Instructions for use:
V230V231 type self-operated pressure (differential pressure) regulating valve, which is composed of valve body, valve seat, valve core components and other parts, is an energy-saving product that directly relies on the pressure change of the adjusted medium itself to automatically adjust the pressure without additional energy, and can be used for non-corrosive (good high temperature 350 degrees Celsius) pressure device for liquids, gases and steam and other media. It is widely used in petroleum, chemical, metallurgical, light industry and other industrial sectors, as well as urban heating and heating systems.
Product features:
Self-operated pressure regulating valves do not require additional energy and can work in places without electricity and gas, which is convenient and energy-saving.
The pressure segment range is fine and intersecting, and the adjustment accuracy is high.
The pressure setpoint can be set continuously during operation.
For the pressure adjustment after the valve, the ratio of the pressure in front of the valve to the pressure behind the valve can be 10:1~10:8.
Rubber diaphragm detection, actuator measurement accuracy is high and action is sensitive.
The pressure balance mechanism is used to make the control valve responsive and precise control.
Specifications and technical parameters
|
Nominal diameter mm |
15 |
20 |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
125 |
150 |
200 |
250 |
|
|
Rated flow factor 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 |
|
|
Very high |
V230 V231 |
liquid ≤ 140 ; Gas ≤ 80 |
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Hard-sealed V230 |
Equipped with isolation tank≤ 200 |
With isolation tank and extension≤ 300* |
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Comes with isolation tank and heat sink≤ 200 |
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Pressure balancing element |
Bellows |
Rolling diaphragm |
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French standard |
DIA (flange standard also available upon request) |
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Valve body material |
PN16 : Cast iron (operating temperature ≤ 200 °C); |
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Valve core material |
stainless steel; The soft seal is stainless steel inlaid with rubber rings |
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Very high working pressure MPa |
Nominal pressure (pay attention to △ Pmax and the relationship between working pressure and operating temperature) |
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Notes:
1. The valve is reversed when the liquid > is 140 °C and the gas > is 80 °C;
2. Z-value: noise measurement coefficient, this value is used to measure the noise level, the specific calculation is detailed in the selection guide of self-operated control valve.
Overall dimensions and weight
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 cm2 |
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 |
Ordering instructions
The name and model of the regulating valve
Nominal pressure Mpa
Nominal Diameter (mm)
Rated flow factor (Kv)
Inherent flow characteristics
Media Name
Operating temperature and range
The mode of operation of the whole machine
pressure set point and adjustment range
Valve body, valve trim and packing material
Attached attachments
Other special requirements