不锈钢材质304/316L不锈钢人孔

人孔已有成型产品，直径通常为600mm。人孔中心距地板一般为750mm。便于工作人员在安装、清洗、维护时进出油罐或通风。

非金属油罐的人孔设在罐顶上，金属油罐的人孔设在罐壁最下圈板上。大都为直径600mm的圆孔，其中心距底板750mm，为油罐清洗或维修人员进出油罐用，又称作道门。检修清理油罐时刻利用人孔进行采光和通风。立式油罐的容量在5000m3以下时设1~2个人孔，5000m3以上的设2个人孔。人孔的安装应与进出油管线相隔不大于90°。当只设一个人孔时，应将其置于罐顶透光孔的对面；当设2个人孔时，其中一个设在透光孔的对面，另一个应至少与第一个人孔相隔90°。不锈钢人孔

人孔应有一个设在进出油管右侧附近，并尽量使人孔正对罐室密闭门，以便人员进出、维修油罐和通风接管用。

由于人孔安装在油罐的最下层体圈上，防渗漏就显得特别重要。要求两法兰结合面必须保证其平直度，无飘扭现象。加强板和法兰应尽量在整块钢板上切割而不拼接。法兰和盖板上加工有密封圈，在施工中要特别注意保护。密封用3mm厚石棉橡胶垫片，不允许有折裂。安装人孔盖板上紧螺栓时，要成对角均匀用力，以防孔盖变形。

Stainless steel 304/316L stainless steel manhole manhole has been formed products, the diameter is usually 600mm. Manhole Center from the floor is generally 750 mm. Facilitate the staff in the installation, cleaning, maintenance of access to oil tanks or ventilation. The manhole of the non-metal oil tank is arranged on the top of the tank, and the manhole of the metal oil tank is arranged on the lowest ring plate of the tank wall. Most of them are round holes with a diameter of 600mm, the center of which is 750mm away from the bottom plate. Maintenance and cleaning of oil tanks always use manhole for lighting and ventilation. When the capacity of vertical oil tank is below 5000m3, there are 1 ~ 2 manholes, and above 5000m3, there are 2 manholes. The manhole shall be installed not more than 90 ° apart from the inlet and outlet pipelines. When only one manhole is provided, it shall be placed opposite the light hole on the tank top; when two manholes are provided, one of them shall be located opposite the light hole and the other shall be at least 90 ° apart from the first manhole. The stainless steel manhole shall be provided with a manhole located near the right side of the inlet and outlet tubing, and shall be as close as possible to the airtight door of the tank chamber for Personnel Access, maintenance of the tank and ventilation connections. As the manhole installed in the tank on the lowest layer of the body ring, anti-leakage is particularly important. It is required that the joint surface of the two flanges should be straight and free from torsion. Stiffeners and flanges shall be cut as far as possible on the entire steel plate without splicing. The flange and the cover plate processing has the sealing ring, must pay special attention to the protection in the construction. 3 mm thick asbestos rubber gasket for sealing, no cracking is allowed. When installing the bolt on the manhole cover plate, apply equal force in diagonal to prevent the manhole cover from deformation.

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安徽利勒洁净设备科技有限公司是国内专业生产制造洁净卫生级阀门管件，主要应用于食品机械行业、制药机械行业、乳制品行业、酿酒饮料行业以及精细化工等行业高精度卫生级流体设备的专业生产厂家，产品规格齐全；产品主要有：制药用米勒卫生级不锈钢人孔生产厂家，无菌隔膜阀，卡箍直通隔膜阀，三通隔膜阀，法兰隔膜阀，气动隔膜阀，U型隔膜阀，罐底隔膜阀 ；无菌球阀，卡箍直通球阀，螺纹球阀，焊接球阀，气动球阀，法兰球阀，电动球阀；卫生级蝶阀，焊接蝶阀，卡箍直通蝶阀，螺纹蝶阀，法兰蝶阀，气动蝶阀，电动蝶阀；不锈钢卫生泵，不锈钢卫生级离心泵，不锈钢卫生自吸泵，不锈钢酒精防爆泵，卫生奶泵，卫生饮料泵；止回阀，过滤器、呼吸器、换向阀、防混阀、安全阀；卫生级不锈钢管件，焊接弯头，快装弯头，不锈钢三通，快装三通，四通，真空弯头，大小头；罐顶组件系列，不锈钢储罐，发酵罐，不锈钢卫生级人孔，清洗球/器，视镜灯，排气阀等其它非标产品生产加工；我们竭诚为您服务.