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Contact SupplierThe HE502, equivalent to John Crane Type 502, is a single‑end, unitized elastomer bellows mechanical seal designed for compact and confined gland environments. Known for its robustness and adaptability, it excels in process pumps, water systems, HVAC, and light chemical applications
Ideal for confined gland depths such as in DIN 24960-compliant pumps
Working Pressure: Up to 40 bar (≈580 psi) depending on size/material combo
Pressure (Bar): Typically up to 40 bar; many sources list 25–40 bar
Working Temperature / Temperature Range (°C): –40 °C to +205 °C
Shaft Speed in RPM: Linear tip speed up to ~13 m/s (≈ 2 500 fpm); RPM depends on shaft diameter – example: at 50 mm shaft ≈ 3 000 RPM
Tensile Strength: Not usually specified; components meet mechanical standards for SS and elastomers per manufacturer guidelines.


