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PVC Stargrip® – Series 4000HD

Mechanical Joint Wedge Action Restraint for Plastic Pressure Pipe (Sizes 3" - 12")

3D rendering of Series4000HD, a circular mechanical fastener with six evenly spaced blue bolts and nuts around the perimeter on a reddish-brown body, marked with various alphanumeric codes and symbols.

Information

The PVC Stargrip® Mechanical Joint Restraint System is a unique product with a proven design that provides an exceptional restraining system for mechanical joint fittings (AWWA C153 or C110), valves, fire hydrants on a variety of plastic pressure pipes.

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  • The design has been proven in the market since 1992.
  • Can be used on AWWA C900 PVC pipe, IPS PVC pipe, AWWA C909 PVCO pipe, and HDPE pipe.  See pressure rating table for approved DRs and sizes.  Plastic pressure pipes manufactured to an IPS diameter regimen will require a transition gasket. HDPE pipe requires use of stainless steel pipe stiffener.
  • Gland is made from high strength Ductile Iron per ASTM A536 Grade 65-45-12 and is compatible with all Mechanical Joints conforming to ANSI/AWWA C111/A21.11.
  • Eliminates the need for tie rods and thrust blocks
  • Listed with Underwriters Laboratories and approved by Factory Mutual research in sizes 4″-12″.
  • Tested to and meets the requirements of ASTM F1674 through 12″.
  • The safety factor is twice (2:1) the standardized pressure rating listed in Tables A and B in the catalog.
  • Will fit any Mechanical Joint configuration, meaning compatibility with different types of installations.
  • PVC Stargrip® offers 5º deflection through 12″.
  • Larger ID allows easier installation on out-of-round pipe.
  • Torque limiting bolts are designed to prevent over torquing.
  • All sizes have curved wedges that do not flatten pipe.
  • Standard gland color is Coral Red.

Restrainer mechanism shall be integrated into the design of the follower gland. As the mechanism is activated, multiple wedging action shall be imparted against the pipe increasing its resistance as internal pressure increases. After burial of the restraining mechanism, joint flexibility shall be maintained.

The actuating bolt shall be threaded into the gland and have a 1-1/4″ hex operating nut. The actuating bolt system shall have a torque-limiting head designed to break off at preset torque levels, thus insuring proper action of the restraining device. After removal of the torque-limiting head, a secondary hex head shall remain to facilitate the removal and re-assembly of the gland. Glands, bolts and wedges shall be manufactured of high strength ductile iron in accordance with ASTM A536 Grade 65-45-12 requirements.

Applicable dimensions conforming to ANSI/AWWA C111/A21.11, C110/A21.10 and C153/A21.53 and shall be incorporated into the design so that the device facilitates use with standard mechanical joint sockets.

The restraining mechanism shall have a pressure rating as stated in most current catalog and shall have a safety factor of at least 2:1. The restraining device shall be Star® Pipe Products PVC Stargrip® Series 4000HD or equal.

*Please refer to the catalog for further details and specifications.

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