Level indicator type 400 PN 40

Product information

The level indicator type 400 serves as a liquid indicator in the bypass for reliable level control at boilers and tanks. The indicator features a rectangular flange fitting with two rear Ø 18 mm holes, which are intended for welding ends to pipe fittings.

Alternatively, the level indicator can be welded directly into the tank wall – in this case, the closed back serves as a calming section to minimize level fluctuations in the tank.

The fitting is equipped with a sight glass plate made of high-quality borosilicate glass according to DIN 7081. This is securely framed between seals and tightly screwed to ensure lasting tightness and high pressure resistance.

Standardly, the sight glass type 400 is made from stainless steel 1.4571 (316Ti) – a material known for its high corrosion resistance and durability. Upon request, the execution is also available in many other materials, suitable for specific requirements and applications.

The sealing of the fitting is done with flat seals adapted to your needs from a wide range of materials. This offers not only the common fiber material seals but also more demanding materials, such as PTFE (Teflon®), novaphit® MST-XP, and KlingerSil® C4400.

Important note: Reflex sight glasses are not combinable with mica discs and coatings, as the protective mica layer prevents the light refraction necessary for reflection.