Due to the small total amount of media to be controlled, small flow and minute flow rate adjustments have always been a challenge in industrial automation process control. Before we MFR patented small flow control is 100L / h, never done 10 L / h.
Small flow control valve is the rated flow in the 10L / h regulation. At that time, an old customer used the fuel control condition, which required a flow of 10 L / h. (That is, we usually mention the home oil 2 mention so much.) 5L).
Regulating valve is generally composed of straight stroke adjustment valve and angle stroke adjustment valve.
Straight stroke generally by the single-seat valve linear piston movement regulation for the technical features; angle stroke is made by the spool part of the 0-90 ° rotation action to control the flow size.
Two kinds of structure of the control valve has its own technical features and advantages;
Straight travel is less error repeatability, but due to travel restrictions, especially for small flow needle-shaped piston structure, the adjustable ratio will be very small, usually only 50: 1 control accuracy. (Equivalent to the whole trip in 50 steps to complete) And the angular travel rotary motion Although the repetitive error is greater than the angular travel, but the adjustable ratio can reach 200: 1 or more. Control accuracy is far greater than the straight stroke.
Industrial flow control of small new technology - Equator regulating valve
Therefore, by improving the structure of the valve seat of the angle-stroke regulating valve, the mechanical connection accuracy of the valve trim is improved. Can greatly improve the control valve repeatability error. Let the small flow control problems get breakthrough progress and solution.
Industrial flow control of small new technology - Equator regulating valve
GRAT patented through the MFR technology upgrades, groove processing in the core of the equator, repeated testing, testing. Flow control from the initial 36L / h, 25L / h, 17L / h finally successfully reached 10L / h. Effective solution to the control problem of small flow.
The minimum flow of control range from 0-100L / h narrowed to 0-10L / h, and through repeated testing, has now achieved a mature application. The utility model effectively solves the problems that the traditional regulating valve in the industrial process control can not realize the small flow regulation, the inaccurate adjustment of the minor flow, the poor linearity, the leakage after the shut-off, the bulky volume and the like. Create a new technology platform and more room for development.
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