If more than this value is greater than 15mm diameter with ZDF series multi-functionsolenoid valve for special order.
若超过此值，通径大于15mm用zdf系列多功能电磁阀作特殊订货。
2
Installed in a mainline it prevents upstream pressure from dropping below a preset minimum. Solenoid override of the sustaining function allows for electrical on-off operation.
安装在主管线内，防止上游压力降到预置最小压力以下。电磁阀的过载平衡功能使其能够进行电气开-关操作。
3
The international famous brand development, the proportion of oil pump valve, solenoid valve, hydraulic parts, hydraulic control function is good.