Collection: Circular Sight Glass

Circular Sight Glass is used in chemical, petroleum, water treatment and other industrial pipeline lines. Stainless steel direct-viewing mirror adopts two pieces of high-borosilicate steel glass, which can observe the liquid flow, color and other parameters in the pipeline under the external natural light to ensure the production process and quality of products.

Medium temperature:200°C
The material: Stainless steel 304,316, cast, carbon steel
Pipe thickness:4-20mm
Bolts:A4-70
Model: DN20-DN250
Name: Flow sight glasses, neck sight glass,
Scope of application
Various chemical pipeline
The connection form: flange
Type (channel location): Straight through
Flow direction: two-way, four-way, T style
Drive way: customized
Applicable medium: water
Pressure:1.0-2.5Mpa
Glass material &temperature
DIN7080. borosilicate glass, max. 280°C +mica shield max 300°C
DIN8902. soda-lime glass max. 150°C
Quartz glass, max. 1000°C
Alumino-silicate glass, high pressure resistant
Seal gasket
EPDM,150°C
Graphite,270°C
PTFE,200°C
FKM,200°C
NBR,100°C
Metal,200°C
Silicone,200°C

DIN 7080 Sight GlassDIN 8902 Sight Glass


DIN 7080 Structure

86 products
  • 34''NPT Hex Flat top SS oil indicator,high temperature resistant,Max temperature,oil level gauge,Knob Type sight glass
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    $12.80
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    $12.80
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  • Vent cap,Dust-proof vent cap, oil sight glass, aluminum alloy oil plug, air vent oil plug for reducer
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    $0.00
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  • Hydraulic Oil Sight Glass Level Gauge Window Float Eye Hydraulic Oil Level Gauge Indicator
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    $1.00
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    $1.00
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  • Oil Sight Glass Level Gauges Hydraulic Oil Level Gauge Indicator
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    $1.00
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    $1.00
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  • Anti ultra pressure sight glass & ultra pressure resistant sight glass(10Mpa,350c°,DN50-PN4.0,ss304)
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    $1.00
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    $1.00
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  • Flange sight glass assembly of anti-high pressure(100 bar,80 degree)
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    $1.00
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    $1.00
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  • Sight Glass Level Valves & Tubes
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    $8.00
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    $8.00
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    $10.00
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  • Tubular Liquid Level Gauge - Sight Glasses
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    $55.00
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    $55.00
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  • Tubular Sight Glass & Gage Glass
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    $9.00
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    $9.00
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  • Sight glass disc DIN28120 & weld- type sight glass assemblies
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    $300.00
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    $300.00
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    $320.00
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  • Industrial Threaded Sight Glass Window
    Industrial Threaded Sight Glass Window
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    $8.50
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    $8.50
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  • Borosilicate glass sight glasses
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    $10.00
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    $10.00
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