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- The Fig. 7401 Rigidlok® Coupling is an ideal connector for service and applications that require a rigid connection. The Fig. 7401 Rigidlok® coupling utilizes a technologically advanced housing design that conforms to and grips the pipe. Coupling installation is fast and easy, remove only one nut and swing the housing over the gasket and into the grooves. The exclusive Guidelok® feature automatically separates the grooved pipe ends and guides the coupling into position as the bolts are tightened. Precisely sized and oriented tines in the housing key section firmly grip the pipe. The combination of these designed in features produce a secure, rigid pipe joint connection. The Fig. 7401 Rigidlok® Coupling is designed for use with roll grooved or cut grooved standard weight and roll grooved lightweight pipe, as well as with grooved-end fittings and valves. The Rigidlok® Coupling provides a rigid pipe connection allowing pipe hanging practices per ASME B31 pipe codes. The Fig. 7401 Rigidlok® Coupling allows for a maximum working pressure of 750 psi (51.7 bar) when used on standard wall roll or cut grooved pipe.
Gruvlok® Rigidlok® Pipe Coupling, Series: FIG 7401, Coupling, 4 in Nominal, Grooved, 2-1/8 in Thickness, 750 psi, Ductile Iron, Rust Inhibiting Paint, Orange, 4-1/2 in OD, Domestic
- (2) 1/2 x 3 in coupling bolts
- 80 to 100 ft-lb specified torque
- 11928 lb max end load
- 0 to 3/32 range of pipe end separation
- SAE J429, grade 5, zinc electroplated ISO 898-1, class 8.8, zinc electroplated followed by a yellow chromate dip bolts
- ASTM A563, grade A, zinc electroplated, ISO 898-2, class 8.8, zinc electroplated followed by a yellow chromate dip heavy hex nuts
- Grade "T" nitrile gasket: Recommended for petroleum applications. air with oil vapors and vegetable and mineral oils and not for use in hot water or hot air
- Domestic / ImportDomesticEnd StyleGroovedFinishRust Inhibiting PaintFitting / Connector TypeCouplingMaterialDuctile IronNominal Size4 inColorOrangeDimensions4-1/2 in ODManufacturerAnvil InternationalManufacturer #0390013696Pressure Rating750 psiSeriesFIG 7401Thickness2-1/8 in