DIN28120 Sight Glass for Pressure Vessels Borosilicate Glass High Temperature & Corrosion Resistance

• Customization: Available
• Standard: ANSI, DIN, GB, JIS, GOST, BSW, Customization
• Type: Welding Flange
• Material: Stainless Steel
• Structure: Round
• Connection: Welding
• Sealing Surface: RF
• Manufacturing Way: Forging
• Connecting Sizes: Pn 10DN 50 to DN 200
• Application: Pressure Vessels, Tanks, Silos, etc.
• Pressure: 10 Bar-16 Bar
• Temperature: 200°c
• Combination: for Use with Spotlights in Explosion Proof
• Certificate: CE/ISO9001/ISO14001/Ej/T9001/Gjb9001c
• Transport Package: in Carton, Wooden Case
• Specification: Customized
• Origin: Jiangsu
• Production Capacity: 100000+

Product Description

DIN28120 Pressure Vessel Sight Glass - Customized by Lumistar, a Safe and Compliant Choice

The sight glass is welded using a circular flange chuck according to DIN 28120. The upper and lower flanges are fastened with bolts, and the mirror lens and sealing gasket are placed in sequence in the middle. Its structure and dimensions comply with the design criteria of DIN 28120, DN 50~DN200. The flange strength according to this standard size can ensure that the mirror lenses in storage are not damaged or deformed. The premise is to weld the flange block according to the regulations.

Lumistar Solution: Safe, compliant, and durable

As a national high-tech enterprise, Lumixing is deeply engaged in the manufacturing of special glass and has developed pressure vessel sight glasses that meet the DIN28120 standard to accurately solve the above-mentioned problems.

Endorsement of Lumistar's Strength
Fully qualified: Passed 10+authoritative certifications including ISO 9001, Nuclear Industry Quality Management System (EJ/T9001), Weapon and Equipment Management System (GJB/T9001C), etc;
Global recognition: Our products have been exported to over 150 countries, serving international brands such as Siemens, Panasonic, and Bayer, with a cumulative delivery of over 100000 zero safety incidents;
One stop service: providing drawing design, third-party testing (TUV/BV), full chain support for warehousing and logistics, and 72 hour fast sampling.

Applications

Used for observing iron drums, circular silos, mixers, separators, pipelines, etc.

Key Configurations

Connecting sizes: PN 10DN 50 to DN 200
Application: For viewing of internals of pressure vessels, tanks, silos, stirred
 vessels, separators pipelines etc.
Pressure: 10 bar-16 bar
Temperature: max. 200°C with borosilicate glass DIN 7080
 higher temperatures on request
Combination: For use with Lumistar spotlights in explosion proof and non-explosion proof areas. Matching threaded apertures are provided on the flange for fixing the spotlight.
Certificates/testing: Depending on customer requirements and at extra cost, can be provided to DIN EN 10204 3.1/3.2

Technical Specifications

DIN 28120 Product Performance
Connecting sizes:	PN 10DN 50 to DN 200
Application:	For viewing of internals of pressure vessels, tanks, silos, stirred
	vessels, separators pipelines etc.
Pressure:	10 bar-16 bar
Temperature:	max. 200°C with borosilicate glass DIN 7080
	higher temperatures on request
Combination:	For use with Lumistar spotlights in explosion proof and non-explosion proof areas. Matching threaded apertures are provided on the flange for fixing the spotlight.
Certificates/testing:	Depending on customer requirements and at extra cost, can be
	provided to DIN EN 10204 3.1/3.2

We can customize according to customer needs.

Component materials shown in adjoining exploded view are
Item	part	material
1	base flange(welding flange )	carbon steel S235JR+N(RSt 37-2),stainless steel or other
2.1,2.2	fastening bolts	carbon steel 5.6/5 or stainless steel A2
3.1,3.2	gaskets	KLINGERSil C-4400; silicone,PTFE or other
4	sight glass disc	-sodalime glass:
		toughened DlN 8902
		-borosilicate glass:
		toughened DlN 7080
5	cover flange	carbon steelS235JR+N(RSt 37-2)
		stainless steel 1.4541 or other
6	vesel wall

Dimensions for Lumiglas sight glass fitting, circular, DIN 28120/PN 10/16 or similar DIN 28120

size		1	2	3	4	5	6
Nominal width	DN	50	80	100	125	150	200
Pressure resistance (bar)	PN	10/16	10/16	10/16	10/16	10/16	10
viewing diameter	d1	80	100	125	150	175	225
sight glass disc	d3	100	125	150	175	200	250
	s	15/15	15/20	20/25	20/25	25/30	30
flanges	D	165	200	220	250	285	340
	K	125	160	180	210	240	295
	d6	18	18	18	18	22	22
	h1	16/16	20/20	22/22	25/25	30/30	35
	h2	30	30	30	30	36	36
fastening bolts	no.	4	8	8	8	8	8
	size	M16	M16	M16	M16	M20	M20
Sealing gasket	d1	80	100	125	150	175	225
	d7	102	127	152	177	202	252
Bolt torque	Nm	28/32	20/23	26/30	32/34	47/54	63

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