4ET - 725 RPM - 60Hz. ET - 450 RPM - 60Hz. (See Indivdual curves for symbol number) ET - 2900 RPM - 50Hz. (See Indivdual curves for symbol number)
60 Hz Performance 60Hz - PERFORMANCE AND SELECTION CHART Capacity in at Total Head in Feet (m) or Pressure Shown Catalog Number PSI (kpa) Feet (m) 8.6 (59) (6) (89) 0 (9) 7.2 (8) 40 (2) 2.5 (48) 50 (5) 26 (79) 60 (8) 4.5 (27) 80 (24) 4. (298) 00 54. (7) 25 (8) 64.9 (447) 50 (45) 75.8 (522) 75 (5) 86.6 (597) 0 97.4 (67) 225 (68) 08. (746) 250 9. (82) 275 (8) 0 (896) 00 (9) 40. (965) 25 (99) 5.8 (045) 50 (06) 750 RPM ET5M ET6M.9 (.) 2.4 (.5).7 () 2. (.4).6 () 2.2 (.).5 (.09) 2.0 (.2).4 (.08).9 (.). (.06).7 ().0 (.06).6 ().2.80 (.05)..4 (.08).7.60 (.0). /4 HP.2 (.07). (.02).5.0 (.06).2.0 (.0).7.80 (.05).28. (.0)..60 (.0).0 (.0).5 (.02).0 (.0).42 /4 HP / HP ET7M.4 (.2). (.). (.9) 2.9 (.8) 2.8 (.7). 2.5 (.5).5 2. (.4).8 2. (.)..8 (.).2.6 ().28.4 (.08).0.2 (.07)..0 (.06).6.85 (.05).70 (.04).47 /4 HP / HP /2 HP 60Hz - PERFORMANCE AND SELECTION CHART Capacity in at Total Head in Feet (m) or Pressure Shown Catalog Number PSI (kpa) Feet (m) 8.6 (59) (6) (89) 0 (9) 7.2 (8) 40 (2) 2.5 (48) 50 (5) 26 (79) 60 (8) 4.5 (27) 80 (24) 4. (298) 00 54. (7) 25 (8) 64.9 (447) 50 (45) 75.8 (522) 75 (5) 86.6 (597) 0 97.4 (67) 225 (68) 08. (746) 250 9. (82) 275 (8) 0 (896) 00 (9) 40. (965) 25 (99) 5.8 (045) 50 (06) 450 RPM ET5M ET6M 4.2 (.26). 6.0 (.7).28 4. (.25).2 5.9 (.7).28 4.0 (.25).25 5.7 (.5).285.9 (.24).27 5.5 (.4).29.8.29 5. (.).0.6 (.22).0.4 (.2)..2 (.).7.0 (.8).9 2.9 (.8).42 2.8 (.7).47 2.7 (.7) 2.6 (.6).56 2.6 (.6).6 2.5 (.5).66 2.4 (.5).70 / HP /2 HP /4 HP 5. (.2).2 4.8 (.0).8 4.6 (.29).4 4.4 (.27).48 4. (.27).5 4.2 (.26).57 4.0 (.25).60.9 (.24).65.8.70.7.72 / HP /2 HP /4 HP.7.8 2.4 (.5).78.6 (.22).88 ET7M 8. (.52).2 8.0 ().2 7.8 (.49).6 7.6 (.47) 7.4 (.46).4 7. (.44).46 6.8 (.42).52 6.5 (.4).58 6.2 (.9).65 6.0 (.7).70 5.8 (.6).76 5.5 (.4).8 5.5 (.4).89 5. (.).96 5.2 (.2).04 / HP /2 HP /4 HP HP 5. (.2). 5.0 (.).2 ET8M.7 (.7).45. (.7).0 (.69).5 0.8 (.68).57 0.5 (.66).60 0. (.6).70 9.7 (.6).78 9. (.58).88 8.9 (.56).97 8.5 (.5). /2 HP /4 HP HP NOTE: When pumping hot water over 80ºF (82.2ºC), check the NPSH available in the pumping system against the required pump NPSH shown on pump performance curves. Available NPSH must be greater than required NPSH. 2
50 Hz. Performance 50Hz - PERFORMANCE AND SELECTION CHART Capacity in at Total Head in Feet (m) or Pressure Shown Catalog Number PSI (kpa) Feet (m) 8.6 (59) (6) (89) 0 (9) 7.2 (8) 40 (2) 2.5 (48) 50 (5) 26 (79) 60 (8) 4.5 (27) 80 (24) 4. (298) 00 54. (7) 25 (8) 64.9 (447) 50 (45) 75.8 (522) 75 (5) 86.6 (597) 0 97.4 (67) 225 (68) 08. (746) 250 9. (82) 275 (8) 0 (896) 00 (9) 40. (965) 25 (99) 5.8 (045) 50 (06) ET5M ET6M. (.9) 4.8 (.0).0 (.8).4 4.6 (.29) 2.9 (.8).45 2.8 (.7).48 2.7 (.7) 2.6 (.6).5 2.4 (.5).55 2. (.4).57 2.2 (.).59 2. (.).6 2.0 (.2).7.9 (.).78.8 (.).86 /2 HP /4 HP HP 4. (.27) 4. (.25).54.8.60.6 (.22).66.4 (.2).7.2 (.).80. (.9).8.0 (.8).88 2.9 (.8).92 2.8 (.7).96 /2 HP /4 HP HP.7 ().94 2.7 (.7).0 2900 RPM ET7M 6.6 (.4).65 6.4 ().65 6.2 (.9).66 5.9 (.7).67 5.8 (.6).67 5.5 (.4).68 5.2 (.2).75 4.9 (.0).78 4.6 (.29).8 4.5 (.28).89 4. (.27).0 4. (.25).9 (.24).26 /4 HP HP ½ HP.8.29.7..6 (.22) NOTE: When pumping hot water over 80ºF (82.2ºC), check the NPSH available in the pumping system against the required pump NPSH shown on pump performance curves. Available NPSH must be greater than required NPSH.
Features MAXIMUM OPERATING CONDITIONS TEMPERATURE (For Standard Buna-N Seal) INLET PRESSURE CASING WORKING PRESSURE 225ºF (07ºC) 00 PSI (689kPa) 250 PSI (72kPa) BURKS Series ET turbine pumps are available for capacities up to 8 g.p.m. (0 l.p.s.) - pressures up to 50 p.s.i. (04 kpa) and temperatures up to 225 F. (07 C), with standard mechanical shaft seal. Special shaft seals are available for higher temperatures and fl uids other than water. These compact turbine pumps are designed for pumping clear water and many other non-abrasive, lower viscosity liquids. They are especially engineered for boiler feed on steam process applications and will serve up to a 8 hp. boiler at a to safety factor. Available in bronze fi tted as standard. All bronze or stainless steel construction also available. These pumps are recommended for many application requiring higher pressures and lower capacities. Coupling guard furnished on all complete Base-Mounted units manufactured by Burks Pumps. Not furnished with purchase of pump only, but required. FOR TEMPERATURES TO 500 F (260 C) Series ET Pumps are available in a Jacketed Seal Cavity design for pumping hot oil, hot water and heat transfer fl uids in common use in high temperature heating or cooling applications. This feature greatly extends seal life in high temperature applications. To order, add suffi x J to pump catalog number for temperatures below 400 F (4 C) and add suffi x JK to pump catalog number for temperatures over 400 F (4 C). Example: ET6MJ. See Section on High Temperature Pumps for more information. PART MATERIALS OF CONSTRUCTION BRONZE FITTED ALL BRONZE STAINLESS STEEL Frame Cast Iron Bronze #0 Stainless Impeller Bronze (Monel Blades) Bronze (Monel Blades) #0 Stainless Raceway Bronze Bronze #0 Stainless Shaft #0 Stainless #0 Stainless #0 Stainless Shaft Seal Carbon-Ceramic SS - Buna-N Carbon-Ceramic SS - Buna-N Carbon-Ceramic SS - Buna-N BURKS is the only turbine pump with Life-Lok external Impeller adjustment feature that allows readjustment of impeller without disturbing piping, disassembling pump or replacing parts. Gives up to 40% longer service life than turbine pumps of other designs. 4 2/
Dimensions DIMENSIONS IN INCHES (mm) A B CP CP 5 (27) 5½ (9) 4¼ (6) 4½ (68) D DD E F G H K K2 L L ½ (88) 2¼ (57) 2 (50) ⅜ (85) ½ () ½ () ⅝ (4) ¹¹ 6 (42) 7⅜ (87) 7⅝ (9) O P S U V X Y Y 5⅞ (49) ¹ 6 (27) ³ 6 ⅝ (5) 2¼ (57) 2⅜ 5 6 () Z ³ 6 (4.7) Frame 56 4T 45T AB C CP CP --- 2½ (7) 8 5 6 (227) 8 5 6 227 0 6 (27) 6 296 4¼ (6) 4¼ (6) 4¼ (6) 4½ (68) 4½ (68) 4½ (68) HA HB HC HC 8 () 8 () 8 () 22 (558) 22 (558) 22 (558) 27¼ (692) 25 7 6 (646) 26 7 6 (67) 27½ (698) 25 6 (652) 26 6 (677) DIMENSIONS IN INCHES (mm) HD HE HF HG HH HL HL 6 (52) 6 (52) 6 (52) (508) (508) (508) 2½ (6) 2½ (6) 2½ (6) 6 (7) 6 (7) 6 (7) 7 5 6 (85) 7 5 6 (85) 7 5 6 (85) 7 9 6 (92) 7 9 6 (92) 7 9 6 (92) HM HO HP HT S X Y Y 9 6 (2) 9½ (24) 9½ (24) 8⅜ (22) 8⅜ (22) 8⅜ (22) ½ (2) ½ (2) ½ (2) 6 6 6 2⅜ 2⅜ 2⅜ 5 6 () 5 6 () 5 6 () Z 6 (4.7) 6 (4.7) 6 (4.7) A strainer, approximately mesh, should be installed on the suction side of the pump to prevent chips, scale or hard foreign particales from entering the pump and damaging the raceway and impeller. 5
60 Hz Performance 6
60 Performance 7
60 Hz Performance 8
60 Hz. Performance 9
50 Hz. Performance 0
50 Hz. Performance