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Product details
Instructions for use
The V230V231 self operated pressure (differential pressure) regulating valve is composed of valve body, valve seat, valve core components and other parts. It is an energy-saving product that directly relies on the pressure changes of the regulated medium to automatically regulate the pressure without the need for external energy. It can be used for pressure devices of non corrosive (up to 350 degrees Celsius) liquids, gases, steam and other media. Widely used in industrial sectors such as petroleum, chemical, metallurgical, and light industry, as well as urban heating and heating systems.
Product Features
Self operated pressure regulating valves do not require external energy and can work in places without electricity or gas, which is both convenient and energy-saving.
The pressure segmentation range is fine and intersecting with each other, with high adjustment accuracy.
The pressure setting value can be continuously set during operation.
For regulating the pressure after the valve, the ratio of the pressure before the valve to the pressure after the valve can be 10:1-10:8.
Rubber diaphragm type detection, with high precision and sensitive action of the actuator.
Adopting a pressure balance mechanism to make the regulating valve responsive and precise in control.
Specifications and 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 ； four 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 Maximum working temperature ℃ V230 V231 Liquid ≤ 140; Gas ≤ 80 Hard seal V230 Isolation tank ≤ 200 Equipped with isolation tank and extension parts ≤ 300* Equipped with isolation tank and heat sink ≤ 200 Pressure balancing component Corrugated pipe Rolling film Flange standard DIA (flange standards can also be provided according to user requirements) Valve body material PN16 ： Cast iron (working temperature ≤ 200 ℃); PN4.0 ： Cast steel, cast stainless steel (working temperature ≤ 350 ℃) Valve core material stainless steel; The soft seal is made of stainless steel embedded with rubber rings Maximum working pressure MPa Nominal pressure (note the relationship between △ Pmax and working pressure and working temperature)
Note:
1. When the liquid temperature exceeds 140 ℃ and the gas temperature exceeds 80 ℃, the valve is inverted;
2. Z-value: Noise measurement coefficient, which is used to measure the magnitude of noise. For specific calculations, please refer to the self regulating valve selection guide.
External 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 |
|
Approximately 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 |
|
Approximately weight kg |
7.5 |
7.5 |
13 |
28 |
Ordering Notice
Name and model of regulating valve
Nominal pressure Mpa
Nominal diameter (mm)
Rated flow coefficient (Kv)
Inherent flow characteristics
Media name
Working temperature and range
Operation mode of the whole machine
Pressure set point and adjustment range
Valve body, valve internals, and packing materials
Attached attachments
Other special requirements
Other similar products:ZZY self operated single seat regulating valve ZZYP self operated pressure regulating valve ZSY self operated regulating valve (dual circuit)
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