Joint Restraints (PERMA GRIP) for HDPE (polyethylene) (IPS, C900)  with internal  stiffener

Each MIDCO HDPE PERMA GRIP Joint Restraint Kit includes:

  •  One RG unit: one brass grip ring; one epoxy powder coated iron gland
  • One gasket for:
    • IPS one transition gasket
    • C900 one standard MJ gasket
  •  T-Bolts and nuts zinc plated (quantities vary by pipe size)
  •  One high grade 304 stainless steel internal stiffener

Stiffeners available in SDRs:  11,  13.5,  17

Individual stiffeners are also available for use with midco joint restraints.

MATL SPECS FOR MIDCO PERMA GRIP COMPONENTS: Glands – ASTM A 536 Grade 65-45-12 Ductile Iron and Epoxy Powder Coated to 4 mil thickness. Series 3000 (Style 30) Grip Ring – C87850 Bronze. Series 4000 (Style 40) Grip Ring – ASTM A 536 Grade 80-55-06 Ductile Iron Heat Treated to 350-400 BHN. T-Bolts and Nuts – ASTM A 242. Internal stiffener 304 stainless steel.

All MIDCO Municipal Products are fully compliant with the California Lead Plumbing Laws, NSF/ANSI 61 Annex G, ANSI Standard 372, the National Lead Free Law, The Safe Drinking Water Act, and Public Law 111-380.

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