YW(P) series under-liquid sewage pump

The uniquely designed single, double-geat impeller, opening model, double leaf model impeller is high effective without block-up, the pump casing etc. flow-through parts optimizedly designed for completing with the impeller can be selected with their materials and models upon the transported media and can be made sure of the excellent hydraulic performance and working life in the transportation of the media containing suspended grains and long fibres,corrosive and abrasive.
The geat is wide and smooth and is suitable to transport the solid grain of a diameter about 50% of the pump aperture.
The motor is not placed under water and the cable as well.
Able to transport and suck the sewage of a temperature 80℃ and below, ultimately satisfying the applicable occasion or the requirements of use of dirty and oil resistance, wearability and with a higher temperature.

The impeller is submerged in water and easy to start.
An automatic liquid-level control cabinet can be fitted with if so required by users so as to get the liquid-level to control the pump's starting and stopping, without need of a special person to look after.
Soild maintenance-free design,good regidity of the pump shaft and fully-closed roller bearing of a famous brand. The pre-injected high-temperature withstanding lubricating grease makes no injection necessary during use. Stable running and low noise. Both bearing and pump's main shaft system are completely isolated by the shaft seal system and can not contact with the transported medium so as to ensure the designed running life of the bearing.
Double mechanical seals in series are used as the mechanical seal to provide a double protection and the frictional secondary one is a spiral seal made of anti-corrosive sintered tungsten carbide or silicon carbide and of a special structure and can thus be ensured to continuously run without leakage.
O-seal ring is used as the static seal, it settles the problem of leakage and greatly enhances the pump's life.

The pump is vertically structured, the drive unit(motor stand, clutch, drive shaft, connecting stand, earing)is modular designed and can be superposed at will along with the variation of the under-water depth. Both pump casing and impeller can be placed under liquid by 0.5-10m and the motor above the liquid surface, then, via connection with the drive unit, directly drives the nonblock impeller to stably run without vibration.
At the pump's inlet a suck-in barrel is set, its exquisite design makes the sucked liquid's level as deep as possible, without blockup and with a good anti-twine sewage-removal property.
The integral structure of the pump is designed comp act, stable, durable and easily mountable.
The pump can be used with common Y series motor and, if fitted with Y,Y2 series outdoor-type motor, it can be avoided to build a pump house, reducing the investment for construction,and the motor can be mounted on the ground, leaving a convenient operation, overhaul and maintenance.
An elastic cylindrical-pin clutch is used to link both main shaft and drive shaft, which has the margin compensation for the relative offset between both shafts and the general shock-reduction and buffering performance so as to make the pump stably run without vibration and with low noise. The under-liquid depth can be made completely according to the requirement of users.