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BLR/SG Sight Glass
General Description：
BLR/SGN Series Sight Glasses are used in Refrigeration and AC System Liquidline used to indicate the humidity rate and Refrigeration Flow Direction.It has a humidity indicator to show the humidity rate of refrigerant by changing color of the indicator. Using PTFE sealing material suitable for different refrigerant and refrigerant oil, and with good capacity of sealing.Also using exploration-proof pressing connection, it is easy to watch and safe.
Features ：
◆ Suitalble for HCFC/HFC
◆ Used to indicate the rate of humidity of refrigerant
◆ Refrigerant liquid is without super-cooling indicate
◆ Used to indicate refrigerant not enough
◆ Two way of connection: Solder & SAE
Technical Data ：
| Model | Connection | A | B | ØC | ØD | E | F | L | S | Thread M | Weight (g) |
| BLR/SG-014S | 1/4 ODF | 8.5 | 14.5 | 26.5 | 6.5 | 7 | 27 | 100 | 14 | ----- | 96 |
| BLR/SG-014 | 1/4 SAE | --- | --- | 14 | 64 | 7/16-20UNF | 100 | ||||
| BLR/SG-038S | 3/8 ODF | 10.1 | 8 | 36 | 118 | ----- | 105 | ||||
| BLR/SG-038 | 3/8 SAE | --- | --- | 17 | 70 | 5/8-18UNF | 110 | ||||
| BLR/SG-012S | 1/2 ODF | 11.5 | 16.5 | 12.8 | 10 | 46 | 144 | 19 | ----- | 150 | |
| BLR/SG-012 | 1/2 SAE | --- | --- | 19 | 78 | 3/4-16UNF | 165 | ||||
| BLR/SG-058S | 5/8 ODF | 13 | 18 | 16.1 | 14 | 49 | 150 | 22 | ----- | 185 | |
| BLR/SG-058 | 5/8 SAE | --- | --- | 20 | 78 | 7/8-14UNF | 188 | ||||
| BLR/SG-034S | 3/4 ODF | 14 | 20 | 31.5 | 19.1 | 16 | 51 | 166 | 24 | ----- | 240 |
| BLR/SG-034 | 3/4 SAE | --- | --- | 23 | 94 | 1-1/16-14UNF | 285 | ||||
| BLR/SG-078S | 7/8 ODF | 15.5 | 21.5 | 22.3 | 17 | 54 | 172 | 27 | ----- | 290 |
| Item | Model | Connection | Picture |
| Double Head Sight Glass with Solder Connection | BLR/DSGN 22 | 7/8" |
 |
| BLR/DSGN-28 | 1-1/8" | ||
| BLR/DSGN-35 | 1-3/8" | ||
| BLR/DSGN-42 | 1-5/8" | ||
| BLR/DSGN-54 | 2-1/8" | ||
| BLR/DSGN-66 | 2-5/8" | ||
| Male & Female Connection Combined Sight Glass(F:Means Male Flare M:Means o Ring Connection) | BLR/SGN-038FM | 3/8 |
 |
| BLR/SGN-012FM | 1/2 | ||
| O ring & Female SAE Combined Sight Glasss(F:Means Male Flare M:Means o Ring Connection) | BLR/SGN-9/16"FMO | 9/16"Female SAE |
 |
| BLR/SGN-11/16"FMO | 11/16"Female SAE | ||
| BLR/SGN-3/8"FMO | 3/8 Female SAE | ||
| BLR/SGN-1/2"FMO | 1/2 Female SAE | ||
| Sight Glass Screw Head for Sight Glass | BLR/SGNH-1/4 | 1/4 |
 |
| BLR/SGNH-3/8 | 3/8 | ||
| BLR/SGNH-1/2 | 1/2 | ||
| BLR/SGNH-5/8 | 5/8 | ||
| BLR/SGNH-3/4 | 3/4 | ||
| Sight Glass Screw Head for Receiver & Oil Reservoir | BLR/SGN-1/2 NPT | 1/2" NPT SW27 |
 |
| BLR/SGN-3/4 NPT | 3/4" NPT SW30 | ||
| BLR/SGN-G1/2 | G1/2" | ||
| BLR/SGN-G3/4 | G3/4" |
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