plastic ball valve

Plastic Ball Valve

A plastic ball valve is used for control flow, as it is a kind of ball valve, it is of course endurable and has a good on/off function. In addition, as it is made of plastic, it is lighter than other valves that made by other materials.

A plastic material is typically polymers of high molecular mass, and may contain other substance to improve performance and/or reduce costs. Monomers of plastic are either natural or synthetic organic compounds.The common word plastic should not be confused with the technical adjective plastic, which is applied to any material which endure plastic deformation when strained beyond a certain point. Aluminum which is stamped or forged, for instance, exhibits plasticity in this sense, but is not plastic in the common sense; by comparsion, in their finished forms, some plastics will break before deforming .

There are two types of plastics: thermoplastics and thermosetting polymers. Thermoplastics will soften and melt if enough heat is applied; examples are polyethylene, polystyrene, polyvinyl chloride and polytetrafluoroethylene (PTFE), which is commonly used in the valve industry. Thermosets can melt and take shape once; after they have solidified, they stay solid.

Due to its relatively low cost, ease of manufacture, versatility, and imperviousness to water, plastic is used in an enormous and expanding range of products. They have already displaced many traditional materials.The use of plastics is constrained chiefly by their organic chemistry, which seriously limits their hardness, density, and their ability to resist heat, organic solvents, oxidation, and ionizing radiation. In particular, most plastics will melt or decompose when heated to a few hundred degrees celsius. The vast majority of plastics are composed of polymers of carbon and hydrogen alone or with oxygen, nitrogen, chlorine or sulfur in the backbone.