American Standard Straight Through Sight Glass ASME/ANSI Compliant, Borosilicate Glass, 15MPa & 500° C Resistant ISO/CE Certified for Oil & Gas Pipelines

• Customization: Available
• After-sales Service: 1year
• Warranty: 1year
• Model NO.: American Standard Straight Through Sight Glass
• Certification: CE, ISO9001/ISO14001/Ej/T9001/Gjb9001c
• Shape: Other
• Head Code: Other
• Connection: Welding
• Material: Stainless Steel
• Flange Connections: Conform to ANSI-150/300lb
• Operating Pressure: 16 Bar at 150 Lbs/40 Bar at 300 Lbs
• Operating Temperature: 150°c or 280°c
• Installation Position: Anypay Attention to The Flow Direction
• Glass: DIN 7080 /DIN 8902
• Seals: Graphite, ( or as Desired )
• Transport Package: in Carton, Wooden Case
• Specification: Based on customer needs
• Trademark: LUMIGLAS
• Origin: Jiangsu
• Production Capacity: 100000+

Product Description

American Standard Straight Through Sight Glass | ASME/ANSI B16.5 Compliant, 15MPa & 550°C Resistant 

In U.S. and global markets requiring strict ASME/ANSI compliance, engineers face critical issues when selecting sight glasses for high-risk applications:
 
Non-standard flanges causing installation mismatches and safety audit failures.
Glass failure under extreme conditions (e.g., H2S corrosion, 500°C thermal cycling).
Seal leakage in high-pressure hydrocarbon systems, risking environmental hazards.
Slow customization for large-diameter pipelines (e.g., 24" ANSI flanges).
 
Lumistar's Robust Solution:
Our ASME-Compliant Straight Through Sight Glass is engineered to meet rigorous U.S. operational standards while maximizing durability and safety:
 
ASME/ANSI Compliance & Precision
Standards: Fully compliant with ASME B16.5, B16.47, and ANSI B31.3 for seamless integration into U.S. pipeline networks.
Flange Range: 1/2" to 24" (DN15–DN600) | Pressure classes: 150# to 2500#.
Material Traceability: 316L stainless steel flanges (ASTM A240) with Ra ≤0.8μm finish, paired with borosilicate glass (ASTM E438 Type I).
 
Extreme Performance Reliability
Temperature Resistance: -60°C to +550°C, tested for 1,000+ thermal shock cycles.
Pressure Capacity: 15MPa (2,175 psi) hydrostatic rating, 4x safety margin.
Corrosion Resistance: NACE MR0175 compliant for sour gas (H2S) environments.
 
Leak-Proof & Safety-Centric Design
Dual sealing with spiral-wound PTFE gaskets + flexible graphite layers.
Fire-safe API 607 certification for flammable fluid applications.
Optional argon purging to eliminate fogging in humid conditions.
 
Customization & Support
24-hour CAD drawing turnaround for custom flange/glass dimensions.
48-hour expedited production for urgent refinery shutdown projects.
 

Applications

Flange connections conform to ANSI-150/300LB

Use:For visual inspection of filling and flow in pipelines. Lumistar sight glasses enable reliable monitoring of the function and performance of individual devices as well as entire systems. The standard drip nose also indicates even the smallest flow rates.

Key Configurations

Operating pressure: 16 bar at 150 lbs

                                    40 bar at 300 lbs
Operating Temperature: 150°C or 280°C

Installation position:

anyPay attention to the flow direction

Special versions:

with - rotor or flap
- Heating jacket
- Sight Glass Lights

Technical Specifications

(Other sizes can be customized according to drawings.)

Size range (mm)	25, 40, 50, 80
(inch)	1, 1½, 2, 3
Pressure Rating	PN 16
Temperature Range (°C)	-40 to +200
Flange standard	PN 16, ANSI 150, JIS 10K
Face to face size	EN 558-1
Sealing requirements	Horizontal installation pipeline requires

ANSI	D		BL	d1	Glasplatte
	150 lbs	300 lbs	(DIN F1)		d2	s
						16bar40bar
1/2	89	95,2	130	32	45	10	10
3/4	98	117,3	150	32	45	10	10
1	108	123,8	160	48	63	10	15
11/4	118	133,4	180	48	63	10	15
11/2	127	155,6	200	65	80	12	20
2	152	165,1	230	80	100	15	25
21/2	178	190,5	290	80	100	15	25
3	191	209,9	310	100	125	20	30
4	228*	254,0	350	125	150	25	32
5	254*	279,4	400	150	175	25	a.A.
6	279	317,5	480	175	200	30**	a.A.
8	343*	381,0	600	175	200	30**	a.A.
10	Siehe Lumistar Bauform 112-A
* in GG 25 nicht lieferbar,da D nur nach DIN PN 16 lieferbar
**16 bar nur mit Borosillkatglas lieferbar

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