Danfoss offers a range of hydraulic pumps which may use different types of pressure switches depending on the model and application. Without knowing the exact model of Danfoss hydraulic pump you are referring to, it is difficult to give specific information about the pressure switch. However, I can give you a general overview of pressure switches commonly used in hydraulic systems. In hydraulic systems, pressure switches are used to monitor and control the pressure level within the system. A pressure switch can activate or deactivate a specific function when the pressure reaches a certain set point, such as starting or stopping a pump, triggering an alarm, or controlling other components. The following introduces several pressure switches commonly used in hydraulic systems: 1. Mechanical Pressure Switches: These switches use mechanical elements such as springs and diaphragms to detect changes in pressure and activate electrical contacts. They are usually adjustable and provide a simple and reliable pressure control solution. 90-R-130-KA-5-AB-80-P-4-C8-H-03-GBA-38-38-24 90R130KA5AB80P4C8H03GBA383824 90R130-KA-5-AB-80-P-4-C8-H-03-GBA-38-38-24 90R130KA5AB80P4C8H03GBA383824 90-R-130-KA-5-AB-80-P-3-F1-F-05-GBA-42-42-24 90R130KA5AB80P3F1F05GBA424224 90R130-KA-5-AB-80-P-3-F1-F-05-GBA-42-42-24 90R130KA5AB80P3F1F05GBA424224 90-R-130-KA-5-AB-80-P-3-F1-F-03-GBA-29-29-24 90R130KA5AB80P3F1F03GBA292924 90R130-KA-5-AB-80-P-3-F1-F-03-GBA-29-29-24 90R130KA5AB80P3F1F03GBA292924 90-R-130-KA-5-AB-80-P-3-C8-H-03-GBA-38-14-24 90R130KA5AB80P3C8H03GBA381424 90R130-KA-5-AB-80-P-3-C8-H-03-GBA-38-14-24 90R130KA5AB80P3C8H03GBA381424 90-R-130-KA-5-AB-80-L-4-F1-F-03-GBA-36-14-24 90R130KA5AB80L4F1F03GBA361424 90R130-KA-5-AB-80-L-4-F1-F-03-GBA-36-14-24 90R130KA5AB80L4F1F03GBA361424 2. Solid State Pressure Switches: These switches use semiconductor technology to measure pressure and provide an electronic output signal. They are more compact and offer faster response times than mechanical switches. Solid state switches are commonly used in modern hydraulic systems that require precise control and integration with electronic systems. 3. Differential Pressure Switches: These switches are used to monitor the pressure difference between two points in the hydraulic system. They are typically used in filter monitoring applications to detect clogged filters or in systems with specific differential pressure requirements. To find the right pressure switch for your Danfoss hydraulic pump it is best to consult the pump's technical documentation or contact Danfoss directly. They can advise you on the specific pressure switch model recommended for your pump, or provide further assistance upon request. 1. Determine the pressure range: The hydraulic system works within a specific pressure range. Determine the operating pressure range of your hydraulic pump to ensure that the pressure switch you choose can handle that range. Consider the maximum and minimum pressure the switch needs to handle. 2. Consider electrical requirements: Pressure switches have different electrical ratings. Determine the voltage and current requirements of your hydraulic system to ensure compatibility with the pressure switch. Also, consider whether normally open (NO) or normally closed (NC) contacts are required, depending on the application's control logic. 3. Connection type: Pressure switches usually have specific ports or connections for hydraulic line connections. Determine the thread size or connection type (such as NPT, BSP, or metric) required for your hydraulic system. 4. Environmental factors: Consider the environmental conditions of the pressure switch action. This includes factors such as temperature range, humidity, and any exposure to chemicals or vibration. Make sure the pressure switch you choose is suitable for these conditions. 90-R-130-KA-5-AB-80-L-4-C8-H-04-GBA-42-42-24 90R130KA5AB80L4C8H04GBA424224 90R130-KA-5-AB-80-L-4-C8-H-04-GBA-42-42-24 90R130KA5AB80L4C8H04GBA424224 90-R-130-KA-5-AB-80-L-4-C8-H-03-GBA-42-42-30 90R130KA5AB80L4C8H03GBA424230 90R130-KA-5-AB-80-L-4-C8-H-03-GBA-42-42-30 90R130KA5AB80L4C8H03GBA424230 90-R-130-KA-5-AB-80-L-4-C8-H-03-GBA-42-42-24 90R130KA5AB80L4C8H03GBA424224 90R130-KA-5-AB-80-L-4-C8-H-03-GBA-42-42-24 90R130KA5AB80L4C8H03GBA424224 90-R-130-KA-5-AB-80-L-4-C8-H-03-GBA-35-35-24 90R130KA5AB80L4C8H03GBA353524 90R130-KA-5-AB-80-L-4-C8-H-03-GBA-35-35-24 90R130KA5AB80L4C8H03GBA353524 90-R-130-KA-5-AB-80-L-4-C8-F-05-GBA-32-32-24 90R130KA5AB80L4C8F05GBA323224 90-R-130-KA-5-AB-80-L-3-F1-H-03-GBA-42-42-24 90R130KA5AB80L3F1H03GBA424224 5. Consult Danfoss resources: visit Danfoss website or contact its technical support team for help. They can provide detailed information on pressure switches designed specifically for your Danfoss hydraulic pump model. Provide them with the model number and any specific requirements you have and they will be able to guide you in selecting the appropriate pressure switch option. Remember, it is essential to consult the manufacturer's documentation or contact the manufacturer directly for the most accurate and up-to-date information on pressure switches compatible with Danfoss hydraulic pumps. Danfoss experts will have the knowledge and expertise to provide the most accurate and tailored information for your specific application. They can guide you in choosing the right pressure switch, compatibility, and any other technical details you may need.