泄壓人孔是迅速泄壓設備，其技能功能、首要零部件資料與呼吸人孔一樣。 
The pressure relief manhole is a rapid pressure relief equipment, and its skills, functions and primary *ponents are the same as those of the breathing manholes.

泄壓人孔是是裝置在石油化工等設備和儲罐上的安全應急通風設備，一般與罐頂上裝置的呼吸閥配套運用，堅持罐內的正常壓力，既能防止因意外因素形成罐內急劇超壓或真空時，損壞儲罐而發作的事端；
The pressure relief manhole is safety emergency ventilation equipment device in petrochemical equipment and storage tanks, and the top of the tank for the breathing valve supporting the use of, adhere to the normal pressure tank, which can prevent the formation of accidental factors of tank sharp overpressure or vacuum, damaged tanks and attack incidents;

泄壓人孔具有定壓排放、定壓吸入、式閉靈敏、構造緊湊、密封功能好、安全可靠等長處。
The pressure relief manhole has many advantages, such as constant pressure discharge, constant pressure suction, closed type sensitivity, *pact structure, good sealing function, safety and reliability.

參數特性：

Parameter characteristics:

殼體資料：碳鋼、不銹鋼；
Shell material: carbon steel, stainless steel;

密封件資料：耐油石棉、聚四氟乙烯；

Sealing material: oil resistant asbestos, ptfe;

環境溫度：-30C——+60C；

Ambient temperature: -30C - +60C；

操作壓力：-392pa~ +1961Pa(-40mmH2O~+200mmH2O)；

Operating pressure: -392pa~ +1961Pa (-40mmH2O~+200mmH2O);

泄壓人孔“材質” Pressure relief manhole "material"：

備注：連接標準：HG 、GB、 ANSI、 JIS、 DIN等等.

Standard Connection：HG、GB、ANSI、JIS、DIN、ect.

操作壓力：+1961pa （+200mmH2O）

Operating Pressure：+1961pa （+200mmH2O）

泄壓人孔“尺寸表” Dimension table for pressure relief manhole"：

泄壓人孔“訂購須知” "Pressure relief manholes" order notes"：

1、訂貨時請注明產品尺寸、操作壓力及材質。

Please give clear indication of Dimension，operating pressure and material.

2、當需要其他標準法蘭、材質或操作壓力時請在訂貨時注明。

Please give clear indication of flange,material and operating pressure if you need other standard.