Del ozone MPI-300, Installation & Operation Manual

5

MPI-300 

Installation & Operations Manual

SECTION 5 REPLACEMENT PARTS 
AND ORDER INFORMATION

5A. Ordering information:

For replacement parts call DEL at 

1-800-676-1335 

or for international call 

805-541-1601.

Be prepared with the following information:
· Customer Name   

· Customer Address 

· DEL Model Number 

· DEL Serial Number 

· Date Purchased   

· Proof of Purchase

5B. Standard replacement parts list:

1.  Compressor rebuild kit .......................2-0875-01
2.  Cabinet Intake Air Filter Element ............. 7-1153
3.  Cabinet Exhaust Air Filter Element ......... 7-1152 
4.  Compressor Air Filter Cartridge ............... 7-1132
5.  Ozone Generation Cell ............................ 9-0925

SECTION 6 OZONE OVERVIEW 
AND SAFETY PROCEDURES

6A. Ozone Use and Technology Overview 

6A-1.  Relative Strength of Ozone
The following compares the strengths of several 
common oxidizing reagents:

Oxidizing Reagent                    EOP vs. Cl

2

Elemental Fluorine ............................2.25
Hydroxyl Radical ...............................2.05
Ozone  ...............................................1.52
Hydrogen Peroxide  ...........................1.30
Hypochlorite  .....................................1.10
Chlorine  ............................................1.00
Chlorine Dioxide  ...............................0.93
Bromine  ............................................0.57

The following compares the CT values for water of 
ozone versus forms of chlorine:

Microorganism

Disinfectant

Ozone 

(pH 6-7)

Preformed 
Chlormine 

(pH 8-9)

Chlorine 

Dioxide 

(pH 6-7)

Free  

Chlorine 

(pH 6-7)

E. Coli

0.02

95-180

0.4-0.75

0.034-0.05

Polio 1

0.1-0.2

770-3740

0.2-6.7

1.1-2.5

Rotavirus

0.006-0.06

3810-6480

0.2-2.1

0.01-0.05

G. lamblia cysts

0.5-0.6

--

--

47->150

G. muris cysts

1.8-2.0

1400

7.2-18.5

30-630

6A-2.  Materials Selection

Materials

Aqueous Ozone  

0-3 ppm Freshwater

Metals:

Copper

Brass

316L Stainless Steel

5
5

5555

Plastics:

ECTFE (Halar)

PTFE (Teflon)

PVC (rigid)

PVC (flexible)

PVDF (Kynar)

5555
5555

555
555

5555

Elastomers:

FPM (Viton)

555

(gasket)

LEGEND: 

5

 = Not Recommended  

55

 = Fair   

555

 = Good  

5555

 = Very Good

6A-3. Micro-Flocculation and Oxidation
Ozone oxidizes the following metals (know as 
micro-flocculation), enabling their removal via 
filtration:

•  Iron
•  Copper
•  Manganese
•  Zinc
•  Arsenic

Ozone neutralizes “nuisance” compounds - most 
commonly, hydrogen sulfide.

6A-4. Factors Affecting Sanitation
The following factors will affect the ability of ozone 
to effectively act as a sanitizer:

•  Type and level of contaminant
•  Physical/chemical parameters of the environs
•  Exposure time
•  Temperature
•  Concentration
•  Water chemistry and pH
•  Cleanliness
•  Microbial attachment

6B.  General Safety Information

6B-1.  Ozone Properties

•  Colorless to blue gas (greater than -169°F)
•  Characteristic odor often associated with electri-

cal  sparks or lightning in concentrations of  ..less 
than 2 PPM

•  Severe irritant above 1-2 PPM
•  Generally exists as a gas
•  Highly chemically reactive
•  Non-flammable, non-carcinogenic
•  Hazardous polymerization can occur
•  Spontaneously decomposes to oxygen gas