Exhibit_D_Ovivo_Mechanism_Components_(Revised).pdf

NORTHWEST WATER RECLAMATION FACILITY

SECONDARY CLARIFIER #4

135’ OVIVO TYPE C4D

REQUEST:

The City of St Petersburg. is requesting the supply of one new replacement secondary clarifier mechanism at the Northwest WRF.

DESIGN:

OVIVO proposes the supply one (1) 135 diameter C4D-CMD type spiral blade clarifier mechanism.

http://www.ovivowater.com

SCOPE OF SUPPLY: ITEM I – SECONDARY CLARIFIER – OVIVO TYPE C4D

Ovivo (formerly EIMCO Water Technologies) proposes mechanisms which are based upon our standard engineering practices and details. Specifics are shown below:

DESIGN CRITERIA AND DRIVE INFORMATION:

Number of Clarifiers 1

Clarifier Type C4D – Spiral scraper Secondary Clarifier

Clarifier Diameter 135’

SWD 15.15’ (approx.)

Freeboard 2’-0” ft (approx.)

Tank Bottom Slope 1:12

Walkway configuration Center support w/single side half bridge

AGMA Continuous Design Torque 33,400 ft-lb (Between 14 -18 ft/min tip speed)

Concrete Tank (New or Existing) exiting

NON-SUBMERGED COMPONENTS (INCLUDED):

COMPONENT TYPE COMPONENT DESCRIPTION

Walkway Superstructure (Truss Style)

3ft wide walking surface. Half bridge design extending from tank wall to center platform. Truss members to serve as handrail system

Platform Superstructure 9ft square with approximately 24” drive clearance

Walkway walking surface type ALUMINUM -- 1-1/4" I-Bar grating

Platform walking surface type ALUMINUM – 11-1/4" I-Bar grating

Handrail design/type ALUMINUM – Platform ONLY. 1-1/2" diameter 2-rail with 4" toe channel, field/sub-assembled mechanical system. No handrail along walkway. Walkway truss members to serve as handrail system

Non-Submerged construction materials (unless otherwise noted)

Stainless steel

SUBMERGED COMPONENTS (INCLUDED):

COMPONENT TYPE COMPONENT DESCRIPTION

Center column (Stationary) 48” diameter x ¼” thick with (4) influent port sized at 135% of the column area; with CMD adapter.

Center cage (Rotating) 5ft square.

Feedwell (Rotating) 40ft diameter x 7.5ft depth x 3/16” thick w/ supports from truss rake arms.

EDI (Rotating) 13ft diameter x 3ft depth x 1/4” thick w/ tangential scoop outlet ports.

Sludge raking arms (Rotating)

Two (2) full radius and (2) partial radius (square box truss design) with 3/16” thick spiral raking blades and 20 gauge 304 SS attachment squeegees.

Sludge manifold (Rotating) Approx. 7ft-4in diameter x ¼” thick (Size to be confirmed by tank floor layout).

Skimming Design (Stationary and Rotating)

One (1) 8ft scum box(Stationary) with a mechanical flush actuated by an adjustable actuator from the skimmer arm (Rotating) and two (2) skimming blade/mechanism systems (Rotating).

Submerged construction materials (unless otherwise noted)

Stainless steel.

OTHER COMPONENTS, SERVICES AND INFORMATION (INCLUDED):

-Drive Mechanism – C60LT

-Anchor bolts in 316 stainless steel.

-Assembly fasteners in 316 stainless steel.

Effluent launders and 316 stainless steel launder brackets

-Effluent weirs and scum baffles

-Density current baffles

-Electrical controls or control panels, push button stations, alarms, starters, mounting plates or brackets, conduit, wiring, mounting channels, photocells, etc… other than clarifier local control panel.

-Field welding. Minimal field welding will be necessary.

-VFD controller.

-Lubricants.

-Effluent Trough

-Local control panel

-Operation and Maintenance manuals.

-Service trips as noted in the “Field Service” section of this proposal.

-Surface preparation and paint as noted in the “Surface Preparation and Paint” section of this proposal.

-Any field measurements required for provision of this equipment.

-Anything else not explicitly included in the list of items included above.

-Freight, FCA factory, freight allowed to jobsite.

ITEMS NOT INCLUDED (But not limited to the following):

-Anchor templates and grout shield. We provide bolt circle dimensions for the center column and anchor positions.

-Demolition or erection services.

-Finish painting.

-Lamp posts.

-Weir, launder or baffle cleaning equipment.

-Stairways, access walkways, interconnecting walkways, gratings, etc., outside tank.

-Handrail around tank.

-Scum piping below or flexible connector to scum box stub nozzle.

-Dissimilar metals protection of any kind and for aluminum handrail and grating mounted to steel walkway members. Mastic/sealant/packing is also by others.

-Tank, platform or feedwell covers of any kind.

-Scum spray system

WEIGHTS:

APPROXIMATE TOTAL WEIGHT OF ONE (1) MECHANISM 54,000 LBS.

APPROXIMATE WEIGHT OF THE HEAVIEST SINGLE COMPONENT 6,100 LBS.

FIELD SERVICE:

Our proposal includes the service of a qualified service engineer for the following:

- Two (2) Days / Two (2) Trips at the site to assist in adjusting, servicing, and checking out these mechanisms, and in training the operators in maintenance, troubleshooting, and repair of the equipment. Static torque testing is included in these services.

- Additional service days can be purchased at the current rate.

SURFACE PREPARATION AND PAINT

Please see below for a rough visual representation of a similar unit to the proposed mechanism:

COMPONENTS SURFACE

PREP.

PRIME

COAT

2ND COAT 3RD COAT

DRIVE UNIT SSPC-SP-06 Tnemec N69 Tnemec N69 Tnemec Endura-shield

GEARMOTOR STANDARD COATING BY GEARMOTOR MANUFACTURER

SUBMERGED STEEL Stainless steel

NON-SUBMERGED

STEEL

Stainless steel

BUDGET PROPOSAL PRICING

ITEM EQUIPMENT

ESTIMATED

SHIP DATE*

PRICE

I

(1) 135ft dia. Spiral blade clarifier

TYPE - C4D-CMD

ESTIMATED LEAD TIMES

*Ovivo’s estimated timeline for submittal drawings is ten (10) weeks after Purchaser’s receipt of Ovivo’s written acknowledgement of an approved purchase order. Ovivo’s estimated timeline to start shipping the products is about twenty-eight (28) weeks after receipt of approved drawings from Purchaser.