Valves & Actuation

Manual Hayward Three-Way Ball Valves come standard with a two port “TW” ball allowing for three flow configurations within 180˚ of rotation. With the bottom port as the inlet, the flow can be directed to the right or left port, or shutoff. On manual or actuated valves, and optional “TP” ball allows flow through all ports at the same time or flow shutoff. True Union design makes these valves very easy to maintain by allowing for easy removal from a piping system without breaking downstream connections.

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. 

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