Vacuum Welded Viewport Flange Sight Glass Viewport for Vacuum System

• Customization: Available
• Standard: ANSI, DIN, GB, JIS
• Type: Welding Flange
• Material: SS304/316
• Structure: Flanges
• Connection: Flanged
• Manufacturing Way: Forging
• Pressure: Ultra-High Vacuum
• Surface Treatment: Polishing
• OEM: Accpet
• Transport Package: in Carton, Wooden Case
• Specification: Outer diameter 87mm/Inner diameter 63mm
• Origin: Jiangsu
• HS Code: 7307210000
• Production Capacity: 100000+
• Package Size: 60.00cm * 60.00cm * 40.00cm
• Package Gross Weight: 5.000kg

Product Description

Customized KF Viewport KF16  KF25 KF40 KF50 Sight Glass for Ultra High Vacuum System

KF vacuum observation window, also known as vacuum window, is an optical feedthrough, mainly used to monitor the production situation inside the vacuum container, such as observing the temperature, sample state, etc., or to transmit light source. This observation window is crucial for monitoring the production situation inside the vacuum, especially in scientific research, material science, physical experimental research, chemical experimental research, biological research, industrial production and other fields.

Application scope: 

It is generally used in vacuum systems to observe the internal conditions of the vacuum chamber, and can grasp the changes inside the vacuum system in time. 
Materials:

low magnetic stainless steel 304 welded flange, 4J29 alloy, optical glass, etc. 
Process :

glass metal sealing process is adopted, and the common KF series flange is used. 

Technical Specifications

(Other sizes can be customized according to drawings.)

Product model	KF50
Product vacuum degree	1×10^(-12)pa/m3
Flange material	304/316
Glass material	Borosilicate/Quartz/Sapphire/Barium Fluoride/Calcium Fluoride/Zinc Selenide/
Surface quality	60/40 50/20 20/10
Optical surface type	1/2λ-1/10λ
Visible diameter (mm)	63
Heat resistance range	-50-230℃
Surface treatment	Electrolytic polishing
Transmittance	1.45-1.76
Outer diameter (mm)	87
Inner diameter (mm)	63
Product Height(mm)	49
Glass thickness	6

Multi system certification

Having over 10 invention patents More than 50 utility model patents

Industry Users

Company Profile

Lumistar Special Glass Technology Co., Ltd.

Lumistar Special Glass Technology Co., Ltd. is a national high-tech enterprise mainly engaged in the research and development, design, manufacturing, and processing of various types of ultra-high pressure glass windows and safety protection equipment, including high temperature and high pressure glass, ultra-high pressure glass tubes, ultra-high pressure glass mirrors, ultra-low temperature glass, oil well ultra-high pressure glass blasting discs, sapphire glass, microcrystalline ceramic glass, pipeline mirrors, pressure vessel mirrors, high vacuum observation windows, ultra-high pressure alkali resistant mica glass mirrors, high pressure level gauge aluminum silicon glass, explosion-proof spotlights, bulletproof and explosion-proof glass, sintered mirrors, bulletproof security posts, and bulletproof transparent materials.

FAQ

Q:  Do you have a factory?
A: Yes, we have a factory in Jiangsu. Welcome to visit our company and factory. We are a professional manufacturer and provide OEM/ODM services to customers.

Q: Could I get some samples, and how?
A: No problem, we provide free samples, and it is only needed for you to pay for the shipping charge.

Q: Can the company customize the specifications we want? 
A: Our company can customize various safety glass sight glasses with high temperature resistance, high pressure resistance, chemical resistance, and excellent thermal shock resistance according to customer needs, and issue EN10204-3.1 or 3.2 factory quality certificates, or according to customer needs Invite certification agencies such as TUV to come and witness the test.Our company can also provide OEM and ODM brands for users, making it convenient for agents from various countries to set up their own glass brands.

Q: Can you give me some discount?
A: Usually the discount depends on the quantity. However we can discuss it.

Q: How do you deliver the qoods?
A:We can choose suitable sea freight, air freight, and international express delivery according to the customer's needs, andselect the most economical and fastest logistics delivery method based on the actual situation of the goods