呼吸人孔（HXF-HR型）                      防爆阻火呼吸人孔（HXF-HRZ型）

Breathing Manhole                                          Breathing Manhole with Flame Arresting

   
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呼吸人孔、阻火呼吸人孔是安裝在儲罐頂上的安全應(yīng)急通氣裝置，通常與阻火呼吸閥配套使用，既然避免因意外原因造成罐內(nèi)急劇超壓或真空時，損壞儲罐而發(fā)生事故，又能起到安全防火作用，是保護儲罐的安全裝置，特別適用于貯存物料以氮氣封頂?shù)墓绊敵�壓罐。具有定壓排放、定壓吸入、開閉靈活、安全阻火、結(jié)構(gòu)緊湊、密封性能好、安全可靠等優(yōu)點。

Breathing Man hole and Breathing Manhole With Flame Arresting is a kind of emergent venting device for safety , which shall be installed on the top of the tank roof. It is usually used together with breather valve and flame arrester. It can not only avoid sudden extra-pressure or vacuum in tank causting storage tank, especially used for normal-pressuredome roof tanks with nitrogen-covered storage fuel. The products have advantages in exhaling and inhaling under fixed pressure, opening and closinged by accidents but also arrest the flame safely. At present it has been applied very well in protecfreely, safe arresting flame, compact structure, well-performed sealing and safety reliability etc.

設(shè)備材質(zhì)  Materials of construction：                                               

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：

A、-295Pa (-30mmH₂O)   +355Pa (+36mmH₂O )

B、-295Pa (-30mmH₂O)   +980Pa (+100mmH₂O )

C、-295Pa (-30mmH₂O)   +1750Pa (+180mmH₂O )

D、-295Pa (-30mmH₂O)   +9800Pa (+10000mmH₂O )

防爆級別：BS5501：IIA、IIB、IIC。

訂貨須知：

1、所需產(chǎn)品的型號；

2、儲罐內(nèi)儲存的介質(zhì)；

3、產(chǎn)品材質(zhì)、口徑大小和連接方式；

4、工作溫度和操作壓力；