美标法兰闸阀(铜)

概述:

美标法兰闸阀(铜)是符合美国标准(如 ANSI/ASME B16.1、B16.34 等)、采用铜及铜合金为核心阀体材料、通过法兰连接方式安装的闸阀类型,主要用于控制液体(如水、油、弱腐蚀性溶液等)的通断,是工业管道系统中常见的截断类阀门,尤其适用于对材质耐腐蚀性、密封可靠性有一定要求的中低压场景。


压力等级:Class 150(PN2.0MPa)、Class 300(PN5.0MPa)

公称口径:NPS 1/2(DN15)~NPS 12(DN300)

介质特性:水、油、弱酸碱

温度范围:- 20℃~120℃

Products and services that meet fluid control requirements

Each process, each facility, and each environmental constraint has its own special requirements. Therefore, Dongyan offers a comprehensive range of products covering different performance levels, pressures, different functions and different materials.

Detail

使用与维护注意事项

启闭操作:严禁 “猛开猛关”,手动操作时需缓慢转动手轮,避免闸板与阀座撞击;明杆闸阀需记录启闭行程,避免过度启闭导致阀杆损坏。

介质清洁:安装前需清理管道内的杂质(如焊渣、铁锈),可在阀门前加装过滤器,防止杂质划伤密封面。

定期维护:每 3~6 个月检查阀杆密封(填料函)是否泄漏,若出现渗漏需紧固填料压盖或更换填料(如石墨填料、四氟填料);长期停用后开启前,需转动手轮润滑阀杆螺纹,避免卡滞。

腐蚀防护:若用于潮湿或户外环境,需定期对阀体法兰、手轮等部位涂覆防锈漆(铜阀体本身防锈,但连接螺栓、手轮可能为碳钢材质)。

Product Application Scope

These devices are suitable for accurately controlling media such as gases, liquids, steam, etc., and maintaining process parameters such as pressure, flow rate, temperature, and liquid level at given values. Especially suitable for work environments where the allowable pressure difference is small and the allowable leakage is also small, and the pressure difference is not significant.

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