Quote CAD Files Catalog

LJ Star was founded in 1991 around a simple premise – provide safe, innovative, and high-quality products to the processing industry that its customers can rely upon in every application, every installation, every single day. Today, that legacy in proven performance has been built around an ever-expanding product offering that is recognized as market and technology leaders – the industry’s #1 selling fused sight glass, premium fittings and clamps that can withstand the most demanding applications, and award-winning lighting solutions that shed light wherever it’s needed. With an uncommon commitment in its market to candor and transparency, combined with deep applications expertise, LJ Star believes in showing customers a daily demonstration of all four Performance Pillars: operational impact, standards compliance, technology innovation and worker safety.

LJ Star is a customer-focused company that is simple to do business with because it has the most expertise in process control applications/industry requirements, along with remarkable customer service and delivery.

Because our products are critical to operational safety, we deal with our customers with a passionate commitment to integrity, truth, and the highest standards of business ethics.

We work with our customers to help them achieve their goals for productivity improvement, safety, and cost control.

LJ Star Incorporated provides an extensive line of process observation equipment — sight glasses, lights, sanitary fittings, and level gauge instrumentation. Product lines include METAGLAS® Safety Sight Windows, Lumiglas® Explosion Proof Lights and Cameras. Visual Flow Indicators, Sight Ports, Sanitary Clamps, Magnetic Level Gauges and Gauge Glass.

We pride ourselves in being industry leaders in fair pricing, prompt delivery and responsive customer support. Most of our standard products are available from stock and our technical staff stands ready to help our customers make the proper decisions when purchasing and installing process observation equipment.

“Where quality… in design, engineering, materials and workmanship… is always a standard feature.”

LJ Star is a key partner and supplier to the pharmaceutical, biotech, medical marijuana, food, dairy, oil, and gas industries. We will remain open for business to help support these essential industries while also following all guidelines put forth by the CDC, local, and state health departments. LJ Star and our subsidiaries are already working to fill critical orders which are essential in the Research and Development of COVID-19 vaccines.


Looking for quality tank components to go along with your process observation solution?
Visit our sister company Tank Components Incorporated (TCI)

It has been enjoyable working with you and everyone at LJ Star. You and your colleagues are professional and keep your promises. Thank you and your families for your sacrifices. — Operations Engineer - APS
METAGLAS solved our problem of process fluids etching the sight glass. We can literally see the difference in quality. — Manager of a Parenteral Pharmaceutical Plant
We have tested your sight glass. We attempted to take the unit to its burst pressure and found that our testing unit failed prior to your sight glass. — United States Navy
Applications expertise is important to us, in terms of being able to spec the right process observation equipment. L. J. Star has more field experience than anyone, and we rely on the understanding and insight they bring to our application. — Biotech Producer
We installed your new lights yesterday. The view is literally night and day difference. Once the Brewmaster sees how the lights are performing, he will want them on all of the vessels. I am glad that your experts knew how to get the results that we wanted. — Major Beverage Processor
METAGLAS fused-sight glass has proven to be a critical component to our safety program. The quality and durability of its true borosilicate glass is absolutely vital for sanitary process applications such as ours. Our internal testing has shown that there is no substitute for METAGLAS performance. — Large Pharmaceutical Company
We value the relationship we have with LJ Star – your company is a top notch supplier that we know we can count on and we look forward to continuing and growing our relationship. Keep up the good work. — Purchasing – ITT Industries Company
It is our pleasure to perform business with a company that values customer service as one of their top priorities, and that continues to provide innovative quality solutions. — Engineering – APP Drugs
Thank you for the pleasant customer service that you provided to me – I felt like you knew what it is I wanted and exactly how important it was to get it as fast as possible. — Senior MRO – Genentech
Thank you. I am just not used to such great customer service. Seriously, to all involved at LJ Star, your service has been excellent. — Senior Process Engineer, Biotech Industry

Why LJ Star?

Easy to Work With
LJ Star is easier to work with than other suppliers because our customer service staff has an industry-leading command of technical requirements and documentation. We recommend the sight glasses, sight flow indicators, sanitary fittings and other products that best suit your processing needs. Orders are processed quickly and correctly the first time.

Industry Proven Products
We offer the No. 1 selling fused sight glass, installed in more plants around the world than any other brand. A unique combination of metal and glass formulas make METAGLAS sight glasses 4.5x stronger than comparable products. The results are superior safety, a wider operating range, and a long, worry-free service life.
Unlike other sight glasses, METAGLAS meets stringent quality standards such as DIN 7079, DIN 7080, ASME BPE-2005, and ASTM E438, and it is approved for USP Type I use. See competitor comparison chart to compare features.

3rd Party Documentation
Beware of misleading claims about product performance. third-party documentation so you know your sight glass will perform as promised.

Fast Delivery
In many cases, standard ship times are within 24 hours. By manufacturing our sight flow indicators domestically, we cut delivery time in half compared with suppliers who manufacture overseas. And our inventory is 50 percent larger than most competitors, enabling fast delivery.



October 2, 2024

ISPE Product Show

Booth#E176 Gillette Stadium, Foxboro, MA https://productshow.ispeboston.org/

LJ Star products are carried by