PTFE Expansion Joint Type R (Standard)

PTFE multi-laminated tubes, that ensure an absolute minimum prososity and a homogeneous wall-thickness, are transformed under temperature and pressure to special high-quality bellows, with a high vacuum- and pressure resistance, even during a long period. Thanks to this unique design, our bellows largely exceed in performance other bellows in the market.

- High Safety

- High Temperature Resistance

- High Pressure Resistance up to 10 bars

- High Vacuum Resistance

- High Flexibility

- Long Life

- Low Permeability

- Large Expansion

 

1. Flange - GGG 40 (0.7043), coated

2. PTFE expansion joint

3. Threaded holes DIN or ANSI

4. Stainless steel support rings

5. Limit bolts St/PE sleeved

 

ND

Installation Length

AX. Mouv.
+/- /Conv.

LAT. Mouv.
/Conv.

Ang. Misal.
/Conv. 

2 Conv.

3 Conv.

+/Conv.

25

 45

 55 

 12 

4,5 

 3 

 6,5 

32

 55

65

13

4,5

3

6

40

 55

70

15

5

3,5

6

50

 60

70

16

5

3,5

5,5

65

 60

80

20

5,5

4

5

80

 65

90

24

5,5

4

5

100

 70

95

25

6

4,5

4,5

125

 75

100

25

6,5

4,5

4

150

 75

105

25

7

4,5

3,5

200

 80

110

25

7,5

5

3

250

 90

120

26

8

5

3

300

 95

125

26

8

5

2,5

350

 100

125

26

8,5

5

2,5

400

 100

 135 

 26 

 8,5 

5

 2 

450

 100

 135 

26

8,5

5

2

500

 105

 140 

 26 

5,5 

 2 

600

 105

140

 26 

5,5 

1,5 

 
 
 

P-T Diagram

Available on dimand:

- Quality Certificate according to Pressure Equipment Directive 97/23/EC

- Conductive PTFE

- Double wall bellows with cavity safety drain

- Flangees in 304 Inox (1.4301), 316 Ti (1.4571), with or without 3.1 certificate

- With non-standard connections

- Support rings in Monel 400, Hastelloy C3, Hastelloy C4, ..

- Special fittings to avoid distorsion on longer bellows

- Internal anti-deposit sleeve

- Larger sizes up to DN 900

 

Standard Flanges ASA 150 or DIN, others on request