The Scope of Work is furnishing all labor, materials, equipment and appliances necessary to complete installation of the Fortress Vertical Lift Gate(s) required


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NameThe Scope of Work is furnishing all labor, materials, equipment and appliances necessary to complete installation of the Fortress Vertical Lift Gate(s) required
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Specification Section 02825

VERTICAL LIFT

GATE







  1. GENERAL:

    1. SECTION INCLUDES:

      1. The Scope of Work is furnishing all labor, materials, equipment and appliances necessary to complete installation of the Fortress Vertical Lift Gate(s) required for this project in strict accordance to specifications and drawings. The Fortress gate and operator shall be specifically designed to complement each other as a system and be provided by a single manufacturer. Components (operator from one source and gate panel from another) assembled at the job site to form a system will not be approved.

    2. REFERENCES:

      1. Underwriters Laboratory Gate Operator Requirements (UL 325). See 2.01 C.

      2. ASTM F2200-05 Standard Specification for Automated Vehicular Gate Construction. See 2.01 C.

      3. American Welding Society AWS D1.2 Structural Welding Code. See 2.01 D.

      4. American Welding Society AWS D1.1/D1.1M Structural Welding Code. See 2.01 D.

      5. ASTM F 1043 Standard Specification for Strength and Protective Coatings on Steel Industrial Chain Link Fence Framework.

      6. ASTM 123 Standard Specification for Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel.

    3. SUBMITTALS:

      1. Product Data:

        1. Provide manufacturer’s catalog cuts with printed specifications and installation instructions.

        2. Furnish detailed sequence of operation (description of system).

        3. Deliver two (2) copies of operation and maintenance data covering the installed products, including name, address and telephone number of the nearest fully equipped service organization.

      2. Shop Drawings:

        1. Supply Shop Drawings showing the relationship of operating systems with other work. Include details of all major components. Include parts list showing manufacturer’s names and part numbers for the complete installation.

        2. Include complete details of gate construction, gate height, post spacing dimensions and unit weights of structural components.

      3. Certifications:

        1. The aluminum welders and welding process must be certified per section 2.01 D.

        2. The steel welders and welding process must be certified per section 2.01 D.

        3. Gates in compliance with ASTM F2200-05, Standard Specification for Automated Vehicular Gate Construction and operators are UL 325 listed per section 2.01 C.

  2. PRODUCTS:

    1. VERTICAL LIFT GATE SYSTEM MANUFACTURERS:

      1. The Vertical Lift Gate System shall be manufactured by Tymetal Corp., 2549 State Route 40, Greenwich, NY 12834 – (800) 328-4283.

      2. Approved Substitution – All other systems must be submitted to the design team in accordance with substitution requirements as set forth in the general provisions of the specification manual for approval prior to the bid date. Products submitted after the bid date will not be approved.

      3. Gate manufacturer shall certify gate is manufactured in compliance with ASTM F2200-05, Standard Specification for Automated Vehicular Gate Construction and the operators are UL 325 listed. See 1.02 B and 1.02 A respectively.

      4. Gate manufacturer shall provide independent certification as to the use of a documented Welding Procedure Specification and Procedure Qualification Records to insure conformance to the AWS D1.2 (aluminum) and AWS D1.1 / D1.1M (steel) Structural Welding Codes. Upon request, Individual Certificates of Welder Qualification documenting successful completion of the requirements of the AWS D1.2 and AWS D1.1 / D1.1M codes shall also be provided. See 1.02 C and 1.02 D.

    2. SYSTEM FUNCTION:

      1. Operation:

        1. System shall be designed so that gate movement from the closed position is impossible except by electric or mechanical means.

      2. Rate of Travel:

        1. The vertical lift gate operator shall be able to achieve a maximum gate speed of 2.2 ft per second, and shall be equipped with soft-start and soft-stop function to prevent shock load to the gate panel and gate operator.

    3. SYSTEM DIMENSIONS:

      1. Clear gate opening HEIGHT shall be: ____ ft-0 in. ( m)




      1. Clear gate opening WIDTH shall be: ____ ft-0 in. ( m)




      1. Gate Panel HEIGHT shall be: ____ ft-0 in. ( m)

      2. Gate Panel shall (not) include one additional foot of barbed wire.

    1. OPERATOR:

      1. Motor Size:

        1. The electrical motor shall be 1 HP, [208VAC, Three Phase] or [230 VAC, Three Phase] or [208 VAC, Single Phase] or [230 VAC, Single Phase] or [460 VAC, Three Phase] as produced by a nationally recognized manufacturer.

      2. AC Drive:

        1. The variable frequency drive unit shall allow for programmable soft-start and soft-stop features.

      3. Overload Protection:

        1. Motors shall be protected against overload either by a thermal or a current sensing over load device.

      4. Gear Box:

        1. The self-enclosed gear-head gearbox shall be manufactured as a single unit, and shall consist of a hardened steel machine cut worm and mating bronze gear running in oil bath.

        2. Oil shall be #634 specialty oil with a fluid pour point of –44 degrees F.

        3. The gearbox shall perform the functions of an adjustable clutching device and a manual disconnect by crank handle.

        4. Gear Box Heater shall be provided.

      5. Roller Chain:

        1. #60 roller chain shall be utilized.

      6. Manual Operation:

        1. A crank handle, located at ground level in the motor box, shall provide a two-step emergency procedure for manual operation:

          1. Unlock and open motor-box door.

          2. Fold out handle and crank gate opened and closed.

      7. Limits:

        1. The operator shall be equipped with an integral limit system, providing accurate settings to control the open and close positions of the gate, and shall not be affected by manual operation or motor removal.

      8. Control Circuit:

        1. 5VDC and operator controller shall be UL listed.

          1. Installation of Approved Non-Contact Safety Devices is required for primary entrapment protection for momentary contact applications. Two photo eye sets are provided for use inside and outside the gate opening for momentary contact applications. Constant pressure applications do not require the use of Non-Contact safety devices. Contact manufacturer for listing of other approved devices and various sequences of operation.

          2. The electrical contractor shall supply all exterior control wiring.

      9. Audio Alarm:

        1. This alarm shall have a dual function:

          1. The first function shall be as a warning prior to gate movement. When the motor control board recognizes a command, this alarm shall be activated (3) seconds before the motor is energized and the gate begins to move. This shall be continuously activated while the gate is in motion.

          2. The second function shall be as an entrapment notification alarm (for class III). This alarm shall sound as a result of a second activation of the external primary entrapment prevention device before an end limit (open or close) is reached. The pulsing rate of the alarm in the entrapment notification mode shall be faster than the pulsing rate when in the warning mode prior to gate movement.

      10. Main Power Disconnect Switch and Wiring Compartment:

        1. When this switch is in the OFF position, the main power shall be disconnected from the Variable Speed Drive, Motor Control Board and power transformer(s).

      11. Transformer:

        1. Operators shall have an isolated low voltage (24V) secondary circuit supplied by a Class II transformer (minimum of 40va) to provide separate power for external control devices.

      12. Auto Close Timer:

        1. Timer shall be adjustable from 2 to 60 seconds and provide an automatic closure of the gate from the full open position.

    2. MOTOR HOUSING

      1. Water Resistant Motor Box:

        1. The motor box shall be constructed of 10-gauge sheet steel (hot-dip galvanized per ASTM 123), gasketed and located at ground level for easy maintenance.

      2. Detention Hinges and Tamper Resistant Security Screws:

        1. Security hinges and screw shall be furnished to secure operator enclosure components.

      3. Motor Box Lock:

        1. Motor box shall be locked with a prison dead bolt for which three (3) paracentric keys shall be provided.

    3. SAFETY COVER:

      1. A safety cover of 16-gauge steel shall house each of the counterweights.

    4. SAFETY DEVICE:

      1. A “claw” type safety device shall be provided to stop the gate in the down direction in the event of cable malfunction.

    5. VERTICAL LIFT GATE:

      1. SYSTEM DIMENSIONS:

        1. Fortress Vertical Lift Gate System dimensions shall be as shown on the detail drawings.

      2. Gate Frame:

        1. The gate frames shall be fabricated from 6063-T6 aluminum alloy extrusions. The top member shall be a 3” x 5” aluminum structural channel/tube weighing not less than 3.9 lb/lf. The bottom member shall be a 2” x 5” aluminum structural tube weighing not less than 2.0 lb/lf. The outside vertical members shall be “P” shaped in cross section weighing not less than 1.6 lb/lf. Intermediate vertical members shall alternate between 2” x 2” and 1” x 2” in cross section, weighing not less than 1.1 lb/lf and .82 lb/lf respectively. Intermediates shall be spaced at a maximum of 3’ centers.

      3. Track and Trucks:

        1. The vertical lift gate shall operate between the flanges of the lifting columns to the required vertical clearance, and shall be held plumb between them by means of four self-aligning, 4-wheeled, ball-bearing truck assemblies and anti-racking cables. The truck assemblies shall ride in two vertically mounted tracks, extruded from 6105-T5 aluminum alloy, weighting a minimum of 2.7 lb/lf (4 kg/m).

      4. Diagonal Bracing:

        1. Diagonal “X” bracing of 3/16” (5 mm) minimum diameter stainless steel aircraft cable shall be installed throughout the gate to provide additional bracing and vertical adjustment.

      5. Gate Filler:

        1. Optional gate filler (example: chain link mesh, welded wire mesh or ornamental picket) may be added (weight increase over standard fabric to be authorized by manufacturer).

      6. Gate Finish:

        1. All exposed steel system parts shall be zinc galvanized.

    6. STRUCTURAL STEEL COLUMNS:

      1. Two W12 x 53 structural steel lifting columns of sufficient height for clearance requirements shall be flanged and fastened to concrete footings with anchor bolts.

    7. ANCHOR BOLTS:

      1. Each (2 required per gate) anchor bolt assembly shall consist of four (4) 1 ½” (38 mm) diameter bolts and tie rods for each column, and shall conform to ASTM A-36 grade steel with compatible hexagonal nuts and washers.

    8. CABLE AND BEARINGS:

      1. Two 3/8” (9.525 mm) galvanized steel cables, attached to counterweights, shall pass over a 10” (25 mm) diameter sheave located at the top of each column, and shall be fully supported by two of VF-2S-220 Browning pillow block bearings.

  1. EXECUTION:

    1. SITE INSPECTION:

      1. Final upgrades and installation conditions shall be examined. Work shall not begin until all unsatisfactory conditions are corrected.

    2. INSTALLATION:

      1. Equipment in this section shall be installed in strict accordance with the company’s printed instructions unless otherwise shown on the contact drawings.

      2. The complete system shall be adjusted to ensure that it is performing properly.

    3. SYSTEM VALIDATION:

      1. The system shall be operated for a sufficient period of time to determine that the system is in proper working order.

      2. System Acceptance Test:

        1. The Owner’s Representative shall be notified at least three working days prior to the test so arrangements can be made to have a facility representative witness the test.

        2. Test each system function step by step as summarized in controls specification section.

        3. Supply all equipment necessary for system adjustment and testing.



Note: Tymetal Corp. reserves the right to modify and/or make changes as deemed necessary without previous notice.

Vertical_Lift_Gate_R1.doc Page of 10/05/06

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