Special compensating bypass check valves are protective pump fittings. They automatically protect rotary pumps against damage that may occur as a result of the partial evaporation of the pump content when the pumps are operated under low load.

Fields of application

• Power plants / nuclear power plants
• Chemical industry
• Petrochemical industry
• Off-shore industry
• Steel mills
• Paper industry
• Fire-extinguisher systems
• Snow cannons
• Drinking and waste water supply

Special characteristics

• Modulating and low-wear minimum volume controls as a result of the rotary valve design
• Return function in the main pumping direction
• Multi-level pressure and volume reduction in the secondary outlet - low cavitation levels
• No additional energy supply or measuring technology required
• Low pressure losses
• Vertical or horizontal installation
• Internal components made of stainless steel
• Reliable, with a long service life