Marine Flow Sight Glass Sight Glass CB/T422-1993

Details of Marine Sight Glass Cast Flange Sight Glass
I. Product Application:

Used for measuring or observing the turbidity of liquid and gas media and whether they are flowing.

II. Product Features:

1. The integrated casting design of the valve body conforms to the manufacturing process of instrument valves, with an aesthetically pleasing and highly precise appearance, and stronger pressure resistance.

2. CNC manufacturing process ensures more reliable quality.

3. Diversified connection methods adapt to a wider range of industry standards.

4. Vertical and horizontal installation options make disassembly more convenient.

5. Dual-window structure provides high transparency for easier observation.

6. The window is easy to disassemble, and the integrated design for maintenance and upkeep is more reasonable.

III. Instrument Materials:

Body Material: Carbon steel, stainless steel, copper

Window Material: Tempered borosilicate glass, quartz glass, aluminosilicate glass

Tempered borosilicate glass: Pressure resistance 2.5MPa, temperature resistance ≤200°C

Quartz glass: Pressure resistance 10MPa, temperature resistance ≤1000°C

Aluminosilicate glass: Pressure resistance 6.4MPa, temperature resistance ≤450°C

Sealing Material: Nitrile rubber, polytetrafluoroethylene

Maintenance and Care of Glass Windows

1. The turbine sight glass is used to observe the flow reaction equipment of liquids, gases, steam, and other media. Its window glass should be kept clean and free of dust.

2. The window glass of the turbine sight glass is a fragile component. Handle with care during installation.

3. The temperature and pressure resistance of the sight glass have certain limitations, depending on the actual situation.

The following provides physical experimental parameters for national standard glass manufacturing processes:

Temperature Resistance: Tempered borosilicate glass ≤200°C, quartz glass ≤1000°C, aluminosilicate glass ≤450°C

Pressure Resistance: Tempered borosilicate glass sheet ≤2.5MPa, quartz glass sheet ≤10.0MPa, aluminosilicate glass ≤6.4MPa

4. Allowable sudden temperature change <60°C. Glass may crack due to excessive temperature differences.

Glass Testing Standards: Designed, manufactured, and accepted in accordance with the "Chemical Pipeline Handbook" and HGJ501-502-86 "Pressure Vessel Sight Glass."

Connection Method: Flange type (national standard). Note: Flange standards can be customized to American, Japanese, or German standards based on customer needs.

Types:

SG-II Straight-through type

SG-III Three-way type

SG-BB Swing plate type

SG-BL Glass tube type

SG-ZZ Pointer type

SG-NZ Non-return type

Model SG is equivalent to SJ

Flange Connection Flow Indicator

- Model: SG-YL-1

- Specifications: DN15-DN250 (ANSI 1/2”–10”)

- Pressure Resistance: 0.6/1.0/16/25/40 bar

- Temperature Resistance: 0°C–195°C

- Materials: Stainless steel, carbon steel, or others

- Turbine: Made of Teflon, available in red and blue for high visibility.

- Media: Water, oil, gas, acidic and alkaline liquids, or toxic gases.