Under normal circumstances, industrial valves are not subjected to a strength test during use, but the valve body and bonnet or the valve body and bonnet damaged by corrosion should be subjected to a strength test after repair. For safety valves, the...

01 Definition of plasticPlastic is a polymer organic material with resin as the main component, molded into a certain shape at a certain temperature and pressure, and capable of maintaining a predetermined shape at room temperature. Resin refers to a...

PP (polypropylene) PP plastic chemical name: polypropylene, English name: olypropylene (PP for short), specific gravity: 0.9-0.91 g/cm3, molding shrinkage: 1.0-2.5%, molding temperature: 160-220℃. Features: non-toxic, odorless, low density, strength...

Precautions ●When the ball valve is closed, there is still pressurized fluid inside the valve body. ●Before servicing the ball valve, relieve the pipeline pressure and keep the valve in the open position. ●Before repairing the ball valve, disconnec...

CPVC resin is made by chlorination modification of polyvinyl chloride (PVC) resin and is a new type of engineering plastic. The product is white or light yellow odorless, odorless, non-toxic loose particles or powder. After the PVC resin is chlorinat...

Polypropylene (PP) injection molding process PP is commonly referred to as polypropylene, because of its good anti-breaking performance, it is also called "100% plastic". PP is a semi-transparent, semi-crystalline thermoplastic with high strength, go...

PP (polypropylene) PP plastic chemical name: polypropylene, English name: olypropylene (abbreviation PP), specific gravity: 0.9-0.91 g / cubic centimeter, mold shrinkage: 1.0-2.5%, molding temperature: 160-220 °C.Features: Non-toxic, odorless, low de...