body material |
Nominal pressure MPa |
Working temperature of medium ℃ |
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< |
< |
< |
< |
< |
< |
< |
< |
< |
< |
< |
< |
< |
< |
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|
120 |
200 |
250 |
300 |
350 |
400 |
425 |
450 |
475 |
500 |
525 |
550 |
575 |
600 |
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|
Maximum working pressure MPa |
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cast ironHT200 |
1.6 |
1.6 |
1.5 |
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cast steelZG25 |
4.06.4 |
|
4.0 6.4 |
3.7 5.9 |
3.3 5.2 |
3.0 4.7 |
2.8 4.1 |
2.3 3.7 |
1.8 2.9 |
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Stainless steelZG1r18Ni9Ti |
4.06.4 |
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|
|
|
4.0 6.4 |
3.0 4.4 |
2.7 4.2 |
2.4 4.0 |
2.1 3.8 |
1.9 3.5 |
1.7 3.4 |
1.4 3.2 |
1.1 2.9 |
0.8 2.6 |
alve body:
Form: straight sleeve casting valve
Nominal diameter: 25 300mm
Nominal pressure: PM1.6 4 6.4MPa
Connection: flange type according to JB7859 JB7959
Material: ZG230 HT200 - 450 ZG0Cr18Ni12Mo2Ti ZG1Cr18Ni9Ti
Upper valve cover:
Ambient temperature: -20 degrees C +200
Heat type: -40 C C +450
Gland form: bolt clamp
Packing: V PTFE packing, flexible graphite, stainless steel bellow
Nominal diameter DN |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
125 |
150 |
200 |
250 |
300 |
|
Valve seat diameter dn (mm) |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
125 |
150 |
200 |
250 |
300 |
|
Rated flow coefficient Kv |
10 |
20 |
25 |
40 |
63 |
100 |
155 |
250 |
370 |
580 |
900 |
1300 |
|
Trip mm |
16 |
25 |
40 |
60 |
100 |
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Allowable differential pressure△MPa |
≤Nominal pressure`MPa |
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Basic error% |
±2.5 |
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Return difference% |
2.5 |
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dead zone% |
1.0 |
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Always point deviation% |
±2.5 |
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Rated Travel Deviation% |
2.5 |
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Allowable leakage Q |
KvThe value of the0.05% |
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Adjustable range |
50:1 |
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Electric actuator model |
PSL |
PSL201 |
PSL202 |
PSL204 |
PSL208 |
PSL312 |
PSL325 |
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|
3810L |
SA-08 |
381LSA-20 |
381LSB-30 |
381LSB-50 |
381LSC-65 |
381LSC-160 |
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Nominal pressure medium temperature valve body material |
1.6MPa |
Room temperature -20 degrees C ~200 cast iron HT200 |
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|
4.0MPa |
Room temperature -40 DEG C ~200 cast steel ZG25 cast stainless steel ZG1Cr18Ni9Ti |
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Cast steel ZG25 cast stainless steel ZG1Cr18Ni9Ti cast stainless steel |
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|
6.4MPa |
Room temperature -40 DEG C ~200 cast steel ZG25 cast stainless steel ZG1Cr18Ni9Ti |
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|
Cast steel ZG25 cast stainless steel ZG1Cr18Ni9Ti at medium temperature -40 C + 450 C |
Nominal diameter DN(mm) |
L(mm) |
H1(mm) |
H(mm) |
Rmm |
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|
PN(MPa) |
|
Normal atmospheric temperature |
Medium temperature |
|
|
|
1.6 |
6.4 |
|
|
|
|
25 |
185 |
200 |
110 |
704 |
855 |
176 |
40 |
220 |
235 |
125 |
747 |
898 |
176 |
50 |
250 |
265 |
131 |
755 |
906 |
176 |
65 |
275 |
295 |
171 |
835 |
986 |
176 |
80 |
300 |
320 |
189 |
882 |
1033 |
176 |
100 |
350 |
400 |
208 |
920 |
1071 |
176 |
150 |
450 |
550 |
275 |
1117 |
1332 |
225 |
200 |
550 |
670 |
320 |
1310 |
1516 |
225 |
250 |
640 |
810 |
390 |
1420 |
1626 |
225 |
300 |
880 |
950 |
450 |
1520 |
1726 |
225 |
Valve inner organization:
Spool form: single seat or seat guide sleeve sleeve piston type valve
Flow characteristics: equal percentage characteristics, linear characteristics and fast opening characteristics
Enforcement agencies:
Type: optional PS, 3810, ZAZ type (within DN100), DKZ type (DN100) series of electronic direct stroke actuator. Explosion proof type selection of 3810 series
Technical parameters and performance: refer to the corresponding actuator and valve positioner.