Tank sight glass type 334 rectangular
The ACI tank sight glass Type 334 is a lightweight design featuring a significantly enlarged viewing aperture, suitable for operating pressures up to max. 3 bar(g). This design allows the Type 334 to combine the functions of round tank sight glasses, such as Type 318, and vessel wall-mounted level indicators like Type 330.
Despite the lower requirements, our Type 334 vessel sight glasses are made of the high-quality 1.4571 (316Ti) stainless steel that our customers have appreciated for years.
The glass material used is the industry-proven borosilicate glass 3.3, similar to DIN 7081.
The fitting is sealed with flat gaskets adapted to your requirements from an extensive range of materials. In addition to the widely used fiber gaskets (e.g., KLINGERSIL® C-4400), PTFE (Garlock GYLON®, Frenzelit novaflon®), NBR, graphite (e.g., Frenzelit novaphit®), and many other branded gaskets are available for special applications.
The tank sight glass Type 334 is delivered pre-assembled by hand at the factory. The pre-assembled unit must be dismantled before the base frame is welded in or on. The glass and the gaskets are then screwed together again with the cover frame, whereby even very low tightening torques are sufficient to achieve sufficient surface pressure.
