GRUNDFOS PRODUCT GUIDE

Technical dataDMHSound pressurePump rangeSound pressure level [dB(A)]DMH 251 55 ±5DMH 252 55 ±5DMH 253 65 ±5DMH 254 65 ±5DMH 255 75 ±5DMH 257 75 ±5DMH 280 55 ±5DMH 281 55 ±5DMH 283 65 ±5DMH 285 75 ±5DMH 286 75 ±5DMH 287 75 ±5DMH 288 65 ±5AccuracyPumpDMHDosing flow fluctuation Linearity deviation< ± 1.5% within the 10 to100% turn-down rangeThe values in the table above are based on thefollowing conditions:• pumping liquid: water• fully vented dosing head• standard version of pump.± 2% of the full-scale value) Tested according to DIN 45635-01-KL3.Permissible temperature of dosing liquidDosing head material) For SIP/CIP applications, a temperature of 293 °F (145 °C) is permissiblefor a short time (approx. 15 min.) at p < 29 psi (2 bar).(CIP = Cleaning-In-Place).(SIP = Sterilisation/Steam-In-Place).AR control unit, technical datap < 145 psi[°F]Permissible temperature of dosing liquidp < 232 psi[°F]p < 10 bar[°C]p < 16 bar[°C]PVC 32 to104 32 to 68 0 to 40 0 to 20Stainless steel, 316Ti 14 to 212 14 to 212 -10 to 100 -10 to 100Hastelloy C-4 14 to 212 14 to 212 -10 to 100 -10 to 100PP 32 to 104 32 to 68 0 to 40 0 to 20PVDFEnclosure class IP 6514 to 140(158 at 130 psi)14 to 68-10 to 60(70 at 9 bar)-10 to 2034