Sight-flow-indicator to monitor the flow

Sight flow indicator

Sight flow indicator for pipelines with thread or flange

Sight flow indicators can be used to monitor the flow and filling level in a pipeline. They are manufactured in a straightway form and have a window, which can be made of borosilicate glass DIN7080 or soda-lime-glass DIN8902. Which glass you choose depends on the medium in the pipeline and its resistance. Whenever you are dealing with a liquid or gaseous medium, a sight flow indicator should be used. This allows you to not only monitor the filling level in the pipes, but also to detect contamination which could damage the system. Additionally, it allows you to control the flow direction of the medium. Since some liquid and gaseous media are transparent, they are hard to monitor visually. That's why NieRuf offers three varieties of flow sight glasses. The standard model has a drip nozzle and can be used with liquid media such as water. The diameter of the drip nozzle is smaller than the diameter of the flow sight glass, which enables you to see detect the medium. But the sight flow indicator can also come with a rotor or a flap. The medium, whether it is a liquid or a gas, moves the rotor, thereby showing you the flow direction. In the sight flow indicator with flap, the medium must flow from bottom to top, otherwise the flap does not open. Once the medium flows through the pipeline, the movement of the flap indicates this.

Sight flow indicator for pipelines with thread or flange

flange sight flow indicator DN20 - 3/4" Inch GS - C25 borosilicate glass design with disc

FS02020104

flange sight flow indicator DN20 casti iron disc Typ FS02 borosilicate glass max 16 bar

Technical features

diameter DN20 - 3/4" Inch
connection flange PN16
seal graphit
design straightway form
max. working pressure max 16 bar

flow-through sight flow indicator DN10 - 3/8" Inch stainless steel soda lime glass design with disc

GS03010102

flow-through sight flow indicator DN10 - 3/8" Inch stainless steel Typ GS03 soda lime glass graphit max 16 bar design with disc

Technical features

diameter DN10 - 3/8" Inch
connection female thread
seal graphit
design straightway form
max. working pressure max 16 bar

sight flow indicator DN50 - 2" Inch GS - C25 borosilicate glass design with disc

GS02020108

sight flow indicator 2" design with disc Typ GS02 borosilicate glass graphit max 16 bar

Technical features

diameter DN50 - 2" Inch
connection female thread
seal graphit
design straightway form
max. working pressure max 16 bar

flow-through sight flow indicator DN15 - 1/2" Inch stainless steel borosilicate glass design with disc

GS03020103

flow-through sight flow indicator 1/2" design with disc Typ GS03 borosilicate glass graphit max 16 bar

Technical features

diameter DN15 - 1/2" Inch
connection female thread
seal graphit
design straightway form
max. working pressure max 16 bar

flow-through sight flow indicator DN10 - 3/8" Inch stainless steel borosilicate glass design with PTFE-spinner

GS03020202

flow-through sight flow indicator 3/8" design with PTFE-spinner Typ GS03 borosilicate glass graphit max 16 bar

Technical features

diameter DN10 - 3/8" Inch
connection female thread
seal graphit
design straightway form
max. working pressure max 16 bar

flange sight flow indicator DN150 - 6" Inch GS - C25 soda lime glass design with disc

FS02010113

flange sight flow indicator DN150 - 6" Inch GS - C25 Typ FS02 soda lime glass graphit max 10 bar design with disc

Technical features

diameter DN150 - 6" Inch
connection flange PN16
seal graphit
design straightway form
max. working pressure max 10 bar

flange sight flow indicator DN200 - 8" Inch GS - C25 borosilicate glass design with PTFE-spinner

FS02020214

flange sight flow indicator DN200 casti iron PTFE-spinner Typ FS02 borosilicate glass max 16 bar

Technical features

diameter DN200 - 8" Inch
connection flange PN16
seal graphit
design straightway form
max. working pressure max 16 bar

female thread sight flow indicator DN15 - 1/2" Inch grey cast iron GG25 borosilicate glass

GS01020003

female thread sight flow indicator 1/2" Typ GS01 grey cast iron GG25 borosilicate glass graphit max 16 bar

Technical features

diameter DN15 - 1/2" Inch
connection female thread
seal graphit
design straightway form
max. working pressure max 16 bar

female thread sight flow indicator DN40 - 1 1/2" Inch grey cast iron GG25 soda lime glass

GS01010007

female thread sight flow indicator DN40 - 1 1/2" Inch Typ GS01 grey cast iron GG25 soda lime glass graphit max 16 bar

Technical features

diameter DN40 - 1 1/2" Inch
connection female thread
seal graphit
design straightway form
max. working pressure max 16 bar

flange sight flow indicator DN100 - 4" Inch grey cast iron GG25 borosilicate glass design with disc

FS01020111

flange sight flow indicator DN100 design with disc Typ FS01 grey cast iron GG25 borosilicate glass graphit max 16 bar

Technical features

diameter DN100 - 4" Inch
connection flange PN16
seal graphit
design straightway form
max. working pressure max 16 bar

flange sight flow indicator DN65 - 2 1/2" Inch stainless steel soda lime glass

FS03010009

flange sight flow indicator DN65 - 2 1/2" Inch stainless steel Typ FS03 soda lime glass graphit max 16 bar

Technical features

diameter DN65 - 2 1/2" Inch
connection flange PN16
seal graphit
design straightway form
max. working pressure max 16 bar

sight flow indicator DN32 - 1 1/4" inch GS - C25 soda lime glass design with disc

GS02010106

sight flow indicator DN32 - 1 1/4" inch GS - C25 Typ GS02 soda lime glass graphit max 16 bar design with disc

Technical features

diameter DN32 - 1 1/4" inch
connection female thread
seal graphit
design straightway form
max. working pressure max 16 bar

flange sight flow indicator DN50 - 2" Inch grey cast iron GG25 soda lime glass

FS01010008

flange sight flow indicator DN50 - 2" Inch Typ FS01 grey cast iron GG25 soda lime glass graphit max 16 bar

Technical features

diameter DN50 - 2" Inch
connection flange PN16
seal graphit
design straightway form
max. working pressure max 16 bar

flange sight flow indicator DN125 - 5" Inch stainless steel borosilicate glass design with PTFE-spinner

FS03020212

flange sight flow indicator DN125 stainless steel PTFE-spinner Typ FS03 borosilicate glass graphit max 16 bar

Technical features

diameter DN125 - 5" Inch
connection flange PN16
seal graphit
design straightway form
max. working pressure max 16 bar

flange sight flow indicator DN200 - 8" Inch stainless steel soda lime glass design with disc

FS03010114

flange sight flow indicator DN200 stainless steel disc Typ FS03 soda lime glass max 10 bar design with disc

Technical features

diameter DN200 - 8" Inch
connection flange PN16
seal graphit
design straightway form
max. working pressure max 10 bar

flange sight flow indicator DN20 - 3/4" Inch GS - C25 borosilicate glass

FS02020004

flange sight flow indicator DN20 cast iron Typ FS02 borosilicate glass max 16 bar

Technical features

diameter DN20 - 3/4" Inch
connection flange PN16
seal graphit
design straightway form
max. working pressure max 16 bar

female thread sight flow indicator DN8 - 1/4" Inch grey cast iron GG25 borosilicate glass design with PTFE-spinner

GS01020201

female thread sight flow indicator 1/4" design with PTFE-spinner Typ GS01 grey cast iron GG25 borosilicate glass graphit max 16 bar

Technical features

diameter DN8 - 1/4" Inch
connection female thread
seal graphit
design straightway form
max. working pressure max 16 bar

flow-through sight flow indicator DN15 - 1/2" Inch stainless steel soda lime glass design with disc

GS03010103

flow-through sight flow indicator DN15 - 1/2" Inch stainless steel Typ GS03 soda lime glass graphit max 16 bar design with disc

Technical features

diameter DN15 - 1/2" Inch
connection female thread
seal graphit
design straightway form
max. working pressure max 16 bar

flange sight flow indicator DN200 - 8" Inch stainless steel borosilicate glass

FS03020014

flange sight flow indicator DN200 stainless steel Typ FS03 max 16 bar

Technical features

diameter DN200 - 8" Inch
connection flange PN16
seal graphit
design straightway form
max. working pressure max 16 bar

flange sight flow indicator DN125 - 5" Inch stainless steel soda lime glass

FS03010012

flange sight flow indicator DN125 - 5" Inch stainless steel Typ FS03 soda lime glass graphit max 16 bar

Technical features

diameter DN125 - 5" Inch
connection flange PN16
seal graphit
design straightway form
max. working pressure max 16 bar

flow-through sight flow indicator DN32 - 1 1/4" inch stainless steel soda lime glass

GS03010006

flow-through sight flow indicator DN32 - 1 1/4" inch Typ GS03 stainless steel soda lime glass graphit max 16 bar

Technical features

diameter DN32 - 1 1/4" inch
connection female thread
seal graphit
design straightway form
max. working pressure max 16 bar

female thread sight flow indicator DN10 - 3/8" Inch grey cast iron GG25 soda lime glass design with disc

GS01010102

female thread sight flow indicator DN10 - 3/8" Inch grey cast iron GG25 Typ GS01 soda lime glass graphit max 16 bar design with disc

Technical features

diameter DN10 - 3/8" Inch
connection female thread
seal graphit
design straightway form
max. working pressure max 16 bar

flange sight flow indicator DN125 - 5" Inch stainless steel borosilicate glass

FS03020012

flange sight flow indicator DN125 stainless steel Typ FS03 max 16 bar

Technical features

diameter DN125 - 5" Inch
connection flange PN16
seal graphit
design straightway form
max. working pressure max 16 bar

sight flow indicator DN10 - 3/8" Inch GS - C25 borosilicate glass design with PTFE-spinner

GS02020202

sight flow indicator DN10 - 3/8" Inch borosilicate glass Typ GS02 borosilicate glass graphit max 16 bar

Technical features

diameter DN10 - 3/8" Inch
connection female thread
seal graphit
design straightway form
max. working pressure max 16 bar

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High quality sigth-flow-indicator

Our sight flow indicators can be made of stainless steel 1.4408, cast iron GS-C 25 or grey cast iron GG25. Whether you choose soda-lime-glass or borosilicate glass, the sight glass is then mounted between the mounting and the base flange using screws. The manufacturer also includes a graphite-seal. Sight-flow-indicators with flap, drip nozzle and rotor can be manufactured as thread sight glasses or flange sight glasses. Thread sight glasses come with internal threads from ¼“ - 2“ inch. Flange sight glasses come in nominal sizes ranging from DN15 to DN200. They are approved for up to PN16, from nominal size DN150 on only for PN10. Sight-flow-indicators withstand temperatures of up to +150°C. They can be mounted in any position, just keep the flow direction in mind. Buy your sight-flow-indicator directly from our online shop, or call our hotline if you need help choosing the right one. We would love to help you find the sight glass that fits your application and medium.

We are here for you

Quality

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Special requests, spare parts or a quick support? Our staff will answer your questions and concerns immediately.

You can reach us from Monday to Friday at +497143 9666900 and any time at sales@nieruf.com

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FAQ

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