All GF Harvel piping products are manufactured in strict compliance with applicable industry standards and specifications to ensure consistent quality; GF Harvel gasket pipe is no exception. Since integral gasket bells are available on a variety of pipe dimensions, applicable standards are dependent on the pipe dimension chosen. All GF Harvel PVC pipe is manufactured from a Type I, Grade I PVC material per ASTM D1784. All GF Harvel gasket pipe utilizes flexible elastomeric seals for pressure pipe which, when properly assembled, meet the requirements of push-on joints per ASTM D3139. The gaskets used are manufactured in strict compliance with ASTM F477 requirements. GF Harvel SDR Series gasketed pipe is manufactured in strict compliance with ASTM D2241. GF Harvel PVC Schedule 40, 80 and 120 gasketed pipe is manufactured in strict compliance with ASTM D1785.
All gasket pipe shall be manufactured from Type I, Grade I Polyvinyl Chloride (PVC) material with a Cell Classification of 12454-B per ASTM D1784. The pipe shall be manufactured in strict compliance with ASTM D1785 when Schedule 40, 80 or 120 dimensions are specified, or shall be manufactured in strict compliance with ASTM D2241 when SDR Series dimensions are specified. All pipe shall consistently meet the applicable quality-assurance test requirements of these standards with regard to material, workmanship, burst pressure, flattening and extrusion quality. All gasket seals shall meet the requirements of ASTM D3139 for flexible joints for plastic pressure pipe, and the gasket material shall meet and/or exceed the requirements of ASTM F477 for elastomeric seals. All gasket pipe shall be produced in the USA using domestic materials, by an ISO 9001-certified manufacturer, and shall be stored indoors after production at the manufacturing site until shipped from the factory. This pipe shall carry the National Sanitation Foundation (NSF) seal of approval for potable water applications. All gasket pipe shall be manufactured by GF Harvel