The SB series Centrifugal Pump has been designed and developed for petroleum drill in solid control equipment. It adopts the axial sucking structure and all the hydraulic components are friction proof cast iron, which is suitable for delivering the corrosive liquids with suspended particles in well drilling or other similar liquids. When designing the Centrifugal Pump. Its specifications were fully thought that the complete solid control equipment can work under the best operating mode. It is endowed with high communality of parts, operating reliability, durability and convenient maintenance etc. The SB series Centrifugal Pumps is adopted auxiliary impeller, so the seal is more reliable. The pump is used the lip seal, immersion asbestos and rubber square coil seal, the therefore the seals are maintained conveniently. Our double-row grease lubricated bearing design provides long hours of trouble-free operation. The machine all lubricated bearing can also be used as request. ZH can provide similar Centrifugal Pumps that are interchangeable with Mission and MCM parts.
Technical Parameters of Centrifugal Pump
- Compared with ordinary Centrifugal Pump, the Centrifugal Pump is heavy and durable. Because of its special strength, the wall thickness is thicker than ordinary Centrifugal Pump, and the service life is relatively longer. The Centrifugal Pump is of centrifugal design, and the axial clearance between the impeller and the Centrifugal Pump body is the same. The pump can pump streamlined liquids and even cut off the flow. The Centrifugal Pump body has an annular flow channel, which can eliminate eddy current and cavitation, and can also reduce the radial load of the bearing. Since the inlet pipe diameter of the Centrifugal Pump is reasonable, the suction pressure must be low. The seal of the Centrifugal Pump body adopts a groove structure to prevent the liquid flow from leaving the impeller. Not only ensure the reliability of the Centrifugal Pump, but also greatly improve the work efficiency.
- The impeller is open style, which can eliminate the backflow phenomenon in the closed impeller. The design of this impeller can reduce eddy current, reduce radial and axial load (pressure), and make the liquid flow smoothly. Because there is no need for high-pressure flushing of general Centrifugal Pump, the wear of the Centrifugal Pump body is relatively small. The design of the impeller allows the liquid flow from the impeller to be mixed with the return liquid to reduce the wear of the Centrifugal Pump. The open impeller has a non-exposed impeller nut or shaft thread. After the impeller is installed, the thread protection is realized by a “0” ring. Not only improves the work efficiency, but also increases the working life of the Centrifugal Pump.
- The Centrifugal Pump shaft has a large diameter, and when it bears heavy loads, the curvature can be reduced to a minimum, thereby correspondingly extending the life of the packing. When the wear is caused by the packing, only the shaft sleeve needs to be replaced, not the entire shaft. The replacement of the shaft sleeve and the mechanical seal does not require the shaft to be removed from the Centrifugal Pump. This not only greatly improves the working efficiency of the Centrifugal Pump, but also makes the maintenance of the Centrifugal Pump easier and easier to operate.
- The Centrifugal Pump bearing is easy to maintain. The outer bearing assembly is composed of two centripetal thrust bearings with high load rotation; the inner bearing is a heavy-duty double row ball bearing, which can bear the high radial load of the shaft to compensate for the large Impeller and heavy load conditions. Only the best bearings are allowed for this Centrifugal Pump.
- The stuffing box gland combines the functions of the seal and the stuffing box into a replaceable whole, and a bolt is installed on the middle opening surface corresponding to the stuffing box. The stuffing box can be sealed with packing or mechanical seal. The split (open) design makes it easier to contact the shaft sleeve.
- This machine seal is made of high-quality materials and optimized design, so it has good working performance. This machine seal has more than 10 drive plates, and its thickness is 25-50% thicker than other machine seals on the market, so the stress on the outer seat of the machine seal is reduced accordingly. All the metal parts of the machine seal are made of 316 stainless steel, the elastic material is made of fluorinated rubber, and the sealing end faces of the moving ring and the static ring are made of tungsten carbide.
- The Centrifugal Pump flow components include stuffing box, impeller and Centrifugal Pump body. They are made of high-quality ductile iron with excellent performance. After these parts are processed and inspected, they need to be quenched and heat treated to reach a certain hardness (HRC40～44), which not only enables the Centrifugal Pump to adapt to harsh environments, but also greatly improves the working life of the Centrifugal Pump.