Stainless steel waterproof sleeve pipes are divided into two types: stainless steel rigid waterproof sleeve pipes and stainless steel flexible waterproof sleeve pipes. These pipes, when used to cross floors and roofs with pre-buried rigid waterproof sleeve pipes, effectively prevent leakage and water damage to the floorboards in construction.

In drainage and water supply projects, it is commonly used to have pipelines pass through concrete walls for clean water tanks in water supply systems, factory buildings, civil defense projects, and sewage treatment plants. If the pipelines need to be movable vertically and horizontally, then flexible options are required.

Waterproof sleeves, when used in contact with corrosive media, designers should select suitable corrosion-resistant materials based on the properties of the medium and the anti-corrosion requirements, such as 316L stainless steel, 304 stainless steel, 201 stainless steel, and so on.

Stainless steel waterproof sleeve is made from 304 and 316L stainless steel materials, and both ends should be mechanically trimmed (e.g., using a toothless saw). These waterproof sleeves are primarily used in pipelines carrying various corrosive media, such as chemical process pipelines, chemical reaction pools, and corrosive sewage treatment pipelines. The material is typically selected based on customer requirements; 304 is a general-purpose stainless steel with good high-temperature resistance, typically used at temperatures below 650°C. 304 stainless steel boasts excellent corrosion resistance and good intergranular corrosion resistance. Of course, if stricter requirements are needed, 316L stainless steel can be used to produce the waterproof sleeve, as it is enhanced with Mo, offering exceptional corrosion resistance, atmospheric corrosion resistance, and high-temperature strength, suitable for use under harsh conditions; it also has excellent work-hardening properties (non-magnetic).

The Importance of Stainless Steel Expansion Joints in Pipe Installation: Due to the significant temperature variations in connecting expansion pipes or bellows, the use of expansion joints is a protective measure. These joints are a new product for connecting pumps, valves, and pipelines, as they are connected with full bolts to form an integrated unit with a certain degree of displacement, facilitating installation. They can withstand the axial pressure of pipelines. This allows for adjustments based on the on-site installation dimensions during installation and maintenance, and during operation, not only do they improve work efficiency, but they also provide certain protective effects for pipeline equipment such as pumps and valves.