Rugged, heavy-duty balanced diverter valves for corrosive chemicals and high-purity applications

POM Home Page Product Information -- this is sort of a site map to HTML pages for all products Technical Information Hub -- this is a veritable VALVES 101 to provide novices with a better understanding of valves, and valve experts with a better understanding of plastic valves. Company Information -- includes contacts, photos, references, map and directions, and more Distributors and Industry Links -- click right on the map to find a distributor near you Quote Request Form

Balanced 3-Way Valve with Position Sensor

3valve.gif

A new design is now offered for an air-operated, thermoplastic 3-way valve with optional position indication/verification. The valve is designed to toggle between two isolated ports opposite a common port. Unlike many 3-way valves, usage of two different corrosive or ultrapure liquids through the same valve is feasible, as the two inlet/outlet ports are not shared.

This valve is not in regular production. Minimum Quantities Apply. Please consult factory.

The valve has two inlets and one outlet. One inlet is normally closed and the other is normally open. Because this valve uses a "balanced design," meaning all seal diameters are equal, it can also be used in reverse with one inlet and two outlets. The "balanced design" also permits a wide range of pressure ratings (full vacuum to 100 psi) at any port whether inlet or outlet.

A spool-type shaft opens and closes the ports. The valve is designed with the upper port normally open to the common port, and 40-100 psi air pressure is applied to the pilot to force the shaft down and open the lower port. When air is exhausted, an isolated, non-wetted spring returns the shaft to its original position, closing the bottom port and reopening the top port. The design ensures that one port closes off before the other opens keeping liquids from the separate ports from co-mingling.

The valve provides electronic position indication that verifies which port is open at a given time. When the shaft is in its "normally up" position, a magnet on the shaft energizes a hermetically-sealed sensor indicating that the top port is open. The signal is used to light an LED display or electronically transmit the valve position to a control system. When air pressure forces the shaft down thus closing the lower port, contact is broken on one sensor and a second sensor is energized.

This lightweight, compact valve is equipped with stainless steel fasteners. The ports are standard NPT piping with a 1/8" air port and 1/4" inlets/outlets. Choices of body materials include PVC, CPVC, polypropylene, and PVDF with Viton® or EPDM seals. Custom sizes to 3" NPT are also available.

This valve is not in regular production. Minimum Quantities Apply. Please consult factory.

For further information, please contact: emailAttention: Andy Ryan.

     Note: For complete information request catalog: Catalog Request Balanced 3-Way


email

Top of Page

Kynar ® is a registered trademark of Arkema., Corzan tm is a trademark of Noveon. Viton® is a registered trademark of DuPont Dow Elastomers. Geon® is a registered trademark of the Geon Co.