Single Flange Dismantling Joint
Dresser Coupling
flange limited expansion joint
Single flange limited expansion joint
double flange dismantling joint

VSSJA-1(BF)-type single flange limit expansion joint

  • [Name]: Single Flange Dresser Coupling
  • [PN]: 0.6Mpa~4.0Mpa
  • [Medium]: Air,compressed air,water,sea water,oil,alkali,ect.  
  • [Material]: QT400-15,Q235A,ZG230-45,20
  • [Certification]: ISO9001-2008
  • [Specification]: DN 65mm to DN 3600mm with virtually any flange drilling or pressure rating supplied

Overview

Single Flange Dresser Coupling is formed by adding a limit device to the basic sleeve Type Expansion Joint and locked at maximum expansion by double nut.The pipeline can thus freely expand in certain limit. When maximum valve is reached,it will be limited and effectively assure the pipeline working safety.Limited expansion joint is especially suitable for pipeline connection where vibration occur,where taper connection requested and bend pipeline connection.

Dresser Couplings are particularly suitable for simplifying the installation and removal of isolation valves,control valves,check valves,non-return valves, flow metering valves, pump sets,pressure reducing valves,flanged pipe fittings.The simplicity and versatility of the fittings make them suitable for many applications including pumping stations,water treatment works, sewage treatment works, plant rooms, meter chambers, power generation equipment, gas distribution stations.

During the installation, adjust the installation length to the pipe and flange on the both sides, screw the bolts firmly one by one, weld the short pipes with the pipe, and then adjust the limited nut. This method makes it possible for the pipe to expand and contrast freely within the allowable range of the expansion joint. It also can secure the safe operation.

Features

Our Dresser Coupling designed and manufactured to ISO 9001: 2008 and tested to the most exacting requirements of Water Regulatory Advisory Scheme for use with potable water.

1.Self -anchoring couplings and flange adpators

2.For ductile iron or steel pipes

3.Easy to use and to install

4.All weather installation

5.Can even be installed under water

6.Fully end load bearing

7.Easier fitting on oval pipes

8.Ideal for pumped sewerage pipelines

Specification

No. Name Quantity Material
1 Body 1 QT400-15,Q235A,ZG230-450,20
2 Gasket 1 NBR
3 Cover 1 QT400-15,Q235A,ZG230-450,20
4 Limited short pipe 1 Q234A,20,16Mn
5 Nut 4n Q235A,20,1Cr8Ni9Ti
6 Long Stud n Q235A,35,1Cr8Ni9Ti
7 bolt n Q235A,35,1Cr8Ni9Ti

Size form

Nominal iameter

DN

External diameter of pipe DW

Length

Compensation Flange connecting dimension
0.6Mpa 1.0Mpa
DW D0 L L1 D D1 n-do D D1 n-do
65 76 76 340 105 50 160 130

 

4-Ф14

185 145 4-Ф18
80 89 89 190 150 4-Ф18 200 160 8-Ф18
100 108 108 210 170 220 180
114 114
125 133 133 240 200 8-Ф18 250 210
140 140
150 159 159 265 225 285 240 8-Ф22
168 168
200 219 219 320 280 340 295
250 273 273 375 335 12-Ф18 395 350 12-Ф22
300 325 325 350 130 65 440 395 12-Ф22 445 400
350 377 377 490 445 505 460 16-Ф22
400 426 426 540 495 16-Ф22 565 515 16-Ф26
450 480 480 595 550 615 565 20-Ф26
500 530 530 654 600 20-Ф22 670 620
600 630 630 755 705 20-Ф26 780 725 20-Ф30
700 720 720 860 810 24-Ф26 895 840 24-Ф30
800 820 820 590 220 130 975 920 24-Ф30 1015 950 24-Ф33
900 920 920 1075 1020 1115 1050 28-Ф33
1000 1020 1020 1175 1120 28-Ф30 1230 1160 28-Ф36
1200 1220 1220 1405 1340 32-Ф33 1455 1380 32-Ф40
1400 1420 1420 1630 1560 36-Ф36 1675 1590 36-Ф42
1500 1520 1528 1730 1660      
1600 1620 2628 1830 1760 40-Ф36 1915 1820 40-Ф48
1800 1820 2828 2045 1970 44-Ф40 2115 2020 44-Ф48
2000 2020 2030 2265 2180 48-Ф42 2325 2230 48-Ф48
2200 2220 2230 2475 2390 52-Ф42 2550 2440 52-Ф56
2400 2420 2430 2685 2600 56-Ф42 2760 2650 56-Ф56
2600 2620 2630 600 240 140 2905 2810 60-Ф48 2960 2850 60-Ф56
2800 2820 2830 3115 3020 64-Ф48 3180 3070 64-Ф56
3000 3200 3030 3315 3220 68-Ф48 3405 3290 68-Ф60
3200 3220 3230 3525 3430 72-Ф48      
3400 3420 3430 3735 3640 76-Ф48      
3600 3620 3360 3970 3960 80-Ф56      
Dresser Coupling:This product is used to link the flange on the one side and weld with pipe on the other side.Modulate the product's length between flange and the pipe while installing.Screw down bolt,and then adjust the nuts so that the pipe can expand and contract freely within the scope to guarantee fail safe operation of the pipe.

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