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I. Introduction
This manual covers all facets of operation of the DEMA FlexFlow™ pump, including unpacking,
mounting, electrical and plumbing connection, and start-up. Safety, maintenance and repair, warranty, and
factory information is also provided. Please read this manual completely before proceeding. Observe safety
protocols and heed all warnings and precautions.
Model Numbering
FlexFlow™ Series B pump model numbers define the output, pressure and control functions present on a
particular pump. Your pump may be supplied with one or more of the options described in this manual.
To determine what features apply to your pump, check the model number label located on the pump.
II. Unpacking
The FlexFlow™ pump has been shipped as a complete package, ready for installation. If the shipping carton
shows any signs of damage, notify the shipping company immediately upon receipt. DEMA cannot be held
responsible for damage from shipping.
Unpack the carton and insure the following items are present:
1.
Metering pump
4.
Injection fitting
2.
Suction, discharge and priming tubing
5.
Instruction manual
3.
Foot valve and weight
III. Safety Considerations
NOTE: All FlexFlow™ pumps are primed with water before leaving the factory. If the
solution to be pumped is not compatible with water, disassemble the pump fluid end before
use. After disassembly, thoroughly dry the pump head, valves, and seals before pump is
reassembled and used.
A. Chemical Compatibility
FlexFlow™ metering pumps are designed to work with most liquid chemicals depending upon
your pump’s liquid end materials of construction. A chemical resistance chart is available for
determining specific compatibility with a wide variety of chemicals. If you have further
compatibility questions, contact DEMA service department at 1-800-325-3362.
B. Safety and Preparation
Always wear the proper protective clothing and gear when working around chemicals and
chemical metering pumps. Safety glasses, gloves, and aprons are critical in preventing acciden-
tal exposure to dangerous chemicals. Liquids under pressure can present a special hazard when
a line or seal is punctured resulting in the spraying of chemical many yards away. If a chemical
spillage occurs, consult the Material Safety Data Sheet (MSDS) for specific instructions regarding
the chemical being used.