应用:
该类型止回阀用于不锈钢管道系统内,以达到防止流体回流的目的。
技术数据:
若止回阀被安装在一根垂直的管道内,开启阀门所需的压力大约为300-600kpa,最大输送物料压力为800kpa,使用温度范围根据密封件材质的选择而不同,一般常用的三元乙丙橡胶(epdm)是-10℃~ 140℃
材质:
钢制部分:不锈钢304,≤0cr18ni9≥,≤1.4301≥ 不锈钢316l≤00cr17ni14m02≥,≤1.4404≥
密封圈:硅橡胶(vmq),氟橡胶(fpm) 三元乙丙(epdm)
rz11-sms size | a | b | c | d | e | t |
25 | 64 | 20 | 68 | 25.4 | 53.6 | 1.5 |
32 | 64 | 20 | 68 | 31.8 | 53.6 | 1.5 |
38 | 71 | 21 | 76 | 38.1 | 60.6 | 1.5 |
51 | 86 | 22 | 86 | 50.8 | 74.6 | 1.5 |
63 | 100 | 24 | 102 | 63.5 | 87.6 | 2.0 |
76 | 112 | 26 | 110 | 76.2 | 97.5 | 2.0 |
89 | 123 | 26 | 120 | 88.9 | 109.5 | 2.0 |
102 | 143.5 | 31 | 135 | 101.6 | 129.5 | 2.0 |
rz11-din size | a | b | c | e | din11850-1 din11850-2 dxt dxt |
dn25 | 64 | 20 | 68 | 53.5 | 28x1.5 29x1.5 |
dn32 | 64 | 20 | 68 | 53.5 | 34x1.5 35x1.5 |
dn40 | 71 | 21 | 76 | 60.5 | 40x1.5 41x1.5 |
dn50 | 86 | 22 | 86 | 74.6 | 52x1.5 53x1.5 |
dn65 | 18 | 25 | 102 | 94.6 | 70x2 70x2 |
dn80 | 123 | 26 | 120 | 109.5 | 85x2 85x2 |
dn100 | 145.3 | 31 | 135 | 129.5 | 104x2 104x2 |
rz11-3a size | a | b | c | d | e | t |
1” | 64 | 20 | 68 | 25.4 | 53.6 | 1.65 |
1.25“ | 64 | 20 | 68 | 31.8 | 53.6 | 1.65 |
1.5” | 71 | 21 | 76 | 38.1 | 60.6 | 1.65 |
2“ | 86 | 22 | 86 | 50.8 | 74.6 | 1.65 |
2.5” | 100 | 24 | 102 | 63.5 | 87.5 | 1.65 |
3“ | 112 | 26 | 110 | 76.2 | 97.5 | 1.65 |
4” | 143.5 | 31 | 135 | 101.6 | 129.5 | 2.1 |