Characteristics of PVC Silencer Pipe

As a subdivision of drainage pipe applications, which is also made of PVC, PE, and PP materials. Here we first introduce PVC silencer pipes.

PVC silencer pipe source and purpose

In modern cities, people gather in buildings because the drain pipes in kitchens and bathrooms are the source of noise in the home.Especially thicker pipes will make a lot of noise when others use them late at night.Many people with high work pressure have sleep problems. If the house has loud drainage noise, it will simply make it worse.How can we help everyone get a good rest and make our homes quieter? The PVC silencer tube was born.

Classification of PVC silencer pipes

The principle of silencing is: Spiral silencing pipes are mainly used in vertical drainage systems. The water flowing through the spiral silencing pipes flows in a spiral along the guide ribs on the inner wall of the pipe. Due to the diversion effect of the guide ribs, the chaotic state of the flow is avoided, thus Reduces the impact of water flow on the pipe wall and reduces noise.At the same time, since the water flows down spirally along the inner wall of the pipe, an intermediate air passage is formed in the center of the drainage pipe, which better realizes the smooth discharge of gas during vertical drainage and avoids the noise caused by it.Due to the improved ventilation capacity of the vertical drainage system, the air pressure resistance when the water flow falls is eliminated, and the water flow forms a stable and dense flow along the inner wall of the drainage pipe, thus greatly improving the water flow capacity.Good ventilation capacity also stabilizes the pressure in the system, significantly improving the safety of the drainage system.

According to different product structures, PVC silencer pipes can be divided into: solid wall ordinary spiral silencer pipes, double-wall hollow spiral silencer pipes, and reinforced spiral silencer pipes.

PVC-U double wall hollow spiral silencer drainage pipe

It is to adopt a double-layer structure design to form a hollow layer on the conventional PVC pipe making machine or to design spiral ribs on the inner wall of the pipe.The formation of the hollow layer makes it have sound insulation and sound insulation properties, and the design of the spiral ribs allows the water discharged from the horizontal pipe into the riser to form a denser rotating water flow under the effective guidance of the spiral ribs. Through testing, the noise is lower than that of ordinary PVC. Drainage pipes and cast iron pipes are 30-40 decibels lower, making the living environment warmer and quieter.In order to achieve the purpose of noise reduction and silence, making the working and living environment warmer and quieter.The hollow spiral silencer tube has an inner and outer double-layer design. A vacuum layer is formed in the middle and there are six spiral ribs on the inner tube wall, which can achieve double silencing, so the effect is the best!

Solid wall spiral silencer

On the basis of PVC-U smooth wall pipe extruder,  several triangular spiral convex ribs are added to the inner wall of the pipe to achieve water vapor separation and spiral drainage. The drainage flow rate is about 5-6 liters/second.

Reinforced spiral silencer

The improved solid wall spiral silencer increases the pitch to 800mm, the reinforcement ribs range from 1 to 12, and the rib height increases to 3.0mm, which greatly enhances the drainage and silencing capabilities. The blade type single vertical pipe is matched with a special swirl flow. The three-way drainage flow rate is 13 liters/second (can be used above the 20th floor)

When the water in the horizontal pipe is discharged into the riser, the convex spiral ribs can guide the water flow, making the water flow spirally fall along the tangential flow, avoiding the collision of multi-directional water inflows, and effectively reducing the impact of external forces on the pipe. The longitudinal rupture phenomenon also greatly reduces the noise of the pipeline system.

Characteristics between pipes

● Noise reduction ability

The spiral silencer pipe reduces the noise by 8 to 10 decibels compared with the ordinary PVC drainage pipe, and the hollow spiral silencer pipe reduces the noise by 18 to 20 decibels than the ordinary PVC drainage pipe. The noise of the traditional drainage system is 60dB, while the reinforced spiral pipe drainage noise is even lower and can reach below 47dB.

● Drainage capacity

The drainage flow rate of single-blade single-stand pipe and reinforced spiral silencer pipe with special swirling tee is 10-13 liters/second (can be used above 20 floors), while the drainage capacity of PVC pipe machine spiral silencer pipe and double riser pipe is limited to 6 liters/second. Second.