... double actingLow Working Current: <80mAWorking Medium:water,air,gas.Product life: 100,000 timesSpecial function: ... water,irrigation,plumbing service,hot water heating and solar glycol loop,ideal for off-grid system. Domestic water,Irrigation system,cooling/heating system,Low voltage plumbing system 7.Multiple voltage and ... Tianjin City, China QA/QC: In House Number of Production Lines: 6 Number of ...