Description of the CBF Water Ring Vacuum Pump Model:
CBF 41 0—2
CBF—Series code.
41—Nominal impeller radius in centimeters.
0—Pump body identification code with partition.
6—With partition in the pump body.
0—Without partition.
2—Minimum absolute suction pressure can reach 180hPa.
The suction capacity of this series of vacuum pumps (high vacuum pumps): 200-1800m3/h; capacity of low vacuum pumps: 2800-1800m3/h.
Operating principle of the CBF water ring vacuum pump:
Unique eccentric design.
The impeller of the CBF series vacuum pumps uses a superior eccentric structure, which ensures the effective formation of a sealing ring and reduces liquid energy loss during transmission, making it one of the high-efficiency vacuum pumps in high vacuum pump products.
The impeller uses a semi-open structure, with a reinforcing disc in the middle and reinforcing rings on both sides, effectively ensuring the strength of the vacuum pump impeller.
Computer-aided design technology is used to display in three dimensions the two-phase flow field inside the CBF series vacuum pump, making the flow passage part better meet hydraulic characteristics.
The CBF series vacuum pumps have a simple structure: only one rotating component, the impeller, ensuring long-term, safe, and reliable operation.
Simple maintenance: the entire CBF series vacuum pumps do not require opening the pump for maintenance, as this has been considered in the design. Wear parts are few; to change the valves, only the inspection cover needs to be opened; the packing and bushings can be replaced externally.
Because the CBF series vacuum pumps use a single-stage impeller, the gas is compressed and discharged at once, allowing immediate and effective heat dissipation, significantly reducing heat transfer and working water temperature, preventing cavitation and improving efficiency.
The impeller of the CBF series high vacuum pump is made by casting, ensuring variable blade thickness and a smooth transition with a 45° radius at the impeller base, better meeting hydraulic characteristics.
The impeller of the CBF series low vacuum pump is made by welding, ensuring the strength and service life of the impeller.
The small-sized CBF series vacuum pumps use integral stuffing boxes, while the large-sized ones use split structures to facilitate maintenance.
The small-sized CBF series vacuum pumps do not have bushings, while the large-sized ones do, protecting the shaft.
The small-sized CBF series vacuum pumps use double angular contact bearings, while the large-sized ones use roller bearings and thrust bearings to prevent axial movement.
The bearing housing of the CBF series vacuum pumps uses a thrust spring to prevent axial movement.
The CBF series vacuum pumps have an adjustment wedge set on the non-driving side to adjust the axial clearance as needed.
The impeller and shaft of the CBF series vacuum pumps are mounted using a unique thermal expansion method, ensuring no axial movement (the traditional keyway method may cause axial movement).
The flat distribution plate of the CBF series vacuum pumps is machined to ensure smooth flow. (The conical distributor has unmachined channels, increasing resistance, which reduces the efficiency of the conical pump).
The air inlets and outlets of the CBF series vacuum pumps are machined on a milling machine to ensure smooth flow.
The CBF series vacuum pumps have an automatic drain valve to prevent overload due to high water level.
The CBF series vacuum pumps use a flexible method for air inlets and outlets, allowing top or side discharge according to user needs.
The air outlet of the CBF series vacuum pumps uses a flexible valve that automatically adjusts the inlet and outlet angle to avoid overload at startup.
The small-sized CBF series vacuum pumps use rod connection, while the large-sized ones use flange connection to ensure overall strength.
The CBF series vacuum pumps can use packing seal or mechanical seal (single or double face) as required to ensure tightness.
The CBF series vacuum pumps undergo static balance testing on a standard bench, using an internal counterweight method in the hub to minimize vibrations.
The flow passage components have optimized hydraulic design, with notable energy savings in the vacuum range of 200~1013hPa. The outlet with flexible valve automatically adjusts discharge, preventing overcompression and allowing stable operation throughout the range. The body and side cover are connected with flanges, solid structure and easy horizontal disassembly. The side cover has an inspection window for checking without disassembly. With partition, one pump can suction different vacuums. Equipped with automatic drain valve to control start level.
Application areas of the CBF series water vacuum pump:
Paper industry: vacuum dehydration Petrochemical industry: vacuum distillation Tobacco industry: vacuum transport Gas separation: pressure swing adsorption
Coal industry: coal washing and dehydration, gas extraction Metal mining: concentration dehydration Food industry: vacuum transport Electric industry: ash removal by negative pressure
Friendly tip: For more performance parameters of the CBF series vacuum pumps, click → 【Water Pump Selection】 Page query