TERM-COLLAPSE-PRESSURE
Collapse Pressure
Filtration Performance
Also: burst pressure · structural integrity limit · element burst rating · collapse rating
Canonical Definition
The minimum differential pressure at which a filter element suffers irreversible structural failure under burst or implosion loading, determined by the collapse/burst test. Collapse pressure is measured by applying a static pressure differential across the element until structural failure occurs. It represents the upper structural safety limit — the maximum ΔP below which element integrity is guaranteed. ELIMFILTERS hydraulic and lube elements are designed with collapse pressures of 21–35 bar, providing safety margins of 3.5–7× above maximum bypass valve settings (3–6 bar). For air filter elements, collapse pressure is tested per ISO 3723.
Engineering Context
Collapse pressure is a structural safety limit, not an operational parameter. Filter elements should never approach collapse pressure in service. Its purpose is to define the margin of safety between the bypass valve opening pressure and catastrophic failure. Elements with insufficient collapse pressure are vulnerable to structural failure during cold starts (high oil viscosity creates elevated ΔP) or during bypass valve malfunction. Post-collapse events release all accumulated contaminant directly into the downstream circuit, requiring complete system flushing.
Applicable Standards
Related Technologies
Protection Systems
Knowledge Center Articles
KC-00 Governance Metadata
| Permanent ID | TERM-COLLAPSE-PRESSURE |
| Category | Filtration Performance |
| Status | Published |
| Version | 1.0 |
| Last Reviewed | 2026-07-05 |