How many megapascals is the high pressure valve, and how much pressure is the high pressure ball val

Here are some of the well-known brands recognized in the valve industry, which are widely recognized and have a high reputation. While rankings may vary depending on time and market conditions, the following brands are generally considered to be among the top brands in the valve industry:

The following influential first-line brands of water system valves and industrial valves can be used as a reference, but for reference only: Suzhou Neway Valve, Shanghai Guanlong Valve, Shanghai Qizhong Valve, Sanhua, Su Yan, Shentong, Su Valve, Nanfang, Jiang.

First, the word Yao. The above manufacturers are only estimates and references, and the specific situation may vary or fluctuate at any time due to changes in a series of factors such as changes in the market, the size of the competition pattern, and the stability of product quality. As an indispensable key device in industrial production and civil facilities, the quality and reputation of the valve brand directly affect the satisfaction and trust of users.

These brands are known in the valve industry for their innovative technology, high-quality products and reliability. It is important to note that the market and industry are evolving rapidly, and different rankings may vary depending on time and region. For the most up-to-date ranking information, it is recommended to refer to industry reports, professional organizations or market research data for more detailed and accurate information.

Distinguish according to the pressure level:

1) Vacuum valve: refers to the valve whose working pressure is lower than the standard atmospheric pressure.

2) Low pressure valve: refers to the valve with nominal pressure pn.

3) Medium pressure valve: refers to the valve with nominal pressure pn.

4) High pressure valve: refers to the valve with the working pressure pn.

5) Ultra-high pressure valve: refers to the valve with nominal pressure pn.

So theoretically, it is in the middle of the sub-medium pressure valve, but there is no valve in the pressure level between them, so the landlord does not need to consider, the same between the sub-high pressure valves.

There is no such level, it is included in the range of medium pressure valves.

Low, medium and high is just a general statement, such as the height of people, fat and thin, there is no clear distinction between the current pressure pipe fittings are specific to the pressure value, will not say that this place is installed a medium pressure valve.

Pressure pipes are generally classified according to pressure in this way, and valves can also be distinguished according to this.

Of course, what you said belongs to the medium-pressure valve, and no one has pursued the pressure pressure point if it belongs to the low-pressure valve

1. The pressure of low-pressure pipeline engineering;

2. Medium pressure pipeline engineering pressure;

3. High-pressure pipeline engineering pressure;

4. The pressure of ultra-high pressure pipeline engineering is 10-20MPa.

In fact, this is just a statement in the valve industry, and it is not necessary to distinguish it very clearly.

As long as the pressure requirements put forward by the customer, we can send the drawings to him.

The flange thickness of the valve and the thickness of the valve are also not standardized, according to the pressure requirements.

It is completely different from the thickness of the flange and the body of 10MPa.

For example, the basic pressure of the general gate valve is cast according to GB T139272008 and JB T90921999 standards.

Generally selected, the highest in the pressure test is, if your pipeline pressure exceeds this, it will not work, and now many manufacturers in order to save costs, the valve wall is thin, and the conventional gate valve pressure is a bit difficult.

My own demarcation.

Vacuum negative pressure.

It belongs to normal pressure (low pressure).

It belongs to medium pressure. It is high pressure.

50MPa-80MPa belongs to supercritical high pressure valves.

Valves are classified by pressure

Vacuum valve – a valve whose operating pressure is lower than the standard atmospheric pressure.

Low-pressure valves—valves with nominal pressure pn less than.

Medium Pressure Valve – A valve with a nominal pressure of PN.

High-pressure valve – a valve with nominal pressure.

Ultra-high pressure valve - valve with nominal pressure pn greater than 100MPa.

The pressure value is the only indicator that distinguishes these valves.

1.How to distinguish the pressure of ultra-high pressure valves, high-pressure valves, medium-pressure valves, and low-pressure valves?

Ultra-high pressure valves, nominal pressure.

pn≥100mpa；High-pressure valves, nominal pressure pn; Medium pressure valve, nominal pressure; Low pressure valve, nominal pressure pn.

2.How to distinguish the caliber of extra-large diameter valves, large-diameter valves, medium-diameter valves, and small-diameter valves?

Extra-large diameter valve, nominal size DN 1400mm; Large diameter valve, nominal size DN350-1200mm; Medium diameter valve, nominal size DN50mm-300mm; Small bore valve, nominal size DN 40mm

Generally, the ball valve is considered high pressure when the nominal pressure is 100 pressure (10MPa). 16. The nominal pressure can be called normal pressure and 25 pressure.

Vacuum valve: Absolute pressure < i.e. a valve with a height of 760mm Hg, usually with mm Hg or mm

The water column indicates the pressure.

2.Low-pressure valve: valve with nominal pressure pn (including steel valve of pn) 3Medium pressure valve: A valve with nominal pressure.

4.High-pressure valve – a valve with nominal pressure.

5.Ultra-high pressure valve: a valve with nominal pressure pn.

Valves are classified by pressure

Vacuum valve – a valve whose operating pressure is lower than the standard atmospheric pressure.

Low-pressure valves—valves with nominal pressure pn less than.

Medium Pressure Valve – A valve with a nominal pressure of PN.

High-pressure valve – a valve with nominal pressure.

Ultra-high pressure valve - valve with nominal pressure pn greater than 100MPa.

Normally, a pressure of 25 or more is considered a medium pressure.

Because of the words of ordinary industrial use. The pressure is only below 25 pressures

This is wide, and this depends on the manufacturer and user. For example, the average pipeline user has a high pressure of tens of kilograms. A few hundred kilograms on heavy machinery is just average.

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1 Vacuum valve: absolute pressure< i.e. a valve with a height of 760mm Hg, usually with mm Hg or mm

The water column indicates the pressure.

2 Low pressure valve: valve with nominal pressure pn (including steel valve with PN) 3 Medium pressure valve: valve with nominal pressure.

4 High pressure valve: a valve with nominal pressure.

5 Ultra-high pressure valve: a valve with nominal pressure pn.

Valves are classified by pressure

Vacuum valve – a valve whose operating pressure is lower than the standard atmospheric pressure.

Low-pressure valves—valves with nominal pressure pn less than.

Medium Pressure Valve – A valve with a nominal pressure of PN.

High-pressure valve – a valve with nominal pressure.

Ultra-high pressure valve - valve with nominal pressure pn greater than 100MPa.

Experiment with pressure according to the multiple of the pressure used, for example, if you need to hit it, you need to hit it like this, and the same is true for high-pressure ones.

To be precise: according to the requirements of the national standard 13927: the strength test pressure of the valve is the times of the calibrated pressure, and the sealing test is the times of the calibrated pressure.

If you want to test the water pressure, it is best to hit the pressure specified by the valve. The doubling mentioned in the next complaint is the pressure on the test shell in the factory. Generally, the pressure of the assembled valve should not be exceeded.

The above buddy is very professional, and the pressure retention time is not the same according to different pipelines and different valves. If you want to buy a good valve, I can choose the type for you, Langfang Guanghao boiler electromechanical. steel market.