Flexible support ring maintaining the link between pipe and structure providing vibration isolation and protection against shock.
Pipe isolators
Natural frequencies under nominal load:
– axial: 10 to 30 Hz
– radial: 15 to 40 Hz
Maximum displacement in axial shock: ± 5 mm
Temperature range: 0 to 175° C
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Conical (fig. 1) or spherical (fig. 2) units are used to absorb very high axial loads of up to150 tons.
Angular movement around an axis (Oz in the case of the conical bearing) or a centre of rotation (O in the case of the spherical bearing) are in the order of ± 10°.
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– Vertical own frequencies under nominal loads of 5 to 7 Hz.
– Own lateral frequencies under nominal loads of 3 to 6 Hz.
– Stop after 10 mm of displacement. Maximum force on the top of 30 g
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The progress in motor vehicle design and increased demand for comfort both in terms of vibration and sound-proofing has resulted inincreasingly demanding specifications for suspension systems.
PAULSTRA hydraulic mountings use an elastomer support device combined with an hydraulic system. The hydraulic system acts differentially and specifically in relation to the frequency range and the type of vibrational excitation incurred.
These mountings, due to a total integration of all components, are still compatible with standard sizes and are as easy to fit as conventional mountings.
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These assemblies can withstand high compression loads (along Oz): up to1,000 tons/sq.meter.
They can absorb shear deformation (along Ox and Oy) of 50 to 100% of their height.
Cylindrical or annular type assemblies can also withstand torsional displacement around axis Oz.
In rotation around axes Oy and Ox, these mountings enable angular or low amplitude rotation errors (approximately 1°).