Check the listing for details. Stainless Steel Copper Brazed Heat Exchanger Mounting Studs Water Boiler Radiant. Condition: New. Listed at 52.44 USD. Plate Heat Exchangers Copper Brazed Stainless Steel Plates by Duda Energy Free Shipping Hawaii, Alaska, US Protectorates & PO Boxes: Additional postage may be due for models other than the B3-12A, B3-23A & B3-14DW Our plate heat exchangers come with mounting studs welded on the back. We use M5-0.8 studs for B3-12A models and M8-1.25 studs for all other sizes. Recommended for: Boilers, wood stoves, solar water heating, refrigeration, SVO conversions, Heat Pumps, Central Air Conditioning, Industrial Water Cooling, Oil Coolers and any application where heat transfer between two fluids is required. Need help choosing a unit? Generally speaking, the longer the heat exchanger is, the more efficient it will be. Adding more plates reduces pressure loss and adds some extra heat transfer. More width on a unit also reduces pressure loss and adds some heat transfer. Since plate heat exchanger utilize convection, it is better to add length than plates or width for heat transfer when the flow rates are low. (adding more plates or width reduces fluid velocity and thus, less convection) For a specific sizing to your requirements, please see our heat exchanger sizing form. Duda Diesel Plate Heat Exchangers Specifications Sheet by Model Model B3-12A B3-14DW B3-23A B3-36A B3-32A B3-32DW B3-52A B3-95A B3-115A Length 7.5" 7.8" 12.4" 18.3" 11.256" 20.7" 24.3" 21.1" Width 2.9" 3.46" 2.9" 2.9" 4.56" 4.4" 7.5" 10" Height 2.24mm/plate + 7mm 0.088"/plate + 0.275" 2.4mm/plate+ 7mm 0.095"/plate + 0.275" Max Number of Plates 60 120 200 300 Max Connection Size 3/4" Thread 7/8" Welded 1" Threaded 1-1/8" Welded 2" Threaded 2-1/8" Welded 3" Threaded 3-1/8" Welded Heat Transfer Area/Plate 0.012 m²/plate 0.14 ft²/plate 0.014 m²/plate 0.14 ft²/plate 0.023 m²/plate 0.247 ft²/plate 0.036 m²/plate 0.327 ft²/plate 0.032 m²/plate 0.327 ft²/plate 0.052 m²/plate 0.560 ft²/plate 0.095 m²/plate 0.9728 ft²/plate 0.115 m²/plate 1.24 ft²/plate Thickness of plates 0.3 mm (.0118") 0.4 mm (.0157") Max Flow Rate 66.6 L/min 17.6 gpm 200 Lpm 53 gpm 583 L/min 154 gpm 1000 L/min 264 gpm Channel Capacities 0.018 L/channel 0.004756 gal/channel 0.022 L/channel 0.006 gal/channel 0.04 L/channel 0.0105 gal/channel 0.05 L/channel 0.0132 gal/channel 0.094 L/channel 0.025 gal/channel 0.25 L/channel 0.066 gal/channel 0.29 L/channel 0.076 gal/channel Design pressure 1.0 Mpa (145 psi) 3.0 Mpa (435 psi) Test Pressure 2.0 Mpa (290 psi) 4.5 Mpa (650 psi) Design Temperature -195°C to +220°C (-319°F to 430°F) Refrigeration Capacity 1-5 KW 3400-17,000 BTU/hour 1-6 KW 3400-21,000 BTU/hour 3-10 KW 10,000-34,000 BTU/hour 4-15 KW 17,000-61,200 BTU/hour 5-20 KW 17,000-85,000 BTU/hour 10-70 KW 34,000-238,000 BTU/hour 30-200 KW 102,000-680,000 BTU/hour Flow direction F1-F3 and F2-F4