Preden izberete hidravlični priključek, morate najprej ugotoviti, ali se njegovi navoji ujemajo s cevjo, ki ste jo izbrali. Merjenje in prepoznavanje fitingov je enostavno, vendar morate imeti ustrezna orodja. Ta orodja vključujejo ID/OD čeljusti in merilnike navoja.
Fiture 1
1)Using the thread pitch gauge, as seen in Figure 1, simply place the gauge teeth on the threads until a tight fit is found. Ensure that there is no gap between the teeth of the gauge and the fitting. If the fitting is not new or worn, you may have difficulty finding a match so it's best always use new fittings. Fitting manufacturers provide thread identification guides either in brochures or on their websites, so you simply need to match the thread measurement to the relevant charts.
To measure the thread's outer diameter (or male thread), place the ID/OD caliper around the fitting threads for a snug fit, as shown in Figure 2. For the inner diameter (or female thread), insert the caliper into the fitting for the correct measurement and match to the manufacturer's data charts.
Vedeti morate tudi, ali je vaš nastavek stožčast ali vzporeden, torej pod kotom ali meri enako širino od enega konca navoja do drugega.
Razumevanje nekaterih najpogostejših tipov konektorjev bo pomagalo pri prepoznavanju in merjenju v vodnikih za identifikacijo navojev. NPTF (National Pipe Tapered Fuel) konektorji se uporabljajo v aplikacijah za tekočinsko napajanje, čeprav niso priporočljivi. Druge pogoste izvedbe so NPT, SAE J514 JIC/37 stopinj, SAE J1926 O-obroč z ravnim navojem, SAE J512 45 stopinj, SAE J1453 O- čelno tesnilo, konektorji ISO in DIN, med drugim .
