Performance test bench for thermostatic valves
- Quick and easy installation of valves of any shape
- Automatic testing without manual intervention
- Test reproducibility
- Standard tests according to NF, EN, ASSE, NHS standards
Products tested
Sector of activity
Main functions
The thermostatic performance test bench is a test bench for studying the hydraulic performance of thermostatic mixing valves and limiters. This test bench allows the precise analysis of the reaction of the devices to variations in temperature (EC), flow and pressure (EC, EF), etc…
Operating mode
The test bench generates pressure through servo pumps and controls the motion of the control levers of mixers and limiters by means of motorized actuators. These actuators are installed on a “C” beam that allows flexible fixing on all types of taps. When the devices to be tested are positioned on the test bench, the pre-programmed test scenarios will take place to actuate the faucet, to measure pressures, flow rates and temperatures, etc.
Device features
- Test device orientation and positioning plate
- Automatic actuators for all types of valves
- All-stainless steel chassis
- PC control
Technical specifications
- Operation of self-learning servo controls
- Closed-loop pressure generation (Hot water, Cold water) from 0 to 6 bar (± 0.05) from 0 to 2×25 l/min
- Instant pressure variation by programming
- Operation force and torque 100 N; 6 Nm
- Automatic integration of test standards into software
- Automatic redaction and editing of test reports according to selected standards
- Archiving and data transmission
- Optimization of water recovery (hot-cold)
- The assembly includes :
- 2 pumps
- 2 to 3 servo motors
- 2 to 3 pressure sensors
- 2 flowmeters;
- 4 temperature measurements
Endurance thermostatic mixer
Automated movement of a thermostatic mixing valve using 2 rotary actuators, one for temperature control and one for flow rate control;
Advantages of Perf-Multi
Bench flexibility
The performance bench can be adapted to a wide range of valves, thus broadening the spectrum of products to be tested.
Automatic tests
Tests are performed automatically, with no manual intervention required.
Automatic reports
Automatically write and edit test reports according to selected standards.
TECHNICAL CHARACTERISTICS of the Performance Bench for Thermostatic Valves
Specifications | PERF-MULTI |
Hydraulic performance | |
HW and CW flow | 0-25 l/min |
HW and CW pressure | 0-6 bar |
Pressure measurement | ± 0,01 bar |
Flowmetering HW, CW, MW | ± 0,1 l/min |
HC and CW pressure regulation | ± 0,05 bar |
Thermal performance | |
HW, CW, MW temperature measurement | ± 0,2° C |
Mechanical performance | |
Rotary actuator | |
Max. torque in both directions | 6 N.m |
Max. speed in 2 directions | 180°/s |
Torque measurement resolution | 0,01 N.m |
Resolution of angular position measurement | 0,1° |
Max. angle of rotation | unlimited |
Linear actuator | |
Max. force in 2 directions | 100 N |
Max. stroke | 125 mm |
Max. speed | <40 mm/s |
Force measurement accuracy | ± 0,1 N |
Position measurement accuracy | ± 0,1 mm |
Dimensions of a workstation | |
Width | 1 400 mm |
Height | 1 500 mm |
Depth | 800 mm |
Weight | ≈250 kg |
OPTIONS
Actionneur-rotatif
The rotary actuator is used to operate rotary valve controls. It is equipped with torque and position measurement, and can be piloted in position, speed and torque. The output shaft is a splined hollow shaft that can be fitted with a wide range of tooling. It can also be coupled to a linear actuator (e.g. for single-control mechanical mixing valves).
Linear actuator
The linear actuator is used to operate valve controls such as the flow rate of a mechanical mixing valve, diverter controls, timed valves, etc. It is equipped with force and position measurement and can be controlled in position, speed and force. It features force and position measurement, and can be controlled in position, speed and force.
BY-pass Hot-cold
The hot-cold by-pass allows hot water to be sent to the cold water inlet of the faucet and vice versa. This system is used, for example, to cool the body of thermostatic valves during the thermal cut-out test (initial tapping).
Abaissement rapide de température d’eau chaude
This system enables a sudden drop in hot water temperature of up to 12°C in just a few seconds. It is used in particular to characterize the behavior of thermostatic mixing valves in the event of a sudden change in hot water supply temperature.
Distributor
When the water supply circuit to a bench is a closed circuit, the Distributor allows mixed water from the tap to be returned to the hot water circuit on the one hand, and the cold water circuit on the other, in proportion to temperature. Thanks to this system, the heating and cooling capacities of the hot and cold water generators can be significantly reduced.
Motorization of device mounting plate
Motorization of the valve mounting plate enables the valve to be positioned precisely and easily in relation to the actuator mounting beam, along 2 axes (translation and rotation). Thanks to program control, the user can memorize a particular test position associated with a particular type of valve.
Static pressure tests up to 16 bar
This system enables leak testing at high pressures, up to 16 bar, when the valve is in the closed position.
Internal and external leak detection
The internal and external leak detection system consists of 2 leak detection sensors. The first is positioned at the faucet outlet to check that the faucet is not leaking when in the closed position (internal leak). The second is positioned at the recovery sink to detect any abnormal external leakage from the faucet, and stop the test and the water supply to the bench.
Internal tanks for temperature control by exchangers on external sources
Temperature control vessels provide hot and cold water temperature control within the test bench, independent of external power supplies. Thanks to the limited volume of the tanks, the temperature setpoint can be changed in less than a minute, ensuring high-precision temperature control whatever the test conditions and bench power supply. Heating and cooling power are provided by external water supplies, which can be either an existing plant circuit or independent hot and cold water loops.
Automatic analysis and reporting software
The automatic analysis and reporting software allows each test function to be analysed from the measurement files according to various standards, curves and numerical results to be displayed and an automatic test report to be produced.
Customer applications
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