Issue link: https://onenorgren.uberflip.com/i/555305
5 FITTINGS For further information www.norgren.com FIT-54 Valve Thread Hose length Internal Hose Diameter (inch) Model Size Feet 0.125 0.188 0.215 0.250 0.313 0.370 0.470 0.500 0.590 0.750 1.000 1.250 1.500 T60*2890 1/4 12 124 64 29 16 11 8 8 8 7 7 7 7 T60*2890 1/4 25 126 52 25 14 9 9 8 7 7 7 7 T60*2890 1/4 50 244 97 42 21 11 10 8 8 7 7 7 T60*2890 1/4 100 187 76 35 15 13 10 8 7 7 7 T60*2891 1/4 12 70 31 17 10 9 8 7 7 7 7 T60*2891 1/4 25 137 57 27 13 11 9 8 7 7 7 T60*2891 1/4 50 107 47 19 15 11 8 7 7 7 T60*2891 1/4 100 207 87 30 23 14 9 8 7 7 T60*3890 3/8 12 125 52 25 12 11 9 8 7 7 7 T60*3890 3/8 25 102 45 18 15 10 8 7 7 7 T60*3890 3/8 50 196 82 29 22 14 9 8 7 7 T60*3890 3/8 100 157 50 38 20 11 8 7 7 T60*3891 3/8 12 132 57 21 17 11 8 8 7 7 T60*3891 3/8 25 111 37 28 16 10 8 7 7 T60*3891 3/8 50 215 67 49 25 12 8 8 7 T60*3891 3/8 100 126 91 42 17 9 8 7 T60*4890 1/2 12 132 57 21 17 11 8 8 7 7 T60*4890 1/2 25 111 37 28 16 10 8 7 7 T60*4890 1/2 50 215 67 49 25 12 8 8 7 T60*4890 1/2 100 126 91 42 17 9 8 7 T60*4891 1/2 12 119 39 30 17 10 8 7 7 T60*4891 1/2 25 74 54 27 13 8 8 7 T60*4891 1/2 50 141 102 46 18 10 8 8 T60*4891 1/2 100 196 85 29 12 9 8 T60*6890 3/4 12 119 39 30 17 10 8 7 7 T60*6890 3/4 25 74 54 27 13 8 8 7 T60*6890 3/4 50 141 102 46 18 10 8 8 T60*6890 3/4 100 196 85 29 12 9 8 T60*6891 3/4 12 96 70 33 15 9 8 7 T60*6891 3/4 25 193 139 62 23 11 8 8 T60*6891 3/4 50 116 38 14 9 8 T60*6891 3/4 100 224 69 20 11 9 T60*8890 1 12 123 89 41 17 9 8 7 T60*8890 1 25 178 78 27 12 9 8 T60*8890 1 50 148 47 16 10 8 T60*8890 1 100 88 24 13 9 T60*8891 1 12 231 166 73 26 11 8 8 T60*8891 1 25 144 46 16 10 8 T60*8891 1 50 85 24 12 9 T60*8891 1 100 163 41 17 11 T60*B890 1-1/2 12 147 47 16 10 8 T60*B890 1-1/2 25 90 25 13 9 T60*B890 1-1/2 50 173 43 18 11 T60*B890 1-1/2 100 78 29 16 T60*B891 1-1/2 12 89 25 13 9 T60*B891 1-1/2 25 179 44 18 12 T60*B891 1-1/2 50 81 30 16 T60*B891 1-1/2 100 154 52 24 How to select an air fuse a) The port size of the air fuse should be nominally equal to that of the supply lines e.g. a 1⁄2" (12,7mm) air fuse should be used with a 1⁄2" (12,7mm) ID hose. b) Always select the high flow model (91) if there is sufficient system pressure for the length of hose to be protected. See tables hose length vs minimum supply pressure. c) If there is insufficient system pressure, or long hose lengths are to be protected, use model 90. d) After installation always test each valve for proper function. See section how to check an air fuse below. e) The pneumatic system must be capable of delivering the flow required to activate the air fuse. f) For use with spring coils consult table. See table flow vs pressure supply. How to check an air fuse * Install air fuse following the instructions supplied * Connect tool or complete circuit to the air line * Switch on operation to ensure a complete cycle is performed * If tool or complete circuit starts and runs satisfactorily, stop operation and drain air line. Disconnect hose from tool or circuit and secure hose end. Turn on air supply progressively (to avoid decompression effect). Prior to fully reaching operation conditions, the valve should suddenly activate and cut off the flow. A slight air flow will remain as part of the automatic re-set function. If the air fuse is not activated the unit should be disconnected and the lower flow range air fuse should be used. Coiled hose selection table Selection procedure for coiled hose: Chose the thread size of your hose, the hose internal diameter in inches and the hose length in feet. The minimum supply pressure in psi is shown in the table below and the appropriate air fuse is shown in the left column. The "*" in the middle of the part number represents the thread type — put an "A" for NPT and a "C" for ISO G threads. If no value is shown, it may not be possible to protect your hose with an air fuse. If in doubt, consult a Norgren distributor or Norgren. Air fuses In-line excess flow shut-off valves 1/4 ... 1-1/2 NPT