Nova-tech Pulsafeeder OMNI DC7 User Manual

Installation, Operation, & Maintenance Instruction Model DC7 Bulletin #: IOM-DC7-0407- C Manufacturers of Quali

106.3 Oil Fill and Maintenance 6.3.1 Oil Capacities It is recommended that adequate supplies of PulsaLube oil be on hand for periodic changes an

11 6.3.3 Oil ChangesThe recommended oil change intervals are dependent upon the operating environment and level of pump usage, classified as follows

12 6. Start the pump at the zero stroke length setting and slowly increase the setting to 100 to prime the pump. If this does not work, it will be n

13 6.5 Calibration Figure 7, sample flow calibration curve All metering pumps must be calibrated to accurately specify stroke length settings for requ

14 7. Maintenance BEFORE PERFORMING ANY MAINTENANCE REQUIRING REAGENT HEAD OR VALVE (WET END) DISASSEMBLY, BE SURE TO RELIEVE PRESSURE FROM THE PIPIN

15 Figure 8, wet end components OMNI® diaphragms do not have a specific cycle life; however, the accumulation of foreign material or debris suffici

16 7.1 Diaphragm Removal & Reinstallation 1. Adjust the stroke setting to 0% and disconnect the power source to the drive motor. 2. Relieve al

17 6. Remove all but one top reagent head bolt. Product will leak out between the pump head adaptor and reagent head as the bolts are loosened. 7.

18 12. Thread the diaphragm (clockwise) fully onto the shaft. When reinstalling a used diaphragm it is not necessary to maintain the previous orientat

19 7.3 Check Valves Most fluid metering problems are related to check valves. Problems usually stem from solids accumulation between valve and seat,

2Pulsafeeder Factory Service Policy Should you experience a problem with your Pulsafeeder pump, first consult the troubleshooting guide in your oper

20 7.4 Check Valve Removal & Reinstallation, Plastic Union-Nut type 1. Disconnect the power source to the drive motor. 2. Relieve all pressu

21 7.5 Check Valve Removal and Reinstallation, Metal Tie-Bar type 1. Disconnect the power source to the drive motor. 2. Relieve all pressure from

22 Figure 14, Check valves, metal construction

23 7.6 Motor Removal & Reinstallation 1. Disconnect the power source to the drive motor. 2. Disconnect the motor wiring from the motor. 3. Re

24 8. Replacement Parts 8.1 KOPkit Program OMNI® KOPkits contain all replacement parts normally used in a preventative maintenance program. (PULSAl

25 8.3 KOPkit numbers by model: Pump Model Wetted Material Connection Type KOPkit number DC7 PVDF NPT / ISO / FLG NLK070X DC7 Polypropylene

26 10. Wet End Materials Reference Wet End Configuration Model Connection Head Guide Sealing O-ringsBalls Seats Seat O-ring DC2 1/4" NPT DC3 D

27 11. Troubleshooting Difficulty Probable Cause Remedy Faulty power source. Check power source. Blown fuse, circuit breaker. Replace - elimin

28 Difficulty Probable Cause Remedy Discharge pressure too high. Reduce pressure. Water hammer. Install pulsation dampener. Noisy gearing

29 12. Piping Accessories Pressure Relief Valves Pressure relief valves are designed to protect chemical feed systems from damage that may be cause

Table of Contents 1. INTRODUCTION...

30 13. Dimensional Drawing

31

32 14. Parts Diagrams and Parts Lists

33 33

34 STANDARD PUMP OPERATIONS 27101 Airport Road Punta Gorda, FL 33982 (941) 575-3800

41. Introduction The OMNI® metering pump is positive displacement, mechanically operated reciprocating diaphragm pump. Each pump consists of a power

52.1 Reagent Head Assembly The typical reagent head assembly consists of reagent head, diaphragm, and suction and discharge cartridge check valves.

6 3. Equipment Inspection Check all equipment for completeness against the order and for any evidence of shipping damage. Shortages or damage must b

75.2 Piping System 1. All systems should include a pressure relief valve on the discharge side, to protect piping and process equipment, including t

85.4 Discharge Pressure Requirements All OMNI® metering pumps are designed for continuous service at the rated discharge pressure. If system suctio

96. Equipment Startup 6.1 Fastener Inspection All pump fasteners should be checked prior to pump operation, and occasionally during use. This would