法兰闸阀是连接方式为法兰的闸阀，这种连接方式最为常见。法兰闸阀在管路中使用时稳定可靠，所以在高压管路上常采用法兰闸阀。
另外如在大的闸阀开关处两边，都设有法兰盘，就是为了拆换开关方便。
Also as in large office gate switch sides, are equipped with flange is easy to replace them switch.
研制的简易酸化井口装置由保护法兰、过渡短节、卡箍、闸阀、三通和抗振压力表等组成。
The simple well head assembly newly developed is comprised of protection flange, pup joint, clip, gate valve, tee joint and anti-vibration pressure meter.
不锈钢，无阀盖，法兰刀闸阀。
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