Specification for Anti.doc

Maine Department of Transportation

Bid Request

For

Maine Department of Transportation

Anti-Ice / Pre-Wetting

Control Spray System

Specification for Anti-Ice / Pre-Wetting

Control Spray System

It is the purpose and intent of this specification to describe an Anti-ice / Pre-wetting spray system, ground speed controlled, capable of applying a 23% salt brine solution at the rate of 50 gallons per lane mile, over 1, 2, or 3 lanes, at 50 miles per hour. Lane selection shall be made from cab mounted controls. The unit shall not apply salt brine when there is no movement and the application will commence as soon as movement begins. The capacity of the unit shall be a minimum of 1,800 gallons on a self loading skid frame capable of being loaded into a 10 yard dump body. The pumps on these units shall have the capability to draft from a storage tank and the plumbing arranged so the tank or tanks can be filled by a D.O.T. stationary pump without going through the tank mounted pump. Installation of the Anti-ice / Pre-Wetting system shall be bid as a separate item.

1. Tank System

1.1 Tank or tanks shall be made of molded high density cross-linked polyethylene resin with UV protection.

1.2 The tank or tanks shall be designed to contain and transport 1.9 specific gravity liquids.

1.2.1 Tank or tanks shall have a minimum of a 16 inch dia. man way opening with screw type vented lid.

1.2.2 Tank or tanks shall be a natural translucent color so that the liquid level can be seen inside the tank.

1.2.3 The tank or tanks shall be cylindrical-shaped. For a single tank, dimensions shall be approximately 62 inches in dia. x 152 inches long. If a dual tank system is offered, dimensions shall be approximately 62 inches in dia. x 76 inches.

1.2.4 Tank or tanks shall be baffled or have a wave action damping system.

1.2.5 Tank or tanks shall have molded-in gallonage markers.

1.2.6 If dual tanks are offered, each tank shall have its own sump and drain completely, and have a sufficient vent to meet a 200 gallon per minute pump requirement.

1.2.7 Tank or tanks shall be securely mounted to the skid frame with four 1 ½” dia. steel hoops. Ny-lock nuts shall secure the bottom of the steel hoops to the skid frame.

1.2.8 Tank or a combination of not more than 2 tanks shall have a capacity of 1,800 gallons plus or minus 150 gallons.

1.3 Tank shall sit in a cradle or tank legs, have full bottom contact to skid frame.

1.4 The tank or tanks shall have a 2” gravity drain completely from the connection to the sump.

1.5 The tanks or tank shall have a valve as close to each sump as possible, for stopping material flow to allow servicing of the pump /motor assembly or other components without draining all material from the unit.

2. Self-Loading Skid Frame

2.1 Skid frame shall be self-loading style with rotating steel front legs, steel wheels at the front of the frame, individual telescoping steel rear legs, and steel frame guides.

2.2 Frame shall be constructed of a minimum of 6 x 8.2 steel side rail channels, running full length on each side with similar cross members, running under each tank leg across the frame. Proper tank stops shall also be included.

2.3 Front legs shall rotate on 1 ¼” high, strength-grade 8 bolts and shall be constructed of 3” square steel tubing with 6”x 4 ½” x 1/4” thick steel base plates at the bottom of each front leg. Base plates shall be cut with one tapered side to avoid interference with skid frame when rotating up.

2.4 Rear legs shall telescope up individually. Rear legs must be light enough to allow one person to lift up each leg without binding.

2.5 Rear upper shall be constructed from 4” x 1/4” square steel tube.

2.6 Rear lower leg shall be constructed from 3 ½ x 3/16 square steel tubing.

2.7 Rear lower legs shall have a base plate at the bottom of each leg constructed from 6” x 6” x 1/4” thick steel plate.

2.8 Front end of frame shall include two 4” steel caster wheels with grease fittings and 4 steel guides shall be included to guide unit into dump body when backing up. Two tailgate latch pins shall also be included.

2.9 Complete frame shall be painted with two coats of non-leaded primer and followed with two coats of non-leaded enamel black paint.

3. Plumbing and Boom System

3.1 All plumbing components shall be of corrosion-resistant materials including reinforced polypropylene and stainless steel.

3.2 All hoses to include suction and discharge shall be of EPDM (ethylene propylene diene monomer) with thermal plastic helix and internal braiding and 100% EPDM tube.

3.3 Maximum use of polypropylene flanged fittings shall be utilized to allow for quick and easy maintenance of the plumbing system.

3.4 The pump shall be a 2” x 1 ½” cast iron centrifugal pump with integral hydraulic-drive motor.

3.5 The pump shall provide a maximum flow rate of 200 gallons or more per minute and will also provide 175 gallons per minute at 40 PSI (at 10gallons per minute hydraulic oil flow rate at 1,800 PSI).

3.6 The pump shall be a Hydro 9304 series with nylon impeller and severe duty mechanical seal with silicon-carbide faces or equivalent.

3.7 The pump, valving, and circuitry shall be able to maintain a constant application rate regardless of number of lanes selected one, two, or three, or speed of the truck up to 50 miles per hour.

3.8 A pressure gage shall be installed on the outboard side of the pump to match maximum output of pump.

3.9 A 2” drain/fill valve shall be located at the rear of the unit and shall include a 2” female camlock and plug for quick hook up.

3.10 System shall include a 12 volt manifold valve assembly with full 1” ported valves constructed of polypropylene with stainless steel ball, stems, and hardware.

3.11 Valve assembly inlet shall be 1 ½” minimum.

3.12 Each valve shall include a high torque motor with auto reset circuit breaker and DPDT (Double-Pole Double Throw) relay inside a water- proof polypropylene NEMA (National Electrical Manufacturers Association) 4X or 6P rated housing with valve position indicator.

3.13 Valve assembly shall be rated at 150 PSI working pressure and shall include a mounting bracket.

3.14 Tank shut off valves shall be provided at each tank sump.

3.15 A polypropylene flow meter capable of metering a minimum of 13.5 gallons per minute and a maximum of 185 gallons per minute shall be installed between the pump and the valve assembly.

3.16 Flow meter shall be pulsed to a maximum of one pulse per 10 gallons of flow through the meter, and as low as one pulse per 1 gallon of flow.

3.17 Flow meter shall have inlet and outlet ports the same size as the pump outlet.

3.18 A filter Y type with a #6 mesh screen shall be installed between the pump and the flow meter. The filter shall have the same size inlet and outlet as the pressure side of the pump.

3.19 The boom system shall be constructed of 1 ¼” stainless steel tube mounted to the rear of the spray system with stainless steel clamps.

3.20 The boom system shall be adjustable from 1’2’’ to 2’6” above the pavement. The center section of the boom shall include a 3- way, valve to allow the operator to direct flow to either two stainless steel flooding nozzles for anti-icing or to 15 stainless steel solid stream nozzles for de-icing.

3.21 Left and right lane nozzles shall include stainless steel, offset nozzles with brass bodies and caps for effective coverage of the entire left and right lanes being 12 feet in width.

3.22 All nozzles will be balanced to ensure the anti-icing liquid is distributed to all lanes being sprayed.

4. Automatic Programmable Control System

4.1 The system shall be set up to allow it to be easily connected to both a Cirus Smartspread and or a Compuspread 440 electronic spreader control system.

4.2 Hydraulic oil and flow for all motors, pumps and valves shall be provided from the vehicle that the system is mounted in, through the Cirus or Comuspread electronic spreader controls.

4.3 D.O.T. will supply hydraulic oil connections to the rear of the truck.

4.4 Dummy ends shall be supplied for electrical connections when in use.

5. Training

5.1 One day of operator training shall be provided at Fleet Services in Augusta.

5.2 One day of training shall be provided for Fleet Services personnel on the installation and service of the unit.

5.3 There shall be two operators’ manuals, two service manuals, and two illustrated parts manuals supplied per unit. These manuals shall include plumbing and wiring schematics.

6. General

6.1 It is the responsibility of the bidder to inspect trucks and stationary fill systems, to assure the compatibility of the equipment.

6.2 The entire unit shall be warranted for one full year against parts, materials, workmanship, and manufacturers defects from the in- service date.

6.3 Bidders are required to provide sufficient information with their bid, such as manufacturer’s brochures, etc. and to certify that they have service facilities in Maine, staffed with trained service technicians and stocked with repair parts for the equipment which is bid. Failure to provide this information may cause the bid to be rejected. The DOT reserves the right to reject any and all bids.

6.4 The unit must be designed and constructed for extreme or heavy duty use.

6.5 Upon delivery of unit or units all necessary paper work such as title, dealer’s certificate, and invoices shall accompany unit or units.

6.6 Exceptions to specifications shall be listed on a separate paper and noted as exceptions and submitted with bid proposal. If exceptions are not listed as such it shall be considered that the vendor will comply with all specifications as listed.

6.7 All bid pricing to include shipping and delivery to Maine DOT Fleet Service, 105 Capitol St. Augusta Me. 04330

6.8 Maine D.O.T. reserves the right to pre-inspect the equipment before delivery.

SPECIFICATION DIFFERENCES: _______________________________________________________

Descriptive literature may be submitted with bid

YR/MAKE/MODEL BIDDING:________________________________

BIDDER:____________________CONTACT:_________________TEL:__________

PRICE FOR Anti-Ice / Pre-Wetting Control Spray System ONLY:

PRICE FOR INSTALLATION: $____________________

Note: Depending on cost, DOT/Fleet may install on trucks If you have a question regarding this RFQ, you must submit your questions thru the Question and Answer link on the Solicitation Details View page. Your answer will appear there as well. It is the vendor’s responsibility to log in to view all questions and answers posted there. Questions and Answers obtained any other way will not be valid for this RFQ.

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