EXPANSION METAL JOINTS
VACFLEX designs and manufacture various expansion joints, and customizes a series of shock absorbers, which can be used in any system that vibrates due to pump operation. If you need other types of expansion joints. We will provide the best solution according to your requirements.

Expansion joints can be equipped with all kinds of connectors, such as welding ends or welded or loose (rotatable) flanges.Expansion joints are used for compensating thermal expansion and misalignments in piping systems, as well as for the absorption of tube movements. The metal bellows forms the heart of each expansion joint, as it guarantees flexibility, tightness and pressure resistance. The main loads placed on expansion joints in plant engineering and construction generally involve the start-up and shutting down of equipment. For this reason, the required service life is usually only 1,000 load cycles. Significantly higher load cycles endured are demanded of expansion joints, which are used to compensate for thermal expansions in the exhaust equipment of large engines. In addition to start/stop processes, these applications generally also result in vibration loads, which must be tolerated on a permanent basis.

Axial expansion joints can be used for smaller nominal diameters and/or low pressures. A typical construction - one bellows with two rotating flanges attached by angular rings. Bellows with weld ends are also often used as expansion joints. In the case of larger nominal diameters or higher operating pressures, expansion joints designs capable of absorbing reaction forces are preferred. These include expansion joints relieved from pressure or articulation. Comprehensive information on this topic,

Standard solutions
The standard full length of shock absorber is 130 mm, and any rubber expansion joint can be easily replaced. The range of shock absorber can solve any problems related to mechanical vibration, and has higher pressure and temperature bearing capacity than rubber bellows. Unlike rubber expansion joints, stainless steel bellows will not be damaged by the atmosphere when installed outdoors.

Technical Specifications:
Maximum Working Pressure: 150 or 300 psi
Maximum Working Temperature: 850°F
Sizes: DN 50 - DN 300
End Fittings: Various standard flanges or according to the user's requisition specification.
Material: stainless steel 304 / 316L

Specifications

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