Needle Valve

Hayward Needle Valves: Manually Actuated - CPVC \ FPM
Hayward Needle Valves: Manually Actuated - CPVC \ FPM

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
Hayward Needle Valves: Manually Actuated - PP \ FPM

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
Hayward Needle Valves: Manually Actuated - PVC \ FPM

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
Hayward Needle Valves: Manually Actuated - PVDF \ FPM

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
Marquest Throttle Master: Manually Actuated - CPVC \ PTFE

Marquest Scientific’s complete line of Throttle Master™ Needle Valves provide precise control with fine adjustment of corrosive and high purity fluids. The developed metering chamber provides for the most reliable stabilization and linearity of flow. Produced in two styles: Globe pattern (straight 180°) and Angle pattern (90°).  Needle finish, SPI/SPE No. 1. Bubble tight, low torque shutoff, long term performance. NSF standard 14 & 61 compliant, FDA, USDA and USP standards met or exceeded. Needle stem is PTFE sealed for excellent chemical resistance