Differential clogging indicators are vital components in hydraulic systems, acting as sentinels that prevent costly downtime and equipment damage. These devices monitor the pressure drop across a filter element, providing an early warning when it's nearing its capacity and needs replacement. This proactive approach ensures optimal system performance, protects sensitive components, and extends filter lifespan. How They Work: Imagine a hydraulic system flowing smoothly, with clean fluid coursing through its veins. Now, picture a filter element gradually becoming clogged with contaminants like dirt, metal debris, and moisture. This restriction creates a pressure difference between the clean fluid entering the filter and the dirtier fluid exiting it. Differential clogging indicators capitalize on this pressure difference.
They typically employ a piston or diaphragm mechanism that translates the pressure differential into a visual or electrical signal. Visual indicators often have a dial or gauge displaying the pressure drop, while electrical ones trigger an alarm, shut down the system, or send a signal to a control system when a preset threshold is reached.
Types of Differential clogging indicators :-

VD: High Pressure Type B: Visual Auto Reset

VD: High Pressure Type BM: Visual Manual Reset

VD: High Pressure Type C: Electrical Switch

VD: High Pressure Type CD: Electrical Switch

VD: High Pressure Type D: Visual & Electrical Switch

VD: High Pressure Type GC: Electrical Switch / Analog

VD: High Pressure Type GD: Electric Switch / Analog

VD: High Pressure Type J: Electrical Switch

VD: High Pressure Type J4: Electrical Switch

VD: High Pressure Type LE: Visual & Electrical Switch

VD: High Pressure Type LZ: Visual & Electrical Switch

VM: Medium Pressure Type B: Visual Auto Reset

VM: Medium Pressure Type BM: Visual Manual Reset

VM: Medium Pressure Type C: Electrical Switch

VM: Medium Pressure Type CD: Electrical Switch

VM: Medium Pressure Type D: Visual & Electrical Switch