For injection, switching, and stream selection, for GC, HPLC, prep HPLC, and low pressure LC

• 1/32", 1/16", 1/8", or 1/4" Valco ZDV fittings
• 3, 4, 6, 8, 10, 12, and 14 port and internal sample two position versions
• Five multiposition flowpath configurations with as many as 16 positions
• A variety of materials for hostile environments and continuous use at elevated temperature
• Can be configured for use at temperatures up to 350°C or pressures up to 5,000 psi

The Valco design lends itself to a unique variety of connecting slots and port arrangements. The rotor is held in place by a preload assembly, which allows rotor replacement without removing loops and tubing and without disengaging the valve from the actuator or mounting bracket. In addition, the preload assembly ensures that the valve is always reassembled to the factory-set tension.