What do the numbers on hydraulic fittings mean?
Simply put, a dash size refers to an I.D. of a hydraulic hose or fitting in 1/16″ increments. For example, -6 hose would indicate a hose with I.D. of 6/16″ – or 3/8″. Hoses are measured by inside diameter, unlike tubes which are measured by outside diameter.
How do you identify hydraulic fittings?
Four Steps to Thread Identification
- Step 1 – Determine if the thread is tapered or parallel. NPT/NPTF and BSPT are tapered threads while UN/UNF and BSPP are parallel.
- Step 2 – Determine the pitch.
- Step 3 – Determine the size.
- Step 4 – Designate the thread.
Are hydraulic fittings metric or standard?
Metric thread hydraulic fittings is most popular type of fluid connectors in the worldwides.
How do you read fittings?
Reading a Fitting
- Elbows are fairly simple; they are full size or reducing.
- If the inlet, outlet, and branch sizes are of the same diameter, you need only read the one size.
- If an elbow has two different diameters, it’s called a “reducing elbow.” Read the larger diameter socket first, then the smaller diameter socket.
What is the difference between JIC and SAE fittings?
JIC fittings are dimensionally identical to AN (Army-Navy) fittings, but are produced to less exacting tolerances and are generally less costly. SAE 45-degree flare fittings are similar in appearance, but are not interchangeable, though dash sizes 2, 3, 4, 5, 8, 10, 14, and 16 share the same thread size.
What size is JIC?
JIC 37° Flare (SAE J514)
| Inch size | Dash size | Male Thread O.D. (in) |
|---|---|---|
| 1⁄2 | -8 | 3⁄4 |
| 5⁄8 | -10 | 7⁄8 |
| 3⁄4 | -12 | 11⁄16 |
| 7⁄8 | -14 | 1 3⁄16 |
Is JIC better than NPT?
However, their flare angle differs. JIC fittings come with a 37O flare angle, while the NPT fittings rely on just their tapered threads for sealing. As a result, JIC fittings offer better sealing capabilities and can withstand higher working pressures.
Are JIC and NPT compatible?
JIC fittings is absolute different seal, not interchangeable. JIC hydraulic fittings is used in high pressure system, NPT fittings is used in low-pressure system. NPT pipe threads have always been popular, as leaks can be fixed by simply tightening the fitting.
What is 6 an fitting?
In bolts the number refers to the diameter of the bolt whereas in a fitting it refers to the OD of the tube and thereby have different threads. For example, AN6 bolt has a 3⁄8-24 thread whereas an -6 AN fitting has a 9⁄16-18 thread.