SFRK-B500A 型直筒型人孔5点固定，8mm厚×110mm高的直筒型颈圈。双层盖面，内置保温层，可有效延缓罐内物品的散热。打开方式为简便实用的水平旋转式。整套产品为全封闭结构，可直接焊接于罐体上。

SFRK-Z500B2 straight cylinder manhole,5 pegs,8mm (thickness) × 110 mm (height) straight cylinder Neckring.Double-layer cover, inner insulation which could effectively delay heat radiation of articles inside.Opening method applies simple and convenient horizontal rotary type. Whole products apply full seal structure which could be directly welded on the tank directly.

技术资料Technical specifications：

重量weight：33kg

设计压力Design pressure：3Bar(43.5PSI)

试验压力Test pressure：4.5Bar(65.3PSI)

设计温度Design temperature：-20℃至200℃(-40℉至392℉）

材质有不锈钢304L、316L、Q345D等可选,根据客户的要求，我们可定制各种规格型号的产品。

Many materials can be choosed such as stainless steel 304L, 316L, Q345D etc.

According to customer requirements, we can customize various specifications and models product.