Self-pressure (differential pressure) control valve
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- Actuator series
Nominal diameter: DN15 ~ 250mm
Nominal pressure: PN1.6 ~ 4.0 MPa
Temperature: Liquid ≤ 140 ℃, gas ≤ 80 ℃
Main material: cast iron, cast steel, cast stainless steel
Design criteria: GB / T17213
Inspection Standard: GB / T4213
Flange Standard: JIS B220, JB / T79, ANSI B16.5-1981, GB / T9113, HG20594-97, HG20618-97, etc.
Product description:
Direct acting self-acting
pressure (differential pressure) control valve, the valve body, seat,
valve components and other components, is a kind of without external
energy and only rely on the pressure of the media to be adjusted
automatically adjust the pressure of energy savings Type products, can
be used for non-corrosive (maximum temperature of 350 ℃) liquid, gas and
steam and other media pressure control device. Widely used in
petroleum, chemical, metallurgy, light industry and other industrial
sectors and urban heating, heating systems.
◆ Model, specifications
|
category |
Pressure control valve |
Differential pressure control valve |
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|
Valve pressure regulator |
Valve pressure regulator |
Differential pressure rise valve closed |
Pressure differential valve opens |
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|
Hard seal |
Soft seal |
Hard seal |
Soft seal |
Hard seal |
Soft seal |
Hard seal |
Soft seal |
|
|
model |
V230 D01 |
V230D01 |
V230D02 |
V231D02 |
V230D03 |
V231D03 |
V230D04 |
V231D04 |
|
specification |
DN15-250 |
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Technical Parameters:
|
Nominal diameter mm |
15 |
20 |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
125 |
150 |
200 |
250 |
|
|
Rated flow coefficient Kvs |
3.2 |
5 |
8 |
12.5 |
20 |
32 |
50 |
80 |
125 |
160 |
320 |
450 |
630 |
|
|
Nominal pressure MPa |
1.6, 4.0 |
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|
Z value |
0.6 |
0.6 |
0.6 |
0.55 |
0.55 |
0.5 |
0.5 |
0.45 |
0.4 |
0.35 |
0.3 |
0.2 |
0.2 |
|
|
The highest working temperature ℃ |
V230 V231 |
Liquid ≤ 140, gas ≤ 80 |
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|
Hard seal V230 |
With isolation tank ≤ 200 |
With isolation tank and extension pieces ≤ 300 * |
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|
With isolation tank and heat sink ≤ 200 |
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|
Pressure balance element |
Corrugated pipe |
Rolling the diaphragm |
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|
Flange standard |
DIA (also available on request flange standard) |
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|
Body material |
PN16: cast iron (working temperature ≤ 200 ℃); PN4.0: cast steel, cast stainless steel (working temperature ≤ 350 ℃) |
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|
Spool material |
Stainless steel; soft seal stainless steel inlaid rubber ring |
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|
The maximum working pressure MPa |
Nominal pressure (Note △ Pmax and the relationship between working pressure and working temperature) |
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Note:
1, the liquid> 140 ℃, gas> 80 ℃ when the valve flip;
2, Z value: noise measurement coefficient, the value used to measure
the size of the noise, the specific calculation see the self-regulating
valve selection guide.
◆ Dimension
◆ V230 / V231 control valve size and weight
|
Nominal diameter mm |
20 |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
125 |
150 |
200 |
250 |
|
L mm |
150 |
160 |
180 |
200 |
230 |
290 |
310 |
350 |
400 |
480 |
600 |
730 |
|
B mm |
212 |
238 |
238 |
240 |
240 |
275 |
275 |
380 |
380 |
295 |
325 |
372 |
|
Approximate weight kg |
6.7 |
9.7 |
13 |
14 |
17 |
29 |
33 |
60 |
70 |
80 |
140 |
220 |
◆ D02 (D04) actuator size and weight
|
Effective area cm 2 |
32 |
80 |
250 |
630 |
|
D mm |
172 |
172 |
263 |
380 |
|
H mm |
435 |
430 |
470 |
520 |
|
Approximate weight kg |
7.5 |
7.5 |
13 |
28 |
◆ D01 (D03) actuator size and weight
|
Effective area cm 2 |
32 |
80 |
250 |
630 |
|
D mm |
172 |
172 |
263 |
380 |
|
H mm |
440 |
435 |
440 |
520 |
|
Approximate weight kg |
7.5 |
7.5 |
13 |
28 |
Note: Direct acting self-operated valve of the total height and weight for the control valve and actuator height and weight.
