The pressure reducing valve is a valve that adjusts the inlet pressure to a certain required outlet pressure and relies on the energy of the medium itself to automatically maintain the outlet pressure. From the point of view of fluid mechanics, the pressure reducing valve is a throttling element whose local resistance can be changed, that is, by changing the throttling area, the flow velocity and the kinetic energy of the fluid are changed, resulting in different pressure loss, thereby achieving the purpose of decompression. Then, relying on the adjustment of the control and regulation system, the fluctuation of the post-valve pressure is balanced with the spring force, so that the post-valve pressure remains constant within a certain error range. Italy OR imported pressure reducing valve solves the problem that the domestic pressure reducing valve only reduces the static pressure without reducing the static pressure with its exquisite craftsmanship. working principle: When someone uses water after the inlet pressure reducing valve, water will generate pressure loss through the valve core. The pressure loss is determined by the size of the spool opening, and the size of the spool opening is determined by the spring force, so it is controlled by adjusting the top spring of the inlet pressure reducing valve. The spool is opened to control the pressure loss to achieve the required post-valve pressure. When no water is used after the inlet pressure reducing valve, the pressure behind the valve increases. At this time, the pressure behind the valve is higher than the spring force, and the valve core is lifted upward (the pressure reducing valve is in a normally open state). At this time, the pre-valve fluid and the post-valve fluid are completely separated. At this time, the pressure at the outlet of the pressure reducing valve is greater than the set value, but due to the inertia, the diaphragm moving upward does not stop at once and will continue to move upward. At one point, the valve chamber at the outlet becomes larger, the volume becomes larger, and the pressure of the internal liquid drops until it is exactly equal to the set pressure value at the outlet of the pressure reducing valve. Therefore, the inlet pressure reducing valve can not only reduce the pressure but also reduce the static pressure, and the outlet pressure fluctuation is small.
The retaining ring, also known as the clip spring, is divided into the hole with the retaining ring and the shaft with the retaining ring, from the role of axial limit, can prevent other parts from axial movement. The forming technology mostly uses the sheet metal punching, the function section presents the taper, after the assembly is mostly [The linear contact"part big size model uses the wire material winding forming, punching cuts the surplus material the craft to make, the section presents the regular rectangle, after the assembly is [The surface contact".
Circlip for Shaft/hole circlip for holes circlip for Shaft/hole circlip for Holes Applied Science Mechanical Engineering Machinery Parts Definition of ring-shaped machine parts which are fixed on shaft/hole
A separable substantially flat washer with an inner or outer portion used as an outer ring or inner ring rib for radial cylindrical roller bearings. BEVELLED RING: A separable ring with an [L"shaped section, the outer part of which acts as an inner rib of a radial roller ball bearing. Middle Ring: A separable ring in two-or more-row roller bearings, used to separate and guide the rollers in each row. The RIB is a narrow shoulder that is parallel to the rolling direction and protrudes from the raceway surface to support and guide the roller and keep it in the bearing. The types of retaining rings are: Taper Pin Locking Ring, screw locking ring, screw locking ring with locking ring, wire retaining ring, hole elastic retaining ring-a type, hole elastic retaining ring-b type, shaft elastic retaining ring-a type, shaft elastic retaining ring-b type, screw tightening shaft end retaining ring, Bolt tightening shaft end retaining ring, hole with Steel Wire retaining ring, shaft with steel wire retaining ring, etc. . Application Discipline Mechanical Engineering (First-level Discipline) ; Mechanical Parts (second-level discipline) ; fasteners (third-level discipline) use the fixed shaft parts are divided into axial fixed and circumferential fixed. Axial fixation methods are: Shaft Shoulder or shaft ring fixed, with the shaft end ring or cone surface fixed, fixed with the shaft sleeve, fixed with a round nut, fixed with elastic retaining ring. The retaining ring mainly plays the role of axial fixation, in which the cone plus retaining ring fixation has a higher degree of centering. The retaining ring of the rolling bearing is equivalent to a movable retaining edge, which is used to block the rollers for easy installation. The structure of the retaining ring comprises a flat retaining ring, an oblique retaining ring and a middle retaining ring.
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