Miniaturized components like micro hoses and fittings
+39 02 98260787
8:00 – 12:00 | 13:30 – 17:30
S.S. Emilia, Km. 309,7
26858 Sordio (LO)
Miniaturized components like micro hoses and fittings
+39 02 98260787
8:00 – 12:00 | 13:30 – 17:30
S.S. Emilia, Km. 309,7
26858 Sordio (LO)
info@boraflex.it
Employment
The control system is used to realize monitoring circuits, to connect comparison and measurement instruments (pressure gauges, pressure switches, pressure transducers).
Due to capillary effect, the flexible hose attenuates the pressure peaks and avoids the transmission of vibrations to the instruments.
By the micro flexible hoses it’s possible to establish connections in extremely limited spaces (for example, in the power units) and the installation becomes simple and rapid.
System consists in a wide range of miniaturised fitting suitable also into micro-circuits, to realize the main connections of the cylinders up to a diameter of 40 mm.
In the permanent hydraulic systems (yard machinery, foundry machinery, machine tools) it is used to check the pressure into different points of the circuit and the monitoring fittings are installed near to the pressure switch, near to the electro valves and after the relief valves for the regulation of the pressure.
The test couplings are fitted on those points of the circuit in which is not justified the use of a fixed pressure gauge.
The test couplings are fitted on those points of the circuit in which is not justified the use of a fixed pressure gauge.
They could be also used to bleed the circuit, with no leakage of oil. This operation could be made connecting one end of the flexible micro hose to the tank or to drain pipeline, and the other end to the check couplings positioned on a high pressure line or connected directly to the cylinder.
By the monitoring fittings could be drawn sample of fluid to analyse the level of contamination, etc.
Another possible application is monitoring the pressure occasionally on the systems which is not possible a fixed installation of the pressure gauge (special machinery, trucks, tractors, etc.).
The installation of the control system is by now essential to all modern hydraulic circuits.
Hoses installation
When installing the assembled hoses please follow below advices:
Avoid twisting the assembly. (Fig. 1-2)
If there are moving parts which can cause twisting, take care to avoid this by a correct installation. (Fig. 3-4)
Avoid tight bend radii by using proper fittings. (Fig. 5-6)
Do not begin to bend closer than 1,5 times of the external diameter of the hose, starting from the end of the ferrule. (Fig. 7-8)
Measurement and tolerance of assembled hoses
The length of the hoses is gauged in conformity with the DIN 20066 rule.
In this rule the tolerance of the length are also indicated.
| TOLLERANZE LUNGHEZZE TUBI RACCORDATI NORMA DIN 20066 | |
|---|---|
| Lunghezza tubo raccordato | Da Ø 3/16″ a ø 1″ |
| Da 0 a 630 mm | +7 / -3 mm |
| Da 630 a 1250 mm | +12 / -4 m |
| Da 1250 a 2500 mm | +20 / -6 mm |
| Da 2500 a 8000 mm | -3 |
| Oltre 8000 mm | -3 |
Thread identification
With the gauge measure the threads diameter (ø male external, ø female internal).
With a thread pitch gauge determine the number of the threads per inch or the distance between threads in metric connections.
| Maschio Ø e | mm | Femmina Ø i |
|---|---|---|
| 8.6 | G1/8”-28 | |
| 1/8”-27NPT G1/8”-28 M10x1 | 9.5 9.7 9.8 | |
| 9.9 10.5 | 7/16”-20UNF M12x1,5 |
|
| 7/16”-20UNF | 11.2 | |
| 11.5 11.6 | 1/2”-20UNF G1/4”-19 |
|
| M12x1,5 1/4”-18NPT | 12 12.5 | |
| 12.5 | M14x1,5 | |
| 1/2”-20UNF | 12.6 | |
| 12.9 | 9/16”-18UNF | |
| G1/4”-19 M14x1,5 9/16”-18UNF | 13.1 14 14.1 |
| Maschio Ø e | mm | Femmina Ø i |
|---|---|---|
| 14.2 14.5 15.1 | 5/8”-18UNF M16x1,5 G3/8”-19 |
|
| 5/8”-18UNF M16x1,5 3/8”-18NPT | 15.7 16 15.9 | |
| 16.5 | M18x1,5 | |
| G3/8”-19 | 16.6 | |
| 17.5 | 3/4”-16UNF | |
| M18x1,5 | 18 | |
| 18.5 18.6 | M20x1,5 G1/2”-14 |
|
| 3/4”16UNF M20x1,5 | 18.9 20 | |
| 20.5 20.5 | 7/8”-14UNF M22x1,5 |
|
| G1/2”-14 | 20.9 |
