1. for rated steam pressure is less than 2.5MPa boilers, pressure gauges should not be less than 2.5 accuracy; for rated steam pressure is greater than or equal to 2.5MPa boilers, pressure gauges should not be less than 1.5 accuracy.
1.針對于
1噸管道煤氣供熱鍋爐額定飽和水蒸汽工作經濟各種工作壓力不不小于2.5MPa的水蒸汽工業鍋爐燃燒，工作經濟壓差表精準度高度應為當高出2.5級;而對于額定飽和水蒸汽工作經濟各種工作壓力不小于或等同于2.5MPa的水蒸汽工業鍋爐燃燒，工作經濟壓差表的精準度高度應為當高出1.5級。
2. the pressure gauge should be selected according to the working pressure. Pressure gauge dial scale limit should be 1.5 to 3 times the work pressure, preferably 2 times.
2.壓強表應基于的工做壓強選擇。壓強表表針標尺刻度限制值應當為的工做壓強的1.5 ～3.0倍，最佳選擇2倍。
3. pressure gauge size should ensure the fireman can clearly see that the pressure index value, dial diameter should not be less than 100mm.
3.壓差表表圈大小不一應絕對司爐師能很清楚地看清壓差統計指標值，表圈直徑約本就不是需小于100mm。
A pressure meter is a gauge for measuring the magnitude of pressure. It can be used to measure the actual pressure value in a boiler. The change of the indicator of a pressure indicator can reflect the change of combustion and load. The fireman according to the instructions of the pressure gauge to adjust the combustion, so as to adapt to the change of external load, the boiler pressure control in the allowed range, to achieve the purpose of safe operation. Therefore, the essential safety accessories of pressure gauge is the boiler, the boiler operators will be likened to "eye pressure gauge".
各種真空承載率表是一個種測定方法各種承載率尺寸大小的儀盤表，能作來測定方法電爐內具體的各種承載率值，各種真空承載率表表針的變幻能否體現自燃及承載率的變幻。司爐人士按照其各種真空承載率表的指示燈數來調整自燃，使之自我調節外物承載率的變幻，將電爐各種承載率掌控在不能的面積內，提高應急性電腦運行的必要性。由此，各種真空承載率表也是電爐上必須缺乏的應急性附加，司爐人士將各種真空承載率表比方成“眼神”。
The pressure meter used on the boiler should be selected according to the working pressure. The maximum value of the dial scale of the steam boiler should be 1.5~3.0 times of the working pressure, and the best choice is 2 times. Pressure gauge the size of vertical and horizontal steam boiler should ensure the fireman can see clearly the pressure indicator, dial diameter should not be less than 100mm, the general height of 2 meters with the boiler pressure gauge diameter should not be less than 200mm. The steam boiler and the pressure gauge should be calibrated once every six months, to draw a red line in the working pressure and lead seal.
用在電廠工業加熱爐采用的負壓表應利用事情負壓配用，飽和蒸氣式電廠工業加熱爐的負壓表表針精確度最高值應當為事情負壓的1.5~3.0倍，較好配用2倍。立臥式飽和蒸氣式電廠工業加熱爐的負壓表表針長寬比應確保司爐工能清地看過負壓告訴值，表針截面積不宜值為等于100mm，一般的高寬比達2m的電廠工業加熱爐配用負壓表截面積應不值為等于200mm。飽和蒸氣式電廠工業加熱爐和負壓表應每兩年檢定兩次，在事情負壓處劃紅條并加鉛封。
The spring tube is made of a metal tube, the cross section of the pipe is flat and round, one end of the tube is fixed on the supporting seat and communicated with the pipe joint; the other end is a closed free end and is connected with the connecting rod. The other end of the connecting rod is connected with a sector gear, and the sector gear is connected with the pinion on the central shaft. The indicator of the pressure gauge is fixed on the central shaft.
彈黃管由五金管控成，管接橫截面呈偏平圓圈，它的一面規定在作為支撐點坐上，并與管金屬接頭互通;另個面是密封的自在端，與連桿圖片鏈接。連桿的另個面連結扇形蝸輪蝸桿，扇形蝸輪蝸桿又與咨詢中央軸上的小蝸輪蝸桿相協調。負荷表的結構體指針，規定在咨詢中央軸上。
