这种高技术TF M内衬蝶阀特别适用于要求高纯度和最高耐化学品特性的应用场合。
This advanced technology TFM Lined valve is specially designed and produced for applications requiring high purity and maximum chemical resistance.
我们知道，目前除了蝶阀和隔膜阀在结构上完全对称外，所有其他结构的调节阀都是不对称的。
We know that, with the exception of butterfly valve and the valve is completely symmetrical in structure, all other structures are asymmetric valve.
在靠冷凝器的位置有一个气动蝶阀，将冷凝器与真空系统隔开。
A pneumatically activated butterfly valve is located close to the condenser to isolate the vacuum system from the condenser.
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