Flange clamps are used for providing the holding power to the 4 bolt flange connection. They are offered in split and captive (one-piece) versions. The captive ones are also offered with either drilled or tapped bolt holes. The captive flange clamp with tapped holes is used while connecting a tube to another tube or a hose.
The split clamps make it easy to assemble the connection in close quarters. They also enable an easy removal of the flange head component, such as a hose assembly, by loosening all four bolts and removing one clamp half.

Markets:
• Environment
• Industrial
• Machine Tools
• Marine
• Materials Handling
• Mobile Industries
• Power Generation
• Press Building

Applications:
• Suitable for general hydraulic and industrial applications.

4 bolt flange connection ISO 6162-1/2 (SAE J518 Code 61/62) and ISO 6164 is a proven leak-free connection, especially suited for larger sizes. As a result, it has achieved worldwide acceptance. The connection’s success is in its simplicity. It is a static face seal using a high durometer O-ring for the seal and clamps and bolts for holding power. The O-ring seal is compressed between the bottom of the groove in the flange head and the flat surface of the port or flange pad, providing a reliable soft seal.

This simple design provides several advantages over threaded port connections, such as NPT, SAE, BSPP, ISO 6149 etc., in larger sizes:
• Ability to connect up to 5 inch O.D. tube (ISO 6162-1 only)
• Much lower tightening torque required from the four bolts compared to equivalent threaded size port.
• Less tightening torque means smaller wrenches and wrench swing clearances – providing ease of assembly in
tight working environment.
• Up to 6000 psi capability through 3“ size (ISO 6162-2 only)
• Use up to 420 bar at the ISO 6164 flange sizes from 3/8" to 4".
• Single seal point between tube/pipe/hose assembly and the port
• Ease of disassembly through use of split clamps