Flow Through Orifice and Mouthpiece Manufacturer,Supplier and Exporter in India
Product Code : EL-DSO-10352
Jlab Export is a leading Flow Through Orifice and Mouthpiece Manufacturer,and suppliers in India
Flow Through Orifice and Mouthpiece (code EL-DSO-10352) is a fluid mechanics set-up for determining the coefficients of discharge, velocity and contraction of orifices and mouthpieces. The bench has its own pump, constant head tank, measuring tank and sump, with the tanks made of SS 304 sheet. It is made by Jain Laboratory Instruments Pvt Ltd (JLab) at its works in Ambala, India.
Specifications
| Parameter | Detail |
|---|---|
| Experiments | Coefficient of discharge of different orifices and mouthpieces; coefficients of velocity and contraction |
| Orifices | Acrylic, 2: 10 mm and 15 mm diameter |
| Mouthpieces | Acrylic, 8 mm diameter: L/D = 1, L/D = 2.5 and L/D = 4 |
| Pointer gauge | To measure the X-Y co-ordinates of the jet |
| Constant head tank | 300 mm x 300 mm x 450 mm |
| Measuring tank | 300 mm x 300 mm x 300 mm |
| Sump tank | 600 mm x 300 mm x 300 mm |
| Tank material | SS 304 sheet |
| Piping and fittings | GI |
| Valves | 2 for drain, 1 for water control, 1 for bypass |
| Stopwatch | Electronic |
| Pump | 0.5 HP, single phase, 220 V AC +10% |
| Power requirement | 220 V AC +10%, 50 Hz |
| Supplied with | Experimental manual |
| Quality check | Each set-up is visually inspected before dispatch |
| Pack quantity | Each (sold individually) |
| Minimum order quantity | 10 units |
| Dispatch time | Usually 7–10 working days |
| Product code | EL-DSO-10352 |
| Manufacturer | Jain Laboratory Instruments Pvt Ltd (JLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
How Does It Compare with the Orifice and Mouthpieces Apparatus?
| Set-up | Orifices | Mouthpieces | Head tank |
|---|---|---|---|
| This set-up (EL-DSO-10352) | Acrylic, 10 mm and 15 mm | Acrylic, 8 mm, L/D = 1, 2.5 and 4 | Constant head tank 300 x 300 x 450 mm |
| Orifice and Mouthpieces Apparatus | 8 mm and 10 mm | L/D = 4, L/D = 1, Borda’s mouthpiece and convergent mouthpiece | Supply tank 0.4 x 0.3 x 0.5 m high, head set by a bypass valve |
Both measure the jet with an X-Y gauge to find the coefficient of velocity. Choose this set-up for three mouthpieces of different length-to-diameter ratio and orifices of 10 and 15 mm; the Orifice and Mouthpieces Apparatus has 8 and 10 mm orifices and includes Borda’s and convergent mouthpieces.
What Is the Flow Through Orifice and Mouthpiece Set-up Used For?
Water leaving an orifice contracts to a narrower jet just downstream (the vena contracta) and loses a little velocity to friction, so the actual discharge is less than the ideal a√(2gH). The ratio of the two is the coefficient of discharge Cd; the coefficient of velocity Cv is found from the jet’s trajectory as x/√(4yH), using the co-ordinates read on the pointer gauge; and the coefficient of contraction follows from Cc = Cd/Cv. Repeating the tests with mouthpieces of increasing length shows how a jet that has contracted at the entry expands again to fill the tube. These are standard fluid mechanics practicals in civil and mechanical engineering degree and diploma courses.
What to Specify When Ordering
- Number of set-ups for the lab.
- Electrical supply — the 0.5 HP pump needs single-phase 220 V AC, 50 Hz.
- Other fluid mechanics benches, such as the venturimeter or Pitot tube set-ups linked below, which are separate items.
Frequently Asked Questions
Which orifices and mouthpieces are provided?
Two acrylic orifices of 10 mm and 15 mm diameter, and three acrylic mouthpieces of 8 mm diameter with length-to-diameter ratios of 1, 2.5 and 4.
Why is a constant head tank used?
Holding the water level steady keeps the head H over the orifice constant, so the discharge stays steady while it is measured and the coefficients can be calculated from a single known head.
What details does an export quotation need?
The number of set-ups, the destination country and port or city, the delivery terms (for example FOB or CIF), any packing or labelling instructions and the tender reference if there is one.
Who manufactures this set-up?
Jain Laboratory Instruments Pvt Ltd, trading as JLab, makes it at its works in Ambala, Haryana, India, and supplies it as the manufacturer.
OEM Manufacturer
JLab is the trading name of Jain Laboratory Instruments Pvt Ltd, an Indian manufacturer of fluid mechanics and engineering laboratory equipment, incorporated in 2017 and based on Hargolal Road, Ambala, Haryana. This set-up is fabricated in JLab’s own works rather than bought in, so engineering colleges, polytechnics, dealers and importers purchase it factory-direct, every unit is visually inspected before dispatch, and repeat orders are handled by the maker. The company’s GSTIN is 06AADCJ9848D1ZE and its Legal Entity Identifier is 549300DTGS77DGYD6N03. JLab exports worldwide and ships to buyers in every region — for example Mongolia in East Asia, Jordan in the Middle East, Lesotho in Southern Africa, Kazakhstan in Central Asia and Germany in Western Europe. Tender buyers can see the JLab lab tenders page.
Related Fluid Mechanics Equipment
- Orifice and Mouthpieces Apparatus — the 8 and 10 mm orifice apparatus in the comparison above.
- Venturimeter Test Rig — coefficient of discharge of a clear acrylic venturimeter.
- Pitot Tube Setup — Pitot tube coefficient and centre-line velocity in a pipe.
- Losses Due to Friction In Pipe Line — friction factor for four pipe materials.
Browse the Fluid Mechanics and Hydraulics Lab Equipment range for more benches.
Request a Quote
Send your enquiry with the Add To Cart button or through the contact page, stating the number of set-ups and the delivery city and country.
Last updated: 22 October 2026
