Single port exhaust are usually applied on the pipelines of independent heating System,central heating supply system, heating boiler central air- conditioning, floor heating and air heating system.
Because there are certain air solubles in water and the air solubility decrease when the temperature rise, then the air separate from water. During water cycle, it gradually comes together to form larger bubbles or air column,It usually produce gas for the water supplement.
▪ The float of the exhaust valve is made of low-density PP material which will not deform even if it is immersed in high temperature water for a long time.
▪It won’t make it difficult to move the pontoon.
▪The float lever is made of hard plastic, and the connection between the lever and the float and the support is movable, so it will not corrode in long-term operation, resulting in the system not working and water leakage.
▪The seal end face part of the lever is supported by a spring, which can expand and contract correspondingly with the movement of the lever to ensure the sealing under the condition of no exhaust.
| DN | A | øD | øD1 | øD2 | f | N-ød | b | H |
| DN50-PN16（PN25） | ø182 | ø165 | ø125 | ø99 | 3 | 4-ø19 | 19 | 221 |
| DN65-PN16 | ø182 | ø185 | ø145 | ø118 | 3 | 4-ø19 | 19 | 221 |
| DN85-FN25 | ø182 | ø185 | ø145 | ø118 | 3 | 8-ø19 | 19 | 221 |
| DN80-PN16（PN25） | ø237 | ø200 | ø160 | ø132 | 3 | 8-ø19 | 22 | 278.5 |
| DN100-PN16 | ø237 | ø220 | ø180 | ø154 | 3 | 8-ø19 | 23 | 278.5 |
| DN100-PN25 | ø237 | ø235 | ø190 | ø156 | 3 | 8-ø23 | 23 | 278.5 |
| DN125-PN16 | ø295 | ø250 | ø210 | ø184 | 3 | 8-ø19 | 25 | 339.5 |
| DN125-PN25 | ø295 | ø270 | ø220 | ø188 | 3 | 8-ø28 | 25 | 339.5 |
| DN150-PN16 | ø295 | ø285 | ø240 | ø210 | 3 | 8-ø23 | 25 | 339.5 |
| DN150-PN25 | ø295 | ø300 | ø250 | ø218 | 3 | 8-ø28 | 25 | 339.5 |
