Diesel Injector Tester Manufacturer,Supplier and Exporter in India
Product Code : EL-AELE-9394
Jlab Export is a leading Diesel Injector Tester Manufacturer,and suppliers in India
Diesel injection nozzles are set and checked on this tester before they go back into an engine. It is used to adjust the nozzle opening pressure and to run leakage, spray pattern and chatter tests. It takes nozzle sizes R, S and T and, in its basic design, carries a 0–40 MPa (0–400 bar) pressure gauge.
Specifications
| Tests | Opening pressure setting, leakage, spray pattern, chatter |
| Nozzle sizes | R, S and T |
| Pressure gauge | 0–40 MPa (0–400 bar) |
| Version | Basic design |
| Minimum order quantity | 1 unit |
| Dispatch time | Usually 7–10 working days |
| Manufacturer | JLab (Jain Laboratory Instruments Pvt Ltd), Ambala, India |
Injector Testing Practicals
Students take an injector off the Diesel Engine Test Bed, fit it to the tester and point the nozzle into a container. They raise the pressure slowly, note where the needle opens on the gauge and compare it with the maker’s figure. The opening pressure is then reset with the shims or the adjusting screw in the injector body.
Next comes the leakage test, holding pressure a little below the opening point to see whether the nozzle drips. The spray pattern and chatter tests follow. A good nozzle gives a fine, even spray and a sharp chatter. To show how the fuel pump works inside, teachers can use the Diesel Fuel Pump Actual Cut Section.
Frequently Asked Questions
What is nozzle opening pressure?
It is the fuel pressure at which the nozzle needle lifts off its seat and spraying starts. A spring inside the injector sets it, and shims or a screw adjust it. The 0–400 bar gauge shows the point at which the needle opens.
What does the chatter test show?
A healthy needle vibrates quickly on its seat as fuel passes and gives a sharp chattering sound. No chatter often points to a sticking needle or a worn seat. The sound varies with nozzle type, so compare it with a good nozzle of the same kind.
Which nozzles does it take?
It takes nozzle sizes R, S and T. Check the nozzle size of the training engines first, so the tester and the injectors match.
What test fluid should be used?
Use clean, filtered test oil or diesel fuel, never water or dirty fuel. Dirt in the tester can scratch the nozzle seat and spoil the leakage test, so keep the fluid covered between classes.
Is the spray dangerous?
Yes. At these pressures a fine diesel jet can pierce the skin. Point the nozzle into a container, keep hands out of the spray, wear eye protection and dispose of the test fluid safely.
Other Diesel Engine Equipment
- Diesel Engine Compression Tester
- Fuel Supply System Diesel CRDI Type
- Fuel Supply System of A 4 Cylinder Diesel Engine
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Last updated: 5 November 2026
