Valve Detector for Valve Leakage and Hydraulic System Leakage Fault Finding Accurately detect internal blockage or leakage of the valve while the system is online. Use an ultrasonic valve tester to check for hydraulic circuit failure to find internal leaks quickly and easily. Ultrasonic Valve Detector "Touch Mode" to collect sample readings along the loop. Detectors can clearly define the direction of flow and, more importantly, the source of the fault, even in high-noise areas. Internal leaks through the seal on the hydraulic ram create tiny bubbles in the oil, which "burst" in turn as they pass from the pressure side to the non-pressure side. These small explosions produce ultrasonic energy that is easily detected by the ultrasonic valve detector. And by adjusting the detector frequency to eliminate interference with the ultrasonic valve. Typical examples of valve detector application example - "valve leakage, hydraulic system leak detection method" 1, the instrument on the valve upstream pipeline (as shown in Figure A ) Determination of system environmental ultrasound. 2. Use the up and down arrow buttons on the main unit of the ultrasonic detector to adjust the sensitivity of the instrument and ensure that the arrow pointer on the LCD screen is hidden to measure the background signal of the system while taking note of the dB reading on the display. 3, the instrument against the valve downstream pipeline (Figure B Department) to listen to the leak signal. If the dB reading on the display is less than or equal to the reading at point A, the valve is leaking; if the dB reading at point B is increased relative to point A, the valve leaks. 4. Finally, place the detector on the downstream line somewhere below point B and confirm the leak point. If the valve leaks, the dB reading at point C in the figure should be less than the reading at point B. If the dB reading at point C is greater than the reading at point B, the leak should be somewhere downstream of the line. 5, if the valve is closed, almost can not hear the sound. If the valve is open, you can hear continuous or intermittent flow of sound, which is the sound of medium flowing through the valve body. 6,
Water Treatment plant can refer to the ultrasonic detector digital readings after the valve overhaul calibration and setting work. Water treatment equipment gate valve readings generally lower than 5dBμV.
Formic Acid
Formic Acid, systematically named Acid Formic, is the simplest carboxylic Acid Product, and has the chemical formula H2CO2. It is an important intermediate in chemical synthesis and occurs naturally, most notably in some ants. The word "formic" comes from the Latin word for ant, formica, referring to its early isolation by the distillation of ant bodies. Esters, salts, and the anion derived from formic acid are called formates. Industrially, formic acid is produced from methanol.
Formic Acid 85 is a colorless liquid having a pungent, penetrating odor at room temperature, comparable to the related acetic acid. It is miscible with water Titanium Dioxide and most polar organic solvents, and is somewhat soluble in hydrocarbons. In hydrocarbons and in the vapor phase, it consists of hydrogen-bonded dimers rather than individual molecules.Owing to its tendency to hydrogen-bond, gaseous Formic Acid Liquid does not obey the ideal gas law.Solid Sodium Hexametaphosphate formic acid, which can exist in either of two polymorphs, consists of an effectively endless network of hydrogen-bonded formic acid molecules. Formic Acid 85% forms a high-boiling azeotrope with water (22.4%). Liquid formic acid tends to supercool.
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