Heat welding polyethylene
[DOC File]Asahi/America, Inc
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3. Purge welding apparatus of heat-degraded extrudate before welding. D. Hot Wedge Welding. 1. Welding apparatus shall be a self-propelled device equipped with an electronic controller which displays applicable temperatures. 2. Clean seam area of dust, mud, moisture and debris immediately ahead of hot wedge welder. 3.
[DOCX File]SECTION 23 21 14 - GROUND-LOOP HEAT-PUMP PIPING
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Ground loop heat exchange pipe shall be high-density crosslinked polyethylene manufactured using the high-pressure peroxide method of crosslinking (PEXa). Pipe shall conform to (a) ASTM F876 and (b) CSA B137.5 and (c) CSA C448 or (d) ISO 15875-1:2003, 15875-2:2003 or (e) DIN 16892 and 16893
[DOCX File]00000
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Fillet extrusion welding— Extrusion welding equipment and accessories shall be approved by liner manufacturer. To produce acceptable seams for the site-specific condition, the extrusion welder shall be calibrated once per day at the beginning of each seaming period. Seaming procedures shall be in accordance with liner manufacturer specifications.
[DOC File]Specifications for High Density Polyethylene Geomembrane
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F2620, Standard Practice for Heat Fusion of Polyethylene Pipe and Fittings. ... Socket-fusion, extrusion welding or hot gas welding of HDPE shall not be used for pressure pipe applications. Flanges, unions, grooved-couplers, transition fittings, and some mechanical couplers may be used to mechanically connect HDPE pipe without butt-fusion, if ...
[DOC File]Specifications for High Density Polyethylene Geomembrane
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For heat seaming, fusion welding techniques recommended by the manufacturer shall be used. The contractor shall not use heavy equipment to traffic above the geotextile without approved protection. ... Specifications for High Density Polyethylene Geomembrane ...
How to Weld Plastic (with Pictures) - wikiHow
The liner, welding rod, gaskets, metal battens, clamps, embed channel, and sealant shall conform to the requirements stated in NRCS Material Specification, MS-594, Geomembrane Liner, the applicable provisions in this specification, manufacturer’s recommendations and those shown on the drawings.
HDPE and LDPE Liners
ASTM D-2657-Guideline for Polyolefin Thermoplastic Butt Fusion Heat Welding. ASTM D-2737-Polyethylene Plastic Tubing (Copper Tube Size; Outside Diameter) ASTM D-2837- Method for Obtaining Hydrostatic Design Basis for Thermal Plastic Pipe Materials. ASTM D-3035-Polyethylene (PE) Plastic (DR-PR) Based on Controlled Outside Diameter (1/2” to 24”)
[DOCX File]Specification Section 23 21 13.13 - REHAU North America
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Impermeable closed-cell, cross-linked, ethylene vinyl acetate, low density polyethylene copolymer, nitrogen blown resilient, nonextrudable foam material with a UV stabilizer. ... The bond at the splice location is achieved by heat welding. Heatwelds and splices and other directional changes should be cut and made prior to seal installation.
Construction Specification 97—HDPE and LLDPE Liner
D3261-2015Standard Specification for Butt Heat Fusion Polyethylene (PE) Plastic Fittings for Polyethylene (PE) Pipe and Tubing . ... COMMON WORK RESULTS FOR HVAC, which includes welding qualifications. AS-BUILT DOCUMENTATION. SPEC WRITER NOTE: Coordinate O&M Manual requirements with Section 01 00 01, GENERAL REQUIREMENTS (Major NCA Projects) or ...
[DOC File]BASF Watson Bowman Acme | Home
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F2620-2013Standard Practice for Heat Fusion Joining of Polyethylene Pipe and Fittings. F2769-2014Standard Specification for Polyethylene of Raised Temperature (PE-RT) Plastic Hot and Cold-Water Tubing and Distribution Systems ... A.A certificate shall be submitted prior to welding of steel piping showing the Welder’s certification. The ...
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