日本有码一区二区色呦呦_日韩福利免费在线观看_高清白丝喷水jk娇喘视频_惠民福利国产欧美日韩精品高清二区综_热久久美女精品天天吊色_厨房人妻熟妇精品乱又伦_菠萝蜜app最新免费观看_嫩草影视911香蕉_黄片A中文字幕在线播放_在线观看av永久网址

One of the reasons for insufficient pump head is that excessive air or gas is contained in the liquid. Solution: Reduce liquid temperature to remove gas.

The second reason for insufficient pump head is that the speed is too low. Solution for triple pump industry: Check whether the voltage is within the rated voltage range and whether the motor is running normally.

The third reason for insufficient pump head is the wrong steering of motor. Solution for triple pump industry: the reason is that the power supply and the zero wiring are in reverse, so it's OK to change one. This problem is a man-made reason, and generally does not easily arise.

The fourth reason for insufficient pump head is that the total head is higher than the pump design head. Solution: Replace the pump with higher lift level.

The fifth reason for insufficient pump head is that the liquid concentration is different from the design value. Solution: Replace the pump that meets the requirements.

The sixth reason for insufficient pump head is that the operating flow is far below the minimum flow. Solution for triple pump industry: Replacement of water pumps that meet the requirements.

The seventh reason for insufficient pump head is wear-resistant ring. Solution: Replace the qualified brand-new wear-resistant ring.

The eighth reason of insufficient pump head is the damage of impeller. Solution: Replace qualified new impeller.

The reason of insufficient pump head is 9. Damage of seal pad causes internal leakage, which leads to insufficient pump head. Solution: Replace qualified new gaskets.

Ten reasons for insufficient pump head, impurities mixed into the pump, resulting in impeller and flow channel blocked. Solution: Remove the pump and clean up the debris.