Magnetic couplings improve the reliability, safety and efficiency of polyurethane processing by eliminating the need for drive shaft seals in the metering pump.
Mechanical shaft seals, which separate the drive motor from chemicals in the metering pump, deteriorate over time and cause leaks. Magnetic couplings enclose the drive shaft in an airtight housing. There are no mechanical seals. Permanent magnets in the coupling's nested rotor system transmit the high drive torque through the coupling enclosure, providing wear-free operation and overload protection.
The airtight, leak-free design makes magnetic couplings an ideal technology for meeting environmental and safety requirements associated with processing the more toxic, aggressive or flammable components used in some polyurethane foam applications.
It is important that the magnets, enclosure material and mounting flanges are sized correctly for your process and metering pump / drive motor combination. Ceramic coupling enclosures are available for process temperatures greater than 250° F (120° C).
Our process experts will assist you in selecting the correct conversion kit for your process.
We need to know the following information:
- Metering Pump - manufacturer and model number.
- Drive Motor - manufacturer, model number, HP, RPM and frame size.
- Process Conditions - isocyanate and polyol viscosity, operating temperature and maximum temperature.
- Metering Pump Inlet Pressure - feed pressure from pressurized tank or low-pressure feed pump
