1. For the most common white UPVC drainage pipe, the color is milky white and uniform, and the inner and outer walls are relatively smooth but a little awkward. The color of the UPVC drainage pipe is not white or white, and it is yellow. It is harder, some colors are uneven, some outer walls are particularly smooth, and the inner walls are rough, sometimes with acupuncture or small holes.
2. The toughness of UPVC drains is a very critical indicator. The toughness of the tube, when we saw it into a narrow strip, try to fold 180 °, if it is broken, it shows that the toughness is very poor, brittleness; if it is difficult to break, it means that it is tough, and the more difficult it is to fold The pipe can be broken, the strength is very good, and the toughness is generally good. Finally, the broken sputum can be observed (except for the sawing mouth). The finer the sputum, the better the homogenization, strength and toughness of the pipe.
3. The impact resistance of the UPVC drain pipe can also be judged by a simple method. The room temperature can be selected to be close to 20 ° C. It will be sawed into a 200 mm long pipe section (for a 110 mm pipe) and slammed with a hammer. A good pipe is difficult to break at once. (The thicker the pipe, the greater the bearing capacity).
4. Conditional users can make the pipe into a dumbbell type with a width of 6mm in parallel and a tensile strength of 5mm/min. The tensile strength is greater than 10MPa. The longer you stretch, the better the tube.
5. When the user chooses UPVC drain pipe, he should choose a large well-known enterprise's products at a reputable dealership, or go to the famous brand's direct sales point. After our preliminary investigation, the qualified rate of miscellaneous UPVC pipes sold by roadside small distribution points is less than 20%. 
Editor in charge: Wang Zhen
A pneumatic Hydraulic Pump is a device that combines the power of compressed air with the principles of hydraulics to generate hydraulic pressure. It is commonly used in various industrial applications where a high amount of force or pressure is required.
The pump consists of a pneumatic motor and a hydraulic pump, which are connected together. The pneumatic motor is powered by compressed air and converts the energy from the air into mechanical motion. This motion is then transferred to the hydraulic pump, which converts it into hydraulic pressure.
The hydraulic pressure generated by the pump can be used to power hydraulic cylinders, motors, or other hydraulic devices. It is commonly used in industries such as automotive, construction, manufacturing, and mining.
One of the advantages of a pneumatic hydraulic pump is its ability to generate high pressure with relatively low energy input. It is also compact in size and can be easily transported and installed. Additionally, it does not produce any emissions or require any fuel, making it environmentally friendly.
However, pneumatic hydraulic pumps can be noisy and require a constant supply of compressed air to operate. They also have limitations in terms of the maximum pressure they can generate.
Overall, a pneumatic hydraulic pump is a versatile and efficient device that combines the benefits of both pneumatic and hydraulic systems. It is widely used in various industries for its ability to generate high pressure and power hydraulic equipment.
Pneumatic Hydraulic Pump, Air Operated Hydraulic Pump, Air Powered Hydraulic Pump, Pneumatic Hydraulic Pressure Pump
Yantai Dongyue Hydraulic Technology Co., Ltd , https://www.deeleap.com