New Needle Valves Feature An Integrated Stem And PTFE Seat
Hayward Flow Control's new NVA Series Needle Valves replace the old-style NV Series. The NVA Series features an integrated stem/PTFE seat for improved control and performance. Also incorporated in the new design are flanges for mounting panels. Sizes range from ¼" (DN8) to ½" (DN10). Available materials include PVC and GFPP with FPM seals.
Other key features include 150 psi at 70-degree non-shock rated, NPT threaded ends, GFPP thumb wheel, line pitch stem threads for precise adjustment and laying length equal to the NV Series.
The NVA Series features thermoplastic construction for demanding applications. The new design is suitable for the fine regulation of flow that is required in instrumentation and laboratory work. Specific application areas include water and wastewater treatment, chemical processing, food and beverage, pharmaceutical, marine and corrosive environments.