Rhein Lighting has developed a line of the high voltage 2835 Led Strip Light which is perfect for home, office and outdoor decoration. The light strip has multiple colors such as white, red, blue, yellow, green and RGB etc. The strip light has clear PVC tubing, which is flexible, transparent and durable and it can be shaped, formed or bent in any angle to perfectly fit the space being decorated. You can customize the length of the LED light, and cut the LED to any length you want along the cutting mark without damage.
The ErP broadened the range of products that were covered in EuP. Earlier only directly energy-consuming (or using) products were covered. Now ErP directive also covers the products related to energy. This could be for example water-saving taps, etc.The idea is to cover the whole product supply chain: design stage, production, transport, packaging, storage, etc.
Rhein Lighting is specialized in the design and manufacture of led panel downlight, led slim down light, backlit Led Panel Light , led rope light, led strip light,Led Neon Flex, Led Neon Stripe, ETL Listed Led Strip Light, led plant light and Led Grow Light etc.
ErP Led Strip,high efficency Led Strip Lights, ErP Led Lights Rhein Lighting Technology Co.,Ltd. , https://www.rheinlighting.com
Gate valve leakage of common failures
1) Valve leakage valve shell generally used castings processing. Although forgings can be used in place of castings for high temperature and pressure conditions, large-format housings are often manufactured from castings, subject to process or cost constraints. Due to the existence of porosity, slag inclusions, cracks, shrinkage and porosity and other large defects, these defects in the valve operation will be exposed at any time, as a threat to safe operation of the hidden danger. Another reason is stem surface due to improper selection of process or material is corroded by media or filler corrosive stem seal surface. Stem up and down movement from the surface of the rust particles bring out the filler, repeatedly fill gaps that appear leaked at this time, such as improper maintenance, high pressure or high-speed media in a very short period of time will fill out, forming a leak. Similarly, high pressure self-sealing valves made of graphite stainless steel wire wound material and medium-flanged sealing valves made of stainless steel with graphite wrap should also prevent this from happening. Another reason is often caused by a large number of media leakage, that is, the gap between the packing gland and the stem is too large, the stem up and down the process of movement, the gap will be too large due to repeated friction filler with a slight end, the final packing compression ratio Pressure drop, leading to leakage. (2) Gate valve leakage caused by many internal valve leakage, the new valve is running shortly after the occurrence of internal leakage and off is not in place, the sealing surface should be mixed with foreign matter. Therefore, the newly installed valve products put into operation before careful examination, careful red-tube can reduce the incidence of such accidents.