46 www.stauff.com/5/en/#46 HP/HU Catalogue 5 § Edition 03/2024 STAUFF Push-to-Connect Couplings Series HP § Carbon Steel Series BG DN DN Q max Working Pressure Bursting Pressure Spillage Zoll metric Connected Female Body Male Tip Inch ISO 4397 l/min US GPM bar PSI bar PSI bar PSI bar PSI ml fl oz HPA-06 1 1/4" 6,3 20 5.28 250 3626 1000 14504 1000 14504 1000 14504 0,8 .0271 HP(A)-10 2 3/8" 10 35 9.25 250 3626 1000 14504 1000 14504 1000 14504 1,2 .0406 HP-12 3 1/2" 12,5 100 26.42 250 3626 1000 14504 1000 14504 1000 14504 1,7 .0575 HP-19 4 3/4" 19 (20) 120 31.70 250 3626 900 13053 1000 14504 1000 14504 8 .2705 HP-25 6 1" 25 160 42.27 250 3626 800 11603 1000 14504 800 11603 12 .4058 HU-12 3 1/2'' 12 90 23.78 250 3626 1100 15954 1500 21756 1000 14504 2,7 .0913 Technical Data Material Carbon Steel Surface Finishing Zinc-Nickel 1 , Zinc-Plating and Thick-Film-Passivation (Chrome III) Standard Seal Material(s) NBR (Buna-N®), PTFE 2 Working Temperature -25° C ... +100° C / -13° F ... +212° F Valve Design Poppet Valve Connection Push (When mounting the Sleeve in Bulkhead), Push and actuate Push-Pull Sleeve Disconnection Pull (When mounting the Sleeve in Bulkhead), Actuate Push-Pull Sleeve Connect Under Pressure not allowed, (Male Tip Series HU up to the max. Working Pressure allowed) Application Agricultural and Forestry Machinery ISO Interchange ISO 7241-1 A and ISO 5675 (for selected sizes). The indicated pressure ratings only apply to the coupling itself and depend on the connection type. 1Only Nominal Size 12,5 2Alternative seal materials are available on request. Please note: Unless otherwise stated, all flow characteristics have been determined with hydraulic oil with a kinematic viscosity of 28,8 - 35,2 mm2 /s (28,8 - 35,2 cSt) and are only valid for components with non-reducing connections. Flow Characteristics QRC-HP-06 QRC-HP-10 QRC-HP-12 QRC-HP-19 QRC-HP-25 1 10 100 1000 0,1 1 10 Q [l/min] Δp [bar] Q [US GPM/min] Δp [PSI] 264,17 26,42 2,64 .26 1.45 14.50 145.04
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