The Low-Pressure 4-Port Switching Valves offer several flow distribution configurations. The right angle flow-switching valve (“L”) is a 2-Way selection valve, appropriate for detector or column switching applications. The 3-Way flow-switching valve (“T”) is an appropriate choice for applications that require a tee connector that can also be used as a 2-way selection valve. The 4-Way diagonal flow-switching valve can be used for protecting sensitive components, such as the column of an instrument during a cleaning or passivation cycle.


| Solvent | PEEK™ | Teflon® |
| Aromatics | R | R |
| Chlorinated | M | R |
| Ketones | R | R |
| Aldehydes | R | R |
| Ethers | M | R |
| Amines | R | R |
| Aliphatic Solutions | R | R |
| Organic Acids | M | R |
| Inorganic Acids | M | R |
| Bases | R | R |
| Sulfonated Compounds | M | R |
M Some solvents in this category are satisfactory, others are not. Please review the notes above or contact IDEX Health & Science for further information.
R Recommended.