1. The cement floor is less than three months old, or three months after completion, but the doors and windows of the room are closed, airtight, non-ventilating, and excessively humid. In this case, the PVC floor will be slightly longer. Cracking or seaming.
2. When paving PVC floor, any one of the telescopic gaps is less than 1 cm, especially when the door edge and the corner and the concealed part are paved, the expansion gap or the sawing board is roughly estimated, so that any part of the floor is in contact with the fixed object. As long as any part of the floor is in contact with the fixture, the force and reaction force will occur, partially or fully arched, and in severe cases, seam cracking or warping will occur.
3. PVC flooring does not enter the room for several months after being paved. The doors and windows are closed for a long time, so that the indoor air does not flow and the humidity is not enough. Especially in the winter and summer seasons, the "squeaky board" in this environment is prone to arching and cracking.
4. Before the PVC floor, although the geothermal heating room has already done the heating experiment, because the geothermal construction unit did not reach the highest temperature for the early delivery or saving money, there was no continuous observation of the ground temperature change, and the local surface stopped the experiment after having the temperature. In this way, a large amount of moisture and warm air did not come out. After the local board was paved, once the heat was supplied again, the tide and moisture that could not be emitted increased sharply. Or even if a complete experiment is done, the geothermal temperature does not increase gradually after paving, but is raised once in place, so that the moisture, moisture, and hot air generated by the excessively rapid increase to the extreme temperature cause the floor to bubbling.
5. The user does not maintain the floor (sheet) according to the paving instructions and the “warranty cardâ€. In particular, when cleaning the floor, the floor seams are often wetted or the seams are often wetted, resulting in joint cracking and corner lifting.
6. In winter paving, due to the increased water absorption rate of the floor and the “hibernation†of the PVC floor, there is no need to place the floor in the user's room for more than 12 hours for temperature adaptation and “freezing and waking upâ€, so the floor is laid for a period of time, resulting in problem. When paving, the floor mat is not staggered, especially if the seam of the mat is completely sealed with a dry tape, so that the moisture is pulled out from one place. In this case, the seam is not split, or it is bubbling or slanting. . This is the most common and most common cause.
Groove Couplings are generally composed of sealing rubber ring, clamp and lock bolt three parts. Because of its unique rubber seal ring and clamp structure design can be made, so that the grooved connector has a good seal, and with the fluid pressure within the pipe increases, its sealing increased accordingly.
Material: Ductile Iron Casting, conforming to ASTM A536 65-45-12 Equal to QT450-12.
Seal: NBR, EPDM
Bolts & Nuts: Q235A
Coating: 1.Painting 2.Epoxy 3.Dacromet 4.Galvanized
Colour: 1.Red 2.Blue 3.White 4.Orange
Grooved Pipe Couplings,Grooved Rigid Coupling,Grooved Couplings,Grooved Shouldered Coupling
HEBEI ZIFENG NEW ENERGY TECHNOLOGY CO.,LTD. , http://www.zifengpipeline.com