◎压力排放吸入阀（GYXB型）、压力排放阀（GTXC型）泄压人孔、紧急泄压人孔

GYXB Type Pressure discharge suction valve,

GTXC Type A Pressu relief valve

◎产品慨述 Product outlined the

GYXB型压力排放吸入阀、GYXC型压力排放阀分别安装在石油、化工等物料罐顶上的安全应急通风装置。通常与呼吸阀配套使用，是为了避免因意外原因造成罐内急剧超压或真空时，起到压力泄放或气体吸入的作用。

GYXB type suction valve,pressure emissions GYXC type pressure discharge valve installed in respectively oil and chemical material material storage tanks at the top of the safety emergency ventilation device.Usually the respiration valve and supporting the use of in order to avoid accident reason is caused by a sharp overpressure or tank vacuum,a pressure bleeder or gas in haled role.

The product is the all-weather sealing structure,to adjust the counterweight to in haled disc and discharge gland open/close,with the constant pressure emissions the constant pressure inhaled,open and flexible,safety and reliability.

◎技术性能 technical characteristic

1、操作压力：正压：+1961Pa（+200mmH2O），负压：-392Pa（-40 mmH2O）

或正、负压都可由客户指定。

2、使用温度：-30oC~+60oC

◎产品结构 product mix

◎压力排放吸入阀（又名呼吸人孔） （GYXB型）

GYXB Type Pressure emissions suction valve（breathing into the hole）

企业业绩：

连云港中彩科技有限公司 6000吨/年电路级多晶硅项目

特变电工股份有限公司能源动力分公司

河南省煤化（集团）义乌气化厂2×1万立方米甲醇罐区改造扩建项目

兖矿鲁南化肥厂40kt/a聚甲醛项目

中化泉州1200万吨/年炼油项目、230万吨/年轻回收装置

山东怡力75t/h燃油锅炉燃油系统

陕西天鸿硅材料有限责任公司 3750吨/年多晶硅

陕西威斯特硅业有限公司建设年产1500吨/多晶硅项目

陕西榆林木醇厂年产80万吨甲醇项目

中化天津港石化仓储有限公司 95万立方米仓储项目二期工程项目

◎工作原理 Working Principle

在呼吸阀正常工作的情况下，GYXB型压力排放吸入阀、GYXC型压力排放阀基本保持密封状态，储罐处于正常压力。当呼吸阀正常工作满足不了因意外原因造成储罐压力急剧超压时，GYXB型压力排放吸入阀或GYXC型压力排放阀的泄压盖自动顶开，进行紧急泄压，使罐内压力保持正常；当罐内压力急剧减压或超真空时，吸入阀便开启急剧吸入大气、维护罐内正常压力，以保护储罐安全。所不同的是GYXB型即可吸入、又可排放；而GYXC型只能排放，不能吸入，请用户在选型时予以区别。

In the respiration valve normal wock,situation,GYXB type suction valve,pressure emissions GYXC type pressure discharge valve seal basic keep state,a tank under normal pressure.When the breathing valve normal work can't satisfy the because accident caused a sharp pressure tank pressure,GYXB type pressure emissions suction valve or GYXC type pressure pressure relief valve discharge cover to be automatic top open,make emergency relief pressure,make container maintain normal pressure;when pressure tank or the vacuum pressure sharply,the suction valve and opened sharply inhaled air,maintain normal pressure tank,in order to protect the safety storage tanks,what is different GYXB As can be inhaled,type and discharge;And GYXC type can only emissions,can't breathe,please users in the model selection to be different.