Central heating and air conditioning water,
Abrasive or corrosive products
Industrial water
Sea water
Low temperature water vapor
AR/CC
16 bar max
-35°C+90°C
10 bar max
-35°C+110°C
Range of self-stabilizing expansion joints
K Series
- AR/CC
- DW
- EPC
- GZ
- YP
- TE
- DN 32 to 300
- 16 bar
- L 130mm
Thanks to its self-stabilizing design, the K series exerts no stress on the piping at its equilibrium length. Simplify your support calculations and eliminate the need for tie rods.
Table of Dimensions and Mechanical Performance
This table groups together the physical dimensions, service pressures and permissible movements for each nominal diameter (DN).
Technical Specifications
Maximum permissible displacements (maximum values do not apply simultaneously)
| DN | Nominal diameter | Nominal length Ln (mm) | PN 10 | PN 16 | PN 20 | Max. W.P. (bar) | Steel ring required for vacuum greater than …% vacuum | Axial Compression Ln-Lc (mm) | Axial Elongation Le-Ln (mm) | Lateral Shearing R (mm) | Angular Angle α° (degree) | AUTOSTABLE at its equilibrium length (Lq in mm, reaction force = 0 daN) | Approximate weight (steel flanges PN 10 / PN 16) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 32 | 1 1/4 | 130 | X | X | - | 16 | 100% | 25 | 10 | 15 | 20 | 130 | 3.0 |
| 40 | 1 1/2 | 130 | X | X | X | 16 | 100% | 25 | 10 | 15 | 20 | 130 | 3.4 |
| 50 | 2 | 130 | X | X | X | 16 | 30% | 25 | 10 | 15 | 20 | 130 | 4.0 |
| 65 | 2 1/2 | 130 | X | X | X | 16 | 30% | 25 | 10 | 15 | 20 | 130 | 4.7 |
| 80 | 3 | 130 | X | X | X | 16 | 30% | 25 | 10 | 15 | 17 | 130 | 5.0 |
| 100 | 4 | 130 | X | X | X | 16 | 30% | 25 | 10 | 15 | 14 | 135 | 6.2 |
| 125 | 5 | 130 | X | X | X | 16 | 30% | 25 | 15 | 15 | 14 | 140 | 7.7 |
| 150 | 6 | 130 | X | X | X | 16 | 30% | 20 | 15 | 15 | 10 | 140 | 10.0 |
| 200 | 8 | 130 | X | X | X | 16 | 30% | 20 | 20 | 15 | 10 | 145 | 12.2 |
| 250 | 10 | 130 | X | X | X | 16 | 30% | 15 | 25 | 15 | 8 | 150 | 16.7 |
| 300 | 12 | 130 | X | X | X | 16 | 30% | 15 | 30 | 15 | 7 | 155 | 20.0 |
Notes:
(1) Other drillings available (e.g. PN6, PN25, BS 10D-E). Contact us to discuss your requirements.
(2) Limited to the nominal pressure of the used drilling standard
(3) Particular cases:
- CC grade: W.P. 10 bar at +110 °C max. and W.P. 16 bar at +90 °C max.
- DW grade: W.P. 12 bar at +105 °C max. and W.P. 16 bar at +90 °C max.
- The DW quality includes an ACS (Sanitary Conformity Certificate) approved elastomer tube.
Tube quality and operating temperatures
To assist our customers in choosing the most suitable material for their applications, the quality standard demonstrates the compatibility of different elastomers with a wide range of industrial fluids and associated temperature ranges of use.
DW
Drinking water, cold and hot domestic water
16 bar max
-25°C+90°C
12 bar max
-25°C+105°C
EPC
Food products (IANESCO)
-25°C+95°C
GZ
Gaseous compressed air, fuel oil, petroleum products with aromatic content < 40%, domestic water
-20°C+90°C
YP
Strong acids and bases, harsh chemicals
-25°C+100°C
TE
Industrial water, acidulated water, diluted acids and bases
-25°C+100°C
Need technical assistance?
Our team is at your disposal to assist you in the selection and sizing of your Dilatoflex® expansion joints
Contact us
FREQUENTLY ASKED QUESTIONS
Frequently Asked Questions
Self-stability is a phenomenon where forces balance and cancel each other out, generating no force on the piping, specific to the expansion joints of the K series.
On request, Anvis can offer AUTOSTABLE double-bellows expansion joints in 250 or 275 mm lengths.