Ningbo Tianze Machinery Technology Co., Ltd Home | 中文 | English
  • We are a leading manufacturer of non-return screw tip valves, utilizing the most advanced technology in both the design and manufacturing process, combined with years of experience to produce top quality valves.
    • High quality materials
    • Coating and treatments
    • Unsurpassed workmanship
    • Attention to detail
    • Providing a product of unsurpassed value to our customers.

    TIZA offers a complete selection of screw tip valves manufactured from a variety of steels and alloys that work most efficiently for chosen processes.
    We examine how your machinery is running to put together a package to enhance optimal efficiency. We know how to mix and match the best valve design per screw specifications. We carefully do our production in our commitment to the quality and prompt service you expect.
    We are proud to offer the highest quality end caps and valves created from corrosion and wear-resistant alloys that withstand high abrasion production environments including:
    • 3 Piece Valves
    • 4 Piece Valves
    • PVC Smear Tips
    • Ball Check Valves
    • OEM Tips
    All our screw tip valves are custom made. With tolerances that are held closer than OEM specifications, they are made from premium tool steels, are heat treated and have highly polished inner surfaces.

    Keywords: Screw Tips, Valves, Screw Tip Assemblies, Non-return Valves, Sliding Rings, Check Valves, Check Ring, Rear Seat, 3-Piece Screw Tips, Ball Check Valves, PVC Smear Tips, Feedscrews, Mixing Screw Tips, Ball Check Screw Tips, End Caps, Nozzles, Barrel End Cap Adapters, Nozzle Adapters, etc.
    Keywords in Various Languages: ponteiros, anéis de vedação e de encosto; punteras para la inyección, husillos para la inyección, husillos bimetálicos, husillos nitruración, husillos nitrurados como bimetalicos, husillos y cámaras para diferente tipo de maquinaria de plástico (inyección, soplado y extrusión); zawory zamykające, układy plastyfikujące