應用:
該類型止回閥用于不銹鋼管道系統內,以達到防止流體回流的目的。
技術數據:
若止回閥被安裝在一根垂直的管道內,開啟閥門所需的壓力大約為300-600kpa,最大輸送物料壓力為800kpa,使用溫度范圍根據密封件材質的選擇而不同,一般常用的三元乙丙橡膠(EPDM)是-10℃~+140℃
材質:
鋼制部分:不銹鋼304,≤0Cr18Ni9≥,≤1.4301≥ 不銹鋼316L≤00Cr17Ni14M02≥,≤1.4404≥
密封圈:硅橡膠(VMQ),氟橡膠(FPM) 三元乙丙(EPDM)
DIN Size | A | B | L | T |
DN15 | 62.5 | 19.0 | 75.0 | 1.5 |
DN20 | 62.5 | 23.0 | 75.0 | 1.5 |
DN25 | 77.5 | 29.0 | 78.0 | 1.5 |
DN32 | 77.5 | 35.0 | 78.0 | 1.5 |
DN40 | 89.0 | 41.0 | 80.0 | 1.5 |
DN50 | 105.0 | 53.0 | 86.0 | 1.5 |
DN65 | 134.0 | 70.0 | 97.0 | 2.0 |
DN80 | 145.0 | 85.0 | 105.0 | 2.0 |
DN100 | 158.5 | 104.0 | 105.0 | 2.0 |
3A Size | A | B | B | L2 | T | L |
1/2" | 62.5 | 12.7 | 25.4 | 88.6 | 1.65 | 75.0 |
3/4" | 62.5 | 19.05 | 25.4 | 88.6 | 1.65 | 75.0 |
1" | 77.5 | 25.4 | 50.5 | 88.6 | 1.65 | 78.0 |
1 1/2" | 89.0 | 38.1 | 50.5 | 94.3 | 1.65 | 80.5 |
2" | 105.0 | 50.8 | 64.0 | 105 | 1.65 | 86.0 |
2 1/2" | 118.5 | 63.5 | 77.5 | 116 | 1.65 | 97.0 |
3" | 134.0 | 76.2 | 105 | 123.5 | 1.65 | 105 |
4" | 158.5 | 101.6 | 105 | 123.5 | 2.1 | 105 |