China Marine Flat Sight Glass JIS F7234:
Marine Flat Sight Glass JIS F7234 is used to observe the water, fuel oil and lubrication oil of the overflow pipe lines of marine machinery parts.
Technical Specification:
Design & Manufacturing Standard: JIS F7234-1995
Test Standard: JIS 7400
Hydraulic Test Pressure: Body- 1.5times of max working pressure (5K-7.5kgf/cm2, 10K-15kgf/cm2)
Flange Standard: JIS B2220 - 5K/10K
Using Standard:
Fluid Condition Max Working Temp (℃) Nominal Pressure Max Working Pressure(Mpa) Water 100 5K 0.49 10K 0.98 Lubrication Oil 200 5K 0.49 10K 0.98 Fuel Oil under 60 5K 0.49 10K 0.98 60~150 5K 0.49 10K 0.98 150~230 5K 0.49 10K 0.98
Main Material:
| Fluid Condition | Max Working Temp (℃) | Nominal Pressure | Max Working Pressure(Mpa) |
| Water | 100 | 5K | 0.49 |
| 10K | 0.98 | ||
| Lubrication Oil | 200 | 5K | 0.49 |
| 10K | 0.98 | ||
| Fuel Oil | under 60 | 5K | 0.49 |
| 10K | 0.98 | ||
| 60~150 | 5K | 0.49 | |
| 10K | 0.98 | ||
| 150~230 | 5K | 0.49 | |
| 10K | 0.98 |
1-Body: Cast Iron (FC200 or FCD400,FCD450)
2-Flat Glass: tempered glass
3-Cover: Cast Iron (FC200 or FCD400,FCD450)
4-Flapper: Stainless Steel ( SUS304)
Main Size List(mm):
| Series | DN | |||||||||
| 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | ||
| Series A | L | 150 | 150 | 170 | 200 | 200 | 220 | 250 | 270 | 320 |
| C | 40 | 40 | 50 | 70 | 70 | 80 | 100 | 120 | 150 | |
| Series B | L | 140 | 150 | 160 | 200 | 200 | 220 | 250 | 270 | 320 |
| C | 40 | 50 | 50 | 60 | 60 | 65 | 80 | 102 | 125 | |
| Series C | L | 150 | 150 | 150 | 180 | 180 | 190 | 240 | 260 | 300 |
| C | 42 | 42 | 42 | 62 | 62 | 70 | 105 | 120 | 145 | |