FESTO用于制药，化工和石油化工厂的先导阀

费斯托先导阀纵向溢流漏结构和vofc可靠驱动蝶阀、缸、膜片执行机构和旋转执行器。

先导阀纵向溢流漏结构和vofc可靠驱动蝶阀、缸、膜片执行机构和旋转执行器。由于其坚固的设计，高耐腐蚀性和不同的点火保护类型的电磁线圈的选择，阀门可以使用在潜在爆炸性环境中zui多至21区/ 1 -即使在露天

applications.

应用。

The valves are certified to IEC 61508 and can be used in safety circuits up to SIL 3 as well as in emergency shut-down applications. With their hard ematalised housings, the valves benefit from long-term protection against corrosion and mechanical stresses.

阀门是认证的IEC 61508标准，可用于安全电路达到SIL 3以及急救关闭应用程序。他们努力ematalised外壳、阀门受益于长期防腐蚀和机械应力。

The valves also offer high process reliability and plant availability. The VOFD operates reliably and safely in fail-safe applications. The indirectly controlled VOFC combines operation with internal and external pilot air in a single housing, which reduces the cost of maintaining stocks of different variants. The valves can be easily changed over using a screw. Depending on the required function, the pressure connection can be made independently of the working pressure as a positive-pressure or vacuum connection. New to this valves series are low-temperature variants for ambient temperatures down to -50 ° C, stainless steel versions and international certification to IEC Ex, Inmetro, Nepsi and Gost.

阀门还提供高可靠性和工厂可用性。的纵向溢流漏结构运行安全可靠的故障安全应用。间接控制vofc结合内部和外部的在一个单一的住房试点空气操作，从而降低了维护成本的不同变体的股票。该阀门可以很容易地改变使用螺丝。根据所需的功能，压力连接可以独立工作压力作为一个正压力或真空连接。这个新阀门系列低温变体的环境温度下降到50°C，不锈钢版本和认证的IEC Ex，INMETRO，NEPSI和GOST。