不锈钢常压360°旋转人孔
不锈钢常压人孔材质：SUS304、304L.316L。耐压范围：最高可承受0.4mpa工作压力
表面处理：表面镜面抛光（Ra≦0.8um）内部沙白处理，可内外镜面抛光。
特点：属于快开式压力人孔，产品设计美观，耐用。手轮可以做成不锈钢材质。
应用场合：食品,生物制药，化工,石油,电力,啤酒乳品等设备不可缺少的配件。
常用规格：Φ200mm---Φ600mm.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°.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。
The material of stainless steel pressure manhole: SUS304, 304L.316L.
Pressure range: the maximum can withstand the work pressure of 0.4MPa
Surface treatment: mirror polishing (Ra = 0.8um) internal Elizabeth, inside and outside mirror polished.
Features: quick open manhole belongs to pressure, product design is beautiful, durable. Hand wheel can be made of stainless steel.
Applications: food, bio pharmaceutical, chemical, petroleum, electric power, beer, dairy products and other equipment indispensable accessories.
Common specifications: diameter 200mm--- 600mm. diameter manhole has been molded products, the diameter is usually 600mm. Manhole center from the floor general for 750mm. The installation, cleaning and maintenance are convenient for the workers to be in and out of the oil tank or the ventilation. The non metallic oil tank is provided with a hole of the tank, and the human hole of the metal oil tank is arranged on the bottom plate of the tank wall. Mostly for a 600 mm diameter hole, the heart from the base plate 750mm, tank cleaning or maintenance personnel in and out of the tank, also known as the door. Maintenance cleaning tank moment daylighting and ventilated manhole. The oil tank capacity 1~2 personal hole in 5000m fand below, more than 2 individual 5000m fand hole. The manhole should be installed with the inlet and outlet pipe lines are not more than 90 degrees. When only one hole should be placed in a tank top on the opposite side of the light hole; when two man holes, one of them in the opposite side of the light hole, another should be at least and the first man Kong Xiangge 90 degrees. Manhole should be one in and out pipe near the right side, and try to make manhole to the tank room airtight door, so that personnel access, and maintenance of tanks and ventilation connecting tube.