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METAGLAS® Sight Glass Type 76

METAGLAS® Sight Glass Discs for Welding Neck Flange - DIN and ANSI Connection

METAGLAS® sight glass type 76

Applications

As a replacement for conventional glasses in the following assemblies:

  • Circular sight ports to DIN 28121
  • Plus any other assemblies where the glass is of the same
    dimensions,  e.g weld neck flanges with flat or raised face

Advantages

  • Reliability against total failure – the possibility of sudden
    unexpected rupture is totally excluded
  • High resistance to bending and over-tightening offers simple and fast installation with no risk of breakage
  • Extreme resistance to impact, pressure and temperature
  • Reusable in the same or other applications – conventional glass is not
  • Wide acceptance in the European & American chemical industries

Operating conditions

  • Temperature: -60°C to +300°C
  • Pressure: up to 40 bar (TÜV)
  • Higher pressures possible

Approvals and technical data

Manufactured and tested in conformance with:

  • Pressure Equipment Directive 2014/68/EU,
    Module H/H1 (DIN/EN/ISO 9001)
  • AD2000 Standards W0/TRD 100
  • Factory Mutual Approval (materials and sizes - see approved drawings)
  • TÜV-Approval*
  • Sight glass fused to metal conforming to DIN 7079
  • Glass quality: Borosilicate glass to DIN 7080 / DIN 7079

Material Certificates

  • Certificate of Conformity to EN 10204-3.1 or 3.2

Ring material

Operation temperature

1.0570

-10°C to +300°C

1.4462

-30°C to +280°C

2.4602

-60°C to +300°C

2.4605

-60°C to +300°C

2.4610

-60°C to +300°C


Nominal size

maximum pressure
16 bar

 

 


40 bar

 

 

 

 

   d1

 d2

    S

   d1

d2

 

S

  25

  70

  30

10

  70*

  30

 

15

  32

  82

  40

12

  82

  40

 

15

  40

  92

  45

15

  92

  45

 

20

  50

107

  50

15

107

  50

 

20

  65

127

  70

15

127

  70

 

25

  80

142

  75

20

142

  75

 

25

100

162

  80

20

162*

  80

 

25

125

192

100

20

192*

100

 

30

150

218

100

25

218*

100

 

35

200

273

120

30

273*

120

 

40