Flow sight glass type 550-K with indicator flap

Technical details

Material:

Body made of cast iron GG-25 (EN-JL 1040)

Body made of cast steel GS-C 25 (1.0619)

Body made of Stainless steel 1.4408

Screws 4.6 / 5.6 vz or A4-70

Gaskets:
graphite (or as desired)

Shape:

straight flow sight glasses acc. to DIN 3237 with indicator flap


Nominal diameter:

DN 15 - 250

Nominal pressure:

PN 16 /25 / 40 depending on material selection


Temperature:

with Borosilikatglas up to 280°C
with Natron-Kalk-Glas up to 150°C



Other:

Optional versions:
Special materials, quartz glass, metal fused glasses, heating mantle, lighting device, etc.

Options:

Optional versions are possible.

DN D BL d 1 d 2 Glass
S
PN 16 PN 25 PN 40
15 95 130 32 45 10 10 10
20 105 150 32 45 10 10 10
25 115 160 48 63 10 12 15
32 140 180 48 63 10 12 15
40 150 200 65 80 12 15 20
50 165 230 80 100 15 20 25
65 185 290 80 100 15 20 25
80 200 310 100 125 20 25 30
100 220(235)* 350 125 150 25 30 35
125 250(270)* 400 150 175 25 30 on request
150 285(300)* 480 175 200 30** 35 on request
200 340(360/375)* 600 175 200 30** 35 on request
250 see ACI Type 530
300

* D ( ) for PN 25 / PN 40
** 16 bar only Borosilicate glass
> DN 100 and PN 40 similar to DIN 3237

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