※ Nominal pressure：PN0.6~1.0（MPa）
※ Nominal diameter：DN40~1600 （mm）
※ Wave count: 1, 3, 4, 5, 6
※ Flange size：HG/T 20592（Or as required by the contract）
※ Pressure test：GB/T13927
First、Product overview
Fluorine-lined compensators can be used to eliminate thermal expansion or displacement of pipes, containers or equipment due to climate change or due to other causes; As a kind of buffer vibrator. It can be installed at the inlet and outlet of the pump or other high frequency mechanical analysis to reduce or eliminate its vibration, improve the service life of the pipeline and seal performance. It solves the problem that the metal compensator can't solve, reduces the cost of the enterprise and improves the production efficiency.
Second、Product characteristics
1、According to the manufacturing standard GB/T 12777-1999 "metal bellows expansion joint general technical conditions"。
2、All flanges are flat welded flanges, flange standard GB/T9119-2000, can also be selected according to the requirements of the demander, flange sealing surface size shall be manufactured according to the size of sealing surface specified in the selection standard.
3、Bellows shell material selection: carbon steel, 304, 316, 316L。
4、Lining material selection：PTFE、 PVDF、 PFA、 ECTFE、 FEP 。
5、The use temperature of steel lined PTFE compensator is -50℃ ~ 180℃; The working pressure of the steel lined tetrafluoron compensator is -0.09Mpa ~ 2.5Mpa(depending on the operating temperature and pipe diameter).
6、Resist the penetration of small molecular gases, including oxygen, carbon dioxide, Cl2,。
7、High purity, very low precipitation rate, in line with the purity requirements of the photovoltaic industry。
8、The surface is extremely smooth and the coefficient of friction is very small. Strong mechanical properties, strong, good wear resistance.
Third、Compensator installation precautions

1、The installation of compensator shall be carried out in accordance with the requirements of pipe system construction drawings and compensator installation instructions。

2、llation of the compensator pipeline must be properly guided and fixed in order to make the compensator play a role, so the setting of the guide and fixed support must be strictly in accordance with the relevant technical data of the design department

3、Compensator for the bellows is made of thin wall stainless steel plate molding, so during transportation, lifting and welding should pay attention not to knock, scratch, arc, welding splash and other reasons to damage the bellows.

4、Remove foreign bodies in the bellows and pipes before installation to ensure the normal movement of the bellows.
5、The compensator with flow direction requirements should be installed according to the requirements of the medium flow direction arrow.
6、In order to make the bellows in good working condition, the installation can not use the deformation of the compensator, including axial, transverse, torsion, etc., to adjust the installation error of the piping position.
7、After the compensator is installed, remove all yellow painted transport fixation screws before system operation.

First、Design standard

Design standard	Design and manufacture specification	GB/T15700. GB/T12777	Performance specification	Pressure level	PN0.6~PN1.6MPa
	Structural length	GB/T12777		Strength test	1.5times
	Connection size	HG/T20592.GB/T9113		Seal test	1.1times
	Inspection and test	GB/T12777		Airtight test	0.6Mpa

Second、Compensator main connection size


Third、Order specification
Fluorine lined compensator is mainly divided into two kinds, one is suitable for the working environment of positive pressure pipeline system, the other is used for the working condition of negative pressure pipeline system, need to increase the negative pressure ring in the compensator to strengthen, need special note when ordering, and write into the purchase contract.