3 GC Series Rotary Gear Flow Dividers Cont. Diff. Pressure Between Inlet/Outlet PSI BAR 1800 124 1600 110 1300 90 1200 83 Maxium Outlet Pressure Any Section PSI BAR 3500 241 NOTE: Flows listed above are per section. For European Style GC Flow Dividers, all inlet and outlet ports are 1/2-14 BSPP. * Stock units available in two and four section versions, see page 9. MAXIMUM inlet pressure 3000 psi (207 bar) • MAXIMUM outlet pressure 3500 psi (241 bar). For 3 section flow dividers or flow dividers with unequal sections, contact the factory. Recommended operating range 2000 rpm to 3500 rpm. * * * * Order Code 06 08 12 16 20 24 28 32 Minimum Maximum Flow/Sec Flow/Sec GPM L/M GPM L/M 0.8 3.0 1.7 6.4 1.2 4.5 2.5 9.5 1.7 6.4 4.5 13.2 2.5 9.5 5.0 18.9 3.0 11.4 6.0 22.7 3.5 13.2 7.0 26.5 4.0 15.1 8.0 30.3 4.5 17.0 9.0 34.1 SAE Ports Inlet Outlet 9/16-18 9/16-18 3/4-16 3/4-16 3/4-16 9/16-18 7/8-14 7/8-14 7/8-14 7/8-14 7/8-14 7/8-14 7/8-14 7/8-14 7/8-14 7/8-14 Displacement In.3 Cm.3 .097 1.59 .129 2.12 .194 3.18 .258 4.24 .323 5.30 .388 6.36 .453 7.42 .517 8.48 Gear Face Width 3/16 1/4 3/8 1/2 5/8 3/4 7/8 1 The curve on the left and the chart above can be useful in selecting the proper size flow divider sections. The curve shows speed vs. flow per section. For equal sized sections: Assume four section dividers with a total flow of 12 GPM (45.4 L/M) in and 3 GPM (11.4 L/M) per section out. From the chart, an order code 12 or 20 would be suitable for this flow. However, the nearer the mid-range, the better the efficiency. From the curve, order code 16 crosses the 3 GPM (11.4 L/M) line at 2750 RPM. The best selection is the order code 16 gear section. For proportional flow, the curve is used as follows: Assume a four section divider with an input flow of 19 GPM (71.9 L/M) and an outlet flow of 7 GPM (26.5 L/M) , 5 GPM (18.9 L/M), 4 GPM (15.1 L/M), and 3 GPM (11.4 L/M). With a straight edge on the 3000 RPM line, proper flow for 7 GPM (26.5 L/M) is given with an order code 32 gear section, 5 GPM (18.9 L/M) with an order code 24 gear section, 4 GPM (15.1 L/M) with an order code 20 gear section and 3 GPM (11.4 L/M) with an order code 16 gear section. The chart above also shows the allowable differential pressures. The differential relief valve setting is determined by the maximum pressure needed by the circuit minus the inlet pressure without exceeding the allowable differential pressure. Either the continuous or intermittent differential pressures are used, depending on the circuit requirement. The differential relief valve is adjustable through a range of 500 - 1000 PSI (34.5 - 69 BAR). Our standard setting for the differential relief valves is 750 PSI (51.7 BAR). GPM 10 9 8 7 6 5 4 3 2 1 0 L/MIN 37.85 34.07 30.28 26.50 22.71 18.93 15.14 11.36 7.35 3.79 8.48 cc (.517 in. 3 ) 7.42 cc (.453 in. 3 ) 6.36 cc (.388 in. 3 ) 5.30 cc (.323 in. 3 ) 4.24 cc (.258 in. 3 ) 3.18 cc (.194 in. 3 ) 2.12 cc (.129 in. 3 ) 1.59 cc (.097 in. 3 ) Performance quality products for mechanical & fluid power ~ jbj Techniques Limited, www.jbj.co.uk UK distributor for Concentric Hydraulics
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