Catalogue 5 - STAUFF Quick Release Couplings

178 www.stauff.com/5/en/#178 HM Catalogue 5 § Edition 03/2024 STAUFF Screw-to-Connect Couplings Series HM § Carbon Steel and Brass 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 HM-19 4 3/4" 19 (20) 220 58.12 210 3046 1160 16824 460 6672 580 8412 0,15 .0051 HM-25 6 1" 25 260 68.68 210 3046 880 12763 370 5366 720 10443 0,4 .0135 HM-31 8 1 1/4'' 31 400 105.67 190 2756 520 7542 430 6237 570 8267 0,65 .0220 HM-38 10 1 1/2'' 38 600 158.50 170 2466 500 7252 430 6237 350 5076 0,85 .0287 Material Brass and Carbon Steel Surface Finishing Carbon Steel: 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 Flat Valve Connection Screw Disconnection Screw Connect Under Pressure not allowed Application Industrial Hydraulic 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. Male Tip Female Body QRC-HM-19 QRC-HM-25 QRC-H -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