Installation instructions for axial expansion bellows of Songjiang group

The official website of Shanghai Songjiang shock absorber Group Co., Ltd. introduces you: Installation instructions for axial expansion bellows of Songjiang group

Key factors for installation

The following is the Key factors for installation to obtain good performance and prolong the flange axial expansion bellows .

Fixed points:

An axial expansion bellows  acts as a piston by the forces arising from the internal pressure. To prevent the pipes from damage they are to be properly anchored to take care of these reaction forces (Fr).

The Reaction force of an axial expansion bellows  is calculated by the following formula:

Fr = Q x P x 0.01

Fr = reaction force in kN.

Q = effective cross-sectional area in cm2.

P = actual pressure in bar or KP/cm2

Installation:

The turnable metal flanges make installation easier and eliminate twists.

The low inherent rigidity of Songjiang axial expansion bellows  makes for easier accommodation of installation dimensions.

Check the permissible movements, temperature, pressure, and proper rubber quality before installation!

100% virgin material axial expansion bellows  installation suggestion

100% virgin material axial expansion bellows   installation suggestionThe axial expansion bellows   shall be easily accessible and open to regular supervision. Lt is recommended to let the axial expansion bellows   work in compression rather than stretching. Torsion is not permitted.Maintenance instructions: observe whether the rubber joint is overstretched and keep the flange axial expansion bellows   at normal length every month.Pressure-restrained expansion joint on the pump (with tie bar).

Counter flanges:

The safe operating and life expectancy of the axial expansion bellows  needs to make a proper installation of the counter flanges(Fig. 2 to 5). The sealing face of the counter flange must be machined smooth and cover most of the rubber sealing face(or at least 60%)to ensure good sealing(Fig.2).

100% virgin material axial expansion bellows  installation suggestion

Precaution:

Do not paint or lubricate rubber parts of axial expansion bellows !

When welding work is to take place the bellow has to be protected from welding heat and sparks!

Attention: Please strictly use the rubber fittings of the union according to the above requirements, if not used, cause any consequence, be not responsible for.

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