Tubular Sight Glasses (full view) - Type KL 323
Tubular Sight Glass to connect to DIN 2633 flanges.
To watch the fluid flow or fluid level in the inside of pipelines.
This special construction with connecting flanges and separate glass-clamping-rings makes this
armature less sensitive to tube forces (drag and compressive forces or torsional moments).
In armatures, which clamp the glasstube directly between the connecting flanges, tube forces
often cause a breakage of the glass.