7401-2 Gruvlok RigidLOK Coupling

Gruvlok® 2-piece large diameter standard groove rigid coupling Uses standard grooves (conforming to AWWA C-606) No special grooves or grooving tools needed Pressures to 350 P.S.I. on cut or roll grooved standard wall pipe with a wall thickness of 0.375" No special fittings needed No special valves needed Up to 23% less weight than competitive models The Figure 7401-2 Rigidlok Coupling with a Pre-Lubricated Grade “E” EPDM, Type “A” gasket (coupling is easily identified by purple nuts) is intended for use in fire protection systems installed in accordance with NFPA Standard 13 “Sprinkler Systems.”