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Introduction. Aflex Hose have developed a revolutionary new design of end fitting for their PTFE lined hose products which can be easily assembled by customers on site, using a simple hydraulic press. It is called the Relink End Fitting design. The same hydraulic press can also be used to disassemble the end fitting, so the main components can be reused if required. The concept of reusable self assembly end fittings is not new, and several designs have been available for many years, but they have never been successful. This is due to the difficult and unreliable assembly methods, the high cost of components, and the lack of availability of a wide range of fitting designs. The new Relink End Fitting design overcomes these problems, and offers many other important technical advantages. Advantages of the Relink End Fitting System. -Uses Standard Aflex End Fitting Inserts. It uses Aflex Standard, off the shelf end fitting inserts, including hygienic and non-hygienic inserts * ensuring ex. stock availability of different types of fittings, and significant price savings. -Reliable Joint. Other self assembly, reusable fittings all include screwthreads, which can be over-tightened, or under-tightened, and often have low “blow-off” pressure ratings. Relink fittings always provide a positive joint which withstands 4 times the maximum working pressure of the hose. -Hygienic Design. The patented system applies radial pressure to the hose without any “screwing” of the end fitting, so a true hygienic joint can be made when used with Aflex hygienic inserts. -Tamper-Proof. Other reusable/self assembly designs, can be accidentally loosened or disassembled manually or with a spanner after connection in the application. The Relink End Fitting can only be dissassembled using the Relink Hydraulic Press, after disconnection from the application. * MWP are reduced when using non-hygienic inserts* 

| Assembly. The components are assembled on to the hose and inserted in to the Relink Hydraulic Press as shown. The joint is then made by compressing the end fitting using the hydraulic press, which pushes the Shell into the Compression Sleeve. The Shell is slotted, to allow it to be collapsed inwards on to the hose when the Sleeve is pushed over it. This compresses the hose radially inwards against the End Fitting Insert to form a pressure tight, leak proof joint. The Shell is also independently locked on to the Insert by an internal shoulder, which is pressed in to engage an external shoulder on the Insert. The joint can be disassembled by cutting the end fitting assembly away from the hose and pushing the end fitting out of the compression sleeve using the Relink extractor tool. Only the shell is not reusable. Specifications. The usage limitations are as given for the hoses in the relevant hose product literature on the Aflex Hose website. These must be reviewed together with this leaflet to determine suitability in the application. For Pharmaline Hose, however, the Maximum Working Pressure of the Relink fittings is as stated in the table below. Hose Types and Sizes for Relink End Fittings. Compression Sleeves and Shells in Stainless Steel are available for PHARMALINE and PHARMALEX Hose Types under the Part Numbers listed below. Please note that the Relink fittings for Pharmaline are also usable with Pharmalex Hose. |
Nominal Hose Size | Hose Bore | Pharmaline & Pharmalex | Maximum Working Pressure | Burst Pressure | | Pharmaline | Pharmalex | Pharmaline | Pharmalex | | in | mm | in | mm | Relink Shell | Relink Sleeve | PSI | Bar | PSI | Bar | PSI | Bar | PSI | Bar | | 1/4" | 6.40 | 0.270 | 6.80 | 40-220-04-04-03 | 40-221-04-04-02 | 536 | 37 | 101 | 7.0 | 2175 | 150 | 406 | 28 | | 3/8" | 9.50 | 0.375 | 9.50 | 40-220-06-06-03 | 40-221-06-06-02 | 464 | 32 | 87 | 6.0 | 1885 | 130 | 348 | 24 | | 1/2" | 12.70 | 0.500 | 12.70 | 40-220-08-08-03 | 40-221-08-08-02 | 435 | 30 | 79 | 5.5 | 1740 | 120 | 319 | 22 | | 5/8" | 16.00 | 0.625 | 16.01 | 40-220-10-10-03 | 40-221-10-10-02 | 304 | 21 | 72 | 5.0 | 1232 | 85 | 290 | 20 | | 3/4" | 19.00 | 0.750 | 19.00 | 40-220-12-12-03 | 40-221-12-12-02 | 290 | 20 | 58 | 4.0 | 1160 | 80 | 232 | 16 | | 1" | 25.40 | 1.000 | 25.40 | 40-220-16-16-03 | 40-221-16-16-02 | 232 | 16 | 50 | 3.5 | 928 | 64 | 203 | 14 |
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