| HUALI | d | D | H | H1 | d1 |
| HL-2302012 | 12 | 22 | 14 | 10 | 20 |
| HL-2302016 | 16 | 27 | 14 | 10 | 24.5 |
| HL-2302020 | 20 | 34 | 16 | 13 | 32 |
| HL-2302025 | 25 | 40 | 16 | 13 | 31.7 |
| HL-2302032 | 32 | 48 | 18.5 | 13 | 45 |
| HL-2302040 | 40 | 58 | 18 | 13 | 55 |
| 选型示例：HL.23020-12 | |||||
2.resistant to solvents,oils with additives ,greases, acids and alkali.
3.avoid contact with alcohol and detergents containing alcohol.
4.anodized aluminium star-shaped contrast screen and central level sight hole.
5.NBR synthetic rubber packing ring.
6.maximum working temperature 110degree at normal pressure..
