Product Overview of the PBG Vertical Canned Centrifugal Pump

PBG‑type vertical canned centrifugal pump: This series of canned pumps, specially designed for air‑conditioning and boiler circulating water supply, addresses the common issues found in today’s market—excessive noise and significant vibration—that disrupt people’s work and living environments. To resolve these problems, the pump and motor have been integrated into a single, hermetically sealed unit. First, by eliminating the conventional mechanical seal (shaft seal)—a critical wear component in standard pumps—the pump completely eliminates leaks caused by seal failure, ensuring zero leakage and keeping the pump room clean and tidy. Second, ball bearings have been replaced with sliding bearings made from impregnated resin and petroleum‑based materials, which offer a low coefficient of friction, excellent self‑lubrication, and superior wear resistance, while being lubricated by the conveyed fluid. This results in virtually silent operation and significantly reduces the need for periodic bearing lubrication and maintenance. In addition, the impeller features a suspended‑design, keeping the rotor in a floating state during operation. This minimizes axial wear on the graphite bearings, thereby extending their service life to over 30,000 hours. Consequently, labor intensity and operating costs are greatly reduced, making this pump an ideal high‑quality solution for HVAC, heating systems, and other water‑supply applications.

Application Scope of PBG-Type Vertical Canned Centrifugal Pumps

1. This type of canned‑motor pump, specially designed for air-conditioning systems, is intended for conveying clean water and other liquids with physicochemical properties similar to those of clean water. The maximum operating temperature of the fluid is 80°C. It is suitable for industrial and municipal water supply and drainage, pressurized water delivery in high-rise buildings, landscape irrigation, fire‑fighting booster applications, long‑distance pumping, HVAC and refrigeration circulation, as well as cold‑and‑hot water circulation and pressure boosting in bathrooms and other equipment. It is particularly well suited for applications with stringent requirements for vibration and noise levels, such as underground pump rooms and air‑conditioning refrigeration systems.

2. This type of canned‑motor, air‑cooled boiler circulating feedwater pump is primarily designed for conveying soft water at temperatures not exceeding 160°C, free of solid particles. It is suitable for applications in the energy, metallurgical, chemical, textile, and paper industries, as well as in hotels, restaurants, bathhouses, for pressurizing and circulating boiler hot water, and in urban heating systems.

3. This type of canned‑motor chemical centrifugal pump is designed for conveying liquids that are free of solid particles, corrosive, and have a viscosity similar to water. It is suitable for use in industries such as petroleum, chemical processing, metallurgy, power generation, papermaking, food processing, pharmaceuticals, and synthetic fibers.

Product Features of the PBG Vertical Canned Centrifugal Pump

1. The pump features a compact design, with an integrated motor‑pump configuration that minimizes its footprint. Its vertical layout ensures a small installation footprint, smooth operation, and eliminates the need for alignment during installation.

2. The pump’s inlet and outlet are designed with flanges of identical specifications and aligned on the same centerline, allowing it to be installed directly on the pipeline like a valve. Its low center of gravity facilitates piping layout and ensures exceptionally convenient installation.

3. The pump and motor are coaxial, with a short axial dimension, ensuring smoother operation and lower noise levels.

4. The conventional shaft seal has been eliminated, preventing leakage of the conveyed medium and thereby offering the distinct advantage of safe, leak-free operation.

5. Sliding bearings are used in place of conventional rolling bearings in the motor, ensuring exceptionally smooth operation and extremely low vibration and noise levels.

6. Installation and maintenance are convenient; there is no need to dismantle the piping system—simply remove the coupling nuts to extract all rotor components for inspection and repair. Resin-bonded sand mold casting ensures a high-quality appearance, precise flow‑path dimensions, and optimal hydraulic efficiency of the pump.

7. The pump can be operated in series or parallel configurations according to the required flow rate and head.

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Meaning of the PBG-Type Vertical Canned Centrifugal Pump Model Designation

PBG100-160IA

PBG—Shielded Pump Unit Code

100—Pump inlet and outlet diameter (mm)

160—Nominal impeller diameter (mm)

I-Traffic Classification

A—First-stage impeller cutting