Manufacturing Quality Iron Products for the Water and Wastewater Industries, Since 1981

Terms
800.999.3009

PVC Stargrip® – Series 4000

Mechanical Joint Wedge Action Restraint for Plastic Pressure Pipe (Sizes 3" - 48")

Information

The PVC Stargrip® Mechanical Joint Restraint System is an exceptional restraint system for mechanical joint fittings (AWWA C153 or C110), valves, fire hydrants on a variety of plastic pressure pipes.

  • Sizes 3″ – 12″ consists of G2 design.
  • Can be used on 4″-48″ AWWA C900 PVC, 4″-18″ AWWA C909 PVCO and AWWA C906 HDPE pipes along with 3″-12″ IPS OD* ASTM D2241 PVC pipe. (*A transition gasket is required on IPS Plastic Pipe). See Tables A and B for further details.
  • Sizes 4″-12″ are listed with Underwriters Laboratories, approved by Factory Mutual Research, and tested to and meets the requirements of ASTM F1674.
  • Safety factor is twice (2:1) the standardized pressure rating listed in Tables A and B in the catalog.
  • Offers 5° of deflection on 3″-12″ AWWA C900, 3° on 14″-24″, 2° on 30″-36″ and 1° on 42″-48″.
  • Standard gland color is Coral Red and is made from high strength Ductile Iron per ASTM A536 Grade 65-45-12 and is compatible with all Mechanical Joints that conform to ANSI/AWWA C111/A21.11.
  • Eliminates the need for tie rods and thrust blocks
  • Fewer wedges and lower wedge-bolt torque results in quicker and easier installation (see specifications and tables C, D & E in the catalog).
  • Sizes 4″-12″ uses a spacer that is easily removed when restraint is used on IPS Plastic pipe.
  • Curved wedges reduce the amount of localized pipe deformation.
  • The gland’s larger inside diameter allows restraint to be installed on pipe with more ovality.
  • Improved design of the wedge bolts prevents over torquing which can damage PVC pipe.
  • For sizes 3″-12″ and 42″ -48″ wedges are mechanically attached to wedge bolts, which eliminates the possibility of falling out during shipping and handling.
  • US Patent# 9,822,910 applies to sizes 3″-12″ and 42″-48″.

Restrainer mechanism shall be integrated into the design of the restraint gland. As the mechanism is activated, multiple wedge action shall be imparted against the pipe OD 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 head. 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 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 for C900 PVC, C909 PVCO and IPS PVC Pipe shall be Star® Pipe Products second Generation PVC Stargrip® Series 4000 or equal.

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