DIN standard rubber expansion joint bellows is also called rubber bellows,rubber expansion joint,flexible rubber joint,and gb rubber joint effect is the same,just the flange with German standards,a change in the length of a sphere.
DIN standard rubber expansion joint bellows according to the pipe is the main purpose of heat bilges cold shrink and have the effect of compensating pipe,and can reduce the vibration and noise,from the fundamental solution of various pipe interface displacement,axial expansion and heart problems.
DIN standard rubber expansion joint bellows flange to flange,material can be carbon steel,flange surface treatment is galvanized,for steel forging and become,once again said the forging flange,material good,generally used in medium is water,hot water pipes.
DIN standard rubber expansion joint bellows of the medium can be:water,hot water,water,air,weak acid,weak base,oil etc.
Rubber expansion joint bellows of JIS standard material for natural and synthetic rubber,commonly can also be:nitrile butadiene rubber,silicone rubber, epdm,natural and synthetic rubber with medium of water pipeline,nitrile butadiene rubber use for oil pipeline with the media,silicone rubber with weak alkali pipeline,EPDM in use and hot water pipes.
Rubber bellows joint installation convenience simple,JIS standard for flange to the main body not adhesion,flange can rotate 360 degrees,not because the other pipe flange is welded or fixed Installation problem,caused by single when installation will need to diagonal to tighten the bolt.
DIN standard rubber expansion joint bellows of the matters needing attention:due to the rubber joint main body for the rubber,so avoid contact with sharp metal,in order to avoid punctured sphere;Also can't use in strong sunlight,medium unstable environment,in order to avoid influencing service life;When meeting line pressure is too high should also be on rubber joint spacing device.
DIN standard rubber expansion joint bellows according to the pipe is the main purpose of heat bilges cold shrink and have the effect of compensating pipe,and can reduce the vibration and noise,from the fundamental solution of various pipe interface displacement,axial expansion and heart problems.
DIN standard rubber expansion joint bellows flange to flange,material can be carbon steel,flange surface treatment is galvanized,for steel forging and become,once again said the forging flange,material good,generally used in medium is water,hot water pipes.
DIN standard rubber expansion joint bellows of the medium can be:water,hot water,water,air,weak acid,weak base,oil etc.
Rubber expansion joint bellows of JIS standard material for natural and synthetic rubber,commonly can also be:nitrile butadiene rubber,silicone rubber, epdm,natural and synthetic rubber with medium of water pipeline,nitrile butadiene rubber use for oil pipeline with the media,silicone rubber with weak alkali pipeline,EPDM in use and hot water pipes.
Rubber bellows joint installation convenience simple,JIS standard for flange to the main body not adhesion,flange can rotate 360 degrees,not because the other pipe flange is welded or fixed Installation problem,caused by single when installation will need to diagonal to tighten the bolt.
DIN standard rubber expansion joint bellows of the matters needing attention:due to the rubber joint main body for the rubber,so avoid contact with sharp metal,in order to avoid punctured sphere;Also can't use in strong sunlight,medium unstable environment,in order to avoid influencing service life;When meeting line pressure is too high should also be on rubber joint spacing device.
|
NO. |
Name |
Material |
|
1 |
Inner and outer layer |
NR,EPDM,NBR |
|
2 |
|
Polyester cords |
|
3 |
Vacuum ring |
Stainless steel |
|
4 |
Flange |
Carbon steel,stainless steel |
|
Model |
I |
II |
III |
|
Working pressure MPa(Kgf/cm2) |
1(10) |
1.6(16) |
2.5(25) |
|
burst pressure MPa(Kgf/cm2) |
3.0(30) |
4.8(48) |
5.5(55) |
|
vacuum KPa(mmHg) |
53.3(400) |
86.7(650) |
100(750) |
|
Application TEMP. ℃ |
-15~115 to -30~250 |
||
|
Application medium: water,seawater,oil,acid,alkali,etc. |
|||
Our Advantages:
1. Qualified Joint Supplier in Nuclear Power Plant
2. China National Standards Drafting Unit of Rubber Joint
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