Aerre Inox Sight Glass BIO SLO - double window


The Sanitary Flow Indicator BIO series is a compact double window design, suitable for a wide range of applications in high purity tubing systems and may be installed in any position to observe fluid flow. This feature ensures that the sight glasses are free-draining and avoids the possibility of fluid retention. The sight flow indicator is usually employed to detect either the presence or absence of solutions, or to observe fluid for turbulence, colour or clarity. The Sanitary Flow Indicator BIO series are ideal for high purity applications and are easy to install.

Sizes 1/2" to 4"
Max. pressure -1 bar to 6 bar
Temp. range -80°C to 150°C
Connections Tri-Clamp
Material - Body: 1.4404 (316L)
- Glass: Borosilicate
- O-ring: FKM
Surface finish Interior surfaces SF1
Certificates (standard) 3.1 material, FDA, USP Class VI 121°C, {87}, {88}, PED, TSE/BSE, CE1935/2004
Certificates (optional) 2.2 surface finish, ATEX 2GD



  • Other materials O-ring available
  • Autoclavable, CIP/SIP
  • Each Sanitary Flow Indicator BIO is marked with code, material and Heat No. for full lot traceability