female quick connect coupling hydraulic water pipe fittings Quick Connector Operating Pressure and Temperature Temperature Size 1/4â?� 3/8â?� 10mm 12mm 15mm 20mm 22mm 25mm 32mm -20â??(-4â??) 230Psi 170Psi 1â??(34â??) 230Psi 170Psi 20â??(68â??) 230Psi 170Psi 65â??(149â??) 150Psi 100Psi Attention: Please contact if our productsare used in different temperature and pressure. Allowed OD Tolerance Size Tolerance 1/4â?� ±0.002â??(±0.05mm) 3/8â?� 10mm ±0.002â??(±0.05mm) -0.004â?�(-0.05mm) 12mm 15mm 20mm 22mm 25mm 32mm Allowed Torque Thread Torque 1/4â?�, 3/8â?� 10mm,12mmm15mm 20mm,22mm, 25mm,32mm plastic Max Torque (N.m) 1.5 3.0 4.0 Steal Max Torque (N.m) 7.9-9.0 12.0-14.0 22.0-24.0 28.0-3 z0