Stainless steel bellows, as a rule, are rated for a temperature of +20 ° C, the nominal pressure, and a load of 1000 load cycles. One load cycle refers to the procedure beginning at zero position, from where the compensator moves to the maximum elongation (positive) position, back through the zero position to the maximum compression (negative) position, and back to the zero position.
Together with the tolerable operating conditions.
• Pressure • Temperature
• Movement • Number of load cycles
The following parameters can also influence the service life of compensators:
Corrosion can be caused by incorrect selection or combination of materials, conveyance of aggressive media and inappropriate cleaning with chemical agents.
High-frequency oscillations and sympathetic vibration must be avoided, because this will result in fatigue failure/fracture. Pressure and temperature shocks must be avoided. It is important not to exceed the permitted maximum values.
Incorrect installation can be prevented by compliance with the installation and assembly instructions. In the case of unrestrained compensators, the absence of fixed points can cause the pipeline to shift. This usually destroys the compensator.
Connection parts
Axces compensators are supplied ready for installation. They are connected to pipes and fittings, by flanges, welding ends or threaded connections.
The connections are standardized to fit commercially available flanges, threads, and pipes.
Flanges
Stainless steel compensators can be supplied with rotating flanges or fixed flanges. Standard flanges are drilled in accordance to DIN2573 PN6.
Standard screws can be used because the flanges are drilled for standard bolts. Other flange connections under DIN, ANSI, JIS are also available.
