Open Flex
(more info)
Straub Pipe Joint - Open Flex


Non-Axial Restraint Pipe Couplings
The STRAUB-OPEN-FLEX is a split coupling version of STRAUB-FLEX, offering all the STRAUB-FLEX benefits, plus being able to make repairs to in service pipe lines. With the STRAUB-OPEN-FLEX coupling, leaks due to faulty weld joints, pitting holes and short cracks can be temporaryily or permanently repaired with minimal down time. The split gasket design can be wrapped around the pipe and installed without pipe disassembly. Assembly tools are available to ease the installation of the STRAUB-OPEN-FLEX coupling. When used to join pipe ends the STRAUB-OPEN-FLEX coupling provides the same flexibility features as the STRAUB-FLEX design. STRAUB-OPEN-FLEX couplings require the pipes to be axially restrained.

Specification Chart - Straub Open Flex

Material Specification

STRAUB-FLEX type couplings do not have a grip ring and are therefore suitable for applications requiring axial movement due to thermal growth or other factors. STRAUB-FLEX couplings are a suitable replacement for expansion joints. STRAUB-OPEN-FLEX couplings are a split case version of the standard STRAUB-FLEX coupling.

Pressure Responsive Seal
Seal is reinforced by increasing line pressure, ensuring long life performance.
Seals on rough pipe surfaces
No lubrication of gasket is required
Pressure or vacuum service
Absorbs noise and vibration
Low torque/compression ensures long service life

Compact Design
Saves Space
Allows pipes to be closely grouped
Allows low profile installation
Corrosion resistant construction

Ease of Handling and Assembly
Light weight
Simple and quick to install
Stab fit, no need to disassemble
Low torque required
No pipe end preparation
Never needs retightening
No welding