First, the workflow Construction preparation → design submission → drawing review → technical delivery → material inspection → release positioning → sanitary appliances and fittings, pipeline installation → pass, full water test → delivery acceptance Second, the construction process points l. Washbasin (wash basin) installation (1) Draw a crosshair according to the center of the washbasin and the installation height of the washbasin, and fix the bracket on the pre-embedded wooden brick with wood screws with steel washers. (2) When installing multiple sets of washbasins, all washbasins should be at the same level. (3) The joint between the washbasin and the drain plug is sealed with an oil-impregnated asbestos rubber sheet. (4) When there is a floor drain under the washing basin, the lower end of the drain short pipe should be no less than 100mm from the ground drain. 2. Floor drain installation (1) Check the ground elevation, using a slope of 0.02 according to the horizontal line of the ground, and then lowering the height of the surface of the floor drain by 5 to 10 mm. (2) After installation of the floor drain, fix it with 1:2 cement mortar. 3. One-piece toilet installation (1) First clean the installation position of the toilet seat and clear the temporary sealing of the reserved drain. (2) Lift the toilet to make the discharge nozzle align with the center of the reserved drain, level and correct. Then, mark the position of the bolt hole on the base of the toilet bowl and mark it on the floor with chalk (crosshair). (3) Remove the toilet bowl, drill holes according to the marked bolt holes, insert the expansion bolt into the hole, and fix it. (4) Put the putty in the drain pipe outlet of the toilet and the drain pipe that is pulled out from the floor. Place the toilet with the pre-embedded expansion bolts on the floor and use the level to level and correct the toilet. Then put a rubber pad and a flat pad (eye ring) on ​​the bolt, and screw the nut to a moderate degree of tightness. Sometimes it is sealed with glass glue at the place where the toilet is in contact with the floor. (5) Connect the inlet pipe and test the water. First check the water pipe, drain the water for 3 to 5 minutes to ensure the cleaning of the water pipe; then install the angle valve and the connecting hose, then connect the hose to the water inlet valve of the installation tank and connect the water source, check the inlet valve. Whether the water and seal are normal, whether the installation position of the drain valve is flexible, whether there is jamming or leakage, and whether there is a leaking inlet valve filter device. (6) The installation angle of the water supply pipe is generally 250mm from the ground to the center of the angle valve. The one-piece toilet should be determined according to the height of the water inlet of the toilet, but not less than 100mm. The center of the angle valve of the water supply pipe is generally at the center of the sewage pipe. 150mm on the left or positioned according to the actual size of the toilet. (7) The back cover of the water tank should be no more than 20mm from the wall. (8) The height of the overflow pipe in the flushing tank should be 30~40mm below the wrench hole to prevent the water from overflowing from the wrench hole when the inlet valve is damaged. 4. Shower installation (1) When installing the shower, first measure the size and find the best position to install the shower. The left and right direction should be in the middle and left walls of the bathroom, and the vertical direction should be the position of the water dragon. (2) According to the specific height, draw the position, height, etc. of the shower on the wall. First determine the fixed position below, then position the fixed point above and use a pencil to look for it. (3) Make a hole in the wall based on the position mark just made. (4) Screw the round bottom cover of the fitting to the wall according to the instructions on the instructions. (5) When installing the shower rod to the wall, install it from above. After the upper fixing point is stabilized, the lower position is fixed to prevent the shower rod from falling down. (6) After the inner corner screws of the above fixed points are all screwed in, fine adjustments are made. Move left and right to ensure the direction of the left and right rotation while the shower is aligned to the center, and then tighten the screws. (7) Tighten the hose of the shower and install a hand shower. At this point it should be noted that the hose cannot be knotted or twisted. Third, the quality standard 1, the main control project (1) The installation of drain plugs and floor drains should be level and firm. Below the drainage surface, there is no leakage around the perimeter, and the height of the floor drain seal should not be less than 50mm. Test method: test the water to observe the experiment. (2) Before the delivery of sanitary equipment, full water and pass tests shall be carried out. Inspection method: After the water is full, the connecting parts will not leak or leak; the water passing test will give the drainage unblocked. (3) The water supply fittings of sanitary appliances should be intact, the interface is strict, and the opening and closing parts are flexible. Inspection method: observation and hand check. (4) The water receiving port and riser of each sanitary appliance connected to the horizontal pipe shall be properly and reliably fixed; the joint between the pipe and the floor shall be firmly and reliably protected against seepage and leakage. Inspection method: observe and check. (5) The connection of the drainage pipe connecting the sanitary ware should be tight and not leaking. The supporting position of the fixing bracket and pipe clamp should be correct and firm, and the contact with the pipeline should be smooth. Inspection method: observation and water inspection. 2. General items (1) A covered bathtub shall have an access door leading to the drain of the tub. Inspection method: observation inspection. (2) The urinal tank flushing pipe shall be galvanized steel pipe or hard plastic pipe. The flushing holes should be installed diagonally downwards, and the flushing water flow is at an angle of 45° to the wall. The galvanized steel pipe shall be subjected to secondary galvanizing after drilling. Inspection method: observation inspection. (3) The support and bracket of the sanitary appliance must be well preserved, the installation is smooth and firm, and the contact with the appliance is tight and stable. Inspection method: observation and hand check. (4) The height of the tub hose shower hook, if there is no design requirement, should be 1.8m away from the ground. Fourth, finished product protection (1) Sanitary ware should be protected from bumps during handling and installation. The accessories of sanitary ware should be opened before installation. The installed accessories should be protected by newspaper or plastic bag, and should be removed before acceptance. (2) When opening holes in glazed tiles and terrazzo walls, it is advisable to use electric drills or lightly remove the glazed surface with a small tweezers. When it is removed to the ash layer at the bottom of the brick, the force can be used, but it should not be used too much. Shred the surface layer or vibrate into an empty drum. (3) After the sanitary ware is installed stably, to prevent the loss or damage of the accessories, such as zippers, chains and other materials and accessories should be installed uniformly before completion. (4) After the sanitary appliance is installed, it should be covered with soft materials to prevent the inclusion of debris and cause damage to the surface of the appliance. (5) Before the water test, check whether the floor drain is unblocked, whether the household valve is closed, and then pass the water test one by one according to the interval to avoid damage to the renovation project. (6) When the indoors are not warmed in winter, the water in the various sanitary wares must be drained. There should be no water in the trap to prevent the sanitary ware and trap from freezing and cracking. (7) All sanitary appliances are not allowed to be used before formal completion and acceptance procedures. V. Security measures (1) The load line of the hand-held power tool must be a wear-resistant rubber sheathed copper core flexible cable with no joints in between. (2) The outer casing, handle, load line, plug, switch, etc. of the hand-held power tool must be intact, and must be tested for no-load test before use. Sixth, the quality problems that should be paid attention to during construction (1) The squatting pan is not flat and tilts left and right. Reason: When the device is installed stably, the front and side tiles are not strong. After the coke is filled, there is no inspection. After plastering, it is not easy to repair, causing the toilet to be misaligned. (2) The chrome surface of the part is destroyed. Cause: Use a pipe wrench when installing. A flat wrench or a self-made wrench should be used. (3) Sanitary ware overflow failure. Cause: There is no overflow eye in the drain. (4) Before the water is passed, clean the dirt inside the appliance. Do not use the water to flush the dirt into the lower water pipe to avoid blockage of the pipeline. (5) The vertical urinal is too far from the wall. Cause: The size of the cornice is not accurate. (6) Leave the toilet around the ground. Reason: The lower water pipe is reserved too high and there is no repair before the installation. (7) When installing the shower, the round bottom cover is fixed to the wall with screws, which may not be tightly tightened, which may cause the shower to fall off during use in the future. Steel Bar Bending Testing Machine Bending Tester,Rebar Testing Machine,Bending And Rebending Testing Machine,Steel Bar Bending Testing Machine Jinan Chenda Testing Machine Manufacturing Co., Ltd. , https://www.jncdtester.com