What Is a CF Nipple?

A CF nipple, also known as a ConFlat (CF) nipple or CF half nipple, is a precision vacuum fitting consisting of a seamless tube permanently welded to a ConFlat flange. It is designed to create a rigid, leak-tight connection between vacuum components in High Vacuum (HV) and Ultra High Vacuum (UHV) systems.

Unlike threaded or compression fittings, a fully welded CF nipple minimizes potential leak paths while providing excellent structural strength and long-term sealing reliability. Combined with a precision-machined knife-edge flange and an OFHC copper gasket, it forms a dependable metal-to-metal seal capable of withstanding repeated bake-out cycles and demanding operating conditions.

Flow Wing Metal manufactures high-quality Titanium CF Nipples using premium titanium materials, precision CNC machining, and expert TIG welding. Every component is engineered for applications that require exceptional vacuum integrity, corrosion resistance, and dimensional accuracy.

Why Choose a Titanium CF Nipple?

Titanium is one of the preferred materials for vacuum components thanks to its outstanding mechanical and chemical properties.

Our Titanium CF Nipples provide:

• Excellent corrosion resistance
• Low outgassing for cleaner vacuum environments
• High strength with reduced weight
• Excellent oxidation resistance
• Low magnetic permeability
• Long service life under demanding conditions

These advantages make titanium an excellent choice for semiconductor equipment, research laboratories, aerospace testing, and other UHV applications.

Precision TIG Welded Construction:

Every Titanium CF Nipple is manufactured using precision TIG welding to ensure maximum strength and vacuum performance.

Our welding process delivers:

• Full penetration welds
• Smooth internal flow paths
• Excellent concentricity
• Minimal heat distortion
• Stable vacuum sealing performance

Each welded assembly is carefully inspected, and helium leak testing is available upon request to verify leak-tight performance.

Precision Manufacturing:

Flow Wing Metal combines certified titanium materials, advanced CNC machining, precision TIG welding, and strict quality control to manufacture reliable CF nipples for demanding vacuum applications. Optional helium leak testing, dimensional inspection reports, and material certificates are available to meet customer-specific quality requirements.

Applications:

Our Titanium CF Nipples are widely used in:

• Semiconductor manufacturing equipment
• Vacuum coating and deposition systems
• Electron microscopes
• Mass spectrometers
• Particle accelerators
• Aerospace vacuum testing
• Cryogenic equipment
• Scientific laboratories
• Vacuum furnaces
• Surface analysis instruments
• Analytical equipment

Their excellent sealing performance and corrosion resistance make them a reliable choice for critical vacuum systems worldwide.

Custom Manufacturing Services:

Flow Wing Metal provides complete OEM and custom manufacturing solutions for titanium vacuum components.

We can customize:

• Tube diameter and length
• CF flange size
• Wall thickness
• Titanium grade
• Surface finish
• Precision welding assemblies
• Helium leak testing
• Prototype and volume production

Simply send us your drawings or technical specifications, and our engineering team will deliver a solution tailored to your project.

Why Choose Flow Wing Metal?

Flow Wing Metal is dedicated to manufacturing precision titanium vacuum components for customers around the world.

Our advantages include:

• Advanced CNC machining technology
• Professional titanium TIG welding expertise
• Strict quality inspection procedures
• Flexible OEM and custom manufacturing
• Fast prototype development and stable mass production

We are committed to delivering vacuum components that meet the highest standards of quality, precision, and reliability.

Flow Wing Case Study: Custom Titanium CF Nipples for Semiconductor Equipment

A European semiconductor equipment manufacturer required custom Titanium CF Nipples for a next-generation UHV deposition system. The project demanded tight machining tolerances, precision TIG welding, and extremely low helium leak rates.

Flow Wing Metal optimized the machining process and developed dedicated welding fixtures to maintain flange alignment and minimize distortion. Every component was inspected for dimensional accuracy and vacuum integrity before shipment.

The finished CF nipples integrated seamlessly into the customer’s equipment, helping improve assembly efficiency while meeting stringent UHV performance requirements.

Frequently Asked Questions:

1. What is a CF nipple used for?

A CF nipple connects ConFlat flanges in high vacuum and ultra-high vacuum systems while maintaining a reliable metal-to-metal seal.

2. Why choose titanium instead of stainless steel?

Titanium offers lower weight, excellent corrosion resistance, low outgassing, and superior performance in clean UHV environments.

3. Can you manufacture custom CF nipple sizes?

Yes. We provide fully customized Titanium CF Nipples based on customer drawings or international CF standards.

4. Do you offer helium leak testing?

Yes. Helium leak testing and inspection reports are available according to customer requirements.

5. Which titanium grades do you supply?

We commonly manufacture using Grade 2 Titanium and Grade 5 Titanium (Ti-6Al-4V).

6. Which industries use Titanium CF Nipples?

They are widely used in semiconductor manufacturing, aerospace, scientific research, vacuum coating, analytical instruments, and laboratory vacuum systems.

7. Do you support OEM manufacturing?

Absolutely. Flow Wing Metal specializes in OEM and custom production, from prototypes to high-volume manufacturing.

Partner with Flow Wing Metal:

When precision and vacuum reliability matter, Flow Wing Metal delivers dependable Titanium CF Nipples manufactured with advanced CNC machining, precision TIG welding, and rigorous quality control. Whether you need prototypes or large-volume production, our experienced team is ready to provide high-quality vacuum components tailored to your exact requirements.