The stainless steel insulated gear pump is a jacketed gear pump made with stainless steel wetted components. It is designed for transferring corrosive liquids or liquids requiring higher sanitary conditions, provided that the medium contains no solid particles or fibers and the temperature is within the specified operating range.
This pump is especially suitable for materials that have high viscosity at normal temperature or are easy to crystallize or solidify. By maintaining a suitable temperature during transfer, the medium can remain easier to flow and pump.
Structure & Working Features
The stainless steel insulated gear pump is designed for horizontal installation. The pump unit consists of the pump body, base, coupling, and motor. The pump inlet and outlet are located on the left and right sides of the pump body in a horizontal arrangement.
The pump body is equipped with a jacketed hollow chamber and heating/cooling ports. Thermal oil, steam, hot water, or other heat-transfer media can circulate through the jacket to heat and insulate the pump and the transferred liquid. When the transferred medium is a high-temperature liquid, cold water can also be circulated through the jacket to cool the medium and help maintain a suitable transfer condition.
The main flow-passing parts of the insulated gear pump are provided with hollow jacket structures for heating, insulation, or cooling. When transferring high-viscosity media, a reducer, variable-speed motor, or belt pulley drive should be used to reduce pump speed.
Features & Advantages
- Stainless Steel Wetted Parts: Suitable for corrosive liquids and media requiring higher sanitary conditions.
- Jacketed Insulation Design: Hollow jacket structure supports heating, heat preservation, or cooling.
- Temperature-Controlled Pumping: Helps keep viscous, crystallizing, or solidifying media at a suitable flowing temperature.
- Horizontal Pump Unit: Pump, base, coupling, and motor are assembled in a horizontal installation arrangement.
- Multiple Heat-Transfer Media: Jacket can use thermal oil, steam, hot water, or cold water depending on the process requirement.
- Drive Flexibility for Viscous Media: Reduced-speed drive options are recommended when handling high-viscosity liquids.
Typical Applications
- Corrosive liquid transfer
- Sanitary liquid transfer
- High-viscosity media transfer
- Materials that crystallize or solidify at normal temperature
- Temperature-controlled process transfer
- Heated or cooled liquid transfer systems
- Outdoor installation in cold regions where insulation is required
- Process systems requiring heating, insulation, or cooling
Material & Temperature Notes
For this stainless steel insulated gear pump, stainless steel construction is used for applications involving corrosive media or higher sanitary requirements.
The source text also mentions general insulated pump material classifications: Type I material HT200 for media below 200°C, and Type II material Q235 for non-corrosive heavy oil, asphalt, and similar media below 350°C. These material classifications appear to describe non-stainless insulated pump options and should be confirmed before applying them to the stainless steel pump configuration.