ASTM F2946 - 12

    Standard Specification for PVC Hub and Elastomeric Seal (Gasket) Tee Connection for Joining Plastic Pipe to Insitu Pipelines and Manholes

    Active Standard ASTM F2946 | Developed by Subcommittee: F17.20

    Book of Standards Volume: 08.04


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    Abstract

    This specification covers the minimum performance and material requirements for a three piece tee connector for connection between plastic pipe and insitu pipes, manholes and wastewater structures in sanitary and storm sewer applications. The three piece seal system consists of a 4 through 30-in. PVC (polyvinyl chloride) hub pipe, an elastomeric seal (gasket) and a mechanical band. The system is installed in either a bored or cast hole opening in the host pipe or structure to a specific dimension that corresponds to the combined diameter of the PVC pipe outside diameter/tolerance and the elastomeric seal thickness. These tee connectors are designed to provide a non-pressure (gravity flow) watertight connection between the incoming pipe and an insitu pipe or manhole/structure to the limits defined in this standard. This specification deals with materials and manufacture, principles of design, basis of acceptance, test methods and requirements, rejection and rehearing, certification, markings, quality assurance, and packaging and package marking.

    This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

    Significance and Use

    1. Scope

    1.1 This specification covers the minimum performance and material requirements for a three piece tee connector for connection between plastic pipe and insitu pipes, manholes and wastewater structures in sanitary and storm sewer applications.

    1.1.1 The three piece seal system consists of a 4 through 30-in. PVC (polyvinyl chloride) hub pipe, an elastomeric seal (gasket) and a mechanical band (Fig. 1). The system is installed in either a bored or cast hole opening in the host pipe or structure to a specific dimension that corresponds to the combined diameter of the PVC pipe outside diameter/tolerance and the elastomeric seal thickness.

    Three-Piece Sealing System (Connector)
    FIG. 1 Three-Piece Sealing System (Connector)

    1.2 These tee connectors are designed to provide a non-pressure (gravity flow) watertight connection between the incoming pipe and an insitu pipe or manhole/structure to the limits defined in this standard.

    Note 1Connections covered by this specification are adequate for laboratory hydrostatic pressures up to 13 psi (30 ft of head) without leakage when tested in accordance with the provisions of this standard. Infiltration or exfiltration quantities for an installed system are dependent upon many factors other than the connections between incoming pipe and the insitu pipe or manhole structure, and allowable quantities may need to be covered by other specifications and suitable testing of the installed pipeline and system. Where connections are made to concrete manhole sections refer to Specification C923.
    Note 2These connectors are not resilient connectors, and as such, allow for only a limited amount of lateral movement due to the tight compression seal between the PVC hub and insitu pipe/structure. Since these connectors are not rigid fittings, a significant amount of axial movement can be accommodated, but the degree of intrusion into the host pipe/structure must be regulated to minimize the impact on flow characteristics or hydraulic design conditions.

    1.3 The following precautionary caveat pertains only to the test methods portion, Section 7, of this specification: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For a specific precaution statement, see Section 7.


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    A493 Specification for Stainless Steel Wire and Wire Rods for Cold Heading and Cold Forging

    A666 Specification for Annealed or Cold-Worked Austenitic Stainless Steel Sheet, Strip, Plate, and Flat Bar

    C822 Terminology Relating to Concrete Pipe and Related Products

    C923 Specification for Resilient Connectors Between Reinforced Concrete Manhole Structures, Pipes, and Laterals

    D1566 Terminology Relating to Rubber

    D1785 Specification for Poly(Vinyl Chloride) (PVC) Plastic Pipe, Schedules 40, 80, and 120

    D2665 Specification for Poly(Vinyl Chloride) (PVC) Plastic Drain, Waste, and Vent Pipe and Fittings

    D3034 Specification for Type PSM Poly(Vinyl Chloride) (PVC) Sewer Pipe and Fittings

    F412 Terminology Relating to Plastic Piping Systems

    F477 Specification for Elastomeric Seals (Gaskets) for Joining Plastic Pipe

    F679 Specification for Poly(Vinyl Chloride) (PVC) Large-Diameter Plastic Gravity Sewer Pipe and Fittings

    F1417 Practice for Installation Acceptance of Plastic Non-pressure Sewer Lines Using Low-Pressure Air

    F2487 Practice for Infiltration and Exfiltration Acceptance Testing of Installed Corrugated High Density Polyethylene Pipelines

    AWWA Standard

    C900 Polyvinyl Chloride (PVC) Pressure Pipe and Fabricated Fittings, 4 in. Through 12 in. (100 mm Through 300 mm), for Water Transmission and Distribution


    ICS Code

    ICS Number Code 23.040.80 (Seals for pipe and hose assemblies)

    UNSPSC Code

    UNSPSC Code


    DOI: 10.1520/F2946-12

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