Valve part is kind of pipeline fittings, which is used to open and close, control, adjust and control the flow of medium parameters (temperature, pressure and flow). According to its function, it can be divided into the cut-off valve, check valve, regulating valve, etc. Zinc Die Casting Valve Cover,Zinc Die Casting Valve Housing,Aluminum Die Casting Valve Part,Malaysia Die Casting Valve Part NINGBO ZHENHAI BOLANG METAL PRODUCT FACTORY , https://www.aldiecastings.com
Valve is the control unit in fluid conveying system, having function of cut-off, regulation, guide, to prevent the reverse flow, voltage regulator, the leakage of the shunt or overflow and so on. Valve parts used in fluid flow control system, have quite a wide varieties and specifications, from the most simple cut-off valve to all kinds of valves used in extremely complex automatic control system.
The valve can be used to control air, water, steam, all kinds of corrosive medium, mud, oil, liquid metal and radioactive medium. According to the material, valve part is divided into iron valves, cast steel valves, stainless steel valves (201, 304, 316, etc.), chrome molybdenum steel valves, molybdenum chrome vanadium steel valve, dual phase steel valves, plastic valves, non-standard custom-made valves, etc.
The batteries in various devices can store power, after which the internal chemicals release the power in any way possible. But there are also problems, such as a sudden fire. So how is this fire phenomenon caused?
According to American experts, if the battery is over-discharged, the internal chemicals will decompose, generating excessive amounts of lithium oxide, burning it, and generating more lithium oxide. The chemists call it "thermal runaway," and the average person sees the fire, which is why the Boeing 787 is banned by the US Airways Administration (FAA). The same happens when the battery is punctured, so the US Transportation Security Administration (TSA) recommends that passengers carefully place the battery in their carry-on baggage instead of consignment.
At the same time, due to the possibility of fire, the lithium battery must be tightly controlled. Battery manufacturers use a charge controller to manage the current to achieve this. In fact, each battery has a built-in small computer to prevent it from over-discharging. This component also controls the current that enters the battery during charging, slowing down the current when it is almost full, and avoids overcharging.