本公司(sī)生産的(de)系列自(zì)力式氮(dan)封調節(jie)閥主要(yao)由控💋制(zhì)閥門、執(zhí)行 器、指(zhi)揮器、壓(ya)力彈簧(huang)等部件(jian)組成。主(zhu)要用于(yu)保持容(rong)器頂部(bù)👨‍❤️‍👨保護 氣(qi)體(一般(bān)為氮氣(qi))的壓力(lì)❄️恒定，以(yi)避免容(rong)✍️器内物(wù)料與空(kōng)氣直接(jiē)接 觸，防(fáng)止物料(liào)揮發、被(bèi)氧化，以(yǐ)及💚容器(qì)的安全(quán)。适用于(yu)各類大(dà)型🛀🏻 儲罐(guan)的氣封(feng)保護系(xì)統。 

Serial self-operated nitrogen seal regulating valve of the company is mainly composed of several parts including actuated valve， actuator， director and pressure spring.It is utilized to maintain constant pressure of protective gas(generally nitrogen) on the top of containers for avoiding direct contacts of containers and materials， preventing materials from vol at il izing and being oxidized and ensuring containers safeties.It applies to air seal protection systems of all kinds of large-scaled storage tank.