ISO F and ISO K Sight Window: Glass Fused into 316 Stainless Housing
 
  • Housing Material: 316 Stainless
  • Window Material: borosilicate (Pyrex) glass
  • Temperature operating range: 0 Kelvin to 300C
  • Pressure safety factor: Minimum 1.25x
  • Thermal shock resistance: Excellent
  • Impact resistance: Excellent
  • Leak Rate: Equivalent to the permeation rate through glass (~zero)
  • Chemical resistance: Excellent for solvents, must be tested for specific acids and corrosives

All Rayotek ISO F and ISO K sight window metal housings are CNC machined, not cast, to exacting standards. Metal and window materials for all of our sight windows are traceable and certified back to their raw material sources to insure the highest, repeatable quality and reliability.

For configuration and applications outside of the scope of this sight window page please see our Custom Sight Window page or contact Rayotek Sight Windows directly to speak with a representative or engineer.


316 Stainless ISO F and ISO K housing with borosilicate (Pyrex™) fused glass window:

Rayotek 316 Stainless Steel/fused glass ISO F and ISO K flanged sight windows are rugged, corrosion resistant sight windows for a variety of applications from high vacuum systems to  pressure chambers to ultra high purity processing equipment. Rayotek ISO F and ISO K flanged borosilicate fused glass sight windows are so robust that even when cracked from mechanical damage they continue to seal and protect against release of pressure and exposure to contamination.

Online purchasing coming soon! Please contact us directly for a quote.

ISO F SIZE
(DN)
FLANGE DIAM.  (in)
FLANGE DIAM. (mm)
Clear Aperture (in)
Clear Aperture (mm)
Maximum* Pressure (PSI/BAR)
Internal (IP), External (EP) or Vacuum (VAC)
Part Number
 
 
 
 
 
 
 
ISO F only
63
5.12
130.0
2.30
58.4
45/3
EP, IP, VAC
101331
80
5.71
145.0
2.60
66.0
45/3
EP, IP, VAC
101332
100
6.50
165.1
3.00
76.2
45/3
EP, IP, VAC
101333
160
8.86
225.0
4.18
106.2
45/3
EP, IP, VAC
101334
200
11.22
285.0
5.44
138.2
45/3
EP, IP, VAC
101335
250
13.19
335.0
6.48
164.6
45/3
EP, IP, VAC
101336
320
16.73
424.9
8.26
209.8
45/3
EP, IP, VAC
101337
 
 
 
 
 
 
 
 
ISO K size
 
 
 
 
 
 
ISO K only
63
3.74
95.0
2.50
63.5
45/3
EP, IP, VAC
101338
80
4.33
110.0
2.85
72.4
45/3
EP, IP, VAC
101339
100
4.12
104.6
3.30
83.8
45/3
EP, IP, VAC
101340
160
7.09
180.1
4.60
116.8
45/3
EP, IP, VAC
101341
200
9.45
240.0
5.90
149.9
45/3
EP, IP, VAC
101342
250
11.42
290.1
7.00
177.8
45/3
EP, IP, VAC
101343
320
14.75
374.7
9.00
228.6
45/3
EP, IP, VAC
101344


* ISO F and ISO K flanges are designed for vacuum systems only, not pressure systems.
Customer is responsible for safe design and use of sight windows.

Contact Rayotek Sales for higher temperature ISO Sight Windows

Back to ISO Configuration Page.