps determine the load that the seal can withstand.
SAE flange seals are mainly used in hydraulic systems. They are used for connections between pipes and components where a compact, strong and reliable connection is required. Typical applications include hydraulic pumps, motors, cylinders, valves and pipework.
Hydraulic systems in excavators, cranes, tractors, agricultural machinery and other mobile equipment are subjected to intensive operating conditions. Pressure, vibration, temperature fluctuations and contamination can all affect the seal. Correct selection of the SAE flange seal is therefore important for a reliable hydraulic connection.
SAE flanges are also used in fixed industrial installations. Examples include hydraulic power units, presses, production machinery and other hydraulic systems.
The material of an SAE flange seal must be suitable for the medium and operating conditions. Important factors include the hydraulic fluid, temperature, pressure and required service life.
NBR is a widely used material for hydraulic seals and performs well with many mineral oils and greases. It is therefore commonly used in general hydraulic systems.
FKM, also known as FPM and often referred to by the brand name Viton®, is used where higher temperature resistance or chemical resistance is required. Exact suitability must always be assessed based on the medium and operating conditions.
The correct size is determined by the SAE flange and the corresponding sealing groove. It is important that both the inside diameter and cross-section of the O-ring match the construction.
Do not use only the outside diameter of an old O-ring to determine the replacement seal. A used O-ring may have become permanently deformed after prolonged loading. If the original size is unknown, the dimensions of the flange and groove can be used to determine the required seal.
During maintenance, inspect an SAE flange seal for wear, permanent deformation, cracks, cuts and other damage. Also inspect the groove and sealing surfaces. Dirt or damage can affect the performance of a new seal.
Install the new O-ring without twisting or damaging it. Only use an installation aid or lubricant if it is suitable for both the sealing material and the system medium.
When selecting an SAE flange seal, at least the dimensions, medium, temperature and operating pressure should be known. The hardness of the seal and the construction of the flange may also be important.
At high pressure, possible extrusion of the sealing material must also be considered. Techniparts can use the available technical information to help select a suitable SAE flange seal.
An SAE flange seal is used to create a leak-tight SAE flange connection in a hydraulic system. A suitable O-ring is commonly used for this purpose.
They are mainly used in hydraulic systems, for example with pumps, motors, cylinders, pipework and industrial or mobile machinery.
NBR is widely used for applications involving hydraulic oil. For higher temperatures or specific media, FKM can be used, for example.
No. The dimensions, cross-section, material and hardness must be suitable for the flange construction and operating conditions.
Replacement is advisable when the seal is damaged, hardened or permanently deformed. During maintenance, always inspect the groove and sealing surfaces as well.
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