Plastic pipes include many, such as PPR pipes, PVC pipes, Upvc pipes, copper pipes, steel pipes, fiber pipes, composite pipes, etc. The most common and commonly used ones are PVC pipes, steel pipes and water pipes. In home decoration, we often encounter this kind of problem: how to buy the pipe, which is better or not? How do we judge this? In fact, there are many ways to know the quality of these products, etc. Can be identified. How to buy pp plastic pipe?
Six strokes of pipe purchase method:
First, it is the "touch" texture. In general, coarse particles are likely to incorporate impurities.
Second, it is a "look" color. PP-R pipes are mainly white, gray and green. Consumers often think that white is the best. In fact, color is not a criterion for judging quality.
Third, it is the smell of "smelling". The main material of the PP-R pipe is polypropylene. The good pipe has no odor, and the poor one has a strange smell. It is likely to be blended with polyethylene instead of polypropylene.
Fourth, it is "pinch" hardness. The PP-R tube has a considerable hardness, and it is possible to pinch the deformed tube, which is certainly not a PP-R tube.
Fifth, it is "ç ¸" flexibility. A good PP-R tube, "rebound" is good, easy to smash naturally is not a good PP-R tube. However, the hardness is not equal to the elasticity. Some manufacturers increase the hardness by adding too much impurities such as calcium carbonate, so they are not broken, and they are easy to be brittle after a long time.
Sixth, it is "burning" smoke and smell. The PP-R tube, which is mixed with recycled plastic and other impurities, emits black smoke and has a pungent odor. After burning a good material, not only will it not emit black smoke or odor, but after burning, the molten liquid will still be very clean.
Need to pay attention to the purchase
First, when the pipe is purchased, you must first understand the product information. In particular, its material, the quality of raw materials determines the quality and age of the product. Comprehensively compare products to find the best value for money product purchase. It cannot be said that only the price of the product is emphasized, and the quality of the most important product is ignored.
Second, if you don't know how to understand this product, you must find someone who knows the product to follow the purchase of the pipe. This way, you don't have to buy products that you don't need.
Solar sensor lights use solar panels to charge the rechargeable battery. When there is enough light, the solar panel generates current and voltage to charge the battery. Night by intelligent infrared and light control switch to control the battery output power to the load. Mainly used for road lighting, yurt, tents, gardens, yars, parks and other outdoor lighting.
Solar Panel:5.5V,150mA,Poly-crystalline
Battery:rechargeable Lithium battery,3.7V,2200mAh*1
LED Lamp: 8LEDx0.066W/Epistar Chip
LED Luminous:7Lumen/LED
LED Color Temperature:Cool White:5500-6000K;
Lamp Luminous Flux: 45LM
Material:ABS
Operation: PIR motion sensor
Cable Length: all in one,no cable
Working Time:The motion sensor will keep the light On as long as there is movement.If there is no movement, the light will switch off after 35 seconds.
Charging Time:empty battery needs 12hours to get full Charged
Sensor area: 5m and 60 degree angle
Warranty: 1 Year
Application:Roof Lighting,such as portable toilet
Install: Easy to install,simply to cut a hole 50mm in a diameter in roofing,Unscrew clear lens and black nut from the unit.Leave the silicon O-ring in place.Switch light on by fully depressing white switch on bottom, then light should stay on.Insert light through hole and screw the holding plate and clear light cover back on.Once in place,light will automatically turns on/off.Charge in sunlight,An epoxy can be applied to back-nut to prevent theft.
Solar Panel Lights,Solar Panel Street Light,Garden Motion Lights,Automatic Solar Lights
HEBEI ZIFENG NEW ENERGY TECHNOLOGY CO.,LTD. , https://www.zifengpipeline.com