When you have a worn hydraulic hose fitting, you’ll have to identify exactly which type you have so you know what to order from your supplier. If you’ve written all these connectors down somewhere, you’ll be ahead of the game, and won’t have any difficulty. If you aren’t really sure what type of connector you need, you’ll just have to determine it the old-fashioned way, and that involves some observation and some measuring.
WHY ARE THERE SO MANY DIFFERENT TYPES OF HYDRAULIC FITTINGS?While there might be hundreds if not thousands of hydraulic fittings and connectors, they all boil down to three basic types. These three types are either metal seal, soft seal, or tapered thread connectors. No matter which of these types of fittings yours belongs to, it will be required to satisfy two conditions: it must seal and it must hold.
WHAT ARE THE MOST COMMON HYDRAULIC CONNECTIONS?
Given the fact that industrial equipment and machines are designed and produced by manufacturers all over the world, it’s not surprising that there are countless different types of fittings and adapters. This enormous array of fittings makes use of a number of different sealing methods and thread forms, and while many of these would appear to look the same or at least very similar, it’s not that difficult to accurately identify exactly which type it really is. The most common types of fittings are shown below, and these may be used in particular countries of the world, or by manufacturers everywhere on an individual continent.
37 degree flare
30 degree flare (metric)
45 degree flare
24 degree flareless (SAE)
24 degree flareless (DIN)
30 degree flare (BSPP)
O-Ring Face Seal (ORFS)
60 degree NPSM Swivel
60 degree Cone (BSPP)
60 degree Cone (Metric)
To determine the type you’re actually working with, there’s a simple four-step process involved. First of all, you need to figure out whether it’s a permanent or reusable type, and the permanent fittings will be those which are crimped. These are easier and quicker to attach than reusable fittings are, and that makes them ideal for applications in the fluid power industry.
Next you need to identify the port connections before you attempt to install a hose or tube assembly, and those port connections are the ones listed above. Then you need to identify the particular sealing method, and this will generally be an automated angle, tapered threads, or an O-ring. After having determined the sealing method, you have to use a seat gauge in order to determine the seat angle.
The last thing you need to do is measure the thread, and this will call for the use of calipers. By determining the number of threads per inch on both the outside diameter and the inside diameter, you’ll be able to get an accurate reading of the thread size. Now that you know exactly which kind you’re working with, it will be fairly easy for you to call a supplier and order that precise connector.
How To Identify The Hydraulic Hose Fitting You Need High Quality Fittings And Connections
HIGH-QUALITY FITTINGS AND CONNECTIONS FROM SAPPHIRE HYDRAULICS
If you’re still not sure of which kind of fittings and connections you need for your equipment, we can help you. Contact us so we can provide you with the precise fitting for your needs. Keep us in mind for any customized equipment you might need to have designed and manufactured, as well as whenever you might need repairs to your hydraulic hoses or hydraulic cylinders.