Hayward NV40025T Needle Valve THD 1/4 Inch PPL

The Hayward NV40025T represents a specialized needle valve engineered for precise flow regulation in demanding water management environments, particularly within commercial pool filtration networks. Featuring a 1/4 Inch main port, this versatile device utilizes a standardized threaded pipe connection (THD) on both ends that securely accepts copper or PVC fittings commonly found throughout professional plumbing infrastructures and circulation loops. Its body construction identified by the PPL designation provides inherent chemical resistance and durability against corrosives often encountered during routine water treatment cycles. Technicians utilize this specific model to isolate supply lines effectively while maintaining tight shutoff capabilities required for seasonal draining or maintenance procedures. Because the needle design permits fine modulation of volume, it prevents shock loads that often damage sensitive meters or filters when flow resumes suddenly.