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.
BS01000014
Sight glass fitting DN200 - 8" Inch aus stainless steel 1.4571 to be welded directly to tank Glas borosilicate glass 2,5bar
BS04000010
Sight glass fitting DN80 - 3" Inch aus stainless steel 1.4571 to be welded directly to tank Glas borosilicate glass 0,0 bar pressureless
GS04020007
sight flow indicator DN40 - 1 1/2" Inch aus stainless steel 1.4404 / AISI 316L to be welded directly to tank acc. DIN 11851 Glas borosilicate glass 10,0 bar
BS01000013
Sight glass fitting DN150 - 6" Inch aus stainless steel 1.4571 to be welded directly to tank Glas borosilicate glass 2,5bar
GS04020009
sight flow indicator DN65 - 2 1/2" Inch aus stainless steel 1.4404 / AISI 316L to be welded directly to tank acc. DIN 11851 Glas borosilicate glass 10,0 bar
BS04000011
Sight glass fitting DN100 - 4" Inch aus stainless steel 1.4571 to be welded directly to tank Glas borosilicate glass 0,0 bar pressureless
BS02000010
Sight glass fitting DN80 - 3" Inch aus stainless steel 1.4571 to be welded directly to tank Glas borosilicate glass
GS04020012
sight flow indicator DN125 - 5" Inch aus stainless steel 1.4404 / AISI 316L to be welded directly to tank acc. DIN 11851 Glas borosilicate glass 10,0 bar
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 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.
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You can reach us from Monday to Friday at +497143 9666900 and any time at sales@nieruf.com
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.
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