Model994 BLT Portable Hydrant Backflow Preventer is for use in protection of potable water from a fire hydrant or other nonpermanent installation where flow is in one direction only and the possibility of a cross-connection exists.
英
美
- 型號994BLT移動(dòng)式消防栓防回流閥適用于保護飲用水系統不會(huì )受到消防栓或其他流向只是單向或存在交叉連接可能的臨時(shí)性安裝的應用場(chǎng)合。
