Renovation must know PPR pipe knowledge

Everyone is new to home decoration, especially in the waterway, you will definitely use PPR pipe. There are so many brands in the market now, but have you learned how to distinguish quality? If improper products are used, and the family becomes a country, it will not only cost a great deal, but also affect the mood. You should know some PPR related knowledge. The following are some things you need to know:

Brand Store: Expert Weapon: Suggestions for PPR Plumbing Installation

1, PPR material composition.

The chemical name of PPR is random copolymer polypropylene. It can be seen that its material is polypropylene, and the process is gas-phase copolymerization, so it is composed of synthetic chemical materials. At present, the best PPR raw material supply on the market is from Europe, and the second supplier is Korea. Currently, there is no high-quality PPR raw material supplier in China. So when choosing a PPR tube, ask where does your PPR source come from? Due to cost factors, the actual manufacturers choose Korean raw materials, but unscrupulous manufacturers will choose to recycle the waste for reprocessing. So, look at the colors and you'll know it.

2, the difference between PPR hot and cold water pipes.

Different cold and hot water pipes have different wall thicknesses, and they can withstand different pressures. Cold water pipes are 16 kilograms and hot water pipes are 20 kilograms. In terms of thermal conductivity, they are not the same. Hot water pipes can be used for cold water. Cold water pipes cannot be used for hot water. Divided into hot and cold pipes, mainly because of the lower requirements of cold water pipes, so can quote lower prices. If economic conditions permit, buying hot water pipes is the best option.

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Fastening For Urban Transit

Main components:

2 Rail clip
2 T bolts with hex nut and Washers
4 Sleeper screw
4 Lock washers
4 Plastic Inserts
1 Rail pad
2 Insulator
1 Vibration absorber
1 Resilient sole pad

Components description:

W type Rail Elastic Clip/ SKL clip

Raw material: 60Si2CrA, 38Si7
Type: SKL1, SKL3, SKL12, SKL14, etc
Surface: plain ( oil), black paint, color paint, zinc, hdg, etc

Rail pad
Raw material: EVA/Elastomer/Rubber
Surface: plain

Tie plate/ Rail base plate
Raw material: QT400-15, QT450-10, QT500-7, ZG25, ZG35, ZG45, etc
Surface: plain (oil)

Railway bolt
Grade: 4.6, 4.8, 5.6, 8.8, 10.9, 12.9, etc
Raw material: Q235, 35K, 45#, 40Mn2, 20MnSi, 35CrMo, 40Cr, 42CrMo, etc
Surface: plain (oil), zinc, hdg, black, etc

Plain washer/ Spring washer
Size: from 3/4-1, etc
Raw material: 65Mn, 60Si2Mn, 70#
Surface: black, zinc, hdg

Screw Spike/ Timber screw
Grade: 4.6, 5.6, 8.8
Raw material: Q235, 35K, 45#, 40Mn2, 20MnSi,
Surface: plain (oil), black, zinc, hdg, etc

Metro Fastening System,Underground Fastening System,Fastening For Light Rails,Fastening For Tram

TAICANG ZHONGBO RAILWAY FASTENING CO., LTD. , https://www.railfastener.com