USA vacuum viewports Keywords

chambers mechanical feedthroughs fittings, flanges vacuum components America Asia Pacific Europe

Pfeiffer Vacuum Viewports Pfeiffer Vacuum Inc. -
- 24 Trafalgar Square, Nashua NH 03063-1988, USA

email:, Tel. +1 (800) 248-8254

Pfeiffer Vacuum is a vacuum technology world leader for more than 130 years: an important milestone was the invention of the turbopump in our company more than 50 years ago. Our comprehensive range of solutions, products and services includes vacuum pumps, measurement and analysis equipment, up to complex vacuum systems.
products: Viewports
  • ISO-KF, ISO-K, ISO-F, CF Viewports,   CF Shutter
  • ISO-KF, ISO-K, CF Glass Retainers, Glasses for Retainers
  • Sightglasses are mainly used to visually observe processes. They can, however, also be used for the specific transfer of electromagnetic waves. For this, the transmission and the optical quality of the glasses should be considered.
  • We provide suitable types of glass combined with various types of vacuum flange to suit your specific application.

Accu-Glass Viewports Accu-Glass Products, Inc. - www.
- 700 Arroyo Ave., San Fernando, CA 91340, USA

email, Tel.
products: In-Vacuum Viewports for High and Ultra High vacuum systems

ANCORP Viewports ANCORP - www.
- 707 Southwest 19th Avenue, Williston, FL 32696, USA

email, Tel.

A&N Corporation is located in a 40,000 square foot, state-of-the-art manufacturing facility in Williston Florida. A&N staffs over 100 people all committed to the corporate motto: "Striving for perfection. Achieving excellence!" With 40 years of experience, A&N matches the unsurpassed quality of their vacuum components with a high level of customer service rarely seen in this industry. A&N specializes in the manufacturing, polishing, cleaning, packing, storage and shipping of high and ultra-high vacuum components. A&N produces the highest quality vacuum components for national laboratories, colleges and universities and original equipment manufacturers.
products: viewports
  • Viewports: available in a variety of window materials (glass, pyrex, and fused quartz) and flange styles.
  • Fixed viewports: The window is sealed with a transition material is known as KOVAR®. The ultimate pressure rating of these viewports is determined by the flange style.
  • Weldable viewports: The window material (pyrex or quartz) is replaceable. The window material is captured between a pair of sealing Viton® rings.
  • Add-a-doors: Add-a-doors bolt onto an existing standard flange port on your chamber and can function as a viewing window as well as an access point for your system.

- One Technology Place, SC 29360 Laurens, USA

Jason MARLIN, email, Tel.

company profile:
The world leader in the manufacturing of ceramic-to-metal and glass-ceramic sealed electrical and optical components for the vacuum industry.
products: viewports

CeramTec's precision-engineered standard viewports and extended range viewports are available in a variety of viewport materials: Sapphire, Fused Silica, BK7, Zinc Selenide, Cleartran? Magnesium Fluoride, and Calcium Fluoride. Other viewport materials are available upon request.
An extended range transmission port is an optical component that provides for transmission of radiation in either the ultra violet or infrared portion of the electromagnetic spectrum. Standard viewports made of either fused silica or sapphire have useful transmission from .25 microns to 2.5 or 4.0 microns respectively. Extended range window materials have a combined transmission range from .12 microns to 20.0 microns.

Encole Encole LLC - www.
- 135 Rio Robles East, San Jose, CA 95134, USA

email, Tel.

Encole LLC is a manufacturer of sight glasses and an engineering development company.
products: ConFlat, CF Sight Glass, KF Sight Glasses

Conflat sight windows for ultra-high vacuum. Housing is designed to ISO 3699 connections.
  • This KF sight glass is designed for vacuum hygienic applications. It is simple to install with no risk of breakage. This is a single-piece part ideal for use on food processing equipment (A3-Standard).
  • The housing is made from stainless steel or Hastelloy, with a material certificate traceable to the steel manufacturer. The sight glass is fused to the metal conforming to DIN 7079 where the glass is Borosilicate per DIN 7080.
  • These sights are sealed to the process vessel with an elastomer gasket. Use standard KF clamps to mount the sight windows to the process vessel. For hygienic applications use Tri Sanitary Clamps. KF sight glasses are manufactured to high tolerances with electropolished metal surfaces for improved cleanliness.

Guild Optical Guild Optical Associates, Inc. - www.
- 11 Columbia Drive, Amherst, NH 03031, USA

Jon Lavoie, email, Tel.

Guild Optical Associates has been a leader in sapphire pressure windows manufacturing for over 24 years.   Our expertise in custom sapphire optical windows allows us to offer great pricing on pressure and vacuum windows.
products: Sapphire Pressure Windows and Vacuum Windows
  • Sapphire pressure windows are ideal for high stress applications due to the extremely durable properties of sapphire
  • Sapphire should be your first choice for ultra high vacuum chamber windows
  • UHV sapphire viewports can be designed much thinner than viewports made from other materials allowing for optimal observation
  • Add in Guild Optical's precision flat polishing capabilities and you can have a near perfect optical transmission
Pressure windows made of glass need to be made very thick to avoid failure. Generally the thicker the material the greater the cost. Because our sapphire pressure windows and vacuum windows are much stronger than glass, less material is needed, and material costs can be lower in some cases. Guild Optics is also able to offer great pricing on our pressure windows due to our sapphire buying power.

Larson Electronic Glass Vacuum Viewports Larson Electronic Glass - www.
- 2840 Bay Road, Redwood City, CA 94063, USA

email, Tel.
products: viewports

Larson Electronic Glass offers viewports in a variety of sizes and materials. The industry standard is the Zero-Length glass viewport in a CF type flange. Other options include the "non-magnetic" viewport which is sealed to a stainless steel sleeve, and Quartz and Sapphire viewports.
Viewports are available in CF, Kwik or Large vacuum flanges. Kovar "standard" and Stainless steel "non-magnetic" viewports are available with or without vacuum flanges.
Viewport options and products include: Antireflective Coatings and Lead Glass Shields for X-ray. We also offer repair services for flange mounted viewports.

Lesker Vacuum Viewports Kurt J Lesker Company -
- 1515 Worthington Avenue, Clairton, PA 15025, USA

email, Tel.

The Kurt J. Lesker Co. was founded in 1954 as a manufacturers' representative for vacuum products in Pittsburgh PA, USA. Today, we are an international manufacturer and distributor of vacuum components and vacuum systems for research and industrial applications.
products: viewports

Viewports are observation windows installed on vacuum chambers or systems allowing the operator to view a vacuum process, to initiate chemical or physical action using specific electromagnetic wavelengths, or to make measurements of light wavelengths. The window of the viewport allows transmission of light waves, from ultraviolet to infrared light, depending on the material used.

Meller Optics Meller Optics, Inc. - www.
- 120 Corliss St, Providence, RI 02904, USA

email, Tel.
products: Sapphire Viewport Windows

Custom engineered and fabricated sapphire viewport windows that can be metalized, brazed and sealed into Kovar® and stainless steel sleeves are available from Meller Optics, Inc. of Providence, Rhode Island.

Meller Sapphire Viewport Windows feature Moh 9 hardness, which is second only to diamond, and can operate from UHV to 10,000 psi at temperatures from cryogenic to 1,000°C, depending upon configuration. Custom fabricated to assure a reliable seal, they are manufactured to specification with stepped edges and elliptical edge shaping, holes, slots, and wedges for mounting.

Available in flat and spherical configurations from 1/4" to 10" dia. and 1/2 mm to 1" thick with A/R coatings, Meller Sapphire Viewport Windows feature flatness of 0.5 fringes HeNe and parallelism from 20 to 2 arc/secs. Resistant to chemicals (fluorine to 300°C) and most acids, these sapphire viewports are impervious to water, blowing dirt, and sand.

- 6557 Cochran Road, Solon OH 44139, USA

Jim Dicillo, email, Tel.

Manufactures custom optical products, specializing in optical crystals.
products: Vacuum viewports on standard conflat flanges

Window materials include, but are not limited to: Calcium Fluoride, Magnesium Fluoride, Barium Fluoride, Lithium Fluoride, KBr, KCl, ZnSe, CsI, and Ge. Fluoride viewports are bakeable to 550F. All others to 250F

Rayotek Sight Windows Rayotek Sight Windows - www.
- 11495 Sorrento Valley Road, San Diego CA 92121, USA

email, Tel.

Rayotek Sight Windows is a subsidiary of Rayotek Scientific, Inc.
products: ConFlat (CF) Sight Windows

CF (ConFlat™) flange sight windows are used for clean, ultra high vacuum and low pressure applications. Designed specifically for applications where cleanliness, chemical resistance and/or process control are critical. The window material is fused or bonded to a stainless steel housing forming a hermetically sealed single-piece part. The advantage of this construction is a simple, clean, easy to install sight window.




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