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Sapphire Piston
Sapphire Pistons are a consumable part of the HPLC pump and should be replaced on a regular preventative maintenance schedule.
Detail Information
| Diameter (D) | from 0.381mm to 25.0mm |
| Tolerance of "D" | 0.005 to 0.025mm |
| Length (L) | 10.0 to 100.0mm |
| Tolerance of "L" | +/-0.05mm to +/-0.1mm |
| Surface Roughness | Working Surface: Rz0.01-Rz0.2, end surface: Rz3. 2 |
| Materials | Synthetic CZ/KY sapphire |
Sapphire Pistons are a consumable part of the HPLC pump and should be replaced on a regular preventative maintenance schedule.
It offers optimal concentricity and resistance to wear. The rod tolerance is tightly controlled during the machining process, resulting in a piston with maximal resistance to breakage and superior wear characteristics. The sapphire rods are attached to ferrules (generaly with high standard stainless steel)using a proprietary process that provides maximum control over concentricity, an important parameter that has a direct effect on seal lifetime.
