164 www.stauff.com/5/en/#164 HH Catalogue 5 § Edition 03/2024 STAUFF Screw-to-Connect Couplings Series HH § Stainless 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 HH-10 2 3/8" 10 18 4.76 650 9427 2200 31908 2400 34809 2200 31908 1,9 .0642 HH-12 3 1/2" 12,5 23 6.08 600 8702 2100 30458 2000 29008 1600 23206 2,7 .0913 HH-19 4 3/4" 19 (20) 45 11.89 500 7252 2000 29007 3000 43511 2800 40611 9,3 .3145 HH-25 6 1" 25 106 28.00 460 6672 1600 23206 1800 26107 1600 23206 16 .5410 HH-31 8 1 1/4'' 31 189 49.93 400 5802 1400 20305 1900 27557 1600 23206 30 10.144 HH-38 10 1 1/2'' 38 300 79.25 360 5221 1700 24656 1700 24656 1700 24656 54 18.260 HH-51 12 2" 51 757 199.98 210 3046 1050 15229 1600 23206 1400 20305 120 40.577 Material Stainless Steel V4A (AISI 316) Surface Finishing - Standard Seal Material(s) FKM (Viton®) 2 Working Temperature -25° C ... +200° C / -13° F ... +392° F Valve Design Poppet Valve Connection Screw Disconnection Screw Connect Under Pressure Male Tip or Female Body allowed Application Industrial Hydraulic, Offshore, Rescue and Tensioning Hydraulics ISO Interchange - The indicated pressure ratings only apply to the coupling itself and depend on the connection type. 2Alternative seal materials are available on request. Technical Data Flow Characteristics QRC-HH-10…W5 QRC-HH-12…W5 QRC-HH-19…W5 QRC-HH-25…W5 QRC-HH-31…W5 QRC-HH-38…W5 QRC-HH-51…W5 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 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.
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