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Brownlee Screw Tips Logo - Manufacturerd by Foltz Machine, LLC.

4-Piece Valves

Premium valves for your toughest projects.

Designed to hold up against just about anything, these 4-piece screw

tips are ideal for larger, more complicated projects that require a

sturdier, more abrasive resistant screw tip. We also offer custom-made

screw tips for any plastics industry application. Contact us or request a

quote to discuss your customization options.


  • Standard (4A)
    The industry standard 4A screw tips can handle resins that are up to 30% filled.
  • 4AA
    This carbide-inserted valve utilizes patented wear resistance technology, which includes carbide inserts on front seat faces.
  • 4AAA
    This carbide valve features upgraded materials and Brownlee patented wear resistance technology utilizing carbide inserts.


Interested in learning more about Brownlee 4-Piece Valves? Contact us today or request a quote.

4 piece tip with replaceable wear components.


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