R512 type High performance concentric butterfly valvesadvanced foreign technology on the basis of soft contact seat sealing structure multiple can effectively prevent leakage.

R512型高性能无销中线蝶阀在引进国外先进技术的基础上采用轻柔的接触式阀座和优良的多重密封构造能有效防止外漏。

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They are designed to provide a secondary seal in the event the cylinder valve develops leakage through the valve seat.

它们是设计用来在钢瓶阀门通过阀座产生泄漏的情况下提供一个二次密封。

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Though there is no condensate water that uses ball-type sealed lever to make the valve clack tightly adhesion to the valve seat, it can prevent the fresh vapor from leakage.

由于阀座孔在凝结水水位以下，形成水封，水、汽自然分离，达到无蒸汽泄漏。

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