SECTION
11203
FINGER
WEIR PANS
PART
1 GENERAL
1.1 SECTION INCLUDES
A.
Finger
weir pans.
1.2 REFERENCES
A. ANSI/AWWA F102 -
Matched-Die-Molded, Fiberglass-Reinforced Plastic Weir Plates, Scum Baffles,
and Mounting Brackets; American Water Works Association.
B. ASTM D 256 - Standard Test Methods
for Determining the Pendulum Impact Resistance of Notched Specimens of
Plastics.
C. ASTM D 570 - Standard Test Method
for Water Absorption of Plastics.
D. ASTM D 638 - Standard Test Method
for Tensile Properties of Plastics.
E. ASTM D 696 - Standard Test Method
for Coefficient of Linear Thermal Expansion of Plastics Between -30 degrees C
and 30 degrees C.
F. ASTM D 790 - Standard Test Methods
for Flexural Properties of Unreinforced and Reinforced Plastics and Electrical
Insulating Materials.
G. ASTM D 2583 - Test Method for
Indentation Hardness of Rigid Plastics by Means of a Barcol Impressor.
1.3 SUBMITTALS
A.
Submit
under provisions of Section 01300.
B.
Product
Data: Test results of fiberglass
reinforced plastic laminate.
C.
Shop
Drawings: Show:
1. Critical dimensions, jointing and
connections, fasteners and anchors.
2. Materials of construction.
3. Sizes, spacing, and locations of
structural members, connections, attachments, openings, fasteners, and loads.
D.
Manufacturer's
installation instructions.
1.4 DELIVERY, STORAGE, AND HANDLING
A. Store products indoors and protect
from construction traffic and damage.
PART 2 PRODUCTS
2.1 MANUFACTURER
A. Provide products manufactured by
Warminster Fiberglass Company; P.O Box 188, Southampton
PA 18966-0188; ASD. Tel. (215)953-1260,
Fax. (215) 357-7893. www.warminsterfiberglass.com
B. Requests for substitution will be
considered in accordance with provisions of Section 01600.
C.
Substitutions: Not permitted.
2.2 FINGER
WEIR PANS (You choose color and type of stainless steel)
A.
Fiberglass
Components:
1. Weir pan system: Adjustable with separate weir plates to
control rate and uniformity of flow over "V" notches.
2. Weir plates: 1/4 inch thick with 2 inch deep 90 degree
V-notches on 4-1/2 inch centers.
Attached to pan with 3/8-16 x 1-1/4 inch stainless steel hex head cap screws.
3. Weir pan support brackets.
4. Pan spacing: As indicated on the drawings.
5. Scum baffle plates: 1/4 inch by 12 inches, with mounting holes
for attachment to support brackets; lap plates at each scum baffle joint; mount
with 3/8 inch flat head screws with heads flush or below the surface of the
inner face of the baffle.
6. Scum baffle support brackets.
7. Brackets: 3/16 inch thick by 4 inches wide; slotted to allow for at least
1-1/2 inch adjustment in all directions.
B. Material: Matched metal die molded fiberglass.
1.
Color: White, or Turquoise.
2.
Tensile
strength (ASTM D 638): 14,000 psi.
3.
Flexural
strength (ASTM D 790): 25,000 psi.
4.
Flexural
modulus (ASTM D 790): 1,000,000 psi.
5.
Impact,
notched, Izod (ASTM D 256): 15.0
ft-lb/in.
6.
Barcol
hardness (resin-rich surface) (ASTM D 2583): 40 minimum, average.
7.
Water
absorption, (ASTM D 570): 0.2 percent
at 24 hrs.
8.
Coefficient
of thermal expansion, average (ASTM D 696): in/in/degree F.
9. Test coupons prepared in accordance
with ASTM D 618.
C. Assembly Hardware and Wall
Anchors: Type 304 stainless steel.
D. Assembly Hardware and Wall
Anchors: Type 316 stainless steel.
PART
3 EXECUTION
3.1 EXAMINATION
A. Verify that dimensions are correct
and project conditions are suitable for installation. Do not proceed with installation until unsatisfactory conditions
have been corrected.
3.2 INSTALLATION
A. Install products in accordance with
manufacturer's instructions.
B. Ensure that products are installed
plumb and true, free of warp or twist, within tolerances specified by the
manufacturer and as indicated in the contract
documents.
C. Install in accordance with approved
shop drawings and in true and proper alignment.
D. Adjust weir plate elevation for
flow indicated or as directed by the Engineer.
3.3 ADJUST AND CLEAN
A.
Clean
surfaces in accordance with manufacturer's instructions.
B.
Remove
trash and debris, and leave the site in a clean condition.
END
OF SECTION