66 4’’WPS® Cooling Shrouds The cooling shrouds are designed to ensure a sufficient flow velocity past the motor in order to provide sufficient cooling. For the following cases a cooling shroud is recommended: • horizontal or vertical installation in a tank • installation of the pump in the screen from the well • installation in big sized well not ensuring enough cooling velocity. See table. To the shroud itself, a screen can be added. In case of horizontal installation a set of supports are available. Accessories Minimum flow required for motor cooling in water up to 20°C. Casing or sleev I.D. [mm (inches)] 4’’ motor, cooling flow 8 cm/sec [m3/h] 102 (4’’) 0,3 127 (5’’) 1,6 152 (6’’) 3,0 203 (8’’) 6,9 254 (10’’) 11,4 305 (12’’) 18,2 Description Material Fits to pump type Reference Shroud Ø 115 x 400 mm 1.4301-AISI 304 4’’WPS 1,5-5 up to 15 4’’WPS 2,5-4 up to 12 4’’WPS 4-3 up to 9 4’’WPS 7-2 up to 6 4’’WPS 13-3 74010 Shroud Ø 115 x 500 mm 1.4301-AISI 304 4’’WPS 1,5-19up to 46 4’’WPS 2,5-15 up to 37 4’’WPS 4-13 up to 27 4’’WPS 7-9 up to 18 4’’WPS 13-4 up to 8 74020 Shroud Ø 115 x 625 mm 1.4301-AISI 304 4’’WPS 1,5-52 up to 62 4’’WPS 2,5-44 up to 51 4’’WPS 4-32 up to 37 4’’WPS 7-22 up to 25 4’’WPS 13-11 up to 13 74030 Shroud Ø 115 x 800 mm 1.4301-AISI 304 4’’WPS 2,5-57 up to 67 4’’WPS 4-42 up to 67 4’’WPS 7-28 up to 46 4’’WPS 13-15 up to 23 74040 Shroud Ø 115 x 1000 mm 1.4301-AISI 304 4’’WPS 7-52 up to 62 4’’WPS 13-27 op to 30 74050 Screen Ø 115 x 117 mm 1.4301-AISI 304 For all models 74300 Set of supports for shroud with lenght 400 or 500 mm 1.4301-AISI 304 Fits to reference 74010 and 74020 74400 Set of supports for shroud with lenght 625 or 1000 mm 1.4301-AISI 304 Fits to reference 74030, 74040 and 74050 74410 Cooling schrouds in material 1.4401 - AISI 316 are avaible upon request
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