Copyright 2011 Dave McCampbell High Pressure Side Engineering System Pressures: –Max 1000 psi – relief valve –Operating max 850 psi – control valve Pump for 40 gpm system: –Type – Triplex high pressure pump by Cat, Hypro, Giant, others –Head material – bronze, stainless steel or titanium –Rated flow rate - 4-5 gpm End fittings: –Best - reusable screw on, also crimp –Stainless steel or bronze