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The problem of the maintenance tube of the steel sleeve steel prefabricated direct buried internal fixed joint is the reliability of tight waterproofing. It must have excellent mechanical strength. The steel casing is welded due to its high strength. The waterproof sealing function is highly reliable. What are the application standards for steel sleeve steel prefabricated directly buried internal fixing joints?
It uses a second-grade inorganic zinc-rich primer (temperature resistance ≥400 ℃) anti-corrosion coating. The steel sleeve steel prefabricated direct buried internal fixing joint port is sealed with polyethylene film or three-layer PE cold-wrapped tape to avoid moisture or construction before the equipment. Into the water.
Multi-layer staggered banding of thermal insulation material can effectively reduce heat loss, and control the outer appearance of the jacket together, avoiding the occurrence of cold bridges, thereby ensuring the temperature control of the anticorrosive layer of the jacket.
Using insulation material to wrap multiple layers of aluminum foil reflective layers can effectively reduce heat loss and make steam pipes more economical and reasonable.
The steel sleeve steel prefabricated direct buried internal fixing joint is more convenient to construct, simple connection, and it is not suitable for welding on site. The screw connection is used, the screw drives the double buckle, the seal rubber ring is locked, and the axial end seal is useful to prevent loosening, leakage and reduce cost.
No other preparation work on the site is required, no equipment is needed, and it can be simply fixed to the reinforced cage, and the steel sleeve steel prefabricated direct buried internal fixing joint is not affected by the bad weather to ensure the normal progress of the construction.