Do pre acting alarm valves need CCC certification?

CCC is our country's compulsory certification requirement and has a clear regulatory catalog. Specifically, it is necessary to understand the name and model information of the product for comparison in order to have an accurate reply. We hope that the reply will be helpful to you, if you need a little further consultation, please contact us

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 the user's stove.

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 changing rapidly, and the rankings may vary by time and region. For the latest ranking information, it is recommended to refer to industry reports, professional institutions or market research data for more detailed and accurate information.

Do you need a pre-action alarm valve?

Hello, it's an honor to have the opportunity to answer your questions.

Yes. CNKI's products must be certified by CCC in the compulsory CCC certification catalog, otherwise they cannot be sold in the Chinese market.

Questions. Is there any certification on the package that can be accompanied by Table 3C?

Is there any certification on the package that can be accompanied by Table 3C?

CCC certification is a compulsory product certification system.

Questions. There is no on the packaging, and the product is a big brand, how to say it.

There is no on the packaging, and the product is a big brand, how to say it.

What kind of product is it, is it a combination product?

Because it is combined into a finished product, it is not within the 3C certification standard, so there is no need to mark the outer packaging.

Questions. There is a batch of yes, and there is a batch of no.

There is a batch of yes, and there is a batch of no.

Why? Then you consult the person who gave you the goods and ask about the situation, and he will explain to you whether there is any misunderstanding.

Questions. The same big brand of ceramic tiles, there are batches on the packaging, and there are batches without them.

The same big brand of ceramic tiles, there are batches on the packaging, and there are batches without them.

What I want to ask is that there is no 3C certification on the packaging, and there is no need to play 3C certification if there are other certifications.

What I want to ask is that there is no 3C certification on the packaging, and there is no need to play 3C certification if there are other certifications.

As long as the manufacturer is certified by the 3c manufacturer, it can be **is**.

It is not necessary to print the 3C logo on the packaging.

This is normal.

Questions. Isn't it? Don't lie to me.

Isn't it? Don't lie to me.

Why am I lying to you, if you don't believe it, you can call** to consult them They will give you a reasonable explanation, as long as the manufacturer has a 3C certification certificate**.

Hello, this needs to look at the temperature, pressure, flow rate and other factors of the conveying medium in the pipeline to know exactly whether to install the exhaust valve.

Doing wire 3C safety certification is the most basic and indispensable, followed by UL.

Closed sprinklers are generally used in places with low ambient temperatures, such as cold storage or cold regions in the north.

【Valve antifreeze electric heating application analysis】Electric heat tracing valve, which is installed on the valve by using electric heat tracing, heating cables, etc., plays the role of anti-freezing and heat preservation, and is mostly used for anti-freezing and thermal insulation or temperature maintenance of pipelines and tanks in the industry such as petroleum and chemical industries. In winter, the weather is cold, and valve freezing and cracking are common. This valve is used in fluid control systems and is a control component in fluid delivery systems.

It has the functions of interception, regulation, diversion, anti-backflow, voltage stabilization, diversion or overflow pressure relief. In order to protect the normal operation of valve media transportation, Wuhu Jiahong special valve electric heat tracing belt can be used to prevent freezing and heat preservation.

Since there are many elbows in the valve, it is not suitable for the installation of a constant power electric heat trace (with a separate heating wire layer), so choosing a self-limiting heating cable is a good choice.

Advantages of anti-freeze and thermal insulation electric heat tracing of valve device:

According to the actual surface temperature of the tracked equipment, the output power is automatically sensed and adjusted to compensate for the heat, so as to save energy consumption;

It can be arbitrarily shortened or extended over a certain length and allows for multiple overlaps at the same time, without high heat spots and burns.

The self-limiting electric heat tracing for the valve device starts quickly, the temperature rises quickly, the heating temperature is uniform, safe and reliable, the application range is wide, the service life is long, and the energy saving and environmental protection are realized;

The valve insulation electric heating system is simple to install, easy to maintain, all-day operation, high degree of automation, and low operation and maintenance cost.

It depends on what is the normal operating temperature of your alarm valve? There is also the low-pressure air or nitrogen inside, what temperature does it need to be able to achieve normal operation. If the temperature below normal operation has an impact on the system, it can be considered.

The dry valve, which resembles a big belly, has a large contact area on the system side and a small contact area on the water supply side, thereby reducing the pressure on the system side, that is, in the pipe network. The pre-action alarm valve group does not have this need, the lower side is empty, and the system side is pressurized gas. In a pre-acting alarm manifold, the wet valve only functions as a check valve.

So there is no need to use a dry valve.

The pre-action valve group is installed in a place where it is strictly forbidden to spray by mistake, and when there is a triggering element alarm, there is a dry conversion to a wet type!