Industrial Vacuum Tee Reducers and Tee Fittings

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Standard tees and reducer tees are convenient building blocks for any vacuum system, allowing users to easily connect vacuum components or make branches in the vacuum line. Pfeiffer Vacuum Valves & Engineering offers a comprehensive selection of tee configurations with flanged end terminations, including ISO-KF (NW), ISO-K, CF (Conflat), and ASA. 

Industrial Vacuum Tee Reducers and Tee Fittings Features

  • 304 stainless steel construction
  • Common standard lengths
  • Custom designs possible – just ask us.
  • Full size or reducer tee configurations

We use only the highest-grade materials available to form our tee reducers to ensure you form tight, reliable connections. Our in-house, ISO 9001:2015-Certified manufacturing processes provide faster turnaround times at lower manufacturing costs on all tee fittings, including our popular 3T-NW-25B and 3T-NW-40H models.

Contact Pfeiffer Vacuum Valves & Engineering Today!

Request a quote online or contact us with any questions.

ISO/ASA/CF Tee Reducers & Tee Fittings

As an industry leader in reliable industrial vacuum system components for over 50 years, we have built a reputation for being a trusted tee fittings supplier for OEMs and industrial and research end-users. Our tee fittings are constructed from 304 stainless steel for increased performance and are available in standard lengths from 1.15” to 3.15”. We offer a wide selection of reducer tee configurations and customizations available upon request.

ISO-KF (NW) Tee Fittings

Our ISO-KF (NW) reducer tees are constructed from a straight main vacuum line with one perpendicular smaller-diameter port. Our vacuum tees, including our frequently ordered 3T-NW-25B model, are made from 304 stainless steel.


  • Alternate materials and custom designs are possible
  • Full-size tees offer three flanged connections of equal size
  • Quick and easy to install

ISO-K / ISO-F Tee Fittings

PV V&E’s durable ISO-K / ISO-F tees utilize stainless steel pulled port tubing and ISO-K flanges to form a reliable connection. Popular tee-fitting models include the 3T-NW-40H tee fitting.


  • Installs with just single- or double-claw clamps
  • 304 stainless steel construction

ConFlat (CF) Tee Fittings

ConFlat tee fittings rely on full metal sealing to form connections in your vacuum system. ConFlat tee fittings are available in standard lengths and diameters, with customizations available upon request.


  • Easy to install
  • Compatible with PV V&E’s silver-plated CF bolt and fastener hardware

ASA Tee Fittings

Pfeiffer Vacuum Valves & Engineering manufactures its ASA vacuum tee fittings from 304 stainless steel pulled port tubing and ASA flanges. ASA tee fittings are easy to install using the appropriate O-ring seals, bolts, and fastener kit from PV V&E.


  • Available in flat-flat or groove-flat configurations.
  • Full-size tees offer three flanged connections of equal size

Vacuum Tee Fittings Related Industries

With 60 years of expertise in the vacuum science industry, Nor-Cal Products, Inc dba Pfeiffer Vacuum Valves & Engineering has remained committed to providing the highest quality vacuum components for OEMs and industrial and research end-users. We have gained a reputation for manufacturing precise tee fittings and vacuum components for various industries, including:
  • Semiconductor industry
  • Research laboratories
  • Energy and aerospace
  • Life and health sciences development

Why Choose PV V&E?

Nor-Cal Products, Inc dba Pfeiffer Vacuum Valves & Engineering is dedicated to continually improving our prototyped and manufactured goods through implementing a carefully planned quality management system. Our strong in-house capabilities support the quality of our components and services in a variety of areas, including Logistics, Manufacturing, and Quality Assurance. We strive to meet our primary goal of 100% customer acceptance by manufacturing defect-free parts with on-time delivery, competitive pricing, and the best possible customer service.

Contact Us for Standard and Customized Tee Fittings

Request a custom quote or contact us online and let us find or customize the right tee fitting to meet your needs!

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