按橡胶密封圈使用性能，根据具体情况定期对阀体的密封圈进行更换，以保证阀门的密封性能。
Exchange the sealing ring of the valve body according to the working condition of rubber sealing ring in order to ensure the sealing performance.
该蝶阀采用阀体同质材料加工成密封圈，采用电或气传动。
The butterfly valve using the same materials as seals, the use of electric or gas transmission.
根据介质性能及使用期，应经常检查阀体顶部四氟密封圈和孔板部的四氟薄片。
According to media performance and the use of period and should always check the valve orifice at the top of the Ministry of PTFE seals and PTFE sheet.
更换阀体材质和密封圈复合夹层可适用不同介质。
Different body materials and seal ring compound folder layer are suitable for different medium.
这样即满足了保护密封圈的要求又不对汽轮机阀体有伤害。
This satisfies the requirement of protecting seal spring and also never puts damage to valve on steam turbine.
弹性密封阀门，密封圈可以镶嵌在阀体上或附在蝶板周边。
The elasticity seals completely a valve portal, the hermetic sealing ring can inset on the valve body or attach peripheral at the Die board.
弹性密封阀门，密封圈可以镶嵌在阀体上或附在蝶板周边。
The elasticity seals completely a valve portal, the hermetic sealing ring can inset on the valve body or attach peripheral at the Die board.
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