At present, the water pipe used in the renovation is a more durable, more convenient way to install PPR water pipe. And the installation of PPR water pipe is a more important part of the hidden project, and the decorators need to know the installation process.
Step 1 Material Acceptance
The quality of construction materials directly affect the construction and the future use of the resulting from poor materials caused by the hidden dangers. The water pipe should be strictly inspected before installation, and the inner and outer walls should be smooth and flat, without bubbles, cracks, crack, dents, peeling and serious cold spots and obvious traces.
Step 2 The scene to the low-down
Installation personnel should carefully read the drawings, confirm the water heaters, sinks, basins, washing machines and other facilities and equipment location, understanding of the owners or designers have no special requirements, if special requirements should be in accordance with the owner or designer instructions to carry out the construction.
Step 3 Tubing Cutting.
In order to install unnecessary waste behavior, the installation personnel should be measured the length of the required tubing to cut. Pipe cutting using special-purpose tube shear cut, pipe cutting blade card should be adjusted to the diameter of the cut, the rotation should be evenly afterburner, when the cut, the section should be perpendicular to the tube axis, cut off, the fracture of the whole round section without burr.
PPR Pipe and fittings are connected by hot melt mode, the hot melt connection is reliable, the operation is convenient, the air tightness is good, the interface strength is high. Before connecting, remove dust and foreign matter from the pipes and accessories. The pipe connection uses the welding machine to heat the pipe and the pipe fittings, the hot melt depth and the time of the pipe and the fitting should meet the requirement. Do not rotate when hot-melt welding. When connecting with wire fittings, the raw material should be twisted to ensure sealing.
Step 5 Pipe Fixed
In order to ensure that the water pipes will not be used in the future, all water pipes should be fastened with a tube card because of the resonance of the hydraulic pressure. Pipe card spacing in the 400-500mm, outside the 25mm pipe, corner and water meter and pipe terminal 100mm set up a pipe card. In case of special circumstances go geosyncline water pipe, mortar landfill thickness need >100mm.
Key to the acceptance of the crackdown
After the installation of the water pipe, to carry out a crackdown test, all installed after the wire bends need to install the bulkhead or triangular valve to ensure that the seal.
Water pipe test pressure is to ensure the quality of water pipes and installation of the test, water pipe pressure to use the pressure pump into the tube into the ≥0.6mpa pressures (some manufacturers in order to reflect their own brand of pipe quality, recommended pipe pressure 0.8Mpa. ), pressure measurement time is not less than 30 minutes, the stress drop <0.05mpa.
Water pipe installation, should be horizontal vertical, Zouge right cold, spacing ≥30mm. Hot and cold pipe spacing is not less than 150mm. Hot and cold water pipe can not be worn with a hole, should be separated open the hole. When the water pipe is parallel to the gas pipe, the distance between the ≥50mm and the ≥10mm. When the balcony needs to install the water pipe, should fill the valve.