BQ41F缩径保温球阀特点
    BQ41F缩径保温球阀具有保温、保冷特性。按GB设计制造法兰连接按79-94标准制造用于石油、化工、冶金、制药行业。
    BQ41F缩径保温球阀由于采用了蒸气夹套保温。故即使外界温度降到零度以下，该阀仍操作灵活保证输油管道能断开，其优点是一般控制阀门所没有的。它是重油输送管道理想的控制阀门。
根据用户需要夹套注入蒸气、导热油、冷却水、冷气等。使用整个阀门长温或降温达到所需要的温度。能防止介质结晶。 BQ41F缩径保温球阀产品具有良好的保温保冷特性，具阀门的痛径与管径一致，同时又能有效降管路中介质热量损失。主要用于石油、化工、冶金、制药、食品等各类系统中，以输送还常温下会凝固的高粘度介质。

BQ41F necking characteristics of thermal insulation ball valve
     BQ41F necking insulation ball valve with thermal insulation, cold insulation properties. Designed and manufactured according to GB standard flange manufactured by 79-94 for the petroleum, chemical, metallurgy, pharmaceutical industry.
     BQ41F necking insulation steam jacket ball valve used as insulation. Therefore, even if the outside temperature is below freezing, the valve is still operational flexibility to ensure that the pipeline can be disconnected, the advantage of general control valve does not have. It is ideal for heavy oil pipeline control valves.
Jacketed steam injection according to user needs, oil, cooling water, air conditioning. Use warm or cool the entire valve length to achieve the desired temperature. Media to prevent crystallization. BQ41F necking thermal insulation ball valve products with good cold properties, with a diameter of the valve diameter and the same pain, while the effective medium heat loss down the pipeline. Mainly used in petroleum, chemical, metallurgical, pharmaceutical, food and other kinds of systems, to transportation also will be solidified at room temperature the high-viscosity media.

二、缩缩径保温球阀主要零件材质表：

注：缩径保温球阀主要零件及密封面材质可根据实际工况条件或用户特殊要求设计先用。

三、缩径保温球阀技术规范：

注：缩径保温球阀主要零部件及密封面的材质可根据实际工况条件或用户特殊要求设计选用。