Pulsafeeder Pulsa GLM DM7 User Manual

PULSA GLM® MECHANICAL DIAPHRAGM METERING PUMP Bulletin #: IOM-GLM-DM7-001 Installation, Operation & Maintenance Instruction Models: GLM7

10 6.3 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 Changes The recommended oil change intervals are dependent upon the operating environment and level of pump usage, classified as follo

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

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

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

15 Figure 8, wet end components GLM® DM7 diaphragms do not have a specific cycle life; however, the accumulation of foreign material or debris

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

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 orient

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

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

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

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 f

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.

24 8. Replacement Parts 8.1 KOPkit Program GLM® DM7 KOPkits contain all replacement parts normally used in a preventative maintenance program. (P

25 8.3 KOPkit numbers by model: Pump Model Wetted Material Connection Type KOPkit number DM7 Polypropylene NPT / ISO / FLG KD7P DM7 31 6

26 10. Troubleshooting DIFFICULTY PROBABLE CAUSE REMEDY Pump does not start Faulty power source Check power source Blown fuse, circuit break

27 DIFFICULTY PROBABLE CAUSE REMEDY Delivery erratic Leak in suction line Locate and correct Product cavitating Increase suction pressur

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

29 12. Dimensional Drawings

3 Table of Contents 1. INTRODUCTION ...

30

31 13. Parts Diagrams and Parts Lists

32

PULSA GLM® MECHANICAL DIAPHRAGM METERING PUMP Bulletin #: IOM-GLM-DM7-001 A unit of IDEX Corporation 2883 Brighton Henrietta Town Line Roa

4 1. Introduction The GLM® DM7 metering pump is positive displacement, mechanically operated reciprocating diaphragm pump. Each pump consists of a

5 2.1 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

7 5.2 Piping System 1. All systems should include a pressure relief valve on the discharge side, to protect piping and process equipment, includin

8 5.4 Discharge Pressure Requirements All GLM® DM7 metering pumps are designed for continuous service at the rated discharge pressure. If system suc

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