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PE/PPR Dual-Pipe Extrusion Line

A new type of PE/PPR dual-pipe extrusion line (model: PE 32-2; PPR 32-2) has been successfully developed by Ningbo Fangli Technology Co., Ltd. based on years’ R&D as well as production experience accumulated. The line is suitable for the production of PE/PPR pipe diameter range from 12mm to 32mm and......

Manning's "n" For PVC Gravity Sewer Pipe

Research on sewer-pipe hydraulics has shown that gravity sewer pipes can be conservatively designed using Manning's equation: Q = (1.486/n) (A) (R2/3) (S1/2)

Background Information on PE Piping

Polyethylene (PE) pipe was first commercially made in the 1940s, after World War II. Today, it is the second most widely used plastic pipe material, after polyvinyl chloride (PVC). These two materials account for over 90 percent of all currently produced plastic pipe.

MAKING SENSE OF DIAMETER TYPES FOR PVC PIPE

There are many different outside-diameter (OD) types for PVC pipe. Some OD types are used solely for pressure pipe, some solely for gravity sewer pipe, and some for both applications. Each OD type has one or more descriptive acronyms. Although at first the combination of OD types, acronyms, and appl......

Comparison Between Counter Rotating Conical Twin-screw Extruder and Parallel Twin-screw Extruder

According to the rotation direction of twin-screw extruder, it can be divided into two types: co rotating extruder and counter rotating extruder. Co rotating twin-screw extruder means that the rotation direction of two screws is the same when they work; The opposite direction extruder refers to that......

Dustless Ring Cutting Machine

Pipe cutting machine refers to the equipment used to cut pipes. It is also one of the most commonly used equipment in pipe prefabrication production. It is mainly a kind of equipment to cut long pipes separately for subsequent groove and welding. There are many types of pipe cutting machines. Today ......

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