During house decoration, although the developer installed a main water valve in the pipeline well of the corridor, the management well is often closed, and the individual residents can also open the pipeline well to control the water pipes in the home, so When decorating, they will add an indoor main water valve under the kitchen sink, so that the tap water pipeline in the home can be closed anytime and anywhere, which is convenient for daily maintenance and use. At this time, there will be a selective question, that is, should the tap water PPR main pipe install a stop valve or a ball valve?

If you want to know whether the tap water PPR pipe is better to install a stop valve or a ball valve, I think it is necessary to carefully analyze the characteristics of the two valves, the material of the water valve, and the convenience of later maintenance and replacement, so that it can be comprehensive. s answer.

(1) The characteristics of the two valves
For the globe valve and ball valve, both can be installed on the PPR tap water main pipe and used as a valve, so if you want to know which one is better, you must start with the characteristics of the two valves.

Cut-off valve: The so-called cut-off valve is a rotary open-close valve, which uses the closing principle to control the closing and opening of the valve. The inside of the shut-off valve is Z-shaped, and then the pressure of the valve stem is used to make the sealing surface of the disc and the sealing surface of the valve seat closely fit, and the valve core is lifted and closed to open and close. For the shut-off valve, it has the following advantages: good flowability, due to the unique design inside the shut-off valve, it is not easy to be blocked by debris in the water when the valve is open, so the flowability is good; easy to maintain, for the shut-off valve Said, because its design principle is simple and does not have too many complicated structures, it is very convenient for maintenance; its airtightness is good, because the sealing design of the globe valve is inside, there will be no damage due to use and wear, and its sealing can naturally be guaranteed. Sexual intactness. Because of these advantages, many people will choose the shut-off valve as the main valve of the PPR water pipe during decoration.

Ball valve: The so-called ball valve means that the inside of the valve uses a central opening of a ball as the valve core, and the opening and closing of the valve is controlled by controlling the rotation of the ball valve core. In the national standard GBT21465-2008, there are also clear definitions for ball valves. Moreover, there are many types of ball valves used on PPR tap water, so special attention should be paid in this regard. For ball valves, it has the following advantages: easy to install, especially easy to install for ball valves that do not have live connections on the market; good sealing performance, because the internal design of the ball valve is a ball core, it has a good seal The price is moderate, why many people like to use ball valves nowadays, the important reason is that there are a wide variety of options, and the price is moderate; the flow resistance is small, and the flow resistance of the ball valve when opening and closing is achieved through the rotation of the spherical valve core. It is the smallest kind of valve.

(2) The material of the water valve
For the tap water PPR main pipe, whether it is better to install a stop valve or a ball valve, the main reference factor is the material of the valve, which is also a key point that directly affects which valve to use.

Cut-off valve material: For the cut-off valve, it is used on the PPR tap water main pipe. At present, the two materials that are most used are copper and stainless steel, and there is basically no big difference between the two materials. You can choose by yourself. However, as a PPR tap water main pipe, only two materials are recommended for everyone to use. Only in this way can the quality of its pipe fittings be guaranteed. At this point, you can choose one of them according to your personal usage habits and preferences, as well as the common types of plumbers. I want to remind here that the quality of the shut-off valve is good or bad. It is also used in the main PPR water pipeline. It also has a great quality. It is recommended to buy a large brand manufacturer with a price of about 100 yuan. It is the best and the most suitable stop valve.

Ball valve material: For ball valves, there are many types of PPR tap water main pipes available on the market, including PPR one-time molding ball valves and PPR live ball valves. The PPR one-time forming ball valve is divided into two forms with and without live connection, so it is necessary to distinguish clearly. At present, the surface of the PPR one-time ball valve without articulation is eliminated because it is a one-time product, and there is no way to replace and maintain it; while the PPR one-time ball valve with articulated connection, although it can be replaced, the quality is not up to the standard. To the standard of long-term use in normal households, most of them are used for short-term water pipe use; and the PPR live ball valve is the most suitable for household use at the moment. The material is also made of copper and stainless steel, the same two materials There is no big difference. You can choose at will. The recommended price is between 75-150 yuan. As long as it meets this standard and belongs to a big brand, it can be suitable for household use.

(3) Convenience of later maintenance and replacement
When purchasing any product, it is necessary to consider the convenience of its later maintenance. The same applies to the main valve of the PPR water pipe.

The valve should be easy to maintain and replace in the later period: whether it is a globe valve or a ball valve, it should be used to facilitate the replacement of the spool later, because after a long period of use, there is a certain probability that the valve will be damaged and the valve is not closed properly. Therefore, it is necessary to replace the spool so that the valve can be opened and closed normally. If it is that kind of disposable valve, it cannot be used, because it is inconvenient to replace it when it is found to be unusable. Basically, after the pipe fittings are abolished, the new valve can be re-welded to achieve normal use. Therefore, as far as the globe valve or the ball valve is concerned, as long as it is made of high-quality materials and is also easy to maintain in the later stage, it can be used in either form, and it does not matter.

Easy to operate: For most households, the PPR tap water main valve will be installed under the sink, so it must be decided according to personal usage habits. In terms of valve design, the valve with handle is relatively convenient, because the opening and closing can be done at one time, while the operation of the valve with circular lift is relatively troublesome. At this time, if space permits, it is recommended to use PPR live ball valve, because it is convenient to operate, it is easy to replace the valve later, and the price can be more economical and moderate.

ZHEJIANG QIAI TUBING INDUSTRY CO.,LTD was established in 1996, is professional China Plumbing Pipe Fittings Manufacturers and Plumbing Pipe Fittings factory. QIAI Based on excellent management,relying on the perfect quality system .All the productions passed by ISO9001 international quality management systerm,Certificated by CE.Our main products include: PP-R pipes and fittings,Aluminum pipes and fittings, PE-RT pipes and fittings,Brass Fittings,Water and Gas Valves, Stainless Steel Corrugated Flexible Gas hose, wholesale Plumbing Pipe Fittings, and so on.At present, the company's product sales network has spread all over the world, establish and improve the quality, efficient and fast professional marketing management team and service support system for the vast number of users, welcome!