Glass Sight Windows
from Plast-O-Matic Valves, Inc.
Series GL Double-wall cylinder for liquids compatible with Pyrex inner wall. 1/2 ″ or 3/4 ″ sizes, NPT or socket connections in PVC, PTFE, or polypro. BSP sizes also available. Standard lengths are 1 ′, 2 ′, 3 ′, 4 ′; custom lengths available. [See More]
- Optical / Window: Glass; Pyrex® Glass
- Connection Type: Threaded - NPT; BSP
- Window Shape: Full View
- Thread or Flange Size:: 0.5000
from Plast-O-Matic Valves, Inc.
Series GX Single-wall sight glass for liquids compatible with acrylic. 1/2 ″ – 3 ″ sizes, NPT or socket connections in PVC or polypro. Fluttering streamers optional. Series GY Double-wall sight glass for liquids compatible with Pyrex inner wall. 1/2 ″ – 3 ″ sizes,... [See More]
- Optical / Window: Glass; Pyrex® Glass
- Connection Type: Threaded - NPT
- Window Shape: Full View
- Thread or Flange Size:: 0.5000
from Danfoss A/S
LLG are sight glasses in ductile steel and meet the strictest requirements on industrial and marine refrigeration installations. The sight glasses are offered in 3 different versions: - with welding nipples (LLG). - with stop valves equipped with caps (LLG S). - with stop valves and sight adapter in... [See More]
- Optical / Window: Glass
- Pressure Rating: 363
- Window Shape: Oblong
- Temperature Rating: -58 to 212
from Tate-Jones, Inc.
The special model F/T Blast Gate Observation Port adds a new dimension to the Tate-Jones Line. This unit, available in 3? or 4? pipe size, mounts to a mating flange, while the viewing components are housed in a NPT threaded body half. The standard stainless steel slide arrangement in the blast gate... [See More]
- Optical / Window: Glass; Vycor Clear, Vycor Blue
- Connection Type: Flanged; Threaded - NPT
- Window Shape: Circular
- Thread or Flange Size:: 3
from Alfa Laval Inc.
Alfa Laval sight glasses are accurate gage glasses that permit direct distortion-free visual inspection of process conditions, products, liquid levels and cleaning inside vessels used in the dairy, food and beverage, personal care and biopharm industries. Reliably clear viewing quality. Alfa Laval... [See More]
- Optical / Window: Glass
- Connection Type: Welded; Flanged
- Window Shape: Circular
- Body / Housing: Steel - Stainless
from Spirax-Sarco
The SG13 is a maintainable brass multi-window sight glass with a cylindrical viewing window and screwed connections. The sight glass monitors the discharge downstream of steam traps in pressurised condensate return lines. It is screwed directly into the steam trap providing a modular monitoring... [See More]
- Optical / Window: Glass
- Connection Type: Threaded - NPT
- Window Shape: Circular
- Thread or Flange Size:: 0.5000 to 1
from Elesa U.S.A. Corporation
Resistant to solvents oil, grease and other chemical agents [See More]
- Optical / Window: Glass
- Connection Type: Threaded - NPT (optional feature); Threaded Straight (optional feature)
- Window Shape: Circular
- Thread or Flange Size:: 0.3750 to 2
from LJ Star
For aseptic and sanitary applications, the new flush-mounted NA connect sight glass from LJ Star Incorporated provides clear process visibility and unmatched safety with minimal maintenance requirements. The NA connect sight glass design eliminates the dead leg created by a standard sanitary ferrule... [See More]
- Optical / Window: Glass
- Connection Type: Welded
- Window Shape: Circular
- Thread or Flange Size:: 0.5000 to 4
from Oil-Rite Corp.
Window Flow Sights with Ball Indicator have an air-tight glass sight that allows visual observation of liquid flow, clarity, and condition. A nylon ball indicator shows the direction of fluid movement. The body is 303 stainless steel. The glass sight has a pressure tight, solid gasket design with... [See More]
- Optical / Window: Glass
- Pressure Rating: 125
- Connection Type: Threaded - NPT
- Body / Housing: Steel - Stainless
from Danfoss A/S
SGP is a series of sight glasses for high pressure applications (Max Working Pressure 52 bar/754 psig). SGP is available in versions optimized for refrigerants with mineral oil e.g. HCFC, and in versions optimized for non-flammable HFC refrigerants. SGP is available with flare, solder and socket... [See More]
- Optical / Window: Glass
- Connection Type: Available with Flare, Solder and Socket Connections
- Window Shape: Circular
- Thread or Flange Size:: 0.2500 to 0.8750
from Tate-Jones, Inc.
These observation ports are for low-pressure applications only. The Blast Gate Observation Ports use the Tate-Jones standard line of blast gates as the primary components and incorporate a mating flange, gaskets, and the glass lens which is secured by a metal retaining ring. The stainless steel... [See More]
- Optical / Window: Glass; Vycor Clear, Vycor Blue
- Connection Type: Flanged
- Window Shape: Circular
- Window Diameter, Length: 3.56
from Spirax-Sarco
A sight check is a combined sight glass and check valve. It is used to observe discharges from steam traps. The position of the ball check indicates whether or not condensate is flowing. Where condensate rises after the trap it eliminates the need for a separate check valve thus simplifying... [See More]
- Optical / Window: Glass
- Connection Type: Threaded - NPT
- Window Shape: Circular
- Thread or Flange Size:: 0.5000 to 1
from LJ Star
This sight glass features a flat face ANSI mating flange. It ’s special design offers reliability against rupture, a long working life, and a smooth, easy to clean surface. It meets a number of industry standards including the directive for pressure equipment 97/23/EG 02/98, Module H... [See More]
- Optical / Window: Glass
- Connection Type: Bolt On
- Window Shape: Circular
- Window Diameter, Length: 1.57 to 6.3
from Oil-Rite Corp.
303 Stainless Steel Window Flow Sights are primarily used in low pressure oil lines. The air-tight glass sight allows visual observation of the liquid flow, clarity, and condition. There are no restrictions on the inside of the sight, resulting in the full flow of liquid, equal to the respective... [See More]
- Optical / Window: Glass
- Pressure Rating: 125
- Connection Type: Threaded - NPT
- Body / Housing: Steel - Stainless
from Danfoss A/S
The MLI sight glass is mainly used to indicate the condition of the refrigerant as well as the liquid level in the receiver or the oil level in the compressor. MLI is equipped with a sensitive indicator that reflects a colour, depending on the moisture content in the refrigerant. MLI are sight... [See More]
- Optical / Window: Glass
- Connection Type: Welded; Available with Weld or Solder Connections
- Window Shape: Circular
- Thread or Flange Size:: 0.8750 to 1.62
from Tate-Jones, Inc.
Allows for optical pyrometer checking of the flame or operating vessel. The quartz lens is suited for a maximum intermittent operating temperature of 2048°F and continuous operating temperature of 1600°F, and allows for optical pyrometer checking of the flame or operation of vessel. Standard stocked... [See More]
- Optical / Window: Glass
- Connection Type: Threaded - NPT
- Window Shape: Circular
- Thread or Flange Size:: 0.5000
from Spirax-Sarco
A range of single and double window sight glasses available in either brass or bronze depending on size with screwed connections. [See More]
- Optical / Window: Glass
- Connection Type: Threaded - NPT
- Window Shape: Circular
- Thread or Flange Size:: 0.5000 to 2
from LJ Star
A combination of easy cleaning and a clear field of visibility is provided by this specially constructed sight glass unit. With a butt-weld connection, these Series-MV sight glasses allow the maximum view area in a minimal amount of space. An optional compact light source, type MV-ME, eliminates the... [See More]
- Optical / Window: Glass
- Connection Type: Welded
- Window Shape: Circular
- Thread or Flange Size:: 1.97 to 5.91
from Oil-Rite Corp.
303 Stainless Steel Window Flow Sights are primarily used in low pressure oil lines. The air-tight glass sight allows visual observation of the liquid flow, clarity, and condition. There are no restrictions on the inside of the sight, resulting in the full flow of liquid, equal to the respective... [See More]
- Optical / Window: Glass
- Pressure Rating: 125
- Connection Type: Threaded - NPT
- Body / Housing: Steel - Stainless
from Danfoss A/S
SGP is a series of sight glasses for high pressure applications (Max Working Pressure 52 bar/754 psig). SGP is available in versions optimized for refrigerants with mineral oil e.g. HCFC, and in versions optimized for non-flammable HFC refrigerants. SGP is available with flare, solder and socket... [See More]
- Optical / Window: Glass
- Connection Type: Available with Flare, Solder and Socket Connections
- Window Shape: Circular
- Thread or Flange Size:: 0.2500 to 1.12
from Tate-Jones, Inc.
Provides a safe and clear method to view the interior of a vessel. The port mounts easily to the vessel wall to protect from dust and sparks. Four, six, and eight inch sizes are available from stock with a carbon or stainless steel housing. [See More]
- Optical / Window: Glass
- Connection Type: Bolt On
- Window Shape: Circular
- Window Diameter, Length: 3.56
from Spirax-Sarco
The SG253 is an SG iron double window sight glass with flanged connections. [See More]
- Optical / Window: Glass
- Connection Type: Flanged
- Window Shape: Circular
- Thread or Flange Size:: 0.5906 to 1.97
from LJ Star
Mechanically pre-stressed sight glasses are now available with glass coated metal, allowing no metal exposed to the product. Constructed of glass fused with a dimensionally adapted glass coated metal frame-ring, this safety sight glass constitutes an alternative to conventionally annealed or... [See More]
- Optical / Window: Glass
- Connection Type: Bolt On
- Window Shape: Circular
- Thread or Flange Size:: 1.97 to 7.87
from Oil-Rite Corp.
303 Stainless Steel Window Flow Sights are primarily used in low pressure oil lines. The air-tight glass sight allows visual observation of the liquid flow, clarity, and condition. There are no restrictions on the inside of the sight, resulting in the full flow of liquid, equal to the respective... [See More]
- Optical / Window: Glass
- Pressure Rating: 125
- Connection Type: Threaded - NPT
- Body / Housing: Steel - Stainless
from Tate-Jones, Inc.
Tate-Jones units are for use in low pressure applications (5 PSI) where 100% shutoff is not required. The Saf-T-Eye Basic Unit Model No. 11 is made of a cast iron body and assembled with suitable glass and gaskets for it's operating environment. The Model No. 11 is available in cast iron and... [See More]
- Optical / Window: Glass; Vycor Clear, Vycor Blue
- Connection Type: Bolt On
- Window Shape: Oblong
- Window Diameter, Length: 2.75
from Spirax-Sarco
A range of single and double window sight glasses available in either brass or bronze depending on size with screwed connections. [See More]
- Optical / Window: Glass
- Connection Type: Threaded - NPT
- Window Shape: Circular
- Thread or Flange Size:: 0.3750 to 1
from LJ Star
The same commitment to quality the LJ Star name is known for is now available to you for all your replacement gauge glass and accessories! LJ Star replacement borosilicate gauge glass is manufactured exclusively to MIL G 16356-D standards. Gauge glass sizes 1 through 9 are stocked and available for... [See More]
- Optical / Window: Glass; Safety Sight and Level Gauge's
from Oil-Rite Corp.
Window Flow Sights With Restricted Orifices dispense liquid at a fixed flow rate. The glass sight allows viewing of the liquid. These flow sights provide a simple tamperproof method of furnishing the desired amount of lubrication without the use of control valves. The sights can be used as a... [See More]
- Optical / Window: Glass
- Pressure Rating: 125
- Connection Type: Threaded - NPT
- Body / Housing: Steel - Carbon
from Tate-Jones, Inc.
Tate-Jones units are for use in low pressure applications (5 PSI) where 100% shutoff is not required. This Saf-T-Eye® unit has two shutter assemblies for added protection of the glass and screen. Each shutter opens and closes when the handle is pulled. Two 1/4? purge connections are provided for... [See More]
- Optical / Window: Glass; Vycor Clear, Vycor Blue
- Connection Type: Bolt On
- Window Shape: Oblong
- Window Diameter, Length: 2.75
from LJ Star
The popular Metaclamp ® is now available with a fog/condensate free option. A built in heater keeps the temperature of the sight glass above the point where condensation and fog can form on the inside and outside of the sight glass (similar to a defogger on the back window of a car). Heating... [See More]
- Optical / Window: Glass
- Connection Type: Clamp On
- Window Shape: Circular
- Window Diameter, Length: 1.57 to 5.51
from Oil-Rite Corp.
Window Flow Sights With Restricted Orifices dispense liquid at a fixed flow rate. The glass sight allows viewing of the liquid. These flow sights provide a simple tamperproof method of furnishing the desired amount of lubrication without the use of control valves. The sights can be used as a... [See More]
- Optical / Window: Glass
- Pressure Rating: 125
- Connection Type: Threaded - NPT
- Body / Housing: Steel - Carbon
from Tate-Jones, Inc.
Tate-Jones units are for use in low pressure applications (5 PSI) where 100% shutoff is not required. The "E" Dimension of these units is cut on a thirty degree angle providing a different viewing aspect inside the vessel. The #12 unit has a viewing area of 2-3/4? by 3-1/2?. For a larger angular... [See More]
- Optical / Window: Glass; Vycor Clear, Vycor Blue
- Connection Type: Bolt On
- Window Shape: Oblong
- Window Diameter, Length: 2.75
from LJ Star
Sight Glass available in six standard sizes that provide viewing areas ranging in size from approximately 3? to 9? in diameter. The weld-on assembly is designed to provide direct visual inspection of process vessels, separators, silos, pipelines and storage tanks. To illuminate the interior of the... [See More]
- Optical / Window: Glass
- Connection Type: Welded
- Window Shape: Circular
- Thread or Flange Size:: 1.97 to 7.87
from Tate-Jones, Inc.
Tate-Jones units are for use in low pressure applications (5 PSI) where 100% shutoff is not required. When the vessel has a deeper wall thickness, a longer "E" dimension is available. If a special "E" dimension is required, the unit can be modified to accommodate the specification. [See More]
- Optical / Window: Glass; Vycor Clear, Vycor Blue
- Connection Type: Bolt On
- Window Shape: Oblong
- Window Diameter, Length: 2.75
from LJ Star
SKS/ESKS integral light/sight glass units have a quick release closure, so that they are a combination of charge/access port and light/sight glass. The integrated luminaire illuminates the internal of boilers, tanks, bunkers, silos, mixers and other vessels in all non hazardous areas. SKS type sight... [See More]
- Optical / Window: Glass
- Connection Type: Bolt On (optional feature); Welded
- Window Shape: Circular
- Pressure Rating: 0.0 to 14.5
from Tate-Jones, Inc.
Tate-Jones units are for use in low pressure applications (5 PSI) where 100% shutoff is not required. The Saf-T-Eye® Basic Unit Model No. 15 is available in three metals and four types of glass. The Saf-T-Eye® Basic Unit Model No. 15-309SS is made of 309 stainless steel and is suitable for higher... [See More]
- Optical / Window: Glass; Vycor Clear, Vycor Blue
- Connection Type: Bolt On
- Window Shape: Oblong
- Window Diameter, Length: 4.5
from LJ Star
When a quick-opening sight glass is required in a process application, this hinged assembly, which incorporates the use of Metaglas, can be used up to 150 psi, depending on size. It is particularly suitable where a process requires sampling or additives, or when it is necessary to clean the inside... [See More]
- Optical / Window: Glass
- Connection Type: Bolt On (optional feature); Welded (optional feature)
- Window Shape: Circular
- Window Diameter, Length: 2.76 to 6.3
from Tate-Jones, Inc.
Tate-Jones units are for use in low pressure applications (5 PSI) where 100% shutoff is not required. The "E" dimension of this unit is cut on a thirty degree angle providing a different viewing aspect inside the vessel with a larger viewing window than the Model No. 12 unit. It is available from... [See More]
- Optical / Window: Glass; Vycor Clear, Vycor Blue
- Connection Type: Bolt On
- Window Shape: Oblong
- Window Diameter, Length: 4.5
from LJ Star
Our sight glass is ready for installation on existing ANSI or DIN standard flanges. This bolt-on sight glass unit consists of a base with a raised face flange to fit standard ANSI Class 150 flange nozzles. Sizes range from 2 to 8? and all conform to ASTM standards. The glass disc, either... [See More]
- Optical / Window: Glass
- Connection Type: Bolt On
- Window Shape: Circular
- Thread or Flange Size:: 2 to 8
from Tate-Jones, Inc.
Tate-Jones units are for use in low pressure applications (5 PSI) where 100% shutoff is not required. The Saf-T-Eye® Basic Unit Model No. 20 is made of a carbon steel or stainless steel body and assembled with suitable glass and gaskets for its operating environment. The Model No. 20 is currently... [See More]
- Optical / Window: Glass; Vycor Clear, Vycor Blue
- Connection Type: Bolt On
- Window Shape: Oblong
- Window Diameter, Length: 5
from LJ Star
The strongest, most secure sight glass elements available, Metaglas ® mechanically prestressed windows, are available in a threaded design for process applications. Metaglas threaded sight glasses are compliant with the recently revised ASME (founded as the American Society of Mechanical... [See More]
- Optical / Window: Glass
- Connection Type: Threaded - NPT
- Window Shape: Circular
- Thread or Flange Size:: 0.2500 to 3
from Tate-Jones, Inc.
The Blast Gate Observation Ports use the Tate-Jones standard line of blast gates as the primary Threaded Blast Gate Observation Portcomponent and incorporate a glass lens, gaskets, and rings that are securely retained with a metal bushing. The stainless steel slide arrangement in the blast gate... [See More]
- Optical / Window: Glass; Vycor Clear, Vycor Blue
- Connection Type: Threaded - NPT
- Window Shape: Circular
- Thread or Flange Size:: 2
from LJ Star
These weld-type sight glass fittings, complete with glass disc, seal gasket, and cushion gasket bolted between circular flanges, is the low-pressure version of the DIN 28120. The units can be combined with Lumiglas luminaires, such as the USL05-Ex, USL06-Ex, USL07-Ex or USL08-Ex , for use in... [See More]
- Optical / Window: Glass
- Connection Type: Welded
- Window Shape: Circular
- Thread or Flange Size:: 1.97 to 7.87
from LJ Star
Welded into a vessel or a pipeline, these rugged fittings provide either flow or level indication. They are available in carbon steel, stainless steel and special alloys. Obround visible glass sizes range from 1 to 4? in width and 6? to 24? inches in length, and are suitable for ASME code... [See More]
- Optical / Window: Glass
- Connection Type: Welded
- Window Shape: Oblong
- Window Diameter, Length: 12 to 24
from LJ Star
Extremely strong and chemically resistant to acids, alkalis (caustics) and alcohols, the MetaPlex ® optical grade polymer windows are encapsulated in a stainless steel frame for use in sanitary processing applications. The MetaPlex ® polymer sanitary window provides a level of safety and... [See More]
- Optical / Window: Glass
- Connection Type: Clamp On
- Window Shape: Circular
- Thread or Flange Size:: 1.98 to 4.68
from LJ Star
Welded into a vessel or a pipeline, these rugged sight glass fittings provide either flow or level indication. They are available in carbon steel, stainless steel and special alloys. Rectangular sight glass fittings are available with a 5/8? wide view and up to 70? in overall length. Custom designs... [See More]
- Optical / Window: Glass
- Connection Type: Welded
- Window Shape: Oblong
- Window Diameter, Length: 8.07 to 37.6
from LJ Star
Borosilicate Glass to DIN 7080 with temperature ratings to 536 °F (280 °C)Quartz Glass with temperature ratings to 1000 °F (537 °C) Glass discs with wiper hole and Obround and gauge glass also available. [See More]
- Optical / Window: Glass; Replacement Sight Glass for Lumiglas Ports and Windows
- Window Diameter, Length: 2.48 to 9.84
- Window Shape: Circular
- Temperature Rating: 32 to 536
from LJ Star
When a quick-opening port is required in a process application, this sanitary hinged sight glass, which incorporates the use of the MetaClamp ®, can be used for applications with pressures up 150 psi, depending on size. It is particularly suitable where a process requires sampling or additives,... [See More]
- Optical / Window: Glass
- Pressure Rating: 150
- Window Shape: Circular
from LJ Star
The strongest, most secure sight glass elements available, Metaglas ® mechanically prestressed windows, are available in a sanitary design for process applications. Unlike some other sight glasses, Metaglas sight glasses meet the USP Type 1 standard for pharmaceutical use. Described as offering... [See More]
- Optical / Window: Glass
- Connection Type: Clamp On
- Window Shape: Circular
- Thread or Flange Size:: 0.5000 to 12
from LJ Star
Metaglas is the strongest sight glass available. Mounting: Weld-on DIN28120 or similar assembly. Glass: Borosilicate to DIN7080. Metal: Carbon, Stainless Steel or Hastelloy. Up to 572 ° F. Up to 900 psi. Ratings and approvals: PED, DIN7079, T ÜV. Sizes: 1 to 5 inches (view). Sizes: XX to XX... [See More]
- Optical / Window: Glass
- Connection Type: Welded
- Window Shape: Circular
- Window Diameter, Length: 1.77 to 4.72
from LJ Star
Sight glass disc for DIN28120 and other weld-type sight glass assemblies. Mounting: Weld-on DIN28120 or similar assembly. Glass: Borosilicate to DIN7080. Metal: Carbon, stainless steel or Hastelloy. Up to 572 ° F. Up to 900 psi. Ratings and approvals: PED, DIN7079, T ÜV. Sizes: 1 to 5... [See More]
- Optical / Window: Glass
- Connection Type: Welded
- Window Shape: Circular
- Window Diameter, Length: 0.9843 to 4.72