It can be installed as the windows of a piping system, an external vacuum tube, or as a component with a frame screwed between two metal pipes. Read More…
Leading Manufacturers
S & S Optical Company, Inc.
New Haven, IN | 260-749-9614S & S Optical has been leaders as glass fabricators in a variety of industries and markets for over 50 years. We offer a variety of different glasses to fit all of your needs. Also, we have a multitude of capabilities and services to offer-polishing, grinding, edging and more. To learn how we can fabricate your parts contact us today for a quote. We care about customers and quality service.
Pegasus Glass
Cambridge, ON | 800-315-0387Glass cutting is a varied industry, and we have done it all for the past 50 years. We believe in manufacturing high quality glass products that will exceed customer expectations every time.
Technical Glass Products, Inc.
Painesville Township, OH | 440-639-6399Founded in 1990, Technical Glass Products is a fabricator of Fused Quartz Glassware. We maintain a broad inventory of labware, flat stock, rod and tubes in addition to providing custom fabrication using state of the art equipment to suit your needs.
Insaco Inc.
Quakertown, PA | 215-536-3500Established in 1947, we have been providing glass cutting using very precise tolerances in order to ensure that our products are among the best. Our skilled designers and technicians are available around the clock in order to work with you from design to delivery to ensure that you are receiving a product that will fit your needs perfectly! For more information on what we may be able to do for...
Specialty Glass Products, Inc.
Willow Grove, PA | 215-659-8400With over 40 years of experience, Specialty Glass Products specializes in glass fabrication and glass cutting of custom precision parts made from all types of glass, filter glass and quartz. Our strengths are in glass fabricating, miniature machining, thin lapping and polishing.
Sight Glass Manufacturers List
Sight Glass - Pegasus GlassTanks, boilers, reactors or vessels may contain components of sight glass in the form of liquid level gauges or inline sight points. Further uses include media vessels in chemical plants and in other industrial settings such as breweries, bio gas plants, pharmaceutical, food processing and beverage.
Also referred to as sight windows or sight ports, sight glass components are important for a number of reasons. For consumer and beverage industries it is necessary to ensure levels remain high. In some machines, without a specific amount of necessary liquids, the engines could seize and cause great damage; therefore it is imperative the levels are monitored to remain in a safe phase.
Sight glass can come in different forms; however the most common type of sight glass is composed of a tempered glass disc between two metal frames which have been secured together allowing the operator of the equipment to determine the level of liquid contained within.
The glass used must be transparent in order for the level of liquid to be observed and therefore color additives or coatings are not typically used with sight glass. However, to ease the reading of the level, a backboard may be a component of the sight glass mechanism.Sight glass is typically manufactured as safety glass in order to prevent any pressure or tension resulting in breakage and potential physical damage to personnel working with the machinery. However, glass which has been tempered or mechanically stressed prior to installation is less likely to break and therefore it is used for sight glass to reduce the risk of explosions. The glass used for sight glass fabrication is made using soda lime or borosilicate glass.
Soda lime glass tends to be more cost-effective and is a good quality material. However, when tensile strength and a lower coefficient of expansion are required in a piece of sight glass, more expensive borosilicate glass is used. It is unlikely that borosilicate glass will crack or break even when exposed to temperature changes and pressure. Sight glass can be further strengthened through the process of annealing and ion exchange chemical strengthening.
