For over a quarter of a century, Donnelly Bros Inc has been solving injection molding problems...
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Product Line Card


 

Screw Tips

 We make the 3PC regular style valves with or without the open flutes..
3PC Free Flow
3PC Regular

We stock 4PC screw tip valves. In 1985, we began the marketing of this new product to custom processors. It was ridiculed by the OEM's initially.
 

4 PC Non Return Valve

 

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