Grooving construction method for ppr cold and hot water pipes
Snap the thread first, then slot. The pipe slotting must be parallel and vertical as required. All pipes that must be routed in parallel are controlled at a height of 60-90CM, and pipes with faucets must be vertical. The depth is controlled at 4CM. After the trunking is opened, the person in charge of construction records the size and location of the slotted pipeline. It is convenient to know the position of the pipeline when the faucet and other sanitary ware are installed in the future.
In the process of installing hot and cold water pipes, it is very beautiful to slot in the wall and bury the water pipe in the wall, but some installers do not want to make the wall slot too wide in order to save effort, especially now there are many reinforced concrete walls. , Slotting is quite difficult, so if you can slot less, you can squeeze the hot and cold water pipes tightly. It is wrong that the hot and cold water pipes are close together.
Four main points of ppr cold and hot water pipe grooving construction
1. All kinds of pipe grooves should be slotted by cutting machine, so as to be horizontal and vertical.
2. The wall groove should be deep: the concrete wall has a 2-3CM protective layer of cement mortar, and the steel bar has a 1.5CM protective layer in the wall, so at least 4CM can be opened, even if it touches the steel bar, the back of the steel bar is the same It is concrete, so it can bypass steel bars.
3. Workers are required to ensure a depth of 3.5mm as much as possible when the wire is slotted. If it is encountered where the steel bar cannot be opened, the steel mesh is required to be laid outside to prevent the paint from cracking in the future.
4. The intersection of the standard line and pipe should be grooved on the ground or use a bridge. If the line tube passes under the keel, the keel should not be simply raised up, but should be slotted on the back of the keel so that the line tube can pass through and buckle the line tube.