Round manhole inspection sight glass - Type 325
for openings acc. to DIN 1092-1 PN 6 | PN 10 | PN 16
Manhole tank sight glass Type 325
ACI manhole sight glasses type 325 can be used to close manhole and inspection openings on tanks, silos and vessels. In contrast to common manhole closures, the type 325 is equipped with a sight glass mount similar to DIN 28120. This allows safe observation of the processes inside the tank.
Our sight glasses type 325 are made of the high-quality stainless steel 1.4571 (316Ti), which our customers have appreciated for years. The glass material used is the industry-proven borosilicate glass 3.3 in accordance or similar to DIN 7080. Should process conditions pose a problem even for the highly resistant borosilicate glass, an FEP or mica protective screen specially adapted for the fitting provides additional protection against steam and aggressive chemicals, such as alkalis, up to a pH value of 14.
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 (Teflon®), NBR, graphite (e.g. Frenzelit novaphit®) and many other branded gaskets are available for special applications.
On request and after technical verification, the manhole sight glass type 325 can be equipped with cleaning devices such as wipers SGW and spraying devices or with lights to illuminate the interior.
More technical details about our manhole sight glass type 325 can be found further down this page!
¹ Optional materials:
1.0460 / 1.4301 / 1.4307 (F304L) / 1.4404 (F316L) / 1.4410 (Super Duplex) / 1.4435 (F316L) / 1.4462 (F 51) / 1.4529 (Alloy 926) / 1.4539 (Alloy 904L) / 1.4541 (F321) / 1.4547 (F44) / 1.4550 (F347) / 1.4571 (316Ti) / 1.4828 / 1.4841 / 1.4876 ( Alloy 800H) / 1.4878 / 1.7335 / 2.4068 (Alloy 201) / 2.4360 (Alloy 400) / 2.4375 (Alloy K500) / 2.4602 (Alloy C-22) / 2.4605 (Alloy 59) / 2.4610 (Alloy C-4) / 2.4816 (Alloy 600) / 2.4819 (Alloy C-276) / 2.4856 (Alloy 625) / 2.4858 (Alloy 825) / 3.7035 (Titan)
|H [mm]||PN 6||23||25||28||31||33||37||42||47|
|Weight [kg]||PN 6||30||40||52||68||92||135||193||273|
|Da / K||According to DIN EN 1092-1 PN 6 / PN 10 / PN 16|