Vacuum Suction Plastic is a kind of water-based adhesive polyurethane glue. Water-based polyurethane adhesive is widely used in the market for its water-based, non-toxic and convenient use. With people's pursuit of low-carbon environmental protection, a series of water-based adhesives have been born.
At present, the vacuum suction plastics on the market are roughly divided into: PVC vacuum suction plastics, PET vacuum suction plastics, particleboard vacuum suction plastics, wooden door vacuum suction plastics, etc.
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Vacuum suction plastic classification:
Floating ball valve structure characteristics
Floating ball valve is characterized by the main ball without the support shaft, the ball is two seats holding the "floating" state, which is mainly used in the pipeline to cut off, distribute and change the direction of medium flow. The main features of the floating ball valve seat seal design, reliable sealing valve stem seal, fire electrostatic function, automatic pressure relief and locking devices and other structural features. Applies to: chemical, petroleum, natural gas, metallurgy, and other industries and containing hydrogen sulfide medium, more impurities, serious corrosion of natural gas long-distance pipeline. Floating ball valve's main structural features are: 1. The valve is provided with open and close position instructions; 2. Locking device; 3. Stem fly-proof structure; 4. Antistatic device; 5. Fireproof structure; 6. Unique seat sealing structure ; 7. flange (body and left body connection) no leakage structure. Floating ball valve according to different requirements, based on the shell material is divided into: ordinary carbon steel series (WCB & A105; stainless steel series 304,316; low temperature steel series LCB, LCC; anti-sulfur series etc .. Floating ball valve for general industrial use.