Use, first of all, pay attention to the selection. Improper selection will cause water and air leakage. When using the hydraulic control valve, the displacement of the hydraulic control valve must be selected according to the hourly steam consumption of the equipment multiplied by the selection ratio of 2-3 times the maximum condensed water.
Use, first of all, pay attention to the selection. Improper selection will cause water and air leakage. When using the hydraulic control valve, the displacement of the hydraulic control valve must be selected according to the hourly steam consumption of the equipment multiplied by the selection ratio of 2-3 times the maximum condensed water. In order to ensure that the hydraulic control valve can discharge condensate as soon as possible while driving, the temperature of the heating device can be quickly increased. The hydraulic control valve does not have enough energy to discharge, which will cause the condensed water to be discharged in time and reduce the thermal efficiency of the heating equipment.
When the hydraulic control valve is selected, the hydraulic control valve cannot be selected with the nominal pressure, because the nominal pressure can only indicate that the hydraulic control valve body is subjected to the pressure level, and the hydraulic control valve has a large difference between the nominal pressure and the working pressure. Therefore, the displacement of the hydraulic control valve should be selected according to the working pressure difference. The working pressure difference is the difference between the working pressure before the hydraulic control valve and the back pressure of the hydraulic control valve outlet. The choice of hydraulic control valve requires accurate and unobstructed steam-blocking drainage, high sensitivity, improved steam utilization, no leakage of steam, reliable working performance, high back pressure rate, long service life and convenient maintenance are the preferred conditions.
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Thrust Spherical Roller Bearing
A spherical roller thrust bearing is a rolling-element bearing of thrust type that permits rotation with low friction, and permits angular misalignment. The bearing is designed to take radial loads, and heavy axial loads in one direction.
Spherical roller thrust bearings are of separable construction, The shaft washer is assembled with the cage and a number of asymmetrical spherical rollers and has to be used along with a housing washer having sphered raceway. During mounting, the rings are to be fixed on to their respective seats – shaft washer on the shaft and housing washer on to the housing and then they have to be put together carefully They are manufactured in multiple series.
The raceway of the housing washer is at an angle with it`s ais of rotation, so as to be able to allow the rollers to remain in touch with it. As a result, a spherical roller thrust bearing is capable of carrying both a radial as well as an axial load. Spherical roller thrust bearings – because of their internal geometry – are capable of accommodating certain amount of misalignment. However, they can take axial loads only from one direction, and may need to be used in pairs in Back-to-Back or Face-to-Face arrangement, if thrust load from both the directions are to be carried.
Spherical roller thrust bearings are capable of compensating misalignment and shaft deflection.
The bearings are manufactured in normal accuracy. However, bearings with higher running accuracy can also be supplied.
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Shijiazhuang Longshu Mechanical & Electrical Equipment Trading Co., Ltd. , https://www.longsbearings.com