Tubular sight glass type 671 PN 25/40Intermediate flange design for flanges acc. to DIN EN 1092-1 USAGE Tubular sight glass type 671 is used to observe the level and flow in pipelines. They enable reliable 360° monitoring of the function and performance of individual devices as well as complete systems. The tubular sight glass type 671 is designed for installation between flanges according to DIN EN 1092-1, PN 25/40. Seals must always be used that fit the sealing surfaces. The screw material should be equal or superior compared to the flange material. Whenever possible, both the screw thread and the screw head should be provided with an appropriate lubricant to ensure an even preload and simpler assembly. Pipe sight glasses must be installed in such a way that no pipe forces (tension, pressure, torsion), vibrations, or pressure shocks can affect the fitting. 10112025 - Subject to technical changes and errors!

r Tubular sight glass type 671 PN 25/40 10112025 - Subject to technical changes and errors! 4

Tubular sight glass type 671 PN 25/40Intermediate flange design for flanges acc. to DIN EN 1092-1 Type PRODUCTCODE Example for Explaining the Code Composition GROUP TYPE 1) Tempered borosilicate glass Unless otherwise stated, the highlighted factory standard will be delivered. The product code 11-671-7-1-1-4-000 corresponds to the standard version: Flanges made of 1.4571 Borosilicate glass tempered Gaskets made of KlingerSil® C4400 4. Glass ring tubular sight glass type 641 10112025 - Subject to technical changes and errors!

Tubular sight glass type 671 PN 25/40 Intermediate flange design for flanges acc. to DIN EN 1092-1 QUICK OVERVIEW Custom made designs possible OPERATING CONDITIONS Operating conditions depend on the choice of glass and seals: Borosilicate glass tempered Sight glass  suitable  unsuitable ACI Industriearmaturen GmbH [email protected]