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Home > Products > Infrared Thermometers & Pyrometers > Accessories for Infrared Thermometers & Pyrometers > KF40 Flange for Infrared Temperature Measurement in Vacuum
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KF40 Flange for Infrared Temperature Measurement in Vacuum

Reliable Vacuum Insulation with Infrared Optical Window for Non-Contact Temperature Measurements in Vacuum Environments

KF40 Flange for Infrared Temperature Measurement in Vacuum
KF40 Flange for Infrared Temperature Measurement in Vacuum

The KF40 Flange is important for connecting infrared temperature sensors to vacuum systems that operate down to 10^-7 mbar. KF flanges, also known as NW, QF, or DN flanges, are ISO-standard vacuum fittings. They create a vacuum seal by compressing a rubber O-ring between two surfaces. These flanges are popular because they are easy to use, maintain, and reuse, which makes them great for quickly assembling vacuum systems. With sturdy construction and reliable vacuum isolation, they work well with standard interfaces. This provides a trustworthy solution for precise temperature measurements in vacuum environments. The KF40 Flange helps keep the vacuum system intact by effectively isolating the sensor, which is essential for high-quality, accurate applications.

  • Seals reliable down to 10^-7 mbar
  • Various infrared windows
  • Made in stainless steel

From 160,00€

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Product Description

The KF40 Flange is essential for integrating infrared temperature sensors into vacuum systems down to 10^-7 mbar. Also known as NW, QF, or DN flanges, these ISO-standardized fittings create a vacuum seal with a rubber O-ring. Valued for ease of use, maintenance, and reusability, KF flanges are ideal for quick assembly. The KF40 ensures system integrity by isolating the sensor, ensuring precise measurements.

Specification

General Specifications

  • Storage temperature: 0 °C to 70 °C
  • Material: stainless steel

Materials / Combinations

    Available in the following material versions:

  • Germanium – for LT, G7, P7
  • Silicon – for 4M
  • Borofloat – for 05M, 08M, 1M

Transmission

  • Germanium: 0.92 (LT)
  • Silicon: ~ 0.90 (4M)
  • Borofloat – 0.92 (1M/ 2M/ 3M)

The shown values are standard and may vary between different delivery batches.

Operating Temperature

  • Germanium: <100 °C
  • Silicon: <200 °C
  • Borofloat: < 200 °C
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FAQs

What are the best practices for maintaining and ensuring the optimal performance of O-rings in a KF system?

To achieve optimal performance in a KF system, apply a very thin layer of vacuum grease to any O-ring. This should be done manually while wearing gloves, ensuring just enough grease is used to create a shine on the O-ring. Before installation, visually inspect the O-ring and its mating surfaces to ensure they are debris-free, which could prevent proper contact and cause leaks. Regularly inspect O-rings for signs of dry rot, cracking, tearing, or debris accumulation from normal operation. Replace any O-ring that is suspected of causing a leak.

Are there any certificates or approvals for the KF40 Flange?

Optris can provide test reports from external certifiers.

Scope of Supply
  • 1x KF40 flange with infrared window
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