氣動薄膜調節閥的允許壓差,允許壓差分氣開式和氣關式,下面分別列表講述。
氣開式 單位:MPa
膜片有效面積Ae(cm2) | 280 | 400 | 600 |
信號范圍Pr(KPa) | 20-100 | 40-200 | 20-100 | 40-200 | 20-100 | 40-200 |
氣源壓力Ps(Mpa) | 0.14 | 0.25 | 0.14 | 0.25 | 0.14 | 0.25 |
需配附件 | - | P | - | P | - | P |
公 稱 通 徑 DN (mm) 及 閥 座 直 徑 d (mm) | 20 | 10 | 5.35 | 6.40 | | | | |
12 | 3.72 | 6.40 | | | | |
15 | 2.38 | 5.55 | | | | |
20 | 1.34 | 3.12 | | | | |
25 | 25 | 0.86 | 2.00 | | | | |
32 | 32 | | | 0.75 | 1.74 | | |
40 | 25 | | | 1.22 | 2.85 | | |
32 | | | 0.75 | 1.74 | | |
40 | | | 0.48 | 1.11 | | |
50 | 32 | | | 0.75 | 1.74 | | |
40 | | | 0.48 | 1.11 | | |
50 | | | 0.31 | 0.71 | | , |
65 | 65 | | | | | 0.27 | 0.63 |
80 | 50 | | | | | 0.46 | 1.07 |
65 | | | | | 0.27 | 0.63 |
80 | | | | | 0.18 | 0.42 |
100 | 65 | | | | | 0.27 | 0.63 |
80 | | | | | 0.18 | 0.42 |
100 | | | | | 0.11 | 0.23 |
80-240KPa彈簧是40-200Kpa彈簧允許壓差的2倍
氣關式
膜片有效面積Ae(cm2) | 280 | 400 | 600 |
信號范圍Pr(KPa) | 20-100 | 20-100 | 40-200 | 20-100 | 20-100 | 40-200 | 20-100 | 20-100 | 40-200 |
氣源壓力Ps(MPa) | 0.14 | 0.14 | 0.25 | 0.14 | 0.14 | 0.25 | 0.14 | 0.14 | 0.25 |
需配附件 | - | P | P | - | P | P | - | P | P |
公 稱 通 徑 DN (mm) 及 閥 座 直 徑 d (mm) | 20 | 10 | 5.35 | 6.40 | 6.40 | | | | | | |
12 | 3.72 | 6.40 | 6.40 | | | | | | |
15 | 2.33 | 5.55 | 6.40 | | | | | | |
20 | 1.34 | 3.12 | 4.01 | | | | | | |
25 | 25 | 0.86 | 2.00 | 2.57 | | | | | | |
32 | 32 | | | | 0.75 | 1.74 | 2.24 | | | |
40 | 25 | | | | 1.22 | 2.85 | 3.67 | | | |
32 | | | | 0.75 | 1.74 | 2.24 | | | |
40 | | | | 0.48 | 1.11 | 1.48 | | | |
50 | 32 | | | | 0.75 | 1.74 | 2.24 | | | |
40 | | | | 0.48 | 1.11 | 1.48 | | | |
50 | | | | 0.31 | 0.71 | 0.91 | | | |
65 | 65 | | | | | | | 0.27 | 0.63 | 0.81 |
80 | 50 | | | | | | | 0.46 | 1.07 | 1.38 |
65 | | | | | | | 0.27 | 0.63 | 0.81 |
80 | | | | | | | 0.18 | 0.42 | 0.52 |
100 | 65 | | | | | | | 0.27 | 0.63 | 0.81 |
80 | | | | | | | 0.18 | 0.42 | 0.52 |
100 | | | | | | | 0.11 | 0.26 | 0.34 |
1、 P:閥門定位器 2、允許壓差超過上述數值可告知本公司技術科另行解決。