Explosion-proof pressure reducing valve safety: do not pay attention to safety easily lead to disaster! Loss will be heavy! 1 corrosive media: the choice of plastic valve and stainless steel; for the corrosive medium must use isolation diaphragm. Example CD-F. Z3CF. Neutral medium, copper alloy should also be used as the valve housing material of the valve, otherwise, the valve housing often rust off, especially occasions not frequent movements. Ammonia valves can not use copper. 2. Explosive environment: you must choose the appropriate level of explosion-proof products, open-air installation or dust should be more occasions use waterproof, dustproof varieties. 3. Explosion-proof valve nominal pressure should exceed the maximum working pressure in the pipe. 4, the use of pressure reducing valve in different environments are not the same, the environmental conditions points: (1), the maximum and minimum temperature of the environment should be selected within the allowable range, if there is excess to be made for special orders. (2), the environment is high relative humidity and rain drops and other occasions, the election should be waterproof valve (3), the environment often have vibration, bump and impact occasions such as special varieties should be selected, such as marine valves. (4) Corrosive or explosive environments should be used with priority given to corrosion resistance (5). If the environment is limited, please use a multi-functional pressure relief valve, which eliminates the need for bypass and Three manual valves and easy on-line maintenance.
Piston For MITSUBISHI
Piston is a reciprocating movement in the cylinder body of an automobile engine.
1. The basic structure of the piston can be divided into top, head and skirt. The top of the piston is the main part of the combustion chamber, and its shape is related to the selected combustion chamber form.
2. Gasoline engines mostly use flat-top pistons, which have the advantage of small heat absorption area.
3. The top of the diesel Engine Piston often has a variety of pits, and its specific shape, position and size must be adapted to the formation and combustion requirements of the diesel engine mixture.
The production process of a piston usually involves several steps, including casting, machining, heat treatment, surface treatment and assembly.
1. Casting: The first step in the piston production process is casting. This involves pouring molten metal, such as aluminum alloy or cast iron, into a mold to form the desired piston shape.
2. Machining: Once the piston is cast, it is machined to perfect its shape and size. This involves using cutting tools, such as lathes and milling machines, to remove excess material and create the final shape of the piston.
3. Heat treatment: After processing, the piston is usually heat treated to improve its mechanical properties. This involves subjecting the piston to high temperatures and then cooling it slowly to achieve the desired level of hardness and strength.
4. Surface treatment: The piston is then subjected to surface treatment, such as anodizing or coating, to prevent wear and corrosion. Anodizing involves forming a protective oxide layer on the surface of the piston, while coating involves coating a material, such as ceramic or polymer, on the surface of the piston.
5. Assembly: Finally, the piston is assembled into a complete engine assembly with other components, such as piston rings and connecting rods.
The installation process must properly assemble the piston and other components together to ensure the normal operation and performance of the engine.
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