Industrial machines and equipment are designed and manufactured in every corner of the world. The hydraulic systems alone use countless different types of fittings and adapters with different sealing methods and thread forms. While the sealing method can often be distinguished by appearance, thread forms all seem to look the same, making it difficult and time-consuming to identify them when equipment modifications or repairs are needed.
The one on the pump did not come out in less than 4teen pieces, and the one in the ram is brand new and I do not want to bugger it up for fear of having to cough up another 40 bucks to replace that coupler should I not be able to source the replacement.but, yeah, that thought had crossed my mind.
- NFF495RO - Replacement Buna-N O-Ring For NFE495 Flushface Coupler ISO 16028 interchange are high pressure, no-spill quick connects that are becoming increasingly popular on OEM equipment. The flush face valving in both halves allow for minimal fluid loss and air inclusion; the flush face is also ideal in dirty environments as it can be easily wiped clean.
- If you know how to measure them correctly, then they are your best best for any o-ring, in any size, and in any type of compound. The Viton o-rings will have the number and then a -75 after it. The -75 means its a Viton your getting.
Identifying a fitting can be easily done, however, through the process of elimination after uninstalling the fitting. Tapered Threads: These types of fittings have two types of threads: male or female. Male fittings feature their threads on the outside and female fittings have threads on the inside.
When the male and female counterparts are threaded together, the tapered threads deform which applies pressure on the couplings ultimately making a tight seal. Tapered threads can be imprecise but never use Teflon tape to ensure the seal. Teflon tape is often banned in hydraulic and pneumatic systems because of its tendency to shred and contaminate sensitive areas. Its lubricity has also been known to induce over-torquing.Then, look at the fitting design. With the caliper, measure the thread diameter of the largest point (Outside Diameter (O.D.) of male threads; Inside Diameter (I.D.) of female threads). Using the thread gauge, determine the number of threads per inch.
Comparison of gauge and coupling threads against a lighted background will ensure an accurate reading.Parker’s Hose Products Division has shadow images to easily determine thread, cone and hex size. Click on these images to print out a useful guide to assist in identifying hydraulic fittings. After you have determined the hydraulic hose fitting you need to replace, Parker Hannifin is an ideal supplier of choice.
Parker offers the largest selection of hydraulic hoses plus more hydraulic fitting sizes than any other manufacturer. Offers steel, brass, and stainless steel fittings from 3/16' to 3'.
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Styles include O-ring face seal, flare, male pipe, metric designs and much more. Are also available in various configurations including NPTF, JIC, SAE, GAZ, ISO, DIN, JIS and BSP. Many manufacturers offer fitting wall charts as well to assist in the identification process.