Iveco cars equipped with vacuum booster, which allows the car even at low speeds, light brake pedal, it will have a higher braking effect, which will lead to the front brake system is too sensitive, easy to lock Slip, reduce driving stability.
To avoid these drawbacks, a hysteresis valve was installed in the front brake circuit of the car. Only when the pressure reaches 0.14MPa, this valve allows the brake fluid to pass, this pressure just can make the brake shoe begin to open.
The brake master cylinder pressure reaches 1.26MPa before the pressure remains unchanged, the pressure exceeds this value, the hysteresis valve opens, the brake fluid normally sparse to the front brake circuit, if the brake pedal has stepped on at this time, It can reach the maximum allowable braking system pressure, to achieve the role of braking.
Flanges are a method of connecting pipes, valves, pumps, and other equipment to form a piping system, usually by welding or threading. It is also easy to clean, inspect or modify. Flanges are usually welded or tightened. Flange joints are made by bolting two flanges together and using washers between them to provide a seal.
Pipe assemblies may be bolted together between flanges. Flanges are used to connect pipes to each other, to valves, to fittings, and to special items such as filters and pressure vessels. Cover plates can be connected to create "blind flanges". Flanges are bolted together, and sealing is usually done using washers or other methods. Industries dealing with flammable, volatile, toxic or corrosive substances require special protection at flange joints. Flange shields can provide an additional level of protection to ensure safety.
There are many different flange standards worldwide. For simple functionality and interchangeability, these designs have standardized dimensions. Common world standards include ASA/ASME (USA), PN/DIN (Europe), BS10 (UK/Australia) and JIS/KS (Japan/Korea).
In most cases, standards are interchangeable, as most local standards have been aligned with ISO standards.
Flanges are also made in standardized sizes, usually in "flat", "convex", "mortise" or "ring joint" styles, but other ambiguous styles may be available.
Flange designs include "weld neck", "socket", "lap", "socket weld", "thread" and "blind flange".
Welding Neck,Neck Flange,Weld Neck Flange,Long Welding Neck Flange
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