SG-YL impeller sight glass
1. product overview impeller sight glass, also known as water flow indicator, depending on the water, is a pipe sight glass. The impeller sight glass is widely used in the production equipment of the cooling system, lubrication system, and fuel supply system in the petroleum, chemical, power plant and other industries. It can observe the flow of liquid, gas, steam and other media in the pipeline at any time. It is indispensable to ensure normal production. Accessories. 2. features: 1. The shell adopts integrated design and casting, with beautiful appearance and high precision, and stronger compression resistance. 2, the manufacturing process of numerical control, the quality is more reliable. 3. The installation method is vertical and horizontal, and the installation is more convenient. 4, double window structure, high perspective, more convenient observation
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SG-YL impeller sight glass

1. Product Overview
Impeller sight glass, also known as water flow indicator, depending on the water, is a pipe sight glass. The impeller sight glass is widely used in the production equipment of the cooling system, lubrication system, and fuel supply system in the petroleum, chemical, power plant and other industries. It can observe the flow of liquid, gas, steam and other media in the pipeline at any time. It is indispensable to ensure normal production. Accessories.
2. features:
1. The shell adopts integrated design and casting, with beautiful appearance and high precision and stronger compression resistance.
2, the manufacturing process of numerical control, the quality is more reliable.
3. The installation method is vertical and horizontal, and the installation is more convenient.
4. Double window structure, high perspective, more convenient observation.
5. The window is easy to disassemble, and the integrated design of maintenance and maintenance is more reasonable.
3. technical parameters
| Model | SG-YL-11(W)/ SG-YL-41(W) | Nominal diameter | DN15~DN200 |
| Applicable media | Water, oil, gas and acid, alkaline liquid | Nominal pressure | 0.4~2.0(MPa) |
| Working temperature | 0-150(℃) | Thermometer Interface | M16X1.5/M20X1.5/NPT1/2 |
4. product material:
| Shell material | Stainless steel, carbon steel |
| Window Material | tempered borosilicate glass |
| Material of impeller | Teflon |
| Seal material | nitrile rubber |
5. dimensions

SG-YL-11(W) threaded connection
| Nominal diameter | ZG | L | W | H | B |
| DN15(mm) | 1/2 | 90 | 57 | 60 | 56 |
| DN20(mm) | 3/4 | 100 | 54 | 60 | |
| DN25(mm) | 1 | 100 | 56 | 60 | |
| DN32(mm) | 1 1/4 | 110 | 70 | 70 | |
| DN40(mm) | 1 1/2 | 120 | 78 | 80 | 46 |
| DN50(mm) | 2 | 135 | 93 | 90 |

SG-YL-41(W) flange connection
| Nominal diameter (DN) | L | Φ |
| DN15(mm) | 150 | 95/90 |
| DN20(mm) | 160 | 105/100 |
| DN25(mm) | 160 | 115/110 |
| DN32(mm) | 170 | 140/115 |
| DN40(mm) | 180 | 150/125 |
| DN50(mm) | 190 | 165/150 |
| DN65(mm) | 200 | 185/180 |
| DN80(mm) | 200 | 200/190 |
| DN100(mm) | 230 | 220/230 |
| DN125(mm) | 260 | 250/255 |
| DN150(mm) | 290 | 285/280 |
| DN200(mm) | 380 | 340/345 |
6. Selection Description

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