• Maximum working pressure 300 psi (20.7 bar) depending on coupling size and schedule of pipe
• All housings, gaskets and bolts identified by SCI logo
• 100% magnetic particle inspection of each bolt
• Each bolt has a minimum tensile strength of 110,000 psi
• Gasket Grade E - EPDM (green stripe) -30˚F (-34˚C) to +230˚F (+110˚C)
• Gasket Grade T - Nitrile (orange stripe) -20˚F (-29˚C) to +180˚F (+82˚C)
• Other gasket materials available by special order
• Ductile iron housings conform to ASTM A-536 Grade 65-45-12
• Groove dimensions to AWWA C-606
• Finishes: Orange enamel paint
- Hot dipped galvanized conforming to ASTM A-153
COOPLOK Grooved Submittal - 65RC 66RC - Reducing Coupling - 2017
7401 RigidLOK® Coupling
7401-2 Gruvlok RigidLOK Coupling
7401SS Stainless Steel Rigid Coupling
7400 Rigidlite® Coupling
74-CL & 74-SL Gruvlok Rigid Coupling
COOPLOK Lightweight Rigid Coupling with Triple Seal Gasket
COOPLOK Lightweight Rigid Coupling with “C” Gasket
COOPLOK High Pressure Rigid Coupling with “C” Gasket
770 Rigid Coupling
472 Stainless Steel Rigid Coupling