Vacuum Fittings - CF Reducing Tee: Key Connection Solution for High Vacuum Systems

CF Reducing Tee is designed for high vacuum systems, featuring ConFlat (CF) flange standards to ensure ultra-high sealing performance. Ideal for semiconductor, research, and aerospace applications, providing reliable reduced-bore pipeline connections.

Product Overview

The CF Reducing Tee is a high-vacuum connection component designed according to the ConFlat (CF) flange standard. It is primarily used for T-shaped connections between vacuum pipelines or equipment with different diameters. Manufactured from high-purity stainless steel (e.g., 304L or 316L) and equipped with metal sealing gaskets (copper or oxygen-free copper), it ensures excellent airtightness and corrosion resistance in ultra-high vacuum environments. Its reducing design meets the fluid distribution requirements of complex vacuum systems, making it widely applicable in semiconductor, scientific research, and aerospace industries.

Product Structure & Features

Structure

T-shaped body: Made of 304L/316L stainless steel, featuring three ports in a T-configuration for connecting pipelines of different sizes.

CF flanges: Each port is equipped with a CF flange for secure sealing with other vacuum components.

Sealing gasket: Copper or oxygen-free copper gaskets precisely match the CF flange groove to prevent gas leakage.

Key Features

Ultra-high vacuum compatibility: Suitable for environments above 10^-9 Pa.
Reduced-bore connection: Enables seamless connection between pipelines of different diameters.
High sealing performance: Metal gaskets ensure long-term stability with no leakage risk.
Strong corrosion resistance: Stainless steel construction withstands harsh chemical environments.
Easy installation: Standardized CF flange design allows quick assembly and maintenance.

Applications

Semiconductor manufacturing: Used in vacuum coating machines, etching equipment, and CVD/PVD systems.

Scientific research: Applied in particle accelerators, electron microscopes, and surface analysis instruments.

Aerospace: Satellite vacuum testing, spacecraft propulsion systems, and space simulation chambers.

Medical & optical: Laser devices, X-ray tubes, and high-energy physics experimental setups.

Technical Specifications

CF Reducing Tee Frequently Asked Questions (FAQ)

1. What is the vacuum range for CF flange tees?

This fitting is suitable for ultra-high vacuum systems above 10^-9 Pa, meeting the stringent requirements of semiconductor and research equipment.

2. Do vacuum reducing tee fittings require regular gasket replacement?

Metal gaskets (copper/oxygen-free copper) are durable, but replacement is recommended if deformation or wear occurs after disassembly.

3. How to properly install high vacuum connection components?

Ensure flange surfaces are clean, place the gasket precisely in the groove, and tighten bolts evenly to the specified torque.

4. Can stainless steel CF tees be used in corrosive gas environments?

316L stainless steel offers superior corrosion resistance, making it suitable for corrosive media, but material selection should match specific application needs.

5. Are custom sizes available for semiconductor vacuum fittings?

Yes, non-standard sizes can be customized based on customer requirements.

6. How to test the sealing performance of research-grade vacuum connectors?

Helium leak detectors or vacuum pressure tests can verify sealing integrity.

7. What is the temperature limit for ultra-high sealing tees?

Standard stainless steel CF tees withstand temperatures up to 200°C; higher temperatures require specially treated materials.

8. Do vacuum system pipeline connections support quick disassembly?

CF flanges use bolted connections, but some models can integrate with quick-release flanges (e.g., KF flanges).

9. Can different CF flange sizes be mixed in spacecraft vacuum components?

Different sizes require adapter flanges; direct mixing may compromise sealing.

10. How to select the right CF reducing tee for particle accelerator vacuum systems?

Choose based on pipeline diameter, pressure range, and media characteristics—technical support is available for selection guidance.