Pressure-controller and temperature controllers address extended choices as a dependable arrangement. Steam, fluids and gases stream at high tensions to their greatest level. At these places, a strain controller as well as temperature controllers brings down the tension for security and productivity, and to match the necessities of the application. There are three sorts of strain lessening valves.
Direct-acting. The easiest of strain controller as well as temperature controllers, the immediate acting sort, works with either a level stomach or tangled roars. Since it is independent, it needn’t bother with an outer detecting line downstream to work. It is the van giảm áp littlest and generally practical of the three sorts and is intended for low to direct streams. Exactness of direct-acting tension controller and temperature controllers is commonly +/ – 10% of the downstream set point.
Inside steered cylinder worked. This kind of strain controller and temperature controllers consolidates two valves-a pilot and principal valve-in one unit. The pilot valve has a plan like that of the immediate acting valve. The release from the pilot valve follows up on top of a cylinder, which opens the principal valve. This plan utilizes channel strain in opening an enormous principal valve than could somehow be opened straightforwardly. Thus, there is more noteworthy limit per line size and more prominent precision (+/ – 5%) than with the immediate acting valve. Likewise with direct-acting valves, the strain is detected inside, taking out the requirement for an outer detecting line.
Remotely steered. In this kind, twofold stomachs supplant the cylinder administrator of the inside steered plan. This expanded stomach region can open an enormous principal valve, permitting a more prominent limit for every line size than the inside guided valve. Likewise, the stomachs are more delicate to pressure changes, and that implies precision of +/ – 1%. This more prominent exactness is because of the area, outside to the valve, of the detecting line, where there is less disturbance. This valve additionally offers the adaptability to utilize various sorts of pilot valves (i.e., pressure, temperature, air-stacked, solenoid or blends).
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