What's the difference between PVC water supply pipe, PVC drainage pipe and PVC threading pipe? Thank you.

Mainly the difference in thickness, pipe diameter and strength.

I. Thickness

The wall of VC water supply pipe is thick, the wall of PVC drainage pipe is thin, and the wall of PVC threading pipe is thin.

Second, the pipe diameter

The diameter of PVC water supply pipe is generally medium, the diameter of PVC drainage pipe is generally large, and PVC threading pipe can have different diameters outdoors.

Third, strength.

The PVC water supply pipe has high strength, the PVC drainage pipe has medium strength, and the PVC threading pipe is soft.

Extended data:

The harm of PVC:

PVC, also known as polyvinyl chloride, is a commonly used plastic. It is a resin composed of PVC resin, plasticizer and antioxidant, and it is not toxic in itself.

However, the main auxiliary materials such as plasticizers and antioxidants are toxic. The plasticizers used in daily-use PVC plastics mainly include dibutyl terephthalate and dioctyl phthalate. These chemicals are toxic, and so is lead stearate, an antioxidant of PVC.

When PVC products containing lead salt antioxidants come into contact with solvents such as ethanol and ether, lead will be precipitated.

When PVC containing lead salt is used as food packaging, lead molecules will diffuse into oil when encountering fried dough sticks, fried cakes, fried fish, cooked meat products and cakes and snacks, so it is not possible to use PVC plastic bags to pack food, especially oily food.

In addition, PVC plastic products will slowly decompose hydrogen chloride gas at high temperature, such as about 50℃, which is harmful to human body, so PVC products are not suitable as food packaging materials.

PVC is the main source of dioxins. Dioxin (TCDD) is the most deadly substance in the dioxin family, and it is a well-known carcinogen, hormone decomposer and toxic compound, which is extremely harmful to people and animals.

When PVC is produced, recycled and destroyed in an incinerator, or when PVC products are accidentally burned, such as landfill, dioxins will be produced.

References:

PVC_ Baidu encyclopedia