Steel Sight Windows

Fused Window Sight, With Reflector, 1 1/16 Hex, 3/4” NPTF -- A2890-14
from Oil-Rite Corp.

Fused Window Sights allow visual observation of liquid levels and their condition. They can be used to display fluid motion or mechanical movements, as well as to view and perform tests in a safe enclosure. Specific uses include fluid sighting on hydraulic tanks, pressure vessels, reservoirs,... [See More]

  • Body / Housing: Steel - Carbon
  • Thread or Flange Size:: 0.7500
  • Connection Type: Threaded - NPT
  • Window Diameter, Length: 0.7812
Bolt-on Sight Glasses to ANSI B16.5 Type 13 -- Metaglas®
from L.J. Star Incorporated

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]

  • Body / Housing: Steel - Carbon; Steel - Stainless (optional feature); Hastelloy
  • Connection Type: Bolt On
  • Window Shape: Circular
  • Window Diameter, Length: 1.57 to 6.3
Gasketed Window Sight, With Reflector, 1 1/16 Hex, 3/4” NPT -- B1740-14
from Oil-Rite Corp.

Gasketed Window Sights allow visual observation of liquid levels and their condition. They can be used to display fluid motion or mechanical movements, as well as to view and perform tests in a safe enclosure. Specific uses include fluid sighting on hydraulic tanks, pressure vessels, reservoirs,... [See More]

  • Body / Housing: Steel - Carbon
  • Thread or Flange Size:: 0.7500
  • Connection Type: Threaded - NPT
  • Window Diameter, Length: 0.7812
Hinged Sight Glass -- Lumiglas® View/Light Combo Series SKS
from L.J. Star Incorporated

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]

  • Body / Housing: Aluminum; Steel - Carbon; Steel - Stainless (optional feature)
  • Connection Type: Bolt On (optional feature); Welded
  • Window Shape: Circular
  • Pressure Rating: 0.0 to 14.5
High Pressure Window Flow Sight, 1/4” Female NPT Inlet, 1/4” Female NPT Outlet, Viton Seals, 350 PSI Max -- YA7525-2
from Oil-Rite Corp.

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 pipe size. The unit can... [See More]

  • Body / Housing: Steel - Carbon
  • Pressure Rating: 350
  • Connection Type: Threaded - NPT
  • Optical / Window: Glass
Industrial Bolt-On Sight Glass
from L.J. Star Incorporated

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]

  • Body / Housing: Steel - Carbon; Steel - Stainless
  • Connection Type: Bolt On
  • Window Shape: Circular
  • Thread or Flange Size:: 2 to 8
Press-Fit Fused Window Sight, 1 3/8” Dia -- YA7192-1
from Oil-Rite Corp.

Fused Window Sights allow visual observation of liquid levels and their condition. They can be used to display fluid motion or mechanical movements, as well as to view and perform tests in a safe enclosure. Specific uses include fluid sighting on hydraulic tanks, pressure vessels, reservoirs,... [See More]

  • Body / Housing: Steel - Carbon
  • Thread or Flange Size:: 1.25
  • Connection Type: Bolt On
  • Window Diameter, Length: 0.9375
Obround Sight Glass
from L.J. Star Incorporated

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]

  • Body / Housing: Steel - Carbon
  • Connection Type: Welded
  • Window Shape: Oblong
  • Window Diameter, Length: 12 to 24
Window Flow Sight for Full Flow with Ball Indicator, for Fluid Flowing Up, 11/16” Port, 1/4” Female NPT Inlet, 1/4” Female NPT Outlet, Buna-N Seals -- A897-2
from Oil-Rite Corp.

Window Flow Sights for Full Flow have an air-tight glass sight that allows visual observation of liquid flow, clarity, and condition. There are no orifice restrictions on the inside of the sight, resulting in the full flow of liquid, equal to the respective pipe size. This flow sight is designed to... [See More]

  • Body / Housing: Steel - Carbon
  • Pressure Rating: 125
  • Connection Type: Threaded - NPT
Rectangular Level Gauge
from L.J. Star Incorporated

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]

  • Body / Housing: Steel - Carbon; Steel - Stainless (optional feature)
  • Connection Type: Welded
  • Window Shape: Oblong
  • Window Diameter, Length: 8.07 to 37.6
Window Flow Sight for Full Flow, 11/32” Port, 1/8” Female NPT Inlet, 1/8” Female NPT Outlet, Buna-N Seals -- A715-1
from Oil-Rite Corp.

Window Flow Sights for Full Flow 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 pipe... [See More]

  • Body / Housing: Steel - Carbon
  • Pressure Rating: 125
  • Connection Type: Threaded - NPT
  • Optical / Window: Glass
Sight Glass Disc with Wiper, Type 73 SW -- Metaglas®
from L.J. Star Incorporated

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]

  • Body / Housing: Steel - Carbon; Steel - Stainless (optional feature); Hastelloy
  • Connection Type: Welded
  • Window Shape: Circular
  • Window Diameter, Length: 1.77 to 4.72
Window Flow Sight for Full Flow, 3/4” Port, 3/4” Female NPT Inlet, 3/4” Female NPT Outlet, Buna-N Seals -- A2109-1
from Oil-Rite Corp.

Window Flow Sights for Full Flow 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 pipe... [See More]

  • Body / Housing: Steel - Carbon
  • Pressure Rating: 125
  • Connection Type: Threaded - NPT
  • Optical / Window: Glass
Sight Glass Disc, Type 73 -- Metaglas®
from L.J. Star Incorporated

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]

  • Body / Housing: Steel - Carbon; Steel - Stainless (optional feature); Hastelloy
  • Connection Type: Welded
  • Window Shape: Circular
  • Window Diameter, Length: 0.9843 to 4.72
Window flow sight restricted orifice, 1/8” Orifice, 1/4” Female NPT Inlet, 1/4” Female NPT Outlet, Lexan Sight, Viton Seals -- B2252-4-S04
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]

  • Body / Housing: Steel - Carbon
  • Pressure Rating: 125
  • Connection Type: Threaded - NPT
  • Optical / Window: Lexan
Window Flow Sight with Restricted Orifice, 1/16” Orifice, 1/8” Female NPT Inlet, 1/8” Female NPT Outlet -- B2252-2
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]

  • Body / Housing: Steel - Carbon
  • Pressure Rating: 125
  • Connection Type: Threaded - NPT
  • Optical / Window: Glass
High-Temperature Peep Site -- 1/2PS
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]

  • Body / Housing: Steel - Carbon; Steel - Stainless
  • Connection Type: Threaded - NPT
  • Window Shape: Circular
  • Thread or Flange Size:: 0.5000
Sight Glasses for Industrial Refrigeration with Liquid Indicator -- MLI
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]

  • Body / Housing: Steel - Carbon
  • Connection Type: Welded; Available with Weld or Solder Connections
  • Window Shape: Circular
  • Thread or Flange Size:: 0.8750 to 1.62
Round Observation Port -- MKA
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]

  • Body / Housing: Steel - Carbon; Steel - Stainless
  • Connection Type: Bolt On
  • Window Shape: Circular
  • Window Diameter, Length: 3.56
Saf-T-Eye® Observation Port -- Model 16
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]

  • Body / Housing: Steel - Carbon; Steel - Stainless
  • Connection Type: Bolt On
  • Window Shape: Oblong
  • Window Diameter, Length: 4.5