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.面對
1噸管道煤氣電廠鍋爐特殊液體阻力不降至2.5MPa的電爐，阻力表小于度還應低過2.5級;對于那些特殊液體阻力不降至或等同于2.5MPa的電爐，阻力表的小于度還應低過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.壓差表應依照事情壓差采用。壓差表儀表盤讀數級限值應以事情壓差的1.5 ～3.0倍，更好采用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.心理水表表殼程度應衡量司爐員工能了解地看出心理壓力值指標體系值，表殼直勁不得高于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".
水壓表也是種檢測水壓各個的儀容儀表，可來檢測煤氣燃氣加熱爐內事實的水壓值，水壓表表針的變遷行體現了燒及功率因數補償的變遷。司爐人群管理會根據水壓表的告訴數來調接燒，使之適宜受到功率因數補償的變遷，將煤氣燃氣加熱爐水壓有效控制在限制的的范圍內，做到平安執行的為的。那么，水壓表也是煤氣燃氣加熱爐上不能少于的平安附注，司爐人群管理將水壓表比作成“眼皮”。
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.
用在工業蒸氣電爐上配的壓差表應據操作的壓差配用，水汽工業蒸氣電爐的壓差表儀表殼刻度尺較大值不得超過操作的壓差的1.5~3.0倍，最容易配用2倍。立離心式水汽工業蒸氣電爐的壓差表儀表殼面積應有保障司爐工能清除地知道壓差指示燈值，儀表殼網套直徑不低于切勿高于100mm，般高強度達兩米的工業蒸氣電爐配用壓差表網套直徑不低于應不高于200mm。水汽工業蒸氣電爐和壓差表應每幾年檢驗多次，在操作的壓差處劃紅條并加鉛封。
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.
彈黃管由合金金屬管理成，管接截面積呈扁型扇形，它的另外一只個端固定不動不變在支撐點坐上，并與管接線頭連通;另另外一只個端是封密的放任端，與連桿圖片鏈接。連桿的另另外一只個端對接扇形傘齒傳動，扇形傘齒傳動又與服務中心的軸上的小傘齒傳動相接合。負荷表的表針，固定不動不變在服務中心的軸上。
