SAE Flange Torque Value
SAE Flange torque value is one of the most important factors for consideration during the installation of the hydraulic system connection. SAE Flange torque value is defined as the twisting force of the bolts and nuts. Before assembling a double SAE Flange or any other hydraulic application, the torque value has to know as it determines the tightness of the bolt or nut.
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Adhering strictly to the torque value required for the SAE Flange is very important because under-tightening or over-tightening could cause serious havoc. The torque value of any hydraulic system is very unique because they come in a variety of sizes and ranges.
1. What are SAE Flanges ?
SAE Flanges are connecting devices used in hydraulic applications. Most times, the connection of hydraulic applications requires the need for pipes, hoses, and tubes, hence, the need for the flanges. Flanges serve as the major connectors designed with holes for each size of pipe, tube, or hose based on the application required. SAE Flanges come in a variety of specifications and standards.
SAE Flange is the type of flanges designed following the SAE specifications. SAE here is an acronym for “Society of Automotive Engineering”. SAE Flanges follow the SAE J518 / 1SO 6162 standards. To fit into various applications, SAE Flanges are available in sizes ranging from 3/8” to 5”. Likewise, the SAE Flange is designed to fit in different pressure series. In the general term, they are classified into two; Code 61 and Code 62. Code 61, comes with a pressure series of 3000 PSI while Code 62 has a pressure series of 6000 PSI.
SAE Flanges are designed with holes for bolts and nuts. These are used for connection and ensuring the connection is safe to avoid disasters. However, when using bolts and nuts, it is essential to follow the torque value. In an instance when the torque value is less, the connection could loosen easily, and when the connection is too tight, the bolts are exposed to a state for stretching which pushes the machine to forceful working. Both problems are very hazardous for the hydraulic machine as well as the operators of the system.
2. How can SAE Flange Torque Value be measured ?
The torque value for a particular SAE Flange regardless of the size or material is always available in the package. However, to be double sure, some manufacturers’ websites contain detailed information about the required torque value. This serves as a guide to help prevent hazards.
For proper measuring of the torque value, the torque wrench can be used. A torque wrench is a mechanical tool with precision figures on it. This shows the values as the bolts and nuts are tightened. Torque wrenches are available in different models. Some prefer the analog version while others opt for the digital model.
The torque value of the bolts and nuts is very important because they are clamping tools for the connection. For under tightened bolts, they are prone to get loose during the system’s operation. Hydraulic systems especially high-pressured systems vibrate when working. When the bolts are not tight enough, they can get loose as the vibration continues, thereby resulting in safety problems for the machine. Similarly, the over-tightening of the bolt affects the system and changes the orientation of the application.
3. What is the right torque value for SAE Flanges?
The right torque value for SAE Flanges is shown in the table below:
Torque Value for Code 61 SAE Flange:
Torque Value for Code 62 SAE Flange:
4. What is the installation procedure for SAE Flanges?
Please refer to the steps below for the proper installation of the SAE Flange:
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Step 1
You need to check the surface area of the SAE Flange. This is to ensure the area is free from any contaminant or other particles that could affect the connection or hydraulic system during operation. Also, lubricate the O-ring parts generously in preparation for the sealing.
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Step 2
Fix the SAE Flange into their designated positions. Insert the o-rings into the female SAE Flange groove. Also, the washer, bolts, and nuts should be in their holes.
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Step 3
After the proper connection, the hand tightens the bolts and nuts using the exact torque value. While tightening, you should slowly and carefully handle the nuts to prevent wearing out of the components.