Type KL 631 - Oval design
Container sight glasses of type KL 631 are suitable for monitoring the liquid level in containers. They can be welded directly into container walls or welded on as a radiused version.
max. 10 bar
heat-resistant up to 243 °C
for liquid media
for gaseous media
Overall lengths 170–575 mm
Custom-made products possible
>50 sealing materials
Accessories available
Technical data:
Operating pressure
10 bar
Higher pressures on request
Base frame
1.4404 / 1.4571 / 1.4435 / 2.4602 Hastelloy C22*
On request with APZ DIN EN 10204-3.1 / ASME SA-240 / AD200 W2/W10
Flange thickness: 25mm*
*Others on request
Cover flange
1.4301 / 1.4404*
On request with APZ DIN EN 10204-3.1 / ASME SA-240 / AD200 W2/W10
Flange thickness: 15mm*
*Other on request
Bolts
DIN 912 A2-70 or A4-70
Countersunk screw heads
For ASME approval, imperial screws are also possible
Sight glass disc
Borosilicate glass according to DIN 7081 up to 243°C
Soda-lime glass according to DIN 8903 up to 100°C
Gaskets (FDA-compliant):
PTFE, EPDM, Klingersil® C-4400, Reinz AFM 34, Silicone, Garlock GYLON®
Available with USP Class VI certification on request
*Other available on request
Versions:
Variant with blind hole
for welding
Variant with radius
for welding on
Both variants combinable with
continuous drainage slope
01
Decades of experience in plant engineering
02
Precision “Made in Germany”
03
Tailor-made special solutions
04
Reliable under pressure and temperature
05
Compatibility with common standards and norms
06
Fast availability and short delivery times
