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1F法兰保温球阀具有良好的保温保冷特性,且阀门的通径与管径一致,同时又能降低管 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，以输送常
温下会凝固的高粘度介质。
由于采用整体式结构，因而保温球阀比一般球阀体积更小，重量更轻，且无外漏,密封性能良好，夹套采用碳素钢管焊接比铸造的更加耐压牢固。
Features
The product bears favorable heat-preservation ａnd cold-insulation specialties.In addition, the all-diameter of the valve is identical to pipe diameter to effectively reduce the heat loss from those medium in the pipeline. It is mainly applied to transport the full- bodied mediums which solidify under normal temperature in such fields as petroleum industry, chemical industry, metallurgical industry, pharmaceutical industry,food industry, etc.
For the monolithic construction is applied in design the product, the jacket valve with favorable sealing performance features smaller configuration ａnd weight than traditional ball valves without leakage. More overpressure-resistant ａnd firmer capacities are also
enjoyed by the jacket made through carbon steel welding than that through casting.
BQ41F法兰保温球阀技术规范Technical Specification
| 设计标准 | ASME B 16.34 GB/T 12224 |
| 结构长度 | ASME B 16.10 GB/T 12221 |
| 连接法兰 | ASME B 16.5 JB/T 79 |
| 驱动方式 | 手动、电动、气动 |
| 试验和检验 | JB/T9092 API 598 |
| 适用介质 | 重油、胶类等易凝固介质 |
BQ41F法兰保温球阀主要零件材质表Form of Major Parts Materials
| 序号 | 零件名称 | 材 质 Material | |
| GB | ASTM | ||
| 1 | 夹套 Jacket | 25 | A105 |
| 2 | 阀座 Seat | WCB | A216-WCB |
| 3 | 阀体 Body | 25 | A105 |
| 4 | 密封圈 SealingRing | PTFE、对位聚苯 | |
| 5 | 球体 Ball | ||
| 6 | 阀杆 Stem | 1Cr13 | A247-410 |
| 7 | 填料 Stuffing | 柔性石墨 Graphite | |
| 8 | 填料压盖 Gland | WCB | A216-WCB |
注：系列阀门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.
Notes: Major parts of the valve series ａnd materials of sealing surface differ according to actual working condition ａnd custmer’s special requirement.
BQ41F法兰保温球阀主要外型及连接尺寸表Main Types ａnd Connecting Dimension
| 公称通径 （DN） | b | L | D | E | Q | H | W | 管螺纹 | ||
| （mm） | （in） | （mm） | （in） | P | ||||||
| 20 | 3/4″ | 19 | 117 | 40 | 11/2″ | 58.5 | 147 | 101 | 170 | G3/4″ |
| 25 | 1″ | 25 | 127 | 50 | 2″ | 62.5 | 156 | 106 | 170 | G3/4″ |
| 40 | 11/2″ | 38 | 165 | 65 | 21/2″ | 63.5 | 181 | 125 | 250 | G3/4″ |
| 50 | 2″ | 51 | 178 | 80 | 3″ | 68 | 218 | 135 | 250 | G3/4″ |
| 80 | 3″ | 76 | 229 | 150 | 6″ | 82 | 275 | 193 | 350 | G3/4″ |
| 100 | 4″ | 102 | 254 | 200 | 8″ | 83 | 300 | 265 | 420 | G3/4″ |
| 150 | 6″ | 152 | 292 | 250 | 10″ | 95 | 403 | 355 | 1000 | G3/4″ |
| 200 | 8″ | 203 | 330 | 300 | 12″ | 100 | 492 | 410 | 1300 | G3/4″ |
| 备 注Remarks | 法兰尺寸请按对应的通径参阅样本《主要外型及连接尺寸表》 | |||||||||
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