Stainless Steel Round Tubes 304
Stainless Steel Round Tubes 304
Matters needing attention
Cause smooth and beautiful surface is polluted, the best solution is to use plastic wrap wrap protection with the installation of UPVC spiral steel pipe in time, to be removed after completion. In addition, it is necessary to strengthen the protection of the finished product of the UPVC spiral pipeline during the construction process, and it is strictly prohibited to climb on the pipeline, tie the safety rope, attach the foot and hand board, use as support or borrow for other purposes. The top surface elevation of the floor drain should be 5~10mm lower than the ground, and the depth of the floor drain water seal should not be less than 50mm. The purpose is to prevent the harmful gas in the sewage pipe from entering the room after the water seal is broken and contaminating the indoor environmental health.
Few people mention in the design description of water supply and drainage, construction and construction units in order to reduce the cost of the use of low-cost floor drains on the market, this floor drain seal is generally not more than 3 cm, can not meet the water seal depth requirements. In addition, when residents decorate their houses, they choose 304 stainless steel welded pipes on the decoration market to replace the original plastic floor drains, although the appearance is bright and beautiful, the internal water seal is also very shallow. When drainage, the water seal of the floor drain is damaged due to positive pressure (lower floor) or negative pressure (higher floor), and the odor enters the room.
The layout of the drainage outlet pipe has a great influence on the design flow of the system. Riser and discharge pipe connection 304 stainless steel welded pipe to use reducing elbow, the outlet pipe is better than the riser one larger pipe diameter, the outlet pipe should be as smooth as possible to discharge the sewage outdoors, no elbow or B tube in the middle. Many projects have confirmed that the finer drain outlet 304 stainless steel welded pipe and the pipe fittings added to the outlet pipe will cause adverse changes in the pressure distribution in the pipe, reduce the allowable flow value and prone to poor drainage of the toilet during future use.
304 stainless steel welding pipe drainage system In order to ensure that the spiral pipe water flow spiral fall, the riser can not be connected with other risers, so it is necessary to take an independent single riser drainage system, which is also one of the characteristics of 304 stainless steel welded pipe. Do not gild the lily, copy the drainage system of cast iron pipe, increase the exhaust pipe in the high-rise building, if the exhaust pipe is increased, it wastes the material and destroys the drainage characteristics of 304 stainless steel welded pipe.
The side water inlet special three-way or four-way pipe fitting used with 304 stainless steel welding pipe factory belongs to the 304 stainless steel welded pipe extrusion rubber ring seal sliding joint. Generally, the distance allowed to expand and slide is within the temperature difference range of the conventional construction and use stage. According to the UPVC pipeline expansion system, the pipe length is allowed to be 4M, that is to say, whether it is a riser or a horizontal branch pipe. As long as the pipe section is within 4M, do not install another expansion joint. 304 stainless steel welded pipe is sealed with nut extruded rubber ring. This joint is a sliding joint that can play a telescopic role, so the appropriate reserved gap after the tube is inserted should be considered in accordance with the regulations. 304 stainless steel welded pipe to avoid construction due to individual operators to save trouble, resulting in too large or too small reserved gap, the future with seasonal temperature changes, pipeline deformation caused by leakage.
aterial |
200, 300, 400 series |
Size(round pipe) |
9.5, 12.7, 15.9, |
Size(square pipe) |
10×10,12×12,18×18, |
Size (oval pipe) |
30×15,80×40 mm |
Thickness |
0.01-3 mm |
Length |
6m or according |
Outer diameter |
8-219mm |
Tolerance |
Outer diameter :±0.2mm |
Process method |
Code drawn, |
Finishing |
A: sanded |
Appplications
Quality Assurance
Surface
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