Check Valve
The check valve features low opening pressure, good sealing performance, and long service life. It enables precise one-way control of microliter-volume liquids and is widely used in the liquid path systems of high-performance liquid chromatography, mass spectrometry, and other microfluidic analytical instruments.
Technical data
| Diameter of ball: | Φ1.75/Φ3.00/Φ3.175/Φ4.76 | Diameter of hole: | Φ1.08/Φ2.00/Φ2.03/Φ2.15/Φ2.90 |
| Bubbles of sealing: | 0-3per minute; 0-6per minute; 0-12per minute |
Features & Benefits
Hard-Seal Lapping and Mating Technology
Precision hard-seal lapping creates a conforming sealing face between the ruby ball and the sapphire seat. It eliminates the risk of elastomer aging, supports high pressure, offers broad media compatibility, and provides good seal recovery after reassembly.
Good Sealing Performance
The ruby ball and sapphire seat are precisely matched, resulting in minimal reverse flow and ensuring one-way flow in the liquid path.
Stable High-Pressure Operation
Withstands relatively high system pressure and maintains a stable one-way shutoff function over the long term.
10,000-Class Cleanroom Assembly
Strict cleanliness control helps prevent contaminants from interfering with liquid path accuracy.
Precise Micro-Flow Control
Tailored for trace liquid delivery, meeting the high-precision fluid requirements of micro-analytical equipment.