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Items in Stock

Items in Stock

Our Brochure

2015 DBI Brochure
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Have Questions? Call: 864.984.4400 or Email: sales@donnellybrosinc.com

Screw Tips / Valves

Screw Tips and Valves

Screws can be made from different base materials and profile designs. Let us know what you are running.

We Specialize in

  • Free Floating and Locking Check Rings. Custom Designs available for your material requirements.
  • We make the 3PC regular style valves with or without the open flutes. Free Floating and Locking Check Rings. Custom Designs available for your material requirements.
  • 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. Free Floating and Locking Check Rings. Custom Designs available for your material requirements.

Call for prices or complete our Request a Quote form.


3PC Free Flow, Screw Tip

3PC Free Flow, Screw Tip

Free Floating and Locking Check Rings. Custom Designs available for your material requirements.


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3PC Regular, Screw Tip

3PC Regular, Screw Tip

We make the 3PC regular style valves with or without the open flutes.Free Floating and Locking Check Rings. Custom Designs available for your...


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4 PC Non Return Valve

4 PC Non Return Valve

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.Free...


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Barrel Screw and Valve Rebuilds