Table Of Contents - DEMA Flex Flow Manual

I. Introduction .........................................................................................3
Model Numbering ...............................................................................3
II. Unpacking ...........................................................................................3
III. Safety Considerations .........................................................................3
A.
B.
IV. Installation ...........................................................................................4
A.
B.
C.
V. Start-Up ..............................................................................................7
A.
B.
C.
D.
E.
VI. Maintenance .......................................................................................8
A.
B.
C.
D.
VII. Trouble Shooting Guide .................................................................... 11
Manufacturer's Product Warranty
DEMA warrants units of its manufacture to be free of defects in material or workmanship. Liability under this policy extends
for 24 months from date of installation. Liability is limited to repair or replacement of any failed equipment or part proven
defective in material or workmanship upon manufacturer's examination. Removal and installation costs are not included
under this warranty. Manufacturer's liability shall never exceed the selling price of equipment or part in question. DEMA
Eng disclaims all liability for damage caused by its products by improper installation, maintenance, use or attempts to
operate products beyond their intended functionality, intentionally or otherwise, or any unauthorized repair. DEMA Eng
is not responsible for damages, injuries or expense incurred through the use of its products.
The above warranty is in lieu of other warranties, either expressed or implied. No agent of ours is authorized to provide
any warranty other than the above.
30 Day Billing Memo Policy
DEMA Eng maintains a unique factory exchange program to ensure uninterrupted service with minimum downtime. If
your unit malfunctions, call 1-800-743-7431, and provide our technician with Model and Serial Number information. If
we are unable to diagnose and solve your problem over the phone, a fully warranted replacement unit will be shipped,
usually within 48 hours, on a 30 Day Billing Memo.
This service requires a purchase order and the replacement unit is billed to your regular account for payment. The
replacement unit will be billed at current list price for that model less any applicable resale discount. Upon return of
your old unit, credit will be issued to your account if the unit is in warranty. If the unit is out of warranty or the damage
not covered, a partial credit will be applied based upon a prorated replacement price schedule dependent on the age
of the unit. Any exchange covers only the controller or pump. Electrodes, liquid end components and other external
accessories are not covered.

Table of Contents

Chemical Compatibility ............................................................3
Safety Equipment and Preparation ..........................................3
Location ...................................................................................4
Electrical ..................................................................................4
Plumbing ..................................................................................4
Priming the Pump ....................................................................7
Adjusting Feed Rate ................................................................7
Stroke Length ...........................................................................7
Calculating Output ...................................................................7
Optional Features ....................................................................7
Diaphragm Replacement .........................................................8
Suction and Discharge Check Valve Replacement .................. 8
Liquid End Diagram .................................................................9
Pump Replacement Parts ......................................................10
2