This is a comprehensive unit for studying the friction losses in pipes, pipe fittings and valves at various flow rates.

All friction loss components are arranged on a water proof panel which is attached to a floor standing steel frame. The apparatus is to be used with a Hydraulics Bench (separately supplied) or an outside water supply.

The loss is measured by differential pressure using manometers and differential pressure gauge. Pressure tapping is by small ball valves with quick connection. All pressure taps are connected by flexible hoses to a set of specially arranged manifolds such that differential pressure across any component can be measured simply by opening valves without removing the hoses.

The unit is on a steel frame with adjustable footings.

Instruction manual is also included.

  • Friction losses in straight pipes at various flow rates.
  • Friction losses in pipe fittings, valves, sudden expansion and contraction at various flow rates.
Friction loss components:  
- Linear pipes, PVC 3 different diameters.
- Short radius bends 2 ea.
- Regular elbow 1 ea.
- 45o elbows 2 ea.
- Valves Gate, globe, ball, and check
- Other components Tee section
  Sudden expansion
  Sudden contraction


Measuring instruments
- Water meter and stop watch.
- Water manometer with hand air pump
- Differential pressure gauge
Part No. Part Name
HB100N or HB100 Hydraulics Bench Neo or Hydraulics Bench (required accessory)
HF 011 Variable area flow meter
HF 020 Polyethylene Polybutylene or ABS pipe
HF 021 Galvanized steel pipe.
HF 022 Artificially roughened pipe.
HF 023 Annular pipe.
HF 024 Flexible hose.
HF 033A Differential pressure digital display of differential pressure gauge.
HF 033B

Mercury manometer instead of differential pressure gauge.

Note: Due to transport laws mercury cannot be supplied. Buyer must source it locally.

HF 033C Portable differential pressure meter instead of differential pressure gauge
HF 034A Portable differential pressure meter instead of water manometer
HF 135-050

Computer Interface

Sensors with computer interface unit for key data acquisition instead of analog data measuring instruments. This includes computer interface unit HB100N or HB100 and differential pressure sensors (high and low ranges).

Other pipes and fittings can be supplied on request.
Other optional equipment please contact manufacturer (essom@essom.com)


Net (unassembled) Shipping Dimensions WxLxH 35 x 245 x 105 cm.
Net Weight Approx. 90 kg.