Products Thermal Equipment Vacuum Accessories KF Ultra-High Vacuum Observation Window 304 Stainless Steel Flange High Borosilicate Glass Sight Glass
KF Ultra-High Vacuum Observation Window 304 Stainless Steel Flange High Borosilicate Glass Sight Glass

Vacuum Accessories

KF Ultra-High Vacuum Observation Window 304 Stainless Steel Flange High Borosilicate Glass Sight Glass

Item Number : KT-VA04

Price varies based on specs and customizations


High borosilicate glass thickness
1~5mm
Working temperature
-200℃ ~ +300℃
ISO & CE icon

Shipping:

Contact us to get shipping details Enjoy On-time Dispatch Guarantee.

Product Application

The KF ultra-high vacuum observation window is an essential component for environments requiring precise observation and control in ultra-high vacuum conditions, typically above 10^-9 Torr. This product is widely used in various high-tech industries and scientific research fields, including:

  • Semiconductor Manufacturing: Ensures clear observation and precise control during the fabrication of semiconductor devices.
  • Vacuum Coating: Facilitates the monitoring of coating processes in vacuum environments.
  • Optical Instruments: Supports the development and maintenance of optical devices requiring ultra-high vacuum conditions.
  • Aerospace: Used in aerospace research and development for observing processes in vacuum chambers.
  • Scientific Research Experiments: Provides reliable observation for various scientific experiments conducted in ultra-high vacuum environments.

Product Feature

Material Excellence

  • High Borosilicate Glass:

    • Low Expansion Coefficient: 3.3 x 10^-6/K ensures minimal distortion under temperature changes.
    • Thermal Stability: Operates effectively in a wide temperature range of -200℃ to +300℃.
    • Chemical Stability: Resistant to acid and alkali corrosion, ensuring long service life.
    • Light Transmittance: Over 92% light transmittance allows for clear observation of the vacuum chamber's interior.
  • 304 Stainless Steel Flange:

    • High Strength: Made from high-quality stainless steel, providing durability and resistance to corrosion.
    • Excellent Sealing: Ensures a stable and reliable vacuum environment by maintaining superior sealing performance.

Detail & Parts

KF high borosilicate observation window

KF high borosilicate observation window

KF high borosilicate observation window

KF high borosilicate observation window

KF high borosilicate observation window

Working Principle

The KF ultra-high vacuum observation window operates by integrating high borosilicate glass with a 304 stainless steel flange. The glass provides a clear view into the vacuum chamber, while the flange ensures a robust and sealed connection. This combination allows for continuous observation and monitoring of processes within the ultra-high vacuum environment without compromising the integrity of the vacuum.

Key Components

  • High Borosilicate Glass: Acts as the observation medium, transmitting light with minimal distortion and resisting thermal and chemical stresses.
  • Stainless Steel Flange: Serves as the structural and sealing element, maintaining the vacuum integrity and supporting the glass securely.

Functionality

  • Observation: The high borosilicate glass allows for clear observation of the vacuum chamber's interior, crucial for monitoring and control.
  • Sealing: The stainless steel flange ensures a tight seal, preventing any air leakage and maintaining the ultra-high vacuum environment.
  • Durability: Both materials are chosen for their durability and resistance to the harsh conditions of ultra-high vacuum environments.

Product Advantage

Reliability in Ultra-High Vacuum

  • Stable Operation: The combination of high borosilicate glass and stainless steel flanges ensures reliable performance in ultra-high vacuum conditions, crucial for sensitive applications.
  • Clear Observation: High light transmittance of the borosilicate glass allows for precise observation and control of processes within the vacuum chamber.

Customization and Ease of Use

  • Multiple Specifications: Offers a range of flange sizes and glass thicknesses to meet diverse application requirements.
  • Easy Installation: Designed to comply with the KF standard, making installation quick and straightforward, and facilitating easy maintenance.

Long-Term Performance

  • Durability: Both materials are chosen for their long service life and resistance to thermal and chemical stresses, ensuring consistent performance over time.
  • Maintenance-Friendly: The KF standard design allows for easy replacement and maintenance, reducing downtime and operational costs.

This KF ultra-high vacuum observation window is designed to meet the stringent demands of high-tech industries and scientific research, providing clear, reliable, and durable observation in ultra-high vacuum environments.

Technical specifications

Model Outer diameter Inner diameter (view diameter) Maximum temperature Thickness Material
KF 25 40mm 23mm 350℃ 15.5mm 304 stainless steel + Borosilicate
KF 40 55mm 20mm 15.5mm
KF 50 75mm 34mm 16mm
View more faqs for this product

4.7

out of

5

Outstanding clarity and durability. Perfect for our semiconductor research needs.

Hiroshi Tanaka

4.8

out of

5

Exceptional quality and value. The glass is incredibly clear even in low light conditions.

Elena Petrova

4.9

out of

5

Fast delivery and excellent customer service. The product exceeded our expectations.

Carlos Mendes

4.7

out of

5

Highly durable and reliable. Ideal for our vacuum coating processes.

Lina Svensson

4.8

out of

5

Clear observation and easy installation. A must-have for our optical instrument development.

Rajesh Patel

4.9

out of

5

Top-notch quality and perfect for aerospace research. The glass is incredibly strong and clear.

Sophie Dubois

4.7

out of

5

Great value for money. The stainless steel flange is robust and ensures a tight seal.

Andrei Ivanov

4.8

out of

5

Excellent product for scientific experiments. The glass provides a perfect view of our processes.

Miguel Lopez

4.9

out of

5

Superb clarity and durability. The product is a game-changer for our semiconductor manufacturing.

Anita Choudhury

4.7

out of

5

Reliable and easy to install. The glass is incredibly clear and resistant to thermal stress.

Emma Johnson

4.8

out of

5

High-quality product with excellent light transmittance. Perfect for our vacuum coating needs.

Hans Müller

4.9

out of

5

Outstanding performance in ultra-high vacuum conditions. The glass is incredibly clear and durable.

Yuki Nakamura

PDF - KF Ultra-High Vacuum Observation Window 304 Stainless Steel Flange High Borosilicate Glass Sight Glass

Download

Catalog of Vacuum Accessories

Download

REQUEST A QUOTE

Our professional team will reply to you within one business day. Please feel free to contact us!

Related Products

CF Ultra-High Vacuum Observation Window Window Flange High Borosilicate Glass Sight Glass

CF Ultra-High Vacuum Observation Window Window Flange High Borosilicate Glass Sight Glass

Discover CF ultra-high vacuum observation window flanges with high borosilicate glass, perfect for semiconductor manufacturing, vacuum coating, and optical instruments. Clear observation, durable design, easy installation.

CF Ultra-High Vacuum Observation Window Stainless Steel Flange Sapphire Glass Sight Glass

CF Ultra-High Vacuum Observation Window Stainless Steel Flange Sapphire Glass Sight Glass

Discover CF ultra-high vacuum observation windows with sapphire glass and stainless steel flanges. Ideal for semiconductor manufacturing, vacuum coating, and more. Clear observation, precise control.

MgF2 magnesium fluoride crystal substrate / window

MgF2 magnesium fluoride crystal substrate / window

Magnesium fluoride (MgF2) is a tetragonal crystal that exhibits anisotropy, making it imperative to treat it as a single crystal when engaging in precision imaging and signal transmission.

Optical ultra-clear glass sheet for laboratory K9 / B270 / BK7

Optical ultra-clear glass sheet for laboratory K9 / B270 / BK7

Optical glass, while sharing many characteristics with other types of glass, is manufactured using specific chemicals that enhance properties crucial for optics applications.

Optical Windows

Optical Windows

Diamond optical windows: exceptional broad band infrared transparency, excellent thermal conductivity & low scattering in infrared, for high-power IR laser & microwave windows applications.

barium fluoride (BaF2) substrate / window

barium fluoride (BaF2) substrate / window

BaF2 is the fastest scintillator, sought-after for its exceptional properties. Its windows and plates are valuable for VUV and infrared spectroscopy.

CaF2 substrate / window / lens

CaF2 substrate / window / lens

A CaF2 window is an optical window made of crystalline calcium fluoride. These windows are versatile, environmentally stable and resistant to laser damage, and they exhibit a high, stable transmission from 200 nm to about 7 μm.

Single and double-sided coated glass sheet/K9 quartz sheet

Single and double-sided coated glass sheet/K9 quartz sheet

K9 glass, also known as K9 crystal, is a type of optical borosilicate crown glass renowned for its exceptional optical properties.

2200 ℃ Tungsten vacuum furnace

2200 ℃ Tungsten vacuum furnace

Experience the ultimate refractory metal furnace with our Tungsten vacuum furnace. Capable of reaching 2200℃, perfect for sintering advanced ceramics and refractory metals. Order now for high-quality results.

2200 ℃ Graphite Vacuum furnace

2200 ℃ Graphite Vacuum furnace

Discover the power of the KT-VG Graphite Vacuum Furnace - with a maximum working temperature of 2200℃, it's perfect for vacuum sintering of various materials. Learn more now.

High temperature resistant optical quartz glass sheet

High temperature resistant optical quartz glass sheet

Discover the power of optical glass sheets for precise light manipulation in telecommunications, astronomy, and beyond. Unlock advancements in optical technology with exceptional clarity and tailored refractive properties.

Alkali-free / Boro-aluminosilicate glass

Alkali-free / Boro-aluminosilicate glass

Boroaluminosilicate glass is highly resistant to thermal expansion, making it suitable for applications that require resistance to temperature changes, such as laboratory glassware and cooking utensils.

Stainless High Pressure Reactor

Stainless High Pressure Reactor

Discover the versatility of Stainless High Pressure Reactor - a safe and reliable solution for direct and indirect heating. Built with stainless steel, it can withstand high temperatures and pressures. Learn more now.

High borosilicate glass stirring rod/flow diversion laboratory glass rod resistant to high temperature

High borosilicate glass stirring rod/flow diversion laboratory glass rod resistant to high temperature

Used in chemical experiments, a glassy thin and long rod-shaped simple stirrer, also known as a glass rod.

Molybdenum Vacuum furnace

Molybdenum Vacuum furnace

Discover the benefits of a high-configuration molybdenum vacuum furnace with heat shield insulation. Ideal for high-purity, vacuum environments like sapphire crystal growth and heat treatment.

Lifting/tilting Glass Reactor

Lifting/tilting Glass Reactor

Enhance your synthetic reactions, distillation, and filtration processes with our lifting/tilting glass reactor system. With a wide range of temperature adaptability, accurate stirring control, and solvent-resistant valves, our system guarantees stable and pure results. Explore the features and optional functions today!

PTFE flask/PTFE three-necked flask/PTFE round bottom flask

PTFE flask/PTFE three-necked flask/PTFE round bottom flask

PTFE flask, is a versatile laboratory container made from polytetrafluoroethylene (PTFE), offering exceptional chemical resistance, temperature stability, and non-stick properties. Ideal for handling corrosive substances and high-temperature applications, these flasks are essential in various laboratory procedures, including heating, mixing, and storage of chemicals.

1400℃ Controlled atmosphere furnace

1400℃ Controlled atmosphere furnace

Achieve precise heat treatment with KT-14A controlled atmosphere furnace. Vacuum sealed with a smart controller, it's ideal for lab and industrial use up to 1400℃.

Vacuum furnace with ceramic fiber liner

Vacuum furnace with ceramic fiber liner

Vacuum furnace with polycrystalline ceramic fiber insulation liner for excellent heat insulation and uniform temperature field. Choose from 1200℃ or 1700℃ max. working temperature with high vacuum performance and precise temperature control.

Vacuum hot press furnace

Vacuum hot press furnace

Discover the advantages of Vacuum Hot Press Furnace! Manufacture dense refractory metals & compounds, ceramics, and composites under high temp and pressure.

PTFE volumetric flask/strong acid and alkali resistant, high temperature resistant, corrosion resistant

PTFE volumetric flask/strong acid and alkali resistant, high temperature resistant, corrosion resistant

The PTFE Volumetric Flask, a robust alternative to glass and PP flasks, excels in measuring both acidic and alkaline liquids. Characterized by its chemical inertness, translucency, and wide volume options, this flask ensures a non-leachable, ultra-clean background. Its non-stick surface simplifies cleaning and maintenance, making it ideal for harsh laboratory conditions.

Split chamber CVD tube furnace with vacuum station CVD machine

Split chamber CVD tube furnace with vacuum station CVD machine

Efficient split chamber CVD furnace with vacuum station for intuitive sample checking and quick cooling. Up to 1200℃ max temperature with accurate MFC mass flowmeter control.

High pressure tube furnace

High pressure tube furnace

KT-PTF High Pressure Tube Furnace: Compact split tube furnace with strong positive pressure resistance. Working temp up to 1100°C and pressure up to 15Mpa. Also works under controller atmosphere or high vacuum.

Vacuum arc furnace Induction melting furnace

Vacuum arc furnace Induction melting furnace

Discover the power of Vacuum Arc Furnace for melting active & refractory metals. High-speed, remarkable degassing effect, and free of contamination. Learn more now!

1700℃ Controlled atmosphere furnace

1700℃ Controlled atmosphere furnace

KT-17A Controlled atmosphere furnace: 1700℃ heating, vacuum sealing technology, PID temperature control, and versatile TFT smart touch screen controller for laboratory and industrial use.

Explosive Proof Hydrothermal Synthesis Reactor

Explosive Proof Hydrothermal Synthesis Reactor

Enhance your lab reactions with Explosive Proof Hydrothermal Synthesis Reactor. Corrosion-resistant, safe, and reliable. Order now for faster analysis!

2L Short Path Distillation

2L Short Path Distillation

Extract and purify with ease using our 2L short path distillation kit. Our heavy-duty Borosilicate glassware, fast heating mantle, and delicate fitting device ensure efficient and high-quality distillation. Discover the advantages today!

PTFE measuring cylinder/high temperature resistant/corrosion resistant/acid and alkali resistant

PTFE measuring cylinder/high temperature resistant/corrosion resistant/acid and alkali resistant

PTFE cylinders are a rugged alternative to traditional glass cylinders. They are chemically inert over a wide temperature range (up to 260º C), have excellent corrosion resistance and maintain a low coefficient of friction, ensuring ease of use and cleaning.

PTFE digestion tank/microwave digestion tank/reactor

PTFE digestion tank/microwave digestion tank/reactor

PTFE digestion tanks are renowned for their exceptional chemical resistance, high-temperature stability, and non-stick properties. These tanks are ideal for harsh laboratory environments, Their low coefficient of friction and inert nature prevent chemical interactions, ensuring purity in experimental results.

Laboratory ITO/FTO conductive glass cleaning flower basket

Laboratory ITO/FTO conductive glass cleaning flower basket

PTFE cleaning racks are mainly made of tetrafluoroethylene. PTFE, known as the "King of Plastics", is a polymer compound made of tetrafluoroethylene.

CVD boron doped diamond

CVD boron doped diamond

CVD boron-doped diamond: A versatile material enabling tailored electrical conductivity, optical transparency, and exceptional thermal properties for applications in electronics, optics, sensing, and quantum technologies.

Silicon Carbide (SIC) Ceramic Sheet Flat / Corrugated Heat Sink

Silicon Carbide (SIC) Ceramic Sheet Flat / Corrugated Heat Sink

Silicon carbide (sic) ceramic heat sink not only does not generate electromagnetic waves, but also can isolate electromagnetic waves and absorb part of electromagnetic waves.

ITO/FTO glass storage rack/turnover rack/silicon wafer storage rack

ITO/FTO glass storage rack/turnover rack/silicon wafer storage rack

ITO/FTO glass storage rack/turnover rack/silicon wafer storage rack can be used for the shipment packaging, turnover and storage of silicon wafers, chips, germanium wafers, glass wafers, sapphire wafers, quartz glass and other materials.

Hydrothermal Synthesis Reactor for Polytetrafluoroethylene Carbon Paper and Carbon Cloth Nano-growth

Hydrothermal Synthesis Reactor for Polytetrafluoroethylene Carbon Paper and Carbon Cloth Nano-growth

Acid and alkali resistant polytetrafluoroethylene experimental fixtures meet different requirements. The material is made of brand new polytetrafluoroethylene material, which has excellent chemical stability, corrosion resistance, airtightness, high lubricity and non-stickiness, electrical corrosion and good anti-aging ability, and can work for a long time at temperatures from -180℃ to +250℃.

CVD Diamond coating

CVD Diamond coating

CVD Diamond Coating: Superior Thermal Conductivity, Crystal Quality, and Adhesion for Cutting Tools, Friction, and Acoustic Applications

XRF Spectrometer Module

XRF Spectrometer Module

Scientific In-line XRF Spectrometer Module series can be flexibly configured, and can be effectively integrated with robotic arms and automatic devices according to the layout and actual situation of the factory production line to form an efficient detection solution that meets the characteristics of different samples.