Phone: 800-257-5183 Web: www.campbellmfg.com Fax: 610-367-5675 Email: [email protected] Monoflex Product Catalog ENGINEERING SPECIFICATIONS PVC FLUSH THREAD MONITOR WELL SCREENS AND CASINGS 1. All PVC well screens and casings used on this project shall be manufactured by Monoflex and follow recommendations of ASTM F-480: “Standard Specification for Thermoplastic Well Casing Pipe and Couplings Made in Standard Dimension Ratios (SDR), SCH 40 and SCH 80.” 2. PVC materials used to produce the raw PVC pipe shall meet ASTM Standard D-1784: “Specification for Rigid Poly (Vinyl Chloride) (PVC) Compounds and Chlorinated Poly (Vinyl Chloride) (CPVC) Compounds for PVC Normal Impact, Type I Grade I (1120), cell classification 12454-B.” 3. The finished schedules 40, 80, and 120 raw pipe shall meet the requirements of ASTM Standard D-1785: “Specification for Poly (Vinyl Chloride) (PVC) Plastic Pipe, Schedules 40, 80, and 120.” In addition, both the raw material and the finished raw pipe shall be approved by the National Sanitation Foundation (NSF) for use in potable water applications. 4. The PVC pipe used to produce the well screens and casings shall be made from virgin plastic produced by the original compounder. 5. The pipe shall be homogeneous throughout and essentially uniform in color, opacity and density. The inside and outside surfaces shall be glossy in appearance and free of chalking, sticky or tacky material and visually free of oils, grease, dust and marks imparted as a result of the manufac- turing process. In addition the pipe walls shall be free of ink, cracks, holes, blisters, voids, foreign inclusions, or other defects that are visible to the naked eye and that may affect the wall integrity. Machined slots or holes deliberately placed in the pipe are acceptable. 6. The outside diameters, wall thicknesses and out of roundness tolerances shall fall within the guidelines of Tables 1 & 2 of the ASTM F-480 Standard Specification when measured in accordance with Test Method D-2122. 7. All flush thread materials must be slotted and threaded without the use of any type of liquid coolant. Air is the only acceptable coolant. 8. Well screens 1/2” through 5” are to be slotted on 1/8” spacing. Well screens 6” and larger are to be slotted on 1/4” spacing unless otherwise specified. ALL well screens .040 slot and larger will be slotted on 1/4” spacing unless otherwise specified. 9. All screens and casings shall be nominal length except for 2” and 4” sch. 40 and 6” sch. 80 which shall be laying length. The term “laying length” refers to the overall length less the length required to complete the assembly. 10. The threads per inch for the various diameters and schedules of flush thread materials shall be the same as that produced by Monoflex, Bechtelsville, Pennsylvania or approved equal. 11. All flush thread screens & casings shall be supplied in individual polyethylene bags hermetically sealed at BOTH ends. Said products shall be shipped in cardboard boxes with properly secured ends. Each box shall display a color coded label containing a full description of the product inside. Said label must indicate the number of pieces per box, the threads per inch, the date of packaging, the signatures of the packer and QC inspector and show a drawing of the product. Page 8
