Hydac 308721 Hydraulic Pressure Clogging Indicator 360Psi

Hydac 308721 Hydraulic Pressure Clogging Indicator is a visual differential pressure indicator designed to monitor filter element condition in hydraulic systems, providing a clear signal when clogging reaches a preset pressure threshold to ensure proper maintenance and system protection. Manufacturer: Hydac Technology GmbH Country of manufacture: Germany Part number: 308721 Type: Hydraulic pressure clogging indicator Function: Monitors differential pressure across hydraulic filters Indication type: Visual pop-up indicator (mechanical) Set pressure: 360 PSI (approx. 25 bar) Operating principle: Spring-loaded piston actuates indicator when preset differential pressure is reached Mounting: Direct mount to filter housing or via threaded port (depending on configuration) Connection type: Threaded connection (exact thread size to be verified, commonly M10x1 or 1/8" NPT) Body material: Metal housing with plastic indicator cap Seal material: Oil-resistant elastomers (NBR or similar) Reset type: Manual or automatic reset depending on model variant (visual reset typical) Operating pressure range: Suitable for standard hydraulic system pressures (up to several thousand PSI depending on installation) Temperature range: Typically -20 °C to +100 °C Compatibility: Designed for Hydac hydraulic filter assemblies and compatible systems Fluid compatibility: Mineral oils, hydraulic oils, and compatible industrial fluids Protection: Ensures timely filter maintenance and prevents bypass or system damage Indicator visibility: High-contrast colored indicator (yellow top visible in packaging) Application areas: Hydraulic power units, industrial machinery, mobile equipment, filtration systems Key feature: Reliable mechanical indication without external power requirement Maintenance: Minimal, periodic visual inspection required Condition: New in packaging (as shown)