1. To purchase Poly PEX Fittings, you should choose the pressure according to the current tap water pressure, generally 1.6MPA, 2.0MPA, and the pipe wall thickness is 2.3, 2.8, 3.5, 4.4MM, etc., not the higher the pressure, the greater the thickness Well, it's actually enough. Because the pressure of tap water as we know it is the pressurized value when it leaves the factory, this pressure is greatly reduced if it really flows to your home. We often see broken water pipes on the road, but it is usually not caused by too much pressure, but caused by vehicle pressure loss and aging water pipes. Generally speaking, a pipe wall of 2.3 or 2.8, 1.6MPA pressure-bearing is sufficient for household use.2. Water pipe distributors often offer discounts, usually 6-6.5% off, etc., but it should be noted that distributors only sell water pipes at a discount, and accessories such as elbows, tees, valves, etc., are rarely discounted. Or the discount rate is lower. According to the calculation of one kitchen and one bathroom, and add a water pipe to the balcony, you can use a 15-20m water pipe at most. Even if all the hot water pipes are calculated, the market price is 14 yuan/M with a 40% discount, and the maximum is only more than 200 yuan. But the joints, tees and valves will be great if they are not discounted. Water pipes and accessories are like the relationship between ham and straw, so many customers buy water pipes at discounted prices. In the end, the total price is not much cheaper. This is the reason. 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. And it must be stated that the settlement is based on the actual materials used. During the construction, it is necessary to pay attention to whether the water pipes brought by the workers are short (that is, leftovers from other people's households). Only after workers' approval can the work be started.Ppr water pipe joints should not be too many: the inner diameter of the pipe will be smaller if there are more heads, which increases the water resistance, resulting in a decrease in the amount of water per unit time, and more joints are prone to poor connections. Therefore, the water pipe can go straight if it can go straight, and one pipe can be one pipe. If you don’t worry, you can do a closed water experiment. The pressure is 0.6MPa for 24 hours, and the pressure does not drop, it is considered normal.PPR is made of random copolymer polypropylene as the base material after modification treatment. Compared with other polypropylene, it has better mechanical properties, higher tensile yield strength and impact resistance. It is an excellent material for hot water delivery pipes. PPR pipes are non-toxic and hygienic, easy to install, and resistant to chemicals. It has good performance, especially its good thermal welding performance. The molecules and molecules at the junction are completely fused together, which solves the problem of water leakage at the connection of F2159 Fittings that has plagued the water supply industry for a long time, so it has been widely used.
