UNLOADERS, INJECTORS, VALVES & GUAGES Regulator/Unloader - HM ! Excess flow is bypassed to maintain selected pressur !Will operate on single or multiple gun systems ! Brass body — stainless-steel valve and seat ! 3/8" FPT inlet ! 3/8" MPT outlet ! 3/8" FPT bypass ! Flow range – 1.4 to 10.8 GPM ! Pressure adjustable 0-3000 PSI Part No 8.712-622.0 8.702-860.0 Old No 462575 103072B Description HM Regulator/Unloader Repair Kit Regulator / Unloader - ST-261 ! 8 GPM ! Stainless-steel plunger and seat ! 0-3600 PSI regulation ! Viton seals ! 180°F temperature rating ! Forged-brass body ! 22.5 oz weight ST-261 Standard Part No 8.712-681.0 8.900-156.0 8.701-627.0 8.701-650.0 Unloader - Hypro-Style ! All rated at 5 GPM ! Pressures from 400 to 1500 PSI ! 180°F ! Buna seals ! 3/8" MPT inlet and outlet ! 8 oz weight Part No 8.712-689.0 8.712-690.0 8.712-691.0 8.712-692.0 8.712-693.0 8.722-643.0 Old No 462739 462740 462743 462745* 462748* H34300223 Pressure 200-500 400-1000 800-1500 400-1000 800-1500 Repair Kit for All *Bypass port not threaded, closed coupled Part No Unloader - YU – High-Volume ! 21 GPM ! 1/2" FPT inlet, outlet ! 2-1/2" FPT bypass ports YU-2121 Yellow Spring ! 2300 PSI ! 2600 PSI rated pressure Part No 8.753-326.0 8.753-168.0 Spring Yellow Green Part No Regulator / Relief Valve - ST-230 ! 8 GPM ! Complete pressure regulation 0-3600 PSI ! 200°F ! 1/4" FPT inlet and bypass ! Mounts off-line — no line restrictions ! All brass body with stainless-steel piston and seat ! 14 oz weight Part No 8.712-628.0 8.701-626.0 Old No 462590 087926 Description ST-230 Repair Kit 8.712-686.0 8.904-576.0 8.904-577.0 Old No 462696 462697 462698 ST-261 Bypass Switch only ! Field-mountable ! 10 Amp @ 115/230V ! Switches at full bypass flow !Wired N/C (may be wired N/O) Part No 8.712-629.0 8.701-642.0 8.701-647.0 Page 121 Old No 462626 088272 088422 Description Switch Assy Complete Micro Switch Only Seal Kit – Micro Switch GPM 0.0–2.4 2.4–3.5 3.5–5.5 Model ST-261/SI-1 ST-261/SI-2 ST-261/SI-3 ! 200°F ! Forged-brass body ! Stainless-steel internals YU-2140 Green Spring ! 4050 PSI ! 4500 PSI rated pressure 8.712-682.0 8.712-683.0 8.712-684.0 8.900-159.0 8.701-648.0 Old No 462691 462692 462693 088260X 088424 GPM 0.0–2.4 2.4–3.5 3.5–5.5 Model ST-261/I-1 ST-261/I-2 ST-261/I-3 Injector Repr w/o Barb Injector Repr w/ Barb ST-261/SI Unloader with Switch and Injector ! Switches at full bypass flow ! 10 Amp, 110/230V !Wired N/C (may be wired N/O) Bypass 1/4" FPT 1/4" FPT 1/4" FPT Old No 462690 088211X 088209 088466 Description ST-261 STD Seal Kit Repair Kit “B” Outlet Check Kit “A” ST-261/S Unloader with Bypass Switch ! Switches at full bypass flow ! 10 Amp, 110/230V !Wired N/C (may be wired N/O) Part No 8.712-685.0 8.701-647.0 Old No 462695 088422 Model ST-261/S Switch Seal Kit ST-261/I Unloader with Chemical Injector
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