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772: Rigid Grooved Coupling
The GRINNELL Figure 772 Rigid Coupling provides a rigid joint by firmly gripping along the full 360° circumference of the pipe grooves. This coupling offers a dependable method of joining pipe and is an economical alternative to welding, threading, or using flanges. The GRINNELL Figure 772 Rigid Coupling is UL Listed for grounding and bonding, and is suitable for bonding systems with a maximum service entrance capacity of 200 amps. Sizes 32 - 200mm (1 1/4" - 8") feature a clamshell design that makes installation easier and faster.
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774: Rigid Grooved Coupling
The GRINNELL Figure 774 Grooved Rigid Coupling provides a rigid joint by firmly gripping along the full circumference of the pipe grooves. Figure 774 Grooved Rigid Couplings are a proven dependable method of joining pipe and are an economical alternative to welding, threading, or using flanges. It is capable of pressures up to 34.5 Bar (500 psi) depending on pipe size and wall thickness when used in fire protection services.
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705: Flexible Grooved Couplings
The GRINNELL Figure 705 Flexible Coupling allows for angular and linear deflection, thermal expansion and contraction, and misalignments of pipe. It is capable of pressures up to 34.5 Bar (500 psi), depending on pipe size and wall thickness. Suitable for use in a variety of applications, the GRINNELL Figure 705 Coupling provides a dependable method of joining pipe.
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707: Heavy Duty Flexible Grooved Couplings
The GRINNELL Figure 707 Heavy Duty Flexible Coupling allows for angular and linear deflection, thermal expansion and contraction, and misalignments of the pipe. Flexible couplings can act as an "expansion joint", allowing linear and angular movement of the pipes when properly installed. This coupling is capable of pressures up to 68.9 Bar (1,000 psi), depending on pipe size and wall thickness. Suitable for use in a variety of applications, the Figure 707 Coupling provides a dependable method of joining pipe.
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716: Flexible Reducing Grooved Couplings
The GRINNELL Figure 716 Flexible Reducing Coupling allows for a direct transition between two different pipe sizes and replaces two couplings and a reducing fitting. It is capable of pressures up to 34.5 Bar (500 psi) depending on pipe size and wall thickness. A flexible reducing coupling is not recommended for low-temperature applications.
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Continuity Clip: Electrical Continuity
Earth bonding of the GRINNELL couplings in painted finish can be made in steel pipework systems with an electrical continuity clip. This clip, manufactured from 301-grade stainless steel, is designed to ensure electrical continuity in situations of high current loading and/or corrosive environments, providing equipotential bonding of the conductive parts.
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