| 材质:球墨铸铁 | 连接形式:法兰 |
| 结构形式:偏置板式 | 适用介质:空气 |
| 压力环境:低压 | 工作温度:真空 |
| 标准:国标 | 流动方向:双向 |
| 驱动方式:手动 | 零部件及配件:阀体 |
| 用途:风量调节 | 类型（通道位置）:直通式 |
| 口径:500 | 公称通径:500 |
| 安装尺寸:500 |
通风蝶阀
·性能规范
用途及特点
通风蝶阀采用与阀体相同材料加工成密封圈，其适用温度随阀体选材而定，公称压力~<0．6MPa，一般适用于工业、冶金、环保等管道作通风调节介质流量之用。其主要特点为：
1、设计新颖、合理、结构*，重量轻，启闭迅速。
2、操力矩小，操作方便，省力灵巧。
3、采用适应的材料以满足低、中、高不同介质温度其及腐蚀性介质等。
·采用标准
·设计标准： GB／T12238-1989 JBIT8692-1998
·法兰连接尺寸： GB／T9115．1-2000
·结构长度： GB／T12221-1989
·压力试验： GB／T1 3927-92；JB／T9092-1999
·主要技术参数
公称通径 | DN（mm） | 50-2000 |
公称压力 | PN（MPa） | 0.05 | 0.25 | 0.6 |
试验压力Ps（MPa） | 强度试验 | 0.075 | 0.375 | 0.9 |
密封试验 | ≤1.5％泄漏量 |
适用介质 | 煤气、含尘气体、烟道气等。 |
驱动形式 | 手动、蜗杆蜗轮传动、气传动、电传动。 |
·要零件的材质
零件名称 | 材料 |
阀体 | 铸钢、不锈钢、铬镍钼钛钢、铬钼钛钢等特殊材料 |
蝶板 | 铸钢、不锈钢、铬镍钼钛钢、铬钼钛钢等特殊材料 |
密封圈 | 与阀体相同 |
阀杆 | 碳钢、2Crl 3、不锈钢、铬镍钼钛钢 |
填料 | 氟塑料、柔性石墨 |
·蝶阀密封材料选用和适周温度
材料品种 | 碳素钢 | 低温碳钢 | 合金钢 | 奥氏体不锈钢 | 铬钼钢 |
代号 | WCB | LCB | WC6或or WC9 | C5或or C12 | 铬 Cr-18型、304、316 | 12CrMoV |
耐zui高温度 | 425℃ | 345℃ | 595℃ | 650℃ | 600℃ | 560℃ |
耐zui低温底 | -29℃ | -46℃ | -29℃ | -29℃ | -196℃ | -40℃ |
适用工作温度 | ≤ 425℃ | ≤ 345℃ | ≤ 595℃ | ≤ 650℃ | ≤ 600℃ | ≤ 560℃ |
产品广泛用于石油、造纸、水电、食品、医药、轻纺、冶炼、污水处理、矿厂、化工、高层建设、给排水等工程，行销国内外各大、中、小城市，深受广大用户的信赖和好评。热枕欢迎新老客商前来洽谈. ：.
Fujian xingda valve manufacturing Co., LTD is located in the west coast of the strait economic zone of Chinese famous faucet hometown - fujian quanzhou verdant town, hebron with Taiwan sea, it is domestic production base of three plumbing valves, resource advantage is remarkable. Company specializing in the production of American standard, Germany standard, British standard, Japanese standard, gb series standard valve, leading products: gate valves, butterfly valves, ball valves, check valves, globe valves, flexible ware, hydraulic control valves, filters, rubber joint etc various specifications （DN40 - DN4000） valve, can also according to customer's requirements. Independent research and development of the water supply and drainage valve series of similar products in the country in a leading level, water double wedge gas storage butterfly valve, cut-off valve, cut-off valve double hemisphere water fills the domestic blank. As an iron and steel enterprise, dealing not many brilliant speech, we only follow is: HuanWei customers' needs, strives for the survival by the quality, seek development by innovation, to management for efficiency. With the first-class quality, the best price and high quality service, repay masses of users, realization and customer genuine "win-win". Warmly welcome domestic and international manufacturers to visit our company, technical communication, negotiation and cooperation.
Contact: ChenZhiJia
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