Cavitation and noise are two of the most common hazards of regulating valves in controlling high differential pressure fluids. Regulating valve noise is the main source of pollution in the petrochemical industry. In addition to the use of low-noise structure in the selection of the control valve, the valve operating conditions change is to eliminate or reduce cavitation and noise, the fundamental method. Regulating valve in the work, should pay attention to its noise situation, analyze the production mechanism of noise can better monitor the working status of the control valve and effectively deal with the problems that occur. (1) Mechanical vibration - When the spool moves horizontally in the sleeve, the clearance between the spool and the sleeve can be minimized or the sleeve with hard surface can be used. (2) Natural Frequency Vibrations - such as spools or other components all have an inherent vibrational frequency for which the characteristics of the spool can be changed by special casting or forging treatment, and other types can be changed if necessary The spool. (3) Spool instability - such as noise caused by pressure fluctuations of the fluid due to oscillating displacement of the spool, is usually caused by damping factors such as the actuator of the regulating circuit, for which the damping can be readjusted Coefficient or in the spool displacement direction plus damping facilities. (4) Mechanical fluidity of media - The media also emits noise when it flows in pipes or regulating valves. This is not explained in detail here (cavitation can also cause noise). Search Keyword: More Valve Technical Articles Mechanical Valves Product Information
Knitted Cloak
Knitted Cloak
This knitted cape shawl not only keeps warm, but also has a more atmospheric style. The lower body is very thin whether it is matched with jeans or pencil pants. The overall version is a loose design, the shoulder design fits the shoulder line, the looseness of the sleeve can well cover the flesh of the arm, and the line proportion of the elongated arm makes the arm more slender. Its style is simple and atmospheric, in line with modern aesthetics. We can customize knitted cloaks of various colors and styles for you, and sell them in bulk.
Yacheng Knitting Co., Ltd. can mass produce customized high-quality knitted garments, including sweaters, Custom Knit Sweaters, Knitted Pants, Knitted Skirt , Knitted Shoes, Knitted Scarves and Knitting Blanket. If you need to order knitted products, please contact us.
Sweater Cloak,Knitted Cloak,Knit Sweater Cloak,Long Knitted Cloak
DongGuan Yacheng Knitting Co., Ltd , https://www.dgoemknittingyc.com