UNLOADERS, INJECTORS, VALVES & GUAGES CONTROL SET "W" SERIES / INTEGRATED REGULATOR / UNLOADER Designed exclusively to fit Interpump and General pumps. n Mounts directly on pump inlet and outlet; internal bypass loop. n Pressure Actuated: "Instant-On" n 3/8" MPT Outlets n Integrated Injector - Optional n Pressure and flow-engineered for specific pump models PART NO. OLD NO. “W” Series Unloaders 8.712-638.0 8.712-643.0 462636 462643 8.712-644.0 462644 8.702-883.0 8.702-888.0 MODEL W1 W2 W2-L GPM 4.00 5.56 5.56 103093B W2 / W2L Rebuild Kit 103098B W1 / W1L Rebuild Kit “W” Series Unloaders with Injectors 8.712-642.0 462642 8.712-645.0 462645 8.712-647.0 8.702-884.0 W2-1 462647 W2L-1 W2L-2 2.9-4.0 3000 2.9-4.0 3000 103094B Injector Maintenance Kit "K" SERIES PRESSURE REGULATORS KITS Repair Kits for all K3, K5, K7 and K9 models. PART NO. 8.702-847.0 8.702-849.0 8.705-045.0 8.702-858.0 8.702-911.0 OLD NO. 103058B 103060B 140070 103070B 103121B DESCRIPTION K5 Maintenance Kit K5 Rebuild Kit K5 Back Nut 3/4” NPT K7 Repair Kit K9 Repair Kit K7 ZK1 n Temperature: 165°F PART NO. 8.712-617.0 8.712-618.0 8.712-619.0 8.712-620.0 OLD NO. 462570 462571 462572 462573 n GPM: 2.3-10.8 PART NO. 8.712-602.0 8.712-601.0 K9 n 3/8" FPT MODEL K7.0 K7.1 K7.2 K7.3 GPM 2.11-2.90 2.90-4.22 4.22-6.60 6.60-10.8 OUTLET 3/8” M 3/8” M 3/8” M 3/8” M n Temperature: 165°F n 3/8" Inlet BSP-F OLD NO. 462526 462525 n Temperature: 165°F PART NO. 8.712-621.0 OLD NO. 462574 MODEL 2K138 ZK1 OUTLET / BYPASS 3/8” BSP-M 1/2” BSP-M n 1/2" FPT MODEL K9 GPM 13.2 OUTLET 1/2” M K3 W997 W201 4.2-5.5 3000 WS202 FITS PSI PUMP 1600 3000 3000 W905 W997 W201 "K" SERIES PRESSURE REGULATORS Unloaders relieve line pressure in bypass mode. n Temperature: 165°F n 3/8" FPT Inlet PART NO. K3 8.712-603.0 8.712-605.0 8.712-607.0 8.712-609.0 8.712-604.0 8.712-606.0 8.712-608.0 8.712-610.0 K5 8.712-611.0 8.712-613.0 8.712-615.0 8.712-612.0 8.712-614.0 8.712-616.0 462551A 462552A 462553A K5.1 K5.2 K5.3 K5.1 K5.2 K5.3 2.90-4.22 4.22-6.60 2.90-4.22 3/8” M 3/8” M 6.60-10.83 3/8” M 1/2” M 4.22-6.60 1/2” M 6.60-10.83 1/2” M Note: 1. Use 8.705-045.0 back nut on bypass nipple when mounting 1/2” bypass line on K3s and K5s. 2. Use restricted .156-.225 ID orifice in bypass line for smoother operation / pressure balancing. PART NO. 8.715-478.0 8.701-386.0 8.701-389.0 DESCRIPTION Bypass plate for K3 / K5 K7 - #0 Bypass Orifice 2.2 mm K7 - #1 Bypass Orifice 2.5 mm OLD NO. 462530A 462531A 462532A 462533A n 1/2" FPT B MODEL K3.0 K3.1 K3.2 K3.3 K3.0 K3.1 K3.2 K3.3 GPM OUTLET 2.10-2.90 3/8” M 2.90-4.22 3/8” M 4.22-5.55 3/8” M 3/8” M 5.00-6.50 2.10-2.90 1/2” M 2.90-4.22 1/2” M 1/2” M 1/2” M 4.22-5.55 5.00-6.50 Specifications, product descriptions and product availability subject to change without notice. 181
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