法蘭連接保溫球閥產品特點
該產品由于采用整體式結構，因而保溫球閥比一般球閥體積更小，重量更輕，且無外漏,密封性能良好，夾套采用碳素鋼管焊接比鑄造的更加耐壓牢固。具有良好的保溫保冷特性,且閥門的通徑與管徑*,同時又能有效降低管 路中介質熱量損失。主要用于石油、化工、冶金、制藥、食品等各類系統中，以輸送常
溫下會凝固的高粘度介質。
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.
法蘭連接保溫球閥技術規范Technical Specification
| 設計標準 | ASME B 16.34 GB/T 12224 |
| 結構長度 | ASME B 16.10 GB/T 12221 |
| 連接法蘭 | ASME B 16.5 JB/T 79 |
| 驅動方式 | 手動、電動、氣動 |
| 試驗和檢驗 | JB/T9092 API 598 |
| 適用介質 | 重油、膠類等易凝固介質 |
法蘭連接保溫球閥主要零件材質表Form of Major Parts Materials
| 序號 | 零件名稱 | 材 質 Material | |
| GB | ASTM | ||
| 1 | 夾套 Jacket | 25 | A105 |
| 2 | 閥座 Seat | WCB | A216-WCB |
| 3 | 閥體 Body | 25 | A105 |
| 4 | 密封圈 SealingRing | PTFE、對位聚苯 | |
| 5 | 球體 Ball | ||
| 6 | 閥桿 Stem | 1Cr13 | A247-410 |
| 7 | 填料 Stuffing | 柔性石墨 Graphite | |
| 8 | 填料壓蓋 Gland | WCB | A216-WCB |
注：系列閥門主要零部件及密封面的材質可根據實際工況條件或用戶特殊要求設計選用.
Notes: Major parts of the valve series and materials of sealing surface differ according to actual working condition and custmer’s special requirement.
主要外型及連接尺寸表Main Types and Connecting Dimension
| 公稱通徑 （DN） | b | L | D | E | Q | H | W | 管螺紋 | ||
| （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″ |
| 備 注Remarks | 法蘭尺寸請按對應的通徑參閱樣本《主要外型及連接尺寸表》 | |||||||||
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