Catalogue 5 - STAUFF Quick Release Couplings

148 www.stauff.com/5/en/#148 HR Catalogue 5 § Edition 11/2021 STAUFF Screw-to-Connect Couplings Series HR § 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 HR-10 2 3/8" 10 50 13.21 610 8847 2450 35534 2450 35534 2600 37710 2 .0676 HR-12 3 1/2" 12,5 85 22.45 470 6817 1900 27557 2100 30458 1650 23931 3 .1014 HR-19 4 3/4" 19 (20) 120 31.70 310 4496 1250 18130 1500 21756 1250 18130 10 .3381 HR-25 6 1" 25 280 73.97 300 4351 1300 18855 1600 23206 1100 15954 16 .5410 HR-31 8 1 1/4'' 31 460 121.52 300 4351 1300 18855 1300 18855 1200 17405 30 10.144 HR-38 10 1 1/2'' 38 700 184.92 270 3916 1100 15954 1500 21756 950 13779 54 18.260 Material Carbon Steel Surface Finishing Zinc-Plating and Thick-Film-Passivation (Chrome III) Standard Seal Material(s) NBR (Buna-N®) 2 Working Temperature -25° C ... +100° C / -13° F ... +212° F Valve Design Poppet Valve Connection Screw Disconnection Screw Connect Under Pressure Male Tip and Female Body up to max. 100 bar / 1450 PSI allowed Application Construction Machinery ISO Interchange - The indicated pressure ratings only apply to the coupling itself and depend on the connection type. 2 Alternative seal materials are available on request. Technical Data Flow Characteristics Please note: Unless otherwise stated, all flow characteristics have been determined with hydraulic oil with a kinematic viscosity of 28,8 - 35,2 mm 2 /s (28,8 - 35,2 cSt) and are only valid for components with non-reducing connections. QRC-HR-10 QRC-HR-12 QRC-HR-19 QRC-HR-25 QRC-HR-31 QRC-HR-38 1 10 100 1000 0,1 1 10 Q [l/min] Δ p [bar] Q [US GPM/min] Δp [PSI] 264,17 26,42 2,64 .26 1.45 14.50 145.04

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