Valves & Actuation
![Hayward Needle Valves: Manually Actuated - CPVC \ FPM](/sites/default/files/styles/list/public/images/product/d94dbba26ce0193618228642a22b/NVA%20Series%20Needle%20Valve_PVC.jpg?itok=FLCgZ6rg)
Hayward Needle Valves are used for accurate metering of fluids. Turning the thumb wheel moves a tapered piston into the Teflon® seat to control the flow down to a few drops per minute. Precision molded, fine-pitched stem threads permit this very fine metering flow control. Pressure Rating - 150 psi @ 70°F (non-shock).
![Hayward Needle Valves: Manually Actuated - PP \ FPM](/sites/default/files/styles/list/public/images/product/d94dbba26ce0193618228642a22b/NVA%20Series%20Needle%20Valve_PVC_0.jpg?itok=uXsS0_zI)
Hayward Needle Valves are used for accurate metering of fluids. Turning the thumb wheel moves a tapered piston into the Teflon® seat to control the flow down to a few drops per minute. Precision molded, fine-pitched stem threads permit this very fine metering flow control. Pressure Rating - 150 psi @ 70°F (non-shock).
![Hayward Needle Valves: Manually Actuated - PVC \ FPM](/sites/default/files/styles/list/public/images/product/d94dbba26ce0193618228642a22b/NVA%20Series%20Needle%20Valve_PVC_1.jpg?itok=pGiHP-4E)
Hayward Needle Valves are used for accurate metering of fluids. Turning the thumb wheel moves a tapered piston into the Teflon® seat to control the flow down to a few drops per minute. Precision molded, fine-pitched stem threads permit this very fine metering flow control. Pressure Rating - 150 psi @ 70°F (non-shock).
![Hayward Needle Valves: Manually Actuated - PVDF \ FPM](/sites/default/files/styles/list/public/images/product/d94dbba26ce0193618228642a22b/NVA%20Series%20Needle%20Valve_PVC_2.jpg?itok=T0CN_0E6)
Hayward Needle Valves are used for accurate metering of fluids. Turning the thumb wheel moves a tapered piston into the Teflon® seat to control the flow down to a few drops per minute. Precision molded, fine-pitched stem threads permit this very fine metering flow control. Pressure Rating - 150 psi @ 70°F (non-shock).
![Marquest Throttle Master: Manually Actuated - CPVC \ PTFE](/sites/default/files/styles/list/public/images/product/ebfbe888736fb57cfea5f1098836/NA%20250%20PVC.jpg?itok=elh_XjyM)
Produced in two styles: Globe pattern (straight 180°) and Angle pattern (90°). NSF standard 14 & 61 compliant, FDA, USDA and USP standards met or exceeded. Fine metering control, excellent linearity of flow. No elastomer (O-rings) metals or lubricants. Working pressures to 250 psi @ 70°F.