KF Elbows 90°: The Standard 90° KF Elbow for Vacuum Systems

Explore the core applications and technical advantages of the ​​KF Elbows 90°: The Standard 90° KF Elbow​​, ideal for semiconductor, electronics, scientific research, and chemical industries. Learn about its precision connection and high-sealing performance solutions.

KF Elbows 90°: The Standard 90° KF Elbow​​ Technical Parameter Table

KF Elbows 90°: The Standard 90° KF Elbow​​ Product Overview

The KF Elbows 90°: The Standard 90° KF Elbow, designed according to the German KF vacuum quick-release flange standard, employs precision molding and a double O-ring sealing design. Its precise 90° angle makes it ideal for modern vacuum equipment with limited installation space, maintaining zero leakage in vacuum environments ranging from -1 to 10^-6 mbar. It is a standard component in semiconductor etching machines and photovoltaic coating machine piping systems.

KF Elbows 90°: The Standard 90° KF Elbow​Core Advantages

1. KF Elbows 90°: The Standard 90° KF Elbow​​ Zero-Leakage Sealing System

A double O-ring structure combined with a stainless-steel bellows compensator ensures a leakage rate of <1×10^-9 mbar·L/s within a wide temperature range of -30°C to 150°C, with a surface machining precision of 0.01mm.

2. KF Elbows 90°: The Standard 90° KF Elbow​​ Multi-Material Options

316L Stainless Steel​​: Suitable for pharmaceutical/food-grade applications

Nickel Alloy​​: Ideal for strong acid/alkali environments

Titanium Alloy​​: Optimized for semiconductor cleanroom environments

3. KF Elbows 90°: The Standard 90° KF Elbow​​ Quick-Connect System

Supports standard KF clamps (28.5mm outer diameter), threaded connections (M20×1.5), and flange interfaces, enabling quick installation and disassembly within 5 minutes for system maintenance.

KF Elbows 90°: The Standard 90° KF Elbow​​ Application Fields

​​Case Study​​: A 12-inch wafer fab replaced traditional elbows with ​​KF Elbows 90°: The Standard 90° KF Elbow​​, reducing vacuum leakage from 1×10^-8 to 5×10^-10 mbar·L/s, lowering maintenance costs by 37%.

​​KF Elbows 90°: The Standard 90° KF Elbow​​ Technical Specifications

Mechanical Properties

KF Elbows 90°: The Standard 90° KF ElbowFrequently Asked Questions ？

1: How does the KF Elbows 90°: The Standard 90° KF Elbow differ from the ISO-KF standard?

 The KF Elbows 90°: The Standard 90° KF Elbowfeatures an optimized corner radius design (R=4×A), reducing turbulence by 23%—ideal for ultra-high vacuum systems.

2: What is the lifespan of the O-ring in the KF Elbows 90°: The Standard 90° KF Elbow?

Under vacuum conditions, the O-ring can last up to 10,000 cycles, with replacement recommended every 2 years or 5,000 cycles.

3: What is the maximum temperature tolerance of the KF Elbows 90°: The Standard 90° KF Elbow?

 Standard configurations support -20°C to 150°C, with high-temperature models (suffix -HT) capable of short-term exposure to 260°C.

4: Can the KF Elbows 90°: The Standard 90° KF Elbow withstand chemical corrosion?

The 316L model resists 10% nitric acid/5% sodium hydroxide solutions, while corrosion-resistant versions feature PTFE-coated surfaces.

5: Is the KF Elbows 90°: The Standard 90° KF Elbow​customizable?

 Precision machining within ±0.5mm of A dimension is available, with optional surface coatings like PTFE or nickel.

6: What is the installation torque for the KF Elbows 90°: The Standard 90° KF Elbow?

 Clamp connections: KF16 (8N·m), KF25 (15N·m), KF40 (25N·m), KF50 (40N·m).

7: How is the roundness of the KF Elbows 90°: The Standard 90° KF Elbow​verified?

Use a coordinate measuring machine (CMM) to ensure φ tolerance ≤±0.05mm (ISO 1101 G1 standard).

8: How should KF Elbows 90°: The Standard 90° KF Elbow

be stored long-term?

 Store in a dry environment (humidity <40%), avoid direct sunlight, and apply silicone grease to O-rings every 6 months.

9: What brands are compatible with the KF Elbows 90°: The Standard 90° KF Elbow?

 Fully compatible with Pfeiffer, Leybold, Edwards vacuum systems, and supports MKS, VAT third-party connectors.

10: What are the future trends for KF Elbows 90°: The Standard 90° KF Elbow?

 Next-gen versions will use nano-coated surfaces, expected to reduce vibration transmission by 60%, enhancing precision in advanced processes.