Aalborg has released its VT6 6mm orifice PTFE Needle valves for corrosive liquids and gases. The valves, which have six components, minimising sources of leakage, are suitable for high-flow ranges while maintaining linear, repeatable flow-rate performance. The VT6 valves can be used in pressure, non-critical vacuum service, or as shut-off valves. The unique radially compressed PTFE O-ring feature allows quick compression adjustments without disassembly. PTFE and PCTFE materials mean that the VT6 valves are suited to laboratory and industrial applications requiring corrosive-gas and liquid regulation or high-purity service. The valves are panel-mountable and include: PCTFE valve spindles to help eliminate creeping; 3/8in FNPT ports and fluids contact only PTFE/PCTFE materials.