The company Noreva GmbH (Non Return Valves) was founded in August 2001 and started with 9 employees who were formerly working for Mannesmann Demag, the inventor of the nozzle check valve 1935.
Noreva has continuously grown and currently has a staff of 55. All of these employees have many years experience with non-slam check valves. With our track record of supply, Noreva has developed an enviable reputation for quality and reliability of product at internationally competitive prices.
Since 2007 Noreva has been part of Goodwin PLC Group.
Noreva is located in the industrial area of Mönchengladbach in Germany. Few valves are sold from stock, the majority of our production is tailor-made to customer specification.
All Noreva non-slam check valves are characterized by non-slam closure, low pressure loss, metal-to-metal sealing and are considered maintenance free.
You will find Noreva check valves all over the world (Average export rate 75%), whether liquid or gaseous fluids, in different applications such as oil pipelines, chemical plants, compressor stations, power plants, water pumping stations, desalination plants, etc.
Nozzle Check Valve Advantages
Typically, systems are operated at low flow rates to minimise pressure losses and maximise plant efficiencies. To help operators achieve this, Noreva nozzle check valves can be fully open at a flow velocity of 1.5m/s, ensuring minimal pressure drop across the valve.
The high economic efficiency of our nozzle check valves is a result of very low pressure losses and the maintenance-free design. Due to short strokes and low moving masses supported by helical springs the valves close slam-free within fractions of seconds.
The Noreva Nozzle Check Valve designs use no soft parts. Also as there are no wearing parts, it is maintenance free. The springs are sized according to the flow rates to ensure that the valves are in the fully open position during normal use. This minimises cycling of the spring, giving the valves a long design life without regular maintenance.
Horizontal or Vertical
Lightweight discs and spring assisted closure combine to allow the Noreva Nozzle Check Valve to maintain the same high performance regardless of vertical or horizontal installation.