Product

FLANGE EXPANSION JOINT

Working Pressure:

0.6Mpa~1.6MPa

Nominal Size:

DN50-DN3600

Working temperature:

-20℃~+115℃

Working Medium:

Weak acid, weak alkali, weak corrosion, oil, hot water, cold water, etc.

Available Material:

Ductile iron, Carbon steel, Stainless Steel

Product Surface:

Epoxy spraying coating

 

 

Flange Expansion Joint  

 

Body Material:

Ductile Iron,Carbon Steel

Sealing Material:

NBR,EPDM,Natural Rubber

Gland Material:

Ductile Iron,Carbon Steel

Bolts&Nuts Material

Carbon Steel

 

Product Introduction:

The expansion joint is composed of the body, the sealing ring, the gland and the expansion short tube.
On the basis of the original performance of the loose sleeve expansion joint, a limit device is added, and a double nut is used to lock at the expansion amount.
The double-flange limit expansion joint is suitable for connecting with flanges on both sides.

When installing, adjust the connection length at both ends of the product,tighten the gland bolts evenly in diagonal order, and then adjust the limit nuts, so that the pipe can be freely expanded and locked. The amount of expansion and contraction ensures the operation of the pipeline.

Product Features:

1.It is suitable for connecting the medium for conveying water, oil, gas and granular powder.
2. Large expansion capacity,simple and convenient installation, long service life (up to 10-30 years), and convenient maintenance.
3. The expander can compensate the axial expansion and contraction displacement of the pipeline due to the influence of thermal stress and mechanical vibration.
4. During the installation, it can compensate the butt joint problem of the pipeline due to the error in the actual construction process, thereby greatly reducing the construction difficulty and speeding up the construction progress.
5. Good expansion and contraction performance, long service life, easy to use, can greatly alleviate the adverse effects of the axial thrust of the pipeline.
6. It can effectively eliminate the adverse effects of ground subsidence or crustal changes on pipelines.

Installation Notes:

1. During installation, all moving parts should be kept able to realize effective activities.
2. A guide bracket should be installed during installation,because the vibration formed by the pipeline under the action of thermal stress and mechanical vibration is irregular, it is necessary to install the corresponding guide bracket so that the vibration of the pipeline is consistent with that of the expansion joint. The displacement compensation is consistent, so as to protect the service life of the pipeline.
3. During the installation process, the bolts should be gradually tightened under symmetrical pressure to prevent local leakage.
4. Regular maintenance should be carried out during use to reduce the probability of hidden dangers.

 

DN

Outer Diameter


D

Surface Dimension  n*d
D1 D2 D L L1 0.6-1.6MPa 2.5MPa
65 76 76 155 645 180 2-M12 2-M12
80 89 89 165
100 108 108 195 2-M16
114 114 195
125 133 133 225
140 140 225
150 159 159 255 2-M16 3-M16
168 168 255
200 219 219 310
250 273 273 375 3-M20 4-M20
300 325 325 440 655 220 5-M20
350 377 377 490 4-M20
400 426 426 540
450 480 480 590 5-M20 6-M20
500 530 530 645
600 630 630 750
700 720 720 850 6-M20 7-M20
800 820 820 965 1075 290 6-M24 8-M24
900 920 920 1065 7-M24 9-M24
1000 1020 1020 1165
1200 1220 1220 1365 8-M24 10-M24
1400 1420 1428 1590 9-M27 12-M27
1500 1520 1528 1690
1600 1620 1628 1795 10-M27 14-M27
1800 1820 1828 2000 11-M27 15-M30
2000 2020 2030 2200 12-M27 16-M30
2200 2220 2230 2420 13-M27
2400 2420 2430 2635 14-M30
2600 2620 2630 2835 15-M30
2800 2820 2830 3040 16-M33
3000 3020 3030 3240 17-M33
3200 3220 3230 3440 1130 400 18-M33
3400 3420 3430 3640 19-M33
3600 3620 3630 3860 20-M33
3800 3820 3830 4080 20-M36
4000 4020 4030 4300 21-M36

TYPICAL APPLICATIONS

Water treatment, HVAC, Urban construction, Petroleum, Chemical Indsutry, Textile & Papermaking

 

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