Durable Circular Sight Glass Fittings for High-Heat Applications

• Customization: Available
• After-sales Service: 1 Year
• Warranty: 1 Year
• Model NO.: Circular Sight Glass Fittings Type 390
• Certification: CE
• Shape: Equal
• Head Code: Round
• Connection: Flange
• Material: Stainless Steel
• Customized Support: OEM, ODM
• Product Name: Flange Sight Glass
• Transport Package: Wooden Box
• Specification: DN15-DN150
• Trademark: LUMIGLAS
• Origin: China
• HS Code: 8481804090
• Package Size: 60.00cm * 60.00cm * 30.00cm
• Package Gross Weight: 10.000kg

Product Description

PRODUCT DETAILS

Our LUMISTAR Type 390 circular sight glass fittings are engineered for welding directly onto or into vessel walls and pipelines, providing clear visual access and illumination of your process medium. Featuring DIN EN 1092-1 Type 11 welding ends, these sight ports integrate seamlessly with standard piping systems.

For processes that exceed 280 °C or involve highly aggressive media (alkalis up to pH 14), optional FEP or mica protective screens bolt onto the fitting to guard against steam and corrosive chemicals. As with all our sightglass lines, the Type 390 can be further customized with SGW-type wipers for maintaining clear views under fouling conditions or integrated lighting modules for enhanced interior illumination.

Technical details
Flange material:	Shape:	Temperature:
Baseflange: 1.4571(factorystandard) Coverflange: 1.4571(factorystandard)	with weldingends accordingto DIN EN 1092-1 type 11	upto280℃withborosilicateglass according or similar toDIN 7080
Othermaterialsonrequest Sight glass:	Nominal size:	Options:
BorosilicateglassDIN 7080or similar	DN 15up to DN 350	Wiper SGW with PTFE or silicone wiper blade LED lights for EX and Non-EX-areas For vacuum applications(Type 390V) with thread connection(Type 392) with pipe connection (Type 391) Stainless-steelperforated plate-impact protection FEPprotectivescreen(forhigherpH-values) Micaprotection (upto320°℃withborosilicate glass DIN 7080) special desginsarepossible depending on environmental variables
Gaskets:	Nominal pressure:
Fiber	PN 16 up to PN 350
PTFE,FKM,NBR,Silicone,EPDM; Graphite; or according to customer requirements
Screws: A4-70
Optionalmaterials: 1.0460/1.4301/1.4307(F304L)/1.4404(F316L)/1.4410(SuperDuplex)/1.4435(F316L)/1.4462(F51)/1.4529(ALloy926) /1.4539(ALloy904L)/1.4541(F321)/1.4547(F44)/1.4550(F347)/1.4571(316Ti)/1.4828/1.4841/1.4876(ALloy800H)/ 1.4878/1.7335/2.4068(ALloy201)/2.4360(ALloy400)/2.4375(ALloyK500)/2.4602(AlloyC-22)/2.4605(Alloy59)/ 2.4610(AlloyC-4)/2.4816(ALloy600)/2.4819(AloyC-276)/2.4856(ALloy625)/2.4858(ALloy825)/3.7035(Titan)
PTFE,FKM,NBR,Silikon,EPDM
or according to customer requirements	Vacuumupto-0,9bar(g)³
Screws:		limited by gasket
A4-70		depending on environmental variables
Optionalmaterials:
1.0460/1.4301/1.4307(F304L)/1.4404(F316L)/1.4410(super Duplex)/1.4435(F316L)/1.4462(F51)/1.4529(Alloy 926) /1.4539(Alloy 904L)/1.4541(F321)/1.4547(F44)/1.4550(F347)/1.4571(316Ti)/1.4828/1.4841/1.4876(Alloy 800H)/ 1.4878/1.7335/2.4068(Alloy 201)/2.4360(Alloy 400)/2.4375(ALloy K500)/2.4602(Alloy C-22)/2.4605(Alloy 59)/ 2.4610(Alloy C-4)/2.4816(Alloy 600)/2.4819(Alloy C-276)/2.4856(Alloy 625)/2.4858(Alloy 825)/3.7035(Titan)

Lumistar Special Glass Technology Co., Ltd. is a professional enterprise that produces safety glass windows and water level gauge glass windows. Our products include DIN7080 safety glass sight glass,DIN7081 water level gauge glass, JIS B8286 pressure vessel sight glass, high-pressure resistant aluminum silicate glass, alkali resistant glass sight glass, alkali resistant water level gauge glass sight glass, sapphire glass sight glass, optical quartz glass, bullet proof glass, and explosion proof glass. We focus on the application of high-tech glass industry and can provide customers with pressure vessel sight glasses, pipeline sight glasses, and various matching explosion-proof spotlights that comply with DIN28120,DIN28121, ASME B16.5,JIS B standards.
Our company has successively won honors such as National High tech Enterprise.Jiangsu Private Science and Technology Enterprise, and Jiangsu Innovative Small and Medium sized Enterprise. It has strong capabilities in the development and innovation of new product technologies. Lumistar's sight glass products are renowned in the industry for their quality and safety performance. Sharp eyed equipment manufacturing companies around the world have recognized one thing: Lumistar's sight glass from Nanjing, China are 100% risk-free ! The various types of glass we produce can withstand the harshest working conditions, whether it is high-temperature and high-pressure steam boilers or various strong acid and alkali chemical environments. Lumistar's glass can easily withstand high temperatures, pressures, and corrosion!

Q1: Do you have a factory?
A1: Yes, we have a factory in Jiangsu. Welcome to visit our company and factory. Weare a professional manufacturer and provide OEM/ODM services to customers.

Q2: Could I get some samples, and how?
A2: No problem, we provide free samples, and it is only needed for you to pay for theshipping charge.

Q3: Can the company customize the specifications we want?
A3: Our company can customize various safety glass sight glasses with high temperature resistance, high pressure resistance, chemical resistance, and excellentthermal shock resistance according to customer needs, and issue EN10204-3.1 or3.2 factory quality certificates, or according to customer needs Invite certificationagencies such as TUV to come and witness the test.Our company can also provideOEM and ODM brands for users, making it convenient for agents from various coun-tries to set up their own glass brands.

Q4: Can you give me some discount?
A4: Usually the discount depends on the quantity. However we can discuss it.

Q5: How do you deliver the qoods?
A5: We can choose suitable sea freight, air freight, and international express deliveryaccording to the customer's needs, andselect the most economical and fastest logis-tics delivery method based on the actual situation of the goods.