Related Manuals for DAYLIFF DB
Summary of Contents for DAYLIFF DB
- Page 1 DB & DBH Horizontal Multistage Pumps DB12 Installation & Operating Manual...
- Page 3 INDEX PUMP SPECIFICATIONS 2. INSTALLATION ELECTRICAL CONNECTIONS PRIMING MAINTENANCE TROUBLE SHOOTING WARRANTY © Davis & Shirtliff Ltd 2018 Contents herein are not warranted...
-
Page 4: Pump Specifications
Congratulations on selecting a Dayliff DB/DBH Pump. They are manufactured to the highest standards and if installed and operated correctly will give many years of efcient and trouble free service. Careful reading of this Installation Manual is therefore important, though should there be any queries they should be referred to the equipment supplier. -
Page 5: Operating Conditions
The pump has small physical dimensions, axial suction port and radial discharge and is base plate mounted. DB suction chamber and pump head are made of grey cast iron while the impeller and impeller housing are of stainless steel. DBH pump body, suction and discharge ports are made from AISI 316 stainless steel as is all the other parts in contact with the pumped liquid. -
Page 6: Installation
1" DBH 4-50 0.75 1¼” DBH 8-30 1½” DB Cross Sectional Diagram DBH Cross Sectional Diagram 2) INSTALLATION Site in a dry, well ventilated and weather proof location with an ambient UPWARD SLOPE temperature of no more than 40 C. -
Page 7: Electrical Connections
If there is negative suction (i.e the pump is above the suction water level) the suction pipe must be slightly angled upwards towards the pump inlet to avoid the formation of air locks. It must also be immersed in water by at least 0.5m to avoid the formation of vortexes and a good quality foot valve must be fitted. -
Page 8: Maintenance
4) PRIMING Serious damage will occur if a pump is not properly primed and runs without water. WARNING The pump must be primed before operation. To do this completely fill the pump housing with clean water through the priming plug before switching it When full replace the priming plug and start the pump checking there is a steady flow at the pump outlet. -
Page 9: Troubleshooting
6. TROUBLE SHOOTING PROBLEM POSSIBLE CAUSE SOLUTION Check connections and power No Power supply Motor won’t start Impeller stuck See section on maintenance Reduce delivery head Delivery head exceeds pump capacity Specify different pump Clogged foot valve Clean foot valve Motor turns without Excessive suction height... -
Page 10: Terms Of Warranty
7. TERMS OF WARRANTY i) General Liability • In lieu of any warranty, condition or liability implied by law, the liability of Davis & Shirtliff (hereafter called the Company) in respect of any defect or failure of equipment supplied is limited to making good by replacement or repair (at the Company's discretion) defects which under proper use appear therein and arise solely from faulty design, materials or workmanship within a specified period. - Page 11 Also proof of purchase including the purchase invoice must be provided for a warranty claim to be considered.
- Page 12 INS179E-05/18...