Certificate : UL / WRAS / SAA / ISO / CE / NSF
HDPE Pipe : 12mm-1800mm
PVC pipe : 20mm - 1000mm
HDPE Fittings : 25mm -800mm
HDPE Welding Machine : Manual and Hydraulic Butt Welding Fusion Machine
9/8/2016· Contrary to popular belief, old age is not responsible for many pipe failures. Instead, a failure to prevent and control corrosion is at fault. Galvanic corrosion is one of the most common types of corrosion. Water mains in particular suffer from this problem. We often Puhui Pipe manufacturer in China
6/6/2017· PVC or polyvinyl chloride pluing pipe has essentially eliminated corrosion in pluing supply and drain lines, but plenty of homes still have old galvanized pipe. Copper isn’t immune from corrosion, either, but it’s sometimes easier to spot than corrosion on galvanized metal.
The usual length of a pipe section is 12 ft, but lengths up to 20 ft can be obtained. Cast iron pipe is made in several thickness classes for various pressures up to a maximum of 350 psi. Cast-iron pipes are usually dipped in a bituminous compound for protection against corrosion and to improve their hydraulic qualities; larger sizes may be provided with a lining of cement mortar.
Protectively coated pipe or tubing shall be inspected and tested, and a visible void, damage, or imperfection to the pipe coating shall be repaired in an approved manner. 312.6 Freezing Protection No water, soil, or waste pipe shall be installed or permitted outside of a building, in attics or crawl spaces, or in an exterior wall unless, where necessary, adequate provision is made to protect Puhui Pipe manufacturer in China
Foil, Film & Foam Tapes PW 100 PW 100 Corrosion-Resistant PVC Pipe Wrap Tape General purpose, corrosion-resistant PVC tape for use on under and above ground pipe installations. PW 100 pipe wrap tape offers excellent moisture resistance and conformability to protect metal and plastic piping. Where To Buy Technical Data Sheet Features & Benefits General purpose grade PVC pipe wrap tapeResists Puhui Pipe manufacturer in China
21/10/· Although the PVC pipe is part of the system, it can theoretically move independent of the tape and topcoat without causing a problem, as long as all edges are sealed against water egress and entry. Preparation of the concrete should be accomplished through abrasive blasting or *pressure washing, resulting in a surface that is free of efflorescence, loose material and oil/grease.
Guidelines for Field Installation of Corrosion Monitoring and hodic Protection Systems 8/2 Puhui Pipe manufacturer in China 27 Schematic shows jumper bond installation for PVC to HDPE fitting. Puhui Pipe manufacturer in China..28 28 Examples of jumper bonds for various pipe situations: (a) The mortar coating was Puhui Pipe manufacturer in China
5/12/2016· High velocity erosion corrosion — Erosion corrosion is the increase in the rate of metal deterioration from abrasive or erosion effects from high velocity water flow in the pipe. Erosion can be identified by grooves and rounded holes, which usually are smooth and have a turbulent pitting, directional or flowing pattern.
Prepared by AWWA with assistance from Economic and Engineering Services, Inc. 4 PB 43% PE 39% PVC 15% Gasket Materials 1% AC 1% ABS 1% Figure 1 Pipe materials involved in U.S. water system permeation incidents (Holsen et al., 1991a) TCE + PCE 5
Guide to Insulating Chilled Water Systems First Edition, 2015 1-2 SECTION I: PERFORMANCE CRITERIA 1.0 Role of Pipe Insulation Pipe insulation is designed to do one or more of the following: Conserve energy and help reduce the building operating cost Control condensation
PVC pipe exposed to ultraviolet light for long periods of time loses some strength but rarely enough to cause a significant drop in the material''s ability to withstand water pressure. Ultraviolet rays also cause color changes in the pipe''s exterior.
INSTALLATION GUIDE FOR PVC PRESSURE PIPE 7 PRESSURE PIPE TRENCHING: Do not let the excavated material block sidewalks, drives, or u lity outlets. Follow all safety rules and regula ons. Protect workers by using shee ng and trench boxes in
hodic protection (CP) is by far the best way to stop corrosion on pipelines. It uses impressed currents from a fixed anode to interfere with the electrical circuit in the corrosion cell. It is 100 percent effective against most forms of external pipe corrosion.
This report documents the August inspection of a 4-inch, cast iron pipe installed with polyethylene encasement in 1958 by the Lafourche Parish Water District No. 1. This pipeline is the first known installation to use loose polyethylene encasement as Puhui Pipe manufacturer in China
Corrosion-resistant output adapter as standard and an optional stainless HDPE castings are made of cast bronze.Valve bearing and delrin material A/or// material valves, pipe prevents the return at the water in the wellbare. Noryl material shaft centering bearing, made
Corrosion is a major cause of water main breaks, and PVC Pipes boast the lowest failure rate when compared to alternate piping materials. The major finding of a recent study 1 is that PVC Pipe has the lowest overall failure rate when compared to cast iron, ductile iron,
This corrosion has led the city to replace many other cast iron water mains in recent years with corrosion-resistant thermoplastic pipe materials, such as PVC and HDPE. The C900/RJ PVC product uses a high-strength spline to connect pipe lengths and hold the pipe together during installation and pressurization, while elastomeric O-rings provide a pressure seal.
1. Purpose This document describes the method statement for conduit installation which includes GI & PVC conduits and accessories for the project, and to ensure that all concerned persons are familiar with the sequence of activities, utilization of resources, and execution of the works in compliance with applicable Safety and Quality Procedures, and Project Documents and Specifiion.
PVC pipes are in danger of freezing when surrounding temperatures approach 20 degrees Fahrenheit. Ice begins to form and gradually blocks the pipe. This blockage causes a rise in water pressure. Eventually the pipe ruptures and sends water everywhere. Water damage from a burst pipe
External corrosion that requires protection of pipelines, mainly occurs due to the fault of high humidity and precipitation of condensate on the walls of an iron or HDPE pipe. At a high level of air humidity occurs such an unpleasant phenomenon as deposition of condensation on the cold metallic surface of the tubes.
Corrosion on pipes and fittings It is rather common for corrosion to gather on fittings and water pipes. Overall corrosion is generally considered a maintenance type of item. However, there are times that the corrosion will lead to leaking. ( READ MORE ABOUT CORROSION AND LEAKS)
