Why does PVC pipe appear sink marks

Why does PVC pipe appear sink marks?        The shrinkage marks on the surface of the PVC pipe will directly affect the appearance of the PVC profile, and even affect the cleanness of the corners, so it will leave regrets for the high-quality PVC pipes. So why does the PVC water pipe have sink marks?         Causes of sink marks on PVC pipes       1. Shrinkage marks and vacuum degree.        The same set [...]

How to deal with PVC tee seepage

How to deal with PVC tee seepage PVC pipes are generally used together with PVC pipe fittings. After all, the routing of PVC water pipes will be bent. Usually, one of the more used fittings is the tee, then if you use the PVC pipe tee What should I do if the water leaks, and how was it removed? 1. If there is a water leakage problem in the PVC tee, find a way to cut off the leaking PVC pipe [...]

How to test the pressure of PVC pipe

How to test the pressure of PVC pipe After the PVC water supply pipe is produced, it needs to test the pressure to reach the standard before it can be regarded as a qualified product, so that it can be installed and used on the PVC water supply pipe. The hydraulic strength test pressure of PVC pipe fittings should be 1.5 times the working pressure of the piping system, but not less than 0.60MPa, and before the hydraulic test, safe [...]

What is the difference between PVC water supply pipe and PVC drainage pipe

PVC pipe are generally divided into PVC water supply pipe and PVC drainage pipe. It has strong acid and alkali resistance, flame resistance and aging resistance. It is widely used in various decoration projects and is a popular decoration material. So what is the difference between PVC water supply pipe and PVC drainage pipe? Let me introduce the difference between them.   The difference between PVC water supply pipe and PVC drainage pipe 1. Different uses:        PVC water supply [...]

How to deal with water seepage in PVC pipes

Today, I will mainly talk about the water seepage problem of PVC pipes. Now I will explain from the following two aspects: one is the various reasons that cause the water leakage of the PVC pipe; the other is how to deal with the water leakage of the PVC pipe; A. Reasons for water leakage of PVC pipes PVC pipes are mainly used for non-pressure conditions, mostly for intermittent water flow. Generally, the water leakage will not be too serious. As [...]

What should be paid attention to when making PVC pipe fittings?

1. Temperature control of PVC pipe fittings PVC pipe fitting temperature control is an important control factor in extrusion operation. The control factors of extrusion molding are barrel temperature, diameter temperature and die temperature. Low temperature, poor plasticization, dull appearance of PVC pipe fittings, poor mechanical properties, poor product quality, high temperature, material decomposition, product discoloration. 2. Screw speed of PVC pipe fittings With the increase of screw speed and extrusion amount, the output can increase, but it is easy to produce [...]

How to solve the yellowing of PVC pipes

The main reason for the yellowing of PVC pipes is that the amount of stabilizer is not enough or the grade is not good, and there should be redness. It is possible that a particularly poor quality stabilizer was used. But in most cases, the problem is caused by unbalanced lubrication, too little lubrication, especially too little external slip, and excessive plasticization causes discoloration and brittleness of the pipe. You can add some titanium dioxide to see if it can cover [...]

Installation of PVC gutter drainage system

1. Installation diagram of PVC gutter falling water system 1-1. Schematic diagram of PVC gutter water system: 1-2. PVC gutter water system node diagram: 5.2inch gutter 7inch gutter 1-3. Roof structure drawing of PVC falling water system: Note 1: The thickness of the cement mortar leveling layer of the eaves is not less than 3cm to ensure the nail-holding strength of the plastic expansion bolt of the skyhook hanger. Note 2: The front end of the roof tile exceeds the inner wall of the gutter (5.2 [...]

GB PVC DWV FITTING REDUCER BUSHING

What is PVC bushing

PVC bushing is a kind of reducing bushing made of PVC. PVC is also called a PVC reducing bushing. It is generally made of the hexagonal bar after cutting and forging. There are many types of threads used. It is used to connect two sections of internal and external threaded pipe fittings with different diameters, which plays an irreplaceable bushing in the pipe connection. PVC bushing is a kind of accessories, which is widely used in domestic large power station supporting [...]