4. The pump casing is composed of several components, forming the impeller working chamber, suction chamber, and pressure chamber within its cavity. The shape and size of the pump casing depend on the structure and dimensions of the impeller, as well as the shape and size of the suction and pressure chambers determined by hydraulic design. The pump casing primarily comes in two types: end cover pump casing and mid-open pump casing. The end cover pump casing is divided along a radial plane perpendicular to the pump's axis line, forming the pump body and cover, commonly used in single-stage pumps. The mid-open pump casing is divided along a plane passing through the pump's axis line, often used in double-supported volute pumps, such as horizontal shaft single-inlet and double-inlet pumps, etc.
One, Product Overview: The IH type horizontal corrosion-resistant chemical pump is a single-stage, single-suction (axial suction) cantilever centrifugal pump, designed for conveying liquids that are corrosive, non-solid, and have a viscosity similar to water. Its marking, rated performance, and dimensions are equivalent to the international standard ISO 2858, featuring a wide performance range, high efficiency, high "three-standardization" level, and ease of maintenance. Its efficiency is an average of 5% higher than that of the F type pump, making it a power-saving product promoted by the state.
Product Application: The IH-type horizontal corrosion-resistant chemical pump transports media with temperatures ranging from -20℃ to 105℃. A double-end face seal cooling unit can be used as needed, and it can transport media at temperatures below 300℃. It is suitable for industries such as chemical, petrochemical, metallurgy, electricity, papermaking, food, environmental protection, wastewater treatment, and synthetic fibers for conveying various corrosive or unpollutable water-like media.
III. Technical Specifications:
Flow Rate: 6.3 to 400 m³/h
Flow Range: 5-132m
RPM: 2900, 1450 r/min
Power: 0.55~110KW
Import Diameter: 50-200mm
Working Pressure: 1.6 Mpa.
IV. Model Significance:
For example: IH80-65-160A
IH - International Standard Chemical Industry Centrifugal Pump
80 - ID (mm)
65 - Outlet Diameter (mm)
160 - Impeller Nominal Diameter (mm)
A-Outer Diameter of Impeller after Sub-Cutting
I. Product Overview:
The CDLF type light-duty stainless steel vertical multi-stage pump (hereinafter referred to as the pump) is a non-self-priming vertical multi-stage centrifugal pump designed and manufactured by integrating domestic and international technologies. It features a standard vertical motor and quick-installation mechanical seal, making replacement extremely convenient. All flow passages of the pump are made of stainless steel (304/316), suitable for slightly corrosive media. The CDLF type light-duty stainless steel vertical multi-stage pump can replace similar foreign products such as CR, CRN, etc. After its market launch, it has been well-received by a wide range of users for its energy-saving, reliable quality, and broad application range.

Corrosion of sealing elements by liquid media, stress concentration, mismatched soft and hard materials, erosion, incompatibility between O-rings, V-rings, concave rings and the liquid medium, and deformation can all lead to surface damage and failure of mechanical seals. Therefore, a comprehensive analysis of the damage forms is necessary to identify the root cause, ensuring long-term operation of the mechanical seals.

Features
By inhalation method
Single-stage pump liquid flows into the impeller from one side, resulting in an axial force.
The liquid for the double-suction pump enters from both sides into the impeller, eliminating axial force, and the flow rate of the pump is almost doubled compared to a single-suction pump.
By grade

Single-stage pump shaft features only one impeller.
A multi-stage pump features two or more impellers mounted on the same shaft. The liquid flows sequentially through each impeller stage, with higher stages resulting in greater head.
According to the orientation of the pump shaft
Horizontal pump shaft orientation
Vertical shaft of the vertical pump
Shell Type
Please provide the Chinese content you would like translated.