It is also named water Gauge Glass, boiler sight glass, liquid indicator glass, borosilicate sight glass, spares for level gauge,sight Glass,reflex glass,gauge glass,gauge glasses,level Gauge glass,reflex gauge glasses,transparent gauge glasses,transparent glasses,borosilicate glass,borosilicate reflex glasses,plain transparent glass,plain transparent Gauge Glass,cristal glass tempered,reflexion glass,reflex sight glass,borosilicate safety sight glass,transparent gauge,liquid level gauge.
The series include:
1)Reflex glass
2)Transparent glass
3) Round sight glass
1) Reflex gauge glass
Size:
400 x 34(30) x 17mm,370 x 34(30) x 17mm,340 x 34(30) x 17mm
320 x 34(30) x 17mm,300 x 34(30) x 17mm,280 x 34(30) x 17mm
250 x 34(30) x 17mm,218 x 34(30) x 17mm,190 x 34(30) x 17mm
165 x 34(30) x 17mm,140 x 34(30) x 17mm,115 x 34(30) x 17mm
Working temperature: 260 degree C, Working pressure: 4.0MPa
2) Plain gauge glass
Size:
400 x 34(30) x 17mm,370 x 34(30) x 17mm,340 x 34(30) x 17mm
320 x 34(30) x 17mm,300 x 34(30) x 17mm,280 x 34(30) x 17mm
250 x 34(30) x 17mm,218 x 34(30) x 17mm,190 x 34(30) x 17mm
165 x 34(30) x 17mm,140 x 34(30) x 17mm,115 x 34(30) x 17mm
Working temperature: 260 degree C, Working pressure: 6.3 MPa
3) Round gauge glass
Thickness: 10mm-25mm
Diameter: 50mm - 250mm
Pressure: 6 - 25 bar
Temperature: 250 degree C
Level Gauge Glass Physical Property |
Testing Item | Standard Rules |
1. Appearance | 1) Air bubble: Diameter≤0.5mm,in the 10mm x 10mm area the quantity must be ≤3. Diameter from 0.5mm to 1.5mm dispersive air bubble,there is less 2 on the sight plane and less 5 on the No-sight plane. Their distance must be >40mm. The air bubble of Diameter from 1.5mm to 2mm ≤3 on the No-sight plane. Their distance must >40mm. On the sight plane, The distance to the side in 7.5mm,the air bubble of the diameter2) The glass don’t allow slag and scrap iron,etc. impurity. 3) Stripe : don’t allow have palpable filaceous and pectinate stripe on the sight plane. 4) Cockle: In the side face,don’t allow have the cockle of depth >1mm. 5) Crack: don’t allow have crack. 6) Scrape: On the sight plane and in the 7.5mm to edge,the scrape of less than 10mm don’t allow more 2 strips. 7) The sight plane must be polishing,and sealing side must be rubbing and polishing. |
2. Colour and Lustre | It should be no color and transparent,and with its self tine green is allowed. |
3. Water-resistance | Cooked in the water for 5 hours,then weigh up ,then titration with 25ml 0~31 ug/g |
4. Alkali-resistance | Cooked in the 0.5N NaoH for 3 hours,then Weigh up,weightlessness should be ≤75 mg/dm2 |
5. Temperature-resistance impacts capability | Put it into electric cooker,keep for 7min under the temperature of 260°C±1°C,then,put into the water of 20±1°C,it should not crack |
6. Bend-resistance | ≥80 MPa |