Three points to pay attention to when purchasing PPR water pipes
1. The pressure bearing degree should be selected according to the current tap water pressure. Generally, it is 1.6Mpa and 2.0MPa. The pipe wall of PPR pipeline is 2.3, 2.8, 3.5 and 4.4mm thick. The higher the pressure bearing is, the greater the thickness is. In fact, it is enough. Because the tap water pressure we know at present is the pressure value at the time of delivery. If it really flows to your house, the pressure will be greatly reduced. We often see that the water supply pipe on the road is broken, but generally it is not too much pressure, but the pressure loss of vehicles and the aging of water pipes. Generally speaking, 1.6Mpa pressure is enough for the pipe wall of 2.3 or 2.8.
2. Water pipe dealers often offer discounts, usually 6-6.5%, etc., but it should be noted that dealers will only sell water pipes at a discount, and there are few discounts on accessories such as elbows, tees and valves, or the discount range is low. According to the calculation of one kitchen and one bathroom, if you add a water pipe to the balcony, you can use up to 15-20 meters of water pipe. Even if all the water pipes are calculated according to the hot water pipe, you can get a 60% discount according to the market price of 14 yuan / M, which is only more than 200 yuan at most.
But the price of joints, tees and valves will be great if they are not discounted. The relationship between water pipes and accessories is like that between ham and straw, so many customers buy water pipes at a discount. At the last calculation, the total price is not much cheaper. That's why.
So be sure to ask clearly, write it down in black and white, and agree that everything, including water pipes and accessories, is a discount before agreeing to the seller to install it. In addition, it must be explained that the settlement shall be made according to the actual materials. During the construction, it is necessary to pay attention to whether the water pipes brought by the workers are short (that is, the water pipes left by other people), and before the commencement, count the quantity and variety of all water pipes brought by the workers, and the construction can be started only after they are approved by the workers.
After the completion, the broken end and the remaining pipes must not be taken away by the worker. They would rather be thrown away than given to him. Unless it is used to deduct the project funds, the remaining pipes (above 0.65M) can be settled and deducted at 20% of the actual purchase price.
The accessories don't have to be so complicated. It's easier to count.
3. Installation costs.
Generally, the Seller shall charge installation fees. The reference standard is: slotting on the wall is 4 yuan / meter, and chiseling internal wall holes is 4 yuan / piece. Welding cost: 120 yuan for one kitchen and one bathroom, 150 yuan for one kitchen and two bathrooms. Don't pay for other expenses. This should also be explained in advance. It must be written clearly in black and white.
