 |
|
|
 |
|
|
RT 396 |
|
Pump and Valve Test Stand |
|
|
|
|
|
|
|
RT 396 allows the characteristics of different shut-off devices to be compared. The three typical kinds of shut-off fittings - cocks, gates and valves - are represented by a ball valve, a butterfly valve, two slide valves and a control valve. A safety valve and a dirt trap are also investigated. All fittings are flanged, and can be installed in a test system with variable pipe length. The test system is part of a closed water circuit. Pressure measurement points upstream and downstream of the fitting under test are linked by a differential pressure manometer. This manometer is fitted with a pressure switch which activates a warning lamp if the pressure difference becomes excessive, such as when the filter is clogged. An electromagnetic flowmeter permits precise recording of the flow rates.
The closed water circuit contains three butterfly valves, to isolate the pump, and to set the pressure upstream and downstream of the test fitting. Differential pressures across the pump and test fitting, the power consumption and speed of the pump, and the flow rate and opening angle of the control valve are recorded and displayed. The measured data can also be used to plot pump characteristics.
A vice is included, on a separate workbench, for maintenance and assembly work. The workbench also incorporates the necessary tools and connecting hoses.
The comprehensive instructional material provides a description of all the components and of the complete system, including all drawings,
and precisely sets out the assembly and maintenance operations involved. |
|
Learning Objectives / Experiments |
- Characteristics of a centrifugal pump
- Operating behaviour and function of
+ ball valve
+ butterfly valve
+ sluice valve
+ gate valve
+ control valve
+ safety valve
+ dirt trap
- Valve characteristics
- Determining the kvs value of the control valve
- Flow losses at the dirt trap depending on the filter
and its load
- Planning, execution and assessment of
maintenance and repair operations
- Reading and understanding engineering drawings
and operating instructions |
|
|
|
Features
|
|
|
* Recording characteristics of industrial shut-off
devices1
* Comparison of different fittings1
* Characteristics of a centrifugal pump |
|
|
|
| Specification |
[1] Test stand for testing various shut-off devices
[2] Installation of the test device in a test system of variable length
[3] Safety valve 1", 1.5bar
[4] Gate valve 1" / PN 20
[5] Ball valve with pneumatic drive DN 50
[6] Butterfly valve DN 50 / PN 16
[7] Sluice valve DN 50 / PN 16
[8] Electric control valve DN 50 / PN 16
[9] Dirt trap DN 50 / PN 16 with 2 filter elements
[10] Speed-controlled centrifugal pump with frequency converter
[11] Fine pressure regulator adjusts compressed air pressure
[12] Collector tray under test device
[13] Supply tank with level gauge
[14] Manometers in intake and delivery line of centrifugal pump; pressure measuring points upstream and downstream of test device for differential pressure manometer with pressure switch
[15] Digital displays for flow rate, power output, speed, position of control valve |
| Technical Data |
Centrifugal pump, 2-pole
- power consumption: 4kW
- max. flow rate: 84m³/h
- max. head: 24m
- speed range: 1450...2900rpm
Plastic tank with lid: capacity: 400L Measuring ranges
- differential pressure manometer: 0...2.5bar / 0...4bar
- manometer: 0...4bar / -1...0.6bar
- flow: 0...2000L/min
- opening range of control valve: 0...100%
- power output: 0...4000W
- speed: 0...2900rpm |
| Dimensions and Weight |
l x w x h : 2550 x 950 x 1900 mm (test stand)
l x w x h : 1000 x 750 x 870 mm (workbench)
Weight : approx. 395 kg (in total) |
| Connections |
400V, 50/60Hz, 3 phase
Compressed air supply 8bar |
| Scope of Delivery |
1 test stand with centrifugal pump
1 set of test fittings: 1 control valve, 1 dirt trap, 1 safety valve, 1 gate valve, 1 ball valve, 1 butterfly valve, 1 sluice valve
1 workbench with tools and hoses
1 set of instructional material |
| Order Details |
080.39600 RT 396 Pump and Valve Test Stand
|
|
|
|
|
