公稱壓力
PN
|
試驗(yàn)壓力
PS
|
進(jìn)口壓力
P1
|
出口壓力
P2
|
最小壓差
△P
|
背壓
PB
|
壓力特性
△P2P1
|
流量特性
△P2G2
|
1.6
|
2.4
|
<1.6
|
0.1~1.0
|
0.2
|
≤0.15
|
P2×10%
|
P2×20%
|
2.5
|
3.75
|
<2.5
|
0.3~1.6
|
0.2
|
≤0.25
|
P2×10%
|
P2×20%
|
4.0
|
6.0
|
<4.0
|
0.3~2.5
|
0.2
|
≤0.25
|
P2×10%
|
P2×20%
|
6.4
|
9.6
|
<6.4
|
0.5~3.0
|
0.25
|
≤0.4
|
P2×12%
|
P2×25%
|
DN
|
L
|
H1
|
H2
|
||||||||
PN16 PN25
|
PN40 PN64
|
PN16
|
PN25
|
PN40
|
PN64
|
PN16
|
PN25
|
PN40
|
PN64
|
||
20
|
160
|
160
|
170
|
90
|
90
|
90
|
90
|
220
|
220
|
220
|
220
|
25
|
180
|
200
|
200
|
95
|
95
|
105
|
105
|
255
|
255
|
265
|
365
|
32
|
200
|
220
|
220
|
100
|
100
|
110
|
110
|
255
|
255
|
265
|
365
|
40
|
220
|
240
|
240
|
115
|
115
|
130
|
130
|
325
|
325
|
330
|
330
|
50
|
250
|
270
|
270
|
120
|
120
|
135
|
135
|
325
|
325
|
330
|
330
|
65
|
260
|
280
|
300
|
125
|
126
|
145
|
145
|
330
|
330
|
340
|
355
|
80
|
310
|
330
|
330
|
135
|
135
|
160
|
160
|
340
|
340
|
340
|
340
|
100
|
350
|
380
|
380
|
185
|
185
|
185
|
185
|
360
|
360
|
360
|
360
|
125
|
400
|
450
|
450
|
190
|
200
|
200
|
245
|
560
|
560
|
565
|
565
|
150
|
450
|
500
|
500
|
205
|
210
|
240
|
280
|
580
|
580
|
585
|
585
|
200
|
500
|
560
|
560
|
220
|
245
|
245
|
310
|
630
|
630
|
635
|
635
|
250
|
600
|
|
|
270
|
|
|
|
750
|
|
|
|
300
|
800
|
|
|
310
|
|
|
|
780
|
|
|
|
350
|
850
|
|
|
390
|
|
|
|
850
|
|
|
|
400
|
900
|
|
|
420
|
|
|
|
925
|
|