Parker Hannifin
A new 0.5-in. bore instrumentation needle valve (photo) gives plant engineers the means to improve reliability, and save both money and space in process and instrumentation applications involving viscous and contaminated media. The new H-Series needle valve is available as either a discrete hand valve for controlling media flow, or integrated into a monoflange-style manifold for the safe “double-block-and-bleed” connection of instruments to process lines. The large flow path of the 0.5-in. H-Series needle valve makes it less prone to blockage, and its metal-to-metal seal provides a bubble-tight seal over a temperature range from –55 to 538°C. — Parker Hannifin, Instrumentation Products Div. Europe, Barnstaple, U.K.