Reliable container flow indicator for visual monitoring!

Within closed pipework or pressure tanks, it can be helpful to install sight flow indicators to visually monitor and control the media. The sight flow indicator allows you to monitor the direction of flow, and to check for foreign particles, which could damage the machine or the application. That makes the sight flow indicator perfect for visual monitoring, for example in a round, oval or rectangular shape. The construction resembles DIN 28120 or DIN 128121, which allows for easy welding. NieRuf is your partner for high-quality sight flow indicators.

Filter

Product configurator

Sight glass fitting DN50 - 2" Inch aus stainless steel 1.4571 to be welded directly to tank Glas borosilicate glass 0,0 bar pressureless

diameter:

DN50 - 2" Inch

connection:

to be welded directly to tank

seal:

C4400

design:

to be welded directly to tank

max. working pressure:

0,0 bar

NieRuf-Exchange
€156.30*

€186.00 VAT included.

Delivery time: in stock

Express delivery:

Screwed Sight glass fitting DN80 - 3" Inch aus stainless steel 1.4404 to be welded directly to tank acc. DIN 11851 Glas borosilicate glass 6,0 bar

diameter:

DN80 - 3" Inch

connection:

to be welded directly to tank acc. DIN 11851

seal:

NBR

design:

for screwing

max. working pressure:

6,0 bar

NieRuf-Exchange
€123.90*

€147.44 VAT included.

Delivery time: in stock

Express delivery:

flow-through sight flow indicator 3/4" borosilicate glass Typ GS03 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

NieRuf-Exchange
€243.30*

€289.53 VAT included.

Delivery time: in stock

Express delivery:

Sight glass fitting DN80 - 3" Inch aus stainless steel 1.4571 to be welded directly to tank Glas borosilicate glass 2,5bar

diameter:

DN80 - 3" Inch

connection:

to be welded directly to tank

seal:

C4400

design:

to be welded directly to tank

max. working pressure:

2,5bar

NieRuf-Exchange
€242.00*

€287.98 VAT included.

Delivery time: in stock

Express delivery:

Screwed Sight glass fitting DN65 - 2 1/2" Inch aus stainless steel 1.4404 to be welded directly to tank acc. DIN 11851 Glas borosilicate glass 6,0 bar

diameter:

DN65 - 2 1/2" Inch

connection:

to be welded directly to tank acc. DIN 11851

seal:

NBR

design:

for screwing

max. working pressure:

6,0 bar

NieRuf-Exchange
€92.40*

€109.96 VAT included.

Delivery time: in stock

Express delivery:

Screwed Sight glass fitting DN32 - 1 1/4" inch aus stainless steel 1.4404 to be welded directly to tank acc. DIN 11851 Glas borosilicate glass 6,0 bar

diameter:

DN32 - 1 1/4" inch

connection:

to be welded directly to tank acc. DIN 11851

seal:

NBR

design:

for screwing

max. working pressure:

6,0 bar

NieRuf-Exchange
€71.70*

€85.32 VAT included.

Delivery time: in stock

Express delivery:

Screwed Sight glass fitting DN150 - 6" Inch aus stainless steel 1.4404 to be welded directly to tank acc. DIN 11851 Glas borosilicate glass 6,0 bar

diameter:

DN150 - 6" Inch

connection:

to be welded directly to tank acc. DIN 11851

seal:

NBR

design:

for screwing

max. working pressure:

6,0 bar

NieRuf-Exchange
€635.10*

€755.77 VAT included.

Delivery time: in stock

Express delivery:

Screwed Sight glass fitting DN40 - 1 1/2" Inch aus stainless steel 1.4404 to be welded directly to tank acc. DIN 11851 Glas borosilicate glass 6,0 bar

diameter:

DN40 - 1 1/2" Inch

connection:

to be welded directly to tank acc. DIN 11851

seal:

NBR

design:

for screwing

max. working pressure:

6,0 bar

NieRuf-Exchange
€75.00*

€89.25 VAT included.

Delivery time: in stock

Express delivery:

Flange sight flow indicators from high-quality stainless steel, with flange or threaded conncetion

The flange sight flow indicator has to comply with a variety of guidelines, norms and requirements. We provide DIN 3237 valves from stock, whether you need borosilicate glass DIN 7080 or soda lime glass DIN 8902. The choice of the glass depends on the temperature or the media and the surrounding, as well as the pressure range of the media. Depending on the media, the sight flow indicator will be made from stainless steel (1.4408/V4A), brass or cast steel. Depending on the pipeline system, we provide sight flow indicators with flange or thread connection in sizes DN15, DN20 up to DN65 and DN80 up to DN200, or, for fast assembly with a female thread from ¼“ to ½“ and up to 2“ from stock. Please contact us for irregular sizes and special design.

Sight flow indicators with flap or PTFE spinner at low cost

Sight flow indicators are usually built into a pipeline system as flange sight flow indicators. Visual monitoring can be made easier by using a flap or a PTFE spinner, which move when there is flow. Container flow indicators however, are usually used within closed containers such as boilers, oil tanks and silos. This enables you to visually monitor the filling level. Please contact us if you need any help finding the right sight flow indicator, or simply order your sight flow indicator at low price and with fast delivery from our online shop.


FAQ

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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 info@nieruf.de

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.

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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.

Fax order: 07143 / 96669 - 01

07143 / 96669 - 00