- 4 October 2007 -

Plastic ball check valves for chemical and wastewater

Dwyer Instruments has developed the Series BCV, a new range of thermoplastic ball check valves suitable for chemical and wastewater applications.

The valves have been designed to prevent the reversal of flow in piping systems especially where backflow could potentially cause damage to pumps, filters, or process equipment.

They can operate without the need for any adjustments or settings. Line pressure moves the solid plastic ball off the elastomer seat, opening the valve, and when the inlet flow stops, back pressure (3.75 psi minimum) moves the ball back onto the seat, stopping the flow. All sizes of valves feature a true union design, and because of their all plastic construction, these valves will never jam or stick as a result of rust or corrosion, the company says. They will not contaminate sensitive fluids that come into contact with them.

www.dwyer-inst.com

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