氣動(dòng)薄膜調(diào)節(jié)閥的允許壓差,允許壓差分氣開(kāi)式和氣關(guān)式,下面分別列表講述。
氣開(kāi)式 單位:MPa
|
膜片有效面積Ae(cm2)
|
280
|
400
|
600
|
|
信號(hào)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(guān)式
|
膜片有效面積Ae(cm2)
|
280
|
400
|
600
|
|
信號(hào)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(guò)上述數(shù)值可告知本公司技術(shù)科另行解決。