Gruvlok Figure 770 Rigid Coupling with Grade T Nitrile Seal
Gruvlok® Figure 770 Rigid Coupling with Grade T Nitrile Seal
The Gruvlok® Figure 770 Rigid Coupling with Grade T Nitrile Seal is a premium mechanical grooved coupling engineered for high-pressure petroleum and industrial fluid piping systems requiring a rigid, leak-resistant pipe connection. Designed to firmly grip the entire circumference of the pipe groove, the Figure 770 creates a secure mechanical joint that maintains precise pipe alignment while eliminating the need for welding, threading, or flanged connections. Capable of handling working pressures up to 1,000 PSI (68.9 bar), depending on pipe size and wall thickness, this coupling is ideal for oil and gas facilities, hydraulic systems, industrial processing plants, compressor stations, manufacturing facilities, and heavy-duty mechanical piping applications.
Its rugged construction and dependable sealing performance make the Figure 770 an economical and reliable solution for demanding high-pressure installations.
Advanced Rigid Joint Design
Full 360° Groove Engagement
The Gruvlok® Figure 770 features a precision-engineered housing that provides full 360-degree gripping of the pipe groove, creating a rigid connection that minimizes axial movement and maintains proper pipe alignment. The innovative tongue-and-groove housing design simplifies installation while ensuring accurate housing alignment during assembly, resulting in a secure, long-lasting mechanical joint.
This rigid design supports piping systems where movement is undesirable, making it an excellent choice for pump rooms, process piping, hydraulic systems, and other high-pressure industrial applications.
Grade T Nitrile Seal
Designed for Petroleum Service
The Grade "T" Nitrile (Buna-N) gasket, identified by its orange color code, is specifically engineered for petroleum-based applications. With a service temperature range of -20°F to 180°F (-29°C to 82°C), it is recommended for petroleum products, mineral oils, vegetable oils, hydraulic fluids, fuels, and compressed air containing oil vapors.
The Grade T Nitrile Seal is not recommended for drinking water, hot water, or hot air service. Selecting the proper gasket material ensures maximum sealing performance, media compatibility, and extended service life.
Why Choose the Gruvlok® Figure 770 Rigid Coupling?
Reliable High-Pressure Mechanical Pipe Joining
The Gruvlok® Figure 770 Rigid Coupling with Grade T Nitrile Seal combines high-pressure performance, rigid mechanical joint technology, and superior petroleum resistance into one dependable piping solution. Its ability to withstand pressures up to 1,000 PSI, along with its easy installation and durable construction, makes it a preferred choice for engineers, contractors, and maintenance professionals seeking long-lasting mechanical pipe connections for demanding industrial and petroleum service applications.