1. Generally non corrosive clean water

2. The sand content in water shall not exceed 0.01% (mass ratio)

3. The pH value ranges from 6.5 to 8.5.

4. The chloride ion content in water shall not exceed 400 milligrams/liter

5. Hydrogen sulfide content not exceeding 1.5 milliliters per liter

6. The water temperature should not exceed 20 ℃.

Summary of the usage environment and conditions of horizontal water pumps:

1. A three-phase AC power supply with a power frequency of 50Hz and a rated voltage of 380V or 660V (with a charging tolerance of plus or minus 5%).

2. The volume ratio of solid matter in the conveying medium is below 2%, and the density of the conveying medium is 1.2 x 10.

3. The temperature of the conveying medium shall not exceed 40 degrees.

4. The pH value of the conveying medium is 4-10.

5. The sewage submersible pump unit without a cover is allowed to operate for a short time of no more than 0.5 hours when the electric pump motor is exposed to the water surface, starting from the cooling state of the motor.

6. Based on the center of the impeller, the depth of penetration shall not exceed 20m.