Valco Medium Temperature 4 Port GC Valve, 1/16″ Ftgs, 0.40mm Ports, Manual Actuator, No Standoff
- Number of Positions: 4
- Fitting Size: 1/16″
- Port Diameter: 0.40 mm
- Rotor Material: Valcon E
- Valve Body Material: Nitronic 60
- Actuator: Manual
- Standoff: None
- Maximum Pressure: 400 PSI Gas
- Maximum Temperature: 225C
- Sample Loops sold separately.
- Typical Product Lead Time: 3-4 weeks
Nitronic 60: Chemical resistance is similar to Type 316 stainless, but its resistance to galling and oxidation make it superior to Type 316 or 303 in the majority of applications. This is the standard material in Valco and Cheminert metal valve lines.
Valcon E: A polyaryletherketone/PTFE composite, the E material receives wide GC use in what had previously been a problematic gap between the optimum temperature ranges of P and T, and in HPLC applications where the temperature requirement is higher than what can be handled by the H material and where a lower pressure limit can be tolerated. (Standard specs are 400 psi at 225?C, but higher pressure ratings are possible at reduced temperatures.) However, this polymer cannot be used in prolonged contact with high concentrations of sulfuric and nitric acids, DMSO, THF, or liquid methylene chloride.