News

  • What are the classifications of gas valves

    16-05-2022

    Gas valves have a wide range of uses, a wide variety, and a variety of classification methods. In general, it can be divided into two categories:The first type of automatic valve: is a valve that operates by itself depending on the ability of the gas itself. Such as check valve, regulating valve, pr...

  • What are the standards and specifications for valve pressure testing

    16-05-2022

    The standards and specifications for valve pressure testing are as follows: 1. Under normal circumstances, the valve is not subjected to a strength test, but the valve body and bonnet or valve body and bonnet damaged by corrosion should be subjected to a strength test after repair. For the safety va...

  • What are the standards for hot melt welding of PE pipes

    16-05-2022

    1. Fix the welding nozzle on the heat welding machine, the amount of misalignment is less than 20% of the thickness 2. Use a bilateral cutting machine to cut the weld to be smooth and smooth 3. Adjust the temperature to 190~240℃ 4. Wipe the heating plate with a clean cotton cloth 5. Clamp the two se...

  • What are the precautions for the use of PPR water pipes

    16-05-2022

    1. The quality of the PPR pipe is not as good as that of the metal pipe. During construction, attention should be paid to protection to avoid damage to the PPR pipe caused by inappropriate external force. Mark the position of the pipeline after dark application, so as not to damage the pipeline for ...

  • What is a PPR pipe and what it is used for

    16-05-2022

    PPR pipe is a straight and rigid cylindrical pipe, made from Polypropylene Random Copolymer plastic, produced through a continuous extrusion process. They are commonly offered in green or white color, and in outer diameter sizes ranging from 20mm to 110mm making the pipe walls far thicker than PVC. ...

  • How to Detect Thermostatic Radiator Valves

    16-05-2022

    The function of the thermostatic valve is to adjust the water temperature when people take a bath so that the water temperature reaches the appropriate temperature. If the thermostatic valve is broken, how to repair it?Step 1: Connect the garden hose to the PPR Pipes , and put the other end in the b...