Parker will discontinue 30 of its legacy hoses by next June. Of those 30 hoses 22 will become obsolete at the end of 2018, and the remaining eight will go out of production June 28, 2019. Look for the list of obsoleted hose series and suggested replacements later in this article. The GlobalCore family of hoses, of which there are six, will replace the 30 outgoing hoses. Additionally, the six hoses in the GlobalCore series use only two series of fittings – 43 and 77.
The change was a long time coming, and changing to GlobalCore should be relatively painless for users in the short run. In the long run, it will be a blessing. Here is the scoop on why you should have switched to GlobalCore a long time ago:
The first reason for the change is a simplification of Parker’s hose offering, and controlling the cost. Generally speaking most manufacturers offer too many hoses that perform basically the same functions. Typically, several hoses made by the same manufacturer have the same or similar pressure ratings, construction, chemical compatibility, minimum bend radius, etc. The availability of many hoses with only inconsequential differences unnecessarily complicates the hose selection process for most users. Additionally, when the OEMs manufacture multiple hose series for the same application the shorter production runs inevitably drive up the product cost.
The second reason for Parker’s move toward the GlobalCore hose family has to do with an industry shift from SAE specifications to ISO specifications . All GlobalCore hoses are engineered to ISO specs.
So what is the big deal/difference between the SAE and ISO specs? The SAE J517 specifications for hoses have been around for decades. They establish a minimum pressure rating for each hose size and describe minimum hose construction requirements. In short, SAE specs revolve around hose construction.
In contrast, ISO 18752 specs center around the design practices of engineers who typically design hydraulic systems. They center around performance and pressure rating. The ISO Standard has nine pressure classes which classify hoses by maximum working pressure rating. The ISO Standard also has four grades which classify hoses by resistance to impulse pressure. Each grade requires a specific number of impulse cycles at a certain temperature, and the impulse pressure to meet a certain standard. The grade is then classified by the outside diameter (O.D.) of the hose into standard types (AS, BS, CS) or compact types (AC, BC, CC, DC). Compact types have a smaller O.D. and bend radius than the standard types. Here is a great blog, explaining the differences between SAE and ISO specs, as well as the advantages of ISO specs.
The third reason (perhaps the most important) is the awesome durability and ease of installation of all GlobalCore hoses.
The hoses feature an advanced inner tube for better fluid compatibility, as well as higher working temperature rating and superior flexibility. But not only are they more flexible (1/2 the SAE minimum bend radius), they also require less force to bend, weigh less, and have a smaller O.D. – all features which make it easier to route and install the hose in tight quarters.
To make things as simple as possible, GlobalCore hoses are color-coded by pressure rating:
- 1,000 PSI – Green
- 3,000 PSI – White
- 4,000 PSI – Grey
- 5,000 PSI – Red
- 6,000 PSI – Yellow
And of course, none of the GlobalCore hoses require skiving. If you need a refresher on what skiving is all about please read this blog on the advantages of using no-skive hydraulic hoses.