Max working pressure at 155oC (311F): Inner circuit: 31 bar (450psi) Outer circuit: 31 bar (450psi) Max working pressure at 225oC (437F): Inner circuit: 27 bar (392psi) Outer circuit: 27 bar (392psi) Test pressure: 50 bar (725psi) Min temperature: -196oC (-321F) Max temperature: 225oC (437F) Max number of plates (NoP) 140 CBE weight 1.442+NoPx0.12kg (3.2+NoPx0.3lbs) Hold-up volume: inner circuit (NoP/2-1)x0.063 litres ((NoP/2-1)x0.002 gal.) Plate material: Parts in contact with fluid: AISI 316 Parts not in contact with fluid: AISI 304 Brazing material: Pure Copper Standard connection material AISI 316