Energy Losses in Bends and Fittings (MODEL ME-FM-1290E-R)
The ARL’s 1290E accessory permits losses in different bends, a sudden contraction, sudden enlargement and a typical control valve to be demonstrated. Also Available with Digital Instrumentation.
- Circuit with four bends of different radii
- Enlargement, contraction and gate valve, plus flow-control valve
- Manometer board with 12 tubes plus differential pressure gauge
- Hand pump for pressurisation of manometers
- Quick-release fitting for easy connection to Hydraulics Bench
The 1290E equipment is mounted on a free-standing framework, which supports the test pipework and instrumentation. The following typical pipe fittings are incorporated for study: miter bend, 90° elbow, swept bends (large and small radius), sudden contraction and sudden enlargement. All are instrumented with upstream and downstream pressure tapping. These tapping are connected to a bank of 12 water manometer tubes, mounted on the framework. Pressurization of the manometers is facilitated by a hand pump. A gate valve is used to control the flow rate.
A separate gate valve is instrumented with upstream and downstream pressure tapping, which are connected to a differential gauge on the edge of the framework. The unit stands on the working top of the Hydraulics Bench, which is also used as the source of water supply.
| Item | Value |
| Pipe diameter: | 19.48mm |
| Differential pressure gauge: | 0-3 bar |
| Enlargement diameter: | 26.2mm |
| Contraction diameter: | 19.48mm |
| Fittings: | -45° mitre -elbow -short bend -large bend -enlargement -contraction |
| Manometer range: | 0-440mm |
| Number of manometer tubes: | 12 |
| Differential manometers: | 6 |
- Measuring the losses in the devices related to flow rate and calculating loss coefficients related to velocity head
- Comparing the pressure drop across each device
Hydraulics Bench
| Height: | 0.83m |
| Width: | 0.63m |
| Depth: | 0.33m |