external stainless steel supporting rings from 1.4301. PTFE bead on both sides for steel flanges with integrated tie rods. Standard version: white PTFE, electri-cally insulating. Special version: black PTFE, electrically conductive.

Pressure resistanceMax. operating pressure: 10 bar, depending on the temperature (see tables).

Flange versionSteel S235JRG2, primed. Standard version delivered with flange with tie rods and clearance holes (drilled according to DIN PN 10). Other flange versions and materials are possible.

Special accessories

l PTFE guide sleeves

l Potential equalisation

l Flame-resistant protective covers

l Dust and splash protection covers

l Earth cover/sun protection hoods

ConformityFDA and EG 1935/2004

Type 80 is a 3- or 5-corrugated PTFE expansion joint that is hot-formed under pressure from extruded PTFE tubing. The fibers are executed without interruption. It is characterised by its high level of media resistance and movement absorption.Type 80 is primarily used in chemical plants to absorb movement, insulate sound and compensate offsets. Its high level of elasticity and low stiffness rates means that it can also be used in pipes made from fragile materials such as glass, graphite or enamel.

Bellow designMulti-corrugated, pure PTFE bellow with

TYPE 80 WILLBRANDT PTFE EXPANSION JOINT

BG08/2018 – Subject to alterations and misprints www.belman.com1 / 5

STANDARD VERSION 3-CORRU-GATED - WITH TIE RODS

STANDARD VERSION 5-CORRU-GATED - WITH TIE RODS

BG08/2018 – Subject to alterations and misprints

is necessary to use elastic seals made of TFM with reinforcement (please refer to the required surface pressure).PTFE expansion joints may not be subject to torsion or vibration.The bellows should not be painted.

Please refer to the installation instructions. We will be happy to send you further information on the individual types and designs.

Important information No additional seals are required for normal, flat flange connections up to DN 300.From DN 350 and in the case of glass components or other connecting parts it

140 °C

15 - 4050

65 - 80100 - 150200 - 250300 - 350400 - 450500 - 600

700800 - 900

1000 - 1200

DNTemperature / Pressure

20 °C 40 °C 60 °C 80 °C 100 °C 120 °C 160 °C 180 °C 200 °C 220 °C

PERMISSIBLE PRESSURE LOADING AT TEMPERATURE (3-CORRUGATED)

10,00 bar10,00 bar10,00 bar8,50 bar7,00 bar6,00 bar4,50 bar3,00 bar1,80 bar1,50 bar1,00 bar

10,00 bar8,70 bar8,70 bar7,50 bar6,10 bar4,90 bar3,60 bar2,50 bar1,70 bar1,40 bar0,90 bar

10,00 bar7,70 bar7,50 bar6,50 bar5,30 bar4,20 bar3,00 bar2,00 bar1,60 bar1,30 bar0,80 bar

10,00 bar6,70 bar6,50 bar5,60 bar4,50 bar3,40 bar2,50 bar1,60 bar1,50 bar1,20 bar0,70 bar

10,00 bar5,80 bar5,60 bar4,80 bar3,80 bar2,80 bar2,20 bar2,30 bar1,30 bar1,10 bar0,65 bar

9,50 bar5,20 bar4,80 bar4,30 bar3,30 bar2,50 bar1,80 bar1,10 bar1,20 bar1,00 bar0,60 bar

8,00 bar4,30 bar4,10 bar3,50 bar2,70 bar2,10 bar1,50 bar0,80 bar1,10 bar0,90 bar0,55 bar

7,50 bar4,00 bar3,50 bar2,80 bar2,30 bar1,70 bar1,30 bar0,60 bar0,90 bar0,80 bar0,50 bar

5,50 bar3,50 bar2,80 bar2,40 bar1,70 bar1,40 bar1,00 bar0,50 bar0,80 bar0,60 bar0,40 bar

5,00 bar3,20 bar2,50 bar2,00 bar1,40 bar1,20 bar0,80 bar0,40 bar0,70 bar0,50 bar0,30 bar

4,50 bar3,00 bar2,20 bar1,60 bar1,20 bar0,90 bar0,80 bar0,40 bar0,60 bar0,40 bar0,20 bar

2 / 5 www.belman.com

BG08/2018 – Subject to alterations and misprints

140 °C

15 - 4025 - 5065 - 80

100 - 150200 - 250300 - 350400 - 450500 - 600

700800 - 900

1000 - 1200

DNTemperature / Pressure

20 °C 40 °C 60 °C 80 °C 100 °C 120 °C 160 °C 180 °C 200 °C 220 °C

PERMISSIBLE VACUUM LOADING AT TEMPERATURE (3-CORRUGATED)

-1,00 bar-1,00 bar-1,00 bar-1,00 bar-1,00 bar-0,80 bar-0,75 bar-0,69 bar

---

-1,00 bar-1,00 bar-1,00 bar-1,00 bar-0,91 bar-0,74 bar-0,69 bar-0,64 bar

---

-1,00 bar-1,00 bar-1,00 bar-0,96 bar-0,85 bar-0,66 bar-0,61 bar-0,56 bar

---

-1,00 bar-1,00 bar-1,00 bar-0,90 bar-0,79 bar-0,59 bar-0,55 bar-0,49 bar

---

-1,00 bar-0,96 bar-0,96 bar-0,81 bar-0,70 bar-0,49 bar-0,45 bar-0,39 bar

---

-1,00 bar-0,91 bar-0,91 bar-0,74 bar-0,62 bar-0,40 bar-0,32 bar-0,29 bar

---

-1,00 bar-0,85 bar-0,85 bar-0,66 bar-0,53 bar-0,28 bar-0,22 bar-0,18 bar

---

-1,00 bar-0,79 bar-0,79 bar-0,58 bar-0,43 bar-0,18 bar-0,13 bar

----

-1,00 bar-0,70 bar-0,70 bar-0,46 bar-0,30 bar

------

-1,00 bar-0,63 bar-0,63 bar-0,35 bar-0,20 bar

------

-0,96 bar----------

140 °C

20 - 4050

65 - 80100 - 150200 - 250300 - 350400 - 450500 - 600

DNTemperature / Pressure

20 °C 40 °C 60 °C 80 °C 100 °C 120 °C 160 °C 180 °C 200 °C 220 °C

PERMISSIBLE PRESSURE LOADING AT TEMPERATURE (5-CORRUGATED)

7,00 bar7,00 bar4,25 bar4,25 bar3,50 bar3,00 bar2,25 bar1,50 bar

6,00 bar6,20 bar3,75 bar3,75 bar3,05 bar2,45 bar1,80 bar1,25 bar

5,50 bar5,60 bar3,25 bar3,25 bar2,65 bar2,10 bar1,50 bar1,00 bar

5,00 bar5,10 bar2,80 bar2,80 bar2,25 bar1,70 bar1,25 bar0,80 bar

4,50 bar4,80 bar2,40 bar2,40 bar1,90 bar1,40 bar1,10 bar1,15 bar

4,00 bar4,30 bar2,15 bar2,15 bar1,65 bar1,25 bar0,90 bar0,55 bar

3,80 bar4,00 bar1,75 bar1,75 bar1,35 bar1,05 bar0,75 bar0,40 bar

3,10 bar 3,70 bar1,40 bar1,40 bar1,15 bar0,85 bar0,65 bar0,30 bar

2,90 bar3,40 bar1,20 bar1,20 bar0,85 bar0,70 bar0,50 bar0,25 bar

2,60 bar3,00 bar1,00 bar1,00 bar0,70 bar0,60 bar0,40 bar0,20 bar

2,30 bar2,80 bar0,80 bar0,80 bar0,60 bar0,45 bar0,40 bar0,20 bar

for vacuum loading. We will be happy to send you further

information on the individual types and designs.

Important information Type 80 (5-corrugated) is not suitable

Note: Type 80 (5-corrugated) is not suitable for vacuum loading.

3 / 5 www.belman.com

BG08/2018 – Subject to alterations and misprints

*1 WF = effective area *2 Other dimensions (e.g. according to DIN PN 6, 16, ANSI b16,5 150 lbs) are available upon request.*3 The movement absorption values are maximum values and must not occur in combination. *4 The stiffness rate are valid for 20 °C +/- 25 %. At higher temperatures the stiffness rate can fall by up to 50 %.

1520253240506580

100125150200250300350400450500600700800900

10001200

DN

ØDmm

ØPCDmm

WF*1

mm2

70707075807575

100100125150150150150150150150150175190190190190190

95105115140150165185200220250285340395445505565615670780895

1015111512301455

657585

100110125145160180210240295350400460515565620725840950

105011601380

Flange PN 10*2

Ødmm

M12M12M12M16M16

18181818182222222222262626303033333639

nmm

444444888888

121216162020202424282832

smm

888

101012161616181820242424242426303535353535

455868788898

118122148174200256303360402453513564658800905

100511101330

ØCmm

Movement absorption*3

+mm

Weight

kg-

mm-

mm

AX

101010101515222525282828283030303030303535353535

101010101515222525282828283030303030303535353535

18181838445040405060

100150150150200200250300300350380400425460

LA LA+/-mm

+/-mm

66666

15171718182010866554222222

202020252845506090

110150180200200270270290350350410490530570620

1,91,91,92,32,96,07,08,0

10,012,015,020,035,048,057,070,078,086,0

125,0136,0146,0184,0214,0275,0

24002400240033004000420055009000

135001900029500460006700094000

108000140000180000210000310000441500570000712000874000

1256100

bmm

3,03,03,03,03,03,53,03,03,54,04,04,04,04,04,54,03,54,04,03,03,03,03,03,0

BL

mm

Stiffness rates*4

AX

DIMENSIONS TYPE 80 (3-CORRUGATED)

4 / 5 www.belman.com

DN

20253240506580

100125150200250300350400450500600

DN

ØDmm

ØPCDmm

WF*1

mm2

100100105115100100125150175225225225225225225225225250

105115140150165185200220250285340395445505565615670780

7585

100110125145160180210240295350400460515565620725

Flange PN 10*2

Ødmm

M12M12M16M16

1818181818222222222226262630

nmm

44444888888

12121616202020

smm

88

10101418181820212327272727272933

5868788898

118122148174200256303360402453513564658

ØCmm

Movement absorption*3

+mm

Weight

kg-

mm-

mm

AX

151515202035404045454545505050505050

151515202035404045454545505050505050

11112327303535354080

100100120160200200250250

LA LA+/-mm

+/-mm

8888

25303030323232151088776

181825323540456080

120150170170250230240300300

1,91,92,32,96,57,59,0

11,013,017,022,037,050,059,072,080,089,0

130,0

BG08/2018 – Subject to alterations and misprints

2400240033004000420055009000

135001900029500460006700094000

108000140000180000210000310000

bmm

3,03,03,03,03,53,03,03,54,04,04,04,04,04,54,03,54,04,0

BL

mm

Stiffness rates*4

AX

DIMENSIONS TYPE 80 (5-CORRUGATED)

*1 WF = effective area*2 Other dimensions (e.g. according to DIN PN 6, 16, ANSI b16,5 150 lbs) are available upon request.*3 The movement absorption values are maximum values and must not occur in combination. *4 The stiffness rate are valid for 20 °C +/- 25 %. At higher temperatures the stiffness rate can fall by up to 50 %.

piping system! For more information please refer to our installation instruc-tions.

We will be happy to send you further information on the individual types and designs.

Important informationPlease note the appropriate fixed point constructions and plain bearings in your

5 / 5 www.belman.com