test specimen

• control valves and shut-off valves
• safety and pressure relief valves

applications

• flow capacity and head losses
• cavitation and choking flow
• noise (turbulence, cavitation)
• hydrodynamic torque (actuator)
• flow visualization
• velocity profiles
• vibrations
• design optimization

features

• test medium: water
• flow capacity: 1.9 m³/s
• maximum diameter: 1000 mm (40")
• length of test section: 28 m
• maximum line pressure: 12 bar

test procedures

Testing takes place according to international standards (ISA, IEC, VDMA). The flow is supplied by eight speed-controlled pumps, which can be used in series or parallel to obtain wide ranges in flow and pressure head. The pressure in the closed loop rig is controlled and maintained constant with an air vessel.

accuracy

• flow: within 1 % of measured value
• absolute pressure: within 0.5% of measured value
• pressure difference: within 1 % of measured value
• sound pressure level: within 1 dB
• hydrodynamic torque: within 1 % of measured value

specials

• de-aerator, re-absorber (air content of water)
• van Slijke meter (air content of water)
• cavitation susceptibility meter
• acceleration meters (vibrations)

more information

For more information contact Martin Boele.