一、VKF42.西门子电动蝶阀产品概述材质分铸铁或球墨铸铁阀体适用于符合ISO7005的PN16配对法兰适用于在暖通空调系统中作为电动阀或截止阀使用、制冷机和冷却塔顺序控制、换热器或整个换热站水流的通断控制执行器信号2P-SPDTSQL321B25SQL321B50SQL321B150SQL321B270SQL321B570SQL321B1400SQL321B2650DC0-10VSQL361B50SQL361B50SQL361B150SQL361B270SQL361B570SQL361B1400SQL361B2650蝶阀kVSm3/hDps[kPa]VKF42.5065700VKF42.65140700VKF42.80210700VKF42.100470700VKF42.125750700VKF42.1501250700VKF42.2003100700VKF42.2504050700VKF42.3007500700VKF42.35010250700VKF42.40014100700VKF42.45018500700VKF42.50024000700VKF42.60037000700一、产品选型备注：SQL321B..、SQL361B..电动执行器可直接安装在VKF42..系列蝶阀上。Dps在保证电动蝶阀可安全关闭的情况下，阀门两端的最大允许差压(关闭压差))