Pump of phreatic water blowdown must not show surface to move

The welcome visits Shandong Hairui Zhonglian Pump Industry Co. , ltd. Website, the blowdown pump that my company is a major produces manufacturer. When you need blowdown pump type selecting, we will provide the before-sales service such as price of pump of blowdown pump model, blowdown, in order to offer your referenced alternative. This product information is the knowledge that moves about diving blowdown pump must not show water:

The note of pump of phreatic water blowdown  :
1) the air-bleed hole that inspects pump of phreatic water blowdown, turn on the water whether does the say sth definitive so as to prevent further discussion that connect of cable of the aperture, Kong He that put oil handles become loose,
2) shake with 500 bend over the watch checks insulation resistance, answer to not be less than 0.5 million Europe, if be worth under this, want to dig open water, air-bleed hole, undertake stoving or insolation.
3) inspect go under waterBlowdown pumpCable, like have crack or break off wait for a circumstance, should give change, lest leakage of electricity.  
4) new or had changed whole afresh the pump of phreatic water blowdown of sealed box, after using 50 hours, should check sealed good, check every months later, the screen sleeve between examination electromotor rotor and stator is sealed at the same time good.
5) after using a year, should examine the rustily case of pump, divide rubiginous lacquer. If pump of phreatic water blowdown is long-term need not, should put in dry and ventilated house to keep after microscope.
6) all circuit switch should be checked before actuate, see its wiring whether firm, go up in the ground next idling 3 ～ 5 minutes, check electromotor to put turn way is right, as above is narrated do not have a problem, ability can be put into water to use.
7) when in diving blowdown pump puts water, be being used, cannot make cable gets power, applied rope wears its tie in the wood of wellhead on, electric pump puts the bigger deepness in water to be 3 meters, lesser deepness is 0.5 meters.
8) in moving, pump of phreatic water blowdown often should watch the metabolic situation of the water level in logging, electromotor can show water anything but, also cannot be immersed in silty in, lest influence electromotor comes loose,be heated up and burned-out winding. Should change along with the water level in the well, rise at any time fall electric pump, if appear to water quantity decreases or be interrupted, should prove a cause immediately or stop machine examination.
Thank you to be mixed to the visit of above content very much read! This information is the introduction that moves about diving blowdown pump must not show water, if you still want to have farther knowledge to this problem, or want to buy this relevant product, contact personnel of my company customer service directly please, my company returns production to suck pump oneself, welcome you at any time seek advice.