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 PTFE Bellows

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PTFE Products
PTFE Lined Products

PTFE Bellows For Lined Pipes

Bellows are specially designed from Virgin P.T.F.E. and is contour moulded. This manufacturing method guarantees an excellent structure of material; symptoms of aging are practically excluded. Very long term durability and low maintenance costs are assured.

These Bellows are manufactured in different types from NB 25 mm to NB 1200 mm. The allowable operating pressures are depending on design (see graph and data sheet of each bellow).The bellows can be used upto 210°C (please see Pressure/Temperature in the table) maximum pressure allowable is restricted.

Bellows serve for compensation of:

bulletVibration
bulletThermal Strain and expansion
bulletAxial and Radial motion

These Bellows are meant for resisting highly corrosive chemicals for chemical plants and pipings for aggressive medias.

These Bellows are installed in PTFE Lined Carbon Steel Piping and equipment without additional gaskets. For use with piping and equipment made of glass, enamel and ceramics we recommend PTFE Gaskets, offered as accessory.

The sealing surfaces are covered with end plates and individually boxed for protection against mechanical damage. Limit bolts are preset to prevent over extension during operation.

 DN  Max.
Working Pressure bar/ 23°C		  L
MM 		Æd4 mm  b1
mm 		 DX
+/- mm		  M
mm 		 Approx. Wt. Kg.
DIN ANSI
25 12 50 60 51 13 10 5 2.5
32 12 50 70 64 13 10 5 3.2
40 12 55 88 73 13 10 5 3.5
50 12 70 102 92 15 15 8 4.8
65 10 80 122 105 15 20 8 5.5
80 10 100 138 127 16 25 8 6.9
100 10 100 158 157 16 25 12 7.9
125 9 100 188 186 18 25 12 11
150 9 100 212 216 18 25 12 15
200 6 150 268 270 19 30 14 19
250 6 150 320 324 23 30 14 25
300 6 150 370 381 23 30 14 27
350 4 160 430 413 23 35 18 35
400 4 160 482 470 25 35 18 42
450 3 160 532 533 25 35 18 49
500 2 160 585 584 27 35 20 57
600 2 170 685 692 30 35 20 78
700 1 170 800 800 35 35 20 108
800 1 170 905 914 35 35 20 121
900 1 170 1005 1022 35 35 20 133
1000 1 170 1110 1124 40 35 20 146
1200 1 170 1330 1360 40 35 20 175
                 
1. All dimensions are in millimetres.
2. Flange connections according to ANSI B 16.5/DIN.
3. The figures for compensation DX shown above do not apply to lateral or angular installation at the same time.

 

 
 

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