PTFE Expansion Joint Type R-HD (Heavy Duty)

PTFE mulit-laminated tubes, that ensure an absolute minimum porosity 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 16 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 Lenght

AX. Mouv.
+/- /Conv.

LAT. Mouv.
/Conv.

Ang. Misal.
/Conv. 

2 Conv.

3 Conv.

+/Conv.

25

 45

 55 

 12 

3

 2 

 4,5 

32

 55

65

13

3

2

4

40

 55

70

15

3,5

2,5

4

50

 60

70

16

3,5

2,5

3,5

65

 60

80

20

4

3

3,5

80

 65

90

24

4

3

3,5

100

 70

95

25

4,5

3

3

125

 75

100

25

4,5

3

3

150

 75

105

25

5

3

2,5

200

 80

110

25

5

3,5

2

250

 90

120

26

5,5

3,5

2

300

 95

125

26

5,5

3,5

1,5

350

 100

125

26

6

3,5

1,5

400

 100

 135 

 26 

 6 

3,5

 1,5 

450

 100

 135 

26

6

3,5

1,5

500

 105

 140 

 26 

 6,5 

4

1,5

600

 105

140

 26 

6,5

 4 

 

P-T Diagram

Available on demand:

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

- Conductive PTFE

- Double wall bellows with cavity safety drain

- Flanges 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 ND 900

 

Standard Flanges ASA 150 or DIN, others on request.