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.

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female thread sight flow indicator DN8 - 1/4" Inch Typ GS01 grey cast iron GG25 soda lime glass graphit max 16 bar

diameter:

DN8 - 1/4" Inch

connection:

female thread

seal:

graphit

design:

straightway form

max. working pressure:

max 16 bar

Certified
€103.70*

€123.40 VAT included.

Delivery time: in stock

Express delivery:

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

diameter:

DN10 - 3/8" Inch

connection:

female thread

seal:

graphit

design:

straightway form

max. working pressure:

max 16 bar

Certified
€103.70*

€123.40 VAT included.

Delivery time: in stock

Express delivery:

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

diameter:

DN10 - 3/8" Inch

connection:

female thread

seal:

graphit

design:

straightway form

max. working pressure:

max 16 bar

NieRuf-Exchange
Certified
€198.80*

€236.57 VAT included.

Delivery time: in stock

Express delivery:

female thread sight flow indicator DN20 - 3/4" Inch Typ GS01 grey cast iron GG25 soda lime glass graphit max 16 bar

diameter:

DN20 - 3/4" Inch

connection:

female thread

seal:

graphit

design:

straightway form

max. working pressure:

max 16 bar

Certified
€138.30*

€164.58 VAT included.

Delivery time: in stock

Express delivery:

flow-through sight flow indicator DN8 - 1/4" Inch Typ GS03 stainless steel soda lime glass graphit max 16 bar

diameter:

DN8 - 1/4" Inch

connection:

female thread

seal:

graphit

design:

straightway form

max. working pressure:

max 16 bar

NieRuf-Exchange
Certified
€198.80*

€236.57 VAT included.

Delivery time: in stock

Express delivery:

flow-through sight flow indicator DN50 - 2" Inch Typ GS03 stainless steel soda lime glass graphit max 16 bar

diameter:

DN50 - 2" Inch

connection:

female thread

seal:

graphit

design:

straightway form

max. working pressure:

max 16 bar

NieRuf-Exchange
Certified
€1,005.20*

€1,196.19 VAT included.

Delivery time: in stock

Express delivery:

flow-through sight flow indicator 1 1/4" borosilicate glass Typ GS03 borosilicate glass graphit max 16 bar

diameter:

DN32 - 1 1/4" inch

connection:

female thread

seal:

graphit

design:

straightway form

max. working pressure:

max 16 bar

NieRuf-Exchange
Certified
€468.00*

€556.92 VAT included.

Delivery time: in stock

Express delivery:

flange sight flow indicator DN15 design with PTFE-spinner Typ FS01 grey cast iron GG25 borosilicate glass graphit max 16 bar

diameter:

DN15 - 1/2" Inch

connection:

flange PN16

seal:

graphit

design:

straightway form

max. working pressure:

max 16 bar

Certified
€244.80*

€291.31 VAT included.

Delivery time: 2 - 3 weeks

flange sight flow indicator DN15 borosilicate glass Typ FS01 grey cast iron GG25 graphit max 16 bar

diameter:

DN15 - 1/2" Inch

connection:

flange PN16

seal:

graphit

design:

straightway form

max. working pressure:

max 16 bar

Certified
€138.30*

€164.58 VAT included.

Delivery time: 2 - 3 weeks

flange sight flow indicator DN32 cast iron Typ FS02 borosilicate glass max 16 bar

diameter:

DN32 - 1 1/4" inch

connection:

flange PN16

seal:

graphit

design:

straightway form

max. working pressure:

max 16 bar

Certified
€354.30*

€421.62 VAT included.

Delivery time: 2 - 3 weeks

sight flow indicator 1/4" design with disc Typ GS02 borosilicate glass graphit max 16 bar

diameter:

DN8 - 1/4" Inch

connection:

female thread

seal:

graphit

design:

straightway form

max. working pressure:

max 16 bar

Certified
€249.20*

€296.55 VAT included.

Delivery time: 2 - 3 weeks

flange sight flow indicator DN100 - 4" Inch grey cast iron GG25 Typ FS01 soda lime glass graphit max 16 bar design with disc

diameter:

DN100 - 4" Inch

connection:

flange PN16

seal:

graphit

design:

straightway form

max. working pressure:

max 16 bar

Certified
€902.90*

€1,074.45 VAT included.

Delivery time: 2 - 3 weeks

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

diameter:

DN200 - 8" Inch

connection:

flange PN16

seal:

graphit

design:

straightway form

max. working pressure:

max 16 bar

Certified
€6,166.10*

€7,337.66 VAT included.

Delivery time: 2 - 3 weeks

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

diameter:

DN65 - 2 1/2" Inch

connection:

flange PN16

seal:

graphit

design:

straightway form

max. working pressure:

max 16 bar

Certified
€1,206.80*

€1,436.09 VAT included.

Delivery time: 2 - 3 weeks

flange sight flow indicator DN125 design with disc Typ FS01 grey cast iron GG25 borosilicate glass graphit max 16 bar

diameter:

DN125 - 5" Inch

connection:

flange PN16

seal:

graphit

design:

straightway form

max. working pressure:

max 16 bar

Certified
€1,242.80*

€1,478.93 VAT included.

Delivery time: 2 - 3 weeks

flange sight flow indicator DN32 design with PTFE-spinner Typ FS01 grey cast iron GG25 borosilicate glass graphit max 16 bar

diameter:

DN32 - 1 1/4" inch

connection:

flange PN16

seal:

graphit

design:

straightway form

max. working pressure:

max 16 bar

Certified
€345.60*

€411.26 VAT included.

Delivery time: 2 - 3 weeks

flange sight flow indicator DN80 design with disc Typ FS01 grey cast iron GG25 borosilicate glass graphit max 16 bar

diameter:

DN80 - 3" Inch

connection:

flange PN16

seal:

graphit

design:

straightway form

max. working pressure:

max 16 bar

Certified
€757.50*

€901.43 VAT included.

Delivery time: 2 - 3 weeks

flow-through sight flow indicator 3/4" soda lime glass Typ GS03 graphit max 16 bar design with PTFE-spinner

diameter:

DN20 - 3/4" Inch

connection:

female thread

seal:

graphit

design:

straightway form

max. working pressure:

max 16 bar

Certified
€390.30*

€464.46 VAT included.

Delivery time: 2 - 3 weeks

female thread sight flow indicator 3/4" Typ GS01 grey cast iron GG25 borosilicate glass graphit max 16 bar

diameter:

DN20 - 3/4" Inch

connection:

female thread

seal:

graphit

design:

straightway form

max. working pressure:

max 16 bar

Certified
€159.90*

€190.28 VAT included.

Delivery time: 2 - 3 weeks

flange sight flow indicator DN80 stainless steel disc Typ FS03 soda lime glass max 16 bar design with disc

diameter:

DN80 - 3" Inch

connection:

flange PN16

seal:

graphit

design:

straightway form

max. working pressure:

max 16 bar

Certified
€1,716.50*

€2,042.64 VAT included.

Delivery time: 2 - 3 weeks

female thread sight flow indicator 3/8" design with disc Typ GS01 grey cast iron GG25 borosilicate glass graphit max 16 bar

diameter:

DN10 - 3/8" Inch

connection:

female thread

seal:

graphit

design:

straightway form

max. working pressure:

max 16 bar

Certified
€201.60*

€239.90 VAT included.

Delivery time: 2 - 3 weeks

flange sight flow indicator DN50 casti iron PTFE-spinner Typ FS02 borosilicate glass max 16 bar

diameter:

DN50 - 2" Inch

connection:

flange PN16

seal:

graphit

design:

straightway form

max. working pressure:

max 16 bar

Certified
€623.60*

€742.08 VAT included.

Delivery time: 2 - 3 weeks

sight flow indicator DN32 - 1 1/4" inch borosilicate glass Typ GS02 borosilicate glass graphit max 16 bar

diameter:

DN32 - 1 1/4" inch

connection:

female thread

seal:

graphit

design:

straightway form

max. working pressure:

max 16 bar

Certified
€485.30*

€577.51 VAT included.

Delivery time: 2 - 3 weeks

sight flow indicator DN25 - 1" Inch GS - C25 Typ GS02 soda lime glass graphit max 16 bar design with disc

diameter:

DN25 - 1" Inch

connection:

female thread

seal:

graphit

design:

straightway form

max. working pressure:

max 16 bar

Certified
€285.20*

€339.39 VAT included.

Delivery time: 2 - 3 weeks

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.


FAQ

There for you


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

Catalog

Quality


Our certified quality management according to DIN EN ISO 9001: 2015 is part of our DNA. With our test stands we can carry out pressure tests with up to 350 bar with air and water as well as leak tests according to DIN EN 122661.

This is NieRuf


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Commitment engenders trust. We stand by our word and are convinced that as a result not only our customers but also everyone we work with can rely on us.

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We always strive to find the best solution for our customers. It is our goal and incentive to have completely satisfied customers.

Competently

Technical and commercial expertise form the basis for developing qualified solutions tailored precisely to the needs of our customers.

Flexible

We do not adhere to rigid guidelines but instead focus on the individual wishes and needs of our customers. They are more important to us than internal company processes.

Contact

Contact

Do you need help?

For all questions we are available by phone

Mo - Fr 08:30 - 17:00

07143/96669 – 00

or send us an e-mail:

sales@nieruf.com

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Call NieRuf GmbH

Need help?

If you have any questions, we are available by phone from Monday to Friday from 8:30 a.m. to 5:00 p.m.

order via mail:

07143 / 96669 - 00