泄壓人孔是迅速泄壓設(shè)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 components are the same as those of the breathing manholes.

泄壓人孔是是裝置在石油化工等設(shè)備和儲(chǔ)罐上的安全應(yīng)急通風(fēng)設(shè)備，一般與罐頂上裝置的呼吸閥配套運(yùn)用，堅(jiān)持罐內(nèi)的正常壓力，既能防止因意外因素形成罐內(nèi)急劇超壓或真空時(shí)，損壞儲(chǔ)罐而發(fā)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(gòu)造緊湊、密封功能好、安全可靠等長(zhǎng)處。
The pressure relief manhole has many advantages, such as constant pressure discharge, constant pressure suction, closed type sensitivity, compact structure, good sealing function, safety and reliability.

參數(shù)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***乙烯；

Sealing material: oil resistant asbestos, ptfe;

環(huán)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(zhì)” Pressure relief manhole "material"：

備注：連接標(biāo)準(zhǔn)：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(gòu)須知” "Pressure relief manholes" order notes"：

1、訂貨時(shí)請(qǐng)注明產(chǎn)品尺寸、操作壓力及材質(zhì)。

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

2、當(dāng)需要其他標(biāo)準(zhǔn)法蘭、材質(zhì)或操作壓力時(shí)請(qǐng)?jiān)谟嗀洉r(shí)注明。

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