Hayward Flow Control has announced the launch of a new design NVA Series needle valves, replacing the old style NV Series. The NVA Series is offered in sizes from ¼ to ½ inches. It features an integrated stem / PTFE seat, and incorporated in the new design are flanges for mounting panels, NPT threaded ends, and GFPP thumb wheel. The valves are available in PVC and GFPP with FPM seals. Fine pitch stem threads allow precise adjustment, and flow rates may be adjusted down to drops per minute. Non-shock ratings are to 150 psi at 70F. Specific application areas include water and wastewater treatment, chemical processing, food and beverage, pharmaceutical, marine and corrosive environments.
