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Sight glass fittings similar to DIN 11851

Sight glass fittings similar to DIN 11851

Applications

  • Weld-on sight glass fitting with screwed cover
    flange. Sightport for viewing into Bioreactors,
    Labroratory mixers, filters as well as into process
    vessels, separators, pipelines and other usually
    closed containers. Particularly suitable for
    pharmaceutics, food and beverage processing,
    e. g. breweries, dairies etc.

Operating conditions

  • Pressure:
    6 bar, higher pressures possible
  • Temperature:
    up to 280°C, see table, depending on material
 

Parts and materials

  • Slotted cover nut: stainless steel 1.4301, 1.4307
  • Flat gasket: KLINGERSiL C-4400
  • Sight glass disc:
    - Sodalime glass, material to DIN 8902
    - Borosilicate glass to DIN 7080
  • O-ring seal:
    Viton, PTFE, Buna, Silicone, EPDM
  • Weld neck nozzle:
    stainless steel 1.4301, 1.4307, 1.4404

Combinations

  • This sight glass unit can be combined with several sight glass luminaires. Sight glass wiper type SW I can be fitted to sizes DN 50 and larger. Combination of luminaire plus wiper can be fitted to size DN 125.

glas materials

operating temperature

sodalime glass

to +150°C

borosilicate glass

to +280°C

Nonminal size

 


d1


d2


s


D


d


A


a

 

 

 

 

 

 

 

 

 

size

DN

 

 

 

 

 

 

 

1

50

50

63

10

92

61

44

21

2

65

65

80

12

112

79

52

24

3

80

80

94

12

127

93

57

25

4

100

100

113

15

148

114

69

34

5

125

125

141

15

178

136

59

22

6

150

150

166

15

210

163

62

22