Capillary Tube Gauge Manufacturer,Supplier and Exporter in India
Product Code : EL-AELE-12913
Jlab Export is a leading Capillary Tube Gauge Manufacturer,and suppliers in India
A capillary tube gauge tells you the bore of the fine copper capillary that meters refrigerant in a refrigerator or small air conditioner. This gauge checks bores from 0.026 in to 0.09 in with stainless steel wire plugs, each marked with an etched black number. A file on the gauge cuts and opens the tube before it is measured.
Specifications
| Measuring range | 0.026 in to 0.09 in bore |
| Gauging plugs | Stainless steel wire |
| Markings | Etched numbers in black |
| File | Built in, for cutting and opening capillary tube |
| Minimum order quantity | 10 units |
| Dispatch time | Usually 4–6 working days |
| Manufacturer | JLab (Jain Laboratory Instruments Pvt Ltd), Ambala, India |
Capillary Tube Practicals in the RAC Lab
Before replacing a capillary on a refrigerator, students learn to identify the old one. They score a sample with the gauge’s file, snap it, and push the wire plugs into the open end until the biggest one that fits gives the bore. The same check is made on new Capillary Tube from a coil, so the replacement matches the original bore.
Students then cut the new length with a Capillary Tube Cutter and braze it into the outlet of a Filter Drier. Teachers can show what happens when a bore is crushed by side cutters: the plugs no longer enter, and the tube would choke the flow.
Frequently Asked Questions
How do I find the bore of a capillary tube?
Cut the end square and open it, then try the wire plugs from small to large. The biggest plug that slides in without force gives the inside diameter. Read the size from the etched number beside that plug.
Why does the capillary bore matter?
The capillary tube sets how much refrigerant reaches the evaporator. A bigger bore overfeeds it and a smaller one starves it, so a replacement should match both the bore and the length of the old tube.
What is the file on the gauge for?
It cuts and opens capillary tube. Scoring the tube with the file and snapping it leaves the bore round and open, while pliers or side cutters squeeze the end shut.
What bore sizes can it check?
Bores from 0.026 in to 0.09 in, the small sizes found on domestic refrigerators, freezers and water coolers. The numbers are etched in black so they stay readable on a workshop bench.
How should the gauge be kept?
Wipe the wire plugs clean after use and keep them straight. A bent or dirty plug will not enter a bore it should fit, and that gives a false, smaller reading.
Other Refrigeration Service Tools
- Pinch-Off Plier
- Piercing Plier
- Tube Cutter (mini cutter for copper tube)
- Inspection Mirror
For a quote, use Add To Cart or send us a message through the contact page.
Last updated: 5 November 2026
