HISTORY ABOUT THE TL PLUS

CONSTRUCTION HOW TO CHOOSE PRESSURE METERS IN INDUSTRIAL

1. Structure and operating principle of pressure gauge 1.1 Structure   Outer rim: articulated to the case (10), holds the glass back (2) and the bezel (3). Glass: made from safety glass and transparent to make it easy to see the displayed watch indicator. Glass sealing ring: leak-proof, airtight, holds tight between glass (2) and case (10). Clock hands: thanks to the action of the movement (8) shows the correct pressure on the scale displayed on the dial (5). Digital display: contains scale, measuring lines and pressure units. Seal: used to pour oil into the watch to help lubricate, anti-vibration, anti-freeze, ... In addition, before putting the watch into use, it is necessary to cut off the upper part of the stopper so as not to seal the space inside the copper. lake, which equalizes the pressure inside the watch. Bourdon tube: expands by pressure and acts on the transducer (8). Let the fluid to be measured in The movement: consists of many parts assembled with the function of converting the elastic state of the bourdon tube (7) into the rotation of the clock hand (4). And "signaling" the clock hands to work Connection: threaded to connect to the pipe, draining the fluid from the pipe into the bourdon tube (7). Case: Is the outer part of the watch, designed with heat-resistant materials to prevent rust. Screws: used to mount and fix the display face. 1.2 Working principle   The fluid enters the meter through the connector (socket). The fluid continues to travel to tube C (bourdon tube) and expands the tube depending on whether the pressure is high or low. When the C-tube (bourdon tube) expands, it will act on the movement (Moverment), the moving part acts directly on the copper needle (Pointer). When the clock hand (Pointer) points to any line or number, with the unit on the dial (Dial), we can know the pressure level in the pipeline at the position of the clock. The accuracy of the clock is often not calibrated by the user's factory, each meter is calibrated by the manufacturer according to a certain range of measurements. But some new watch models now have the ability to calibrate. adjusted for users due to increased errors during use or corroded components. It is a summary of the process of converting the pressure in the pipeline into the measured value on the pressure gauge. 2. How to choose a pressure gauge 2.1 Selection by specifications Basic parameters for pressure gauge selection:   Pressure measuring range: a suitable pressure measurement range helps the meter to operate stably and ensures the life of the meter. So choose a gauge with a range in which the actual pressure reading where you want to install it is 30% to 70% of the gauge's range pressure. For example, the pipeline where you want to install a pressure gauge has a pressure value ranging from 4 to 6 bar, you should choose a gauge with a pressure range of 0 to 10 bar.    Measuring unit of the meter: choosing the meter unit is also an important step because if you choose the right unit you need to calculate and record during operation, it will help you avoid converting working units. increase the error as well as the risk of miscalculation.   Accuracy: the smaller the better, usually from ±1% to ±1.6%.   Connection type: need to determine the correct connection, thread type where you are going to install the meter to avoid losing time.   Overvoltage level: choosing the right overvoltage level saves money, protects the meter as well as ensures safety when working.  2.2 Selection by working environment Working environment greatly affects equipment:   Choose the right watch that is resistant to temperatures as well as sturdy enough to protect components if an accident occurs during work.   Choose a meter with vibration resistance or add oil if the piping system where the meter is installed has a lot of vibration during work.   Choose a meter with a suitable connection position for the meter to work most efficiently and easy to read parameters for the user.   It is also possible to choose a meter with the ability to add oil in case the meter operates at low temperatures, the oil helps to prevent freezing, if in a pipeline environment with high pressure fluctuations, the oil also helps lubricate the components. details like a movement.     Selecting the right pressure gauge will help increase the life of the meter as well as bring economic and productivity benefits to you. 3. Application     In the boiler industry, thermal oil furnace, energy     Production line system     Petroleum and gas processing, production and transmission systems     Water supply and drainage, fire protection, HVAC 

COMPARISON OF BRONZE PRESSURE METERS AND INOX PRESSURE METERS

Details such as safety glass, digital display, Clock hands and screws fixing the dial, watch case in both pressure gauges are the same in materials.

CALCULATION OF RADIANT HEAT OUT OF THE PIPE CITY

SATURATED STEAM TABLE

DIN FLANGES

DIN 2543 Flat Flange For Welding (Slip On) PN16 DN ISO DIN d4 D t Kψ No. of Holes d2 KG 10 17.2 14 40 90 - 60 4 14 0.63 15 21.3 20 45 95 14 65 4 14 0.72 20 26.9 25 58 105 16 75 4 14 1.01 25 33.7 30 68 115 16 85 4 14 1.23 32 42.4 38 78 140 16 100 4 18 1.8 40 48.3 44.5 88 150 16 110 4 18 2.09 50 60.3 57 102 165 18 125 4 18 2.88 65 76.1 - 122 185 18 145 4 18 3.66 80 88.9 - 138 200 20 160 8 18 4.77 100 114.3 108 158 220 20 180 8 18 5.65 125 139.7 133 188 250 22 210 8 18 8.42 150 168.3 159 212 285 22 240 8 23 10.4 200 219.1 216 268 340 24 295 12 23 16.1 250 273 267 320 405 26 355 12 27 24.9 300 323.9 318 378 460 28 410 12 27 35.1 350 355.6 368 438 520 30 470 16 27 47.8 400 406.4 419 490 580 32 525 16 30 63.5 500 508 521 610 715 36 650 20 33 102

THERMODYNAMIC STEAM TRAP - HOW IT WORKS

  Thermodynamic Steam Trap Thermodynamic traps have only one moving part, the valve disc, which allows condensate to be discharged when present and closes tightly upon the arrival of steam. These traps have an inherently rugged design and are commonly used as drip traps on steam mains and supply lines. Their solid construction and single moving part make them resistant to waterhammer and are freeze-proof when installed vertically. Thermodynamic traps will only discharge small amounts of air and therefore are typically not used in process applications Valve Disc Open When condensate is present, trap remains in the open position allowing condensate to discharge. Steam pressure pushes the condensate thru the trap. Valve Disc Starting to Close When steam enters the trap, it creates an internal pressure above the disc that instantly forces the disc and seat to close tightly, preventing steam from escaping.  Valve Disc Closed Steam pressure above the disc holds the disc closed, trapping steam in the system. Trap will remain closed until the steam above the disc condenses, due to heat loss through the cap.