Honeywell DC2, DC6, DC3, DC4, DC5 manual Introduction, Principles Of Operation

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1. Introduction

The OMNI® metering pump is positive displacement, mechanically operated reciprocating diaphragm pump. Each pump consists of a power end and a process end separated by a PTFE faced diaphragm. Individual pumps will vary in appearance due to various liquid ends and accessories; however, the basic principles of operation remain the same.

2. Principles Of Operation

Figure 1, reagent head operation

A diaphragm reciprocates at a preset stroke length, displacing an exact volume of process fluid. Diaphragm retraction causes the product to enter through the suction check valve. Diaphragm advance causes the discharge of an equal amount of the product through the discharge check valve.

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Contents

Models DC2, 3, 4, 5, Installation, Operation Maintenance InstructionSafety Considerations Pulsafeeder Factory Service PolicyTable of Contents 14.1 Principles Of Operation IntroductionGear Ratio Assembly Reagent Head AssemblyControl Assembly Equipment Inspection InstallationStorage LocationPiping System Discharge Pressure Requirements Suction Pressure RequirementsFastener Inspection Output AdjustmentEquipment Startup Process flow Priming the Reagent HeadSample flow calibration curve CalibrationLubrication MaintenanceWet end components Wet End Removal, Inspection, & ReinstallationDiaphragm Removal & Reinstallation General Description Check ValvesCheck valves, DC3 and DC Check Valve Removal & Reinstallation, Cartridge type DC5 and 6 check valves, metal construction Gearset Removal Motor Removal & ReinstallationGearset components Gearset Replacement Ordering KOPkits or Parts Replacement PartsKOPkit Program Pump Model Wetted Material Connection Type KOPkit number KOPkit numbers by modelNPT Model Number IdentificationPvdf Wet End Materials ReferenceDifficulty Probable Cause Remedy Pump does not start TroubleshootingDifficulty Probable Cause Remedy Noisy gearing Pressure Relief Valves Piping AccessoriesLetters reference dimensional table on next Dimensional DrawingDC5 PP/PVDF Parts diagram, DC2 Parts Diagrams and Parts ListsDescription QTY Part Number Bill of Materials, DC2Name TAG Bill of Materials, DC3 4 7 0 0 4 1 S T L This page intentionally left Blank Parts Diagram, DC4, 5, Bill of Materials, DC4 DC4/5 Gearbox Bill of Materials, DC5 Tiebar Bill of Materials, DC6 DC4/5/6 Gearbox Page Standard Pump Operations