Range of expansion joints with adaptable design

M Series

  • AR/CN
  • DW
  • EPC
  • GZ
  • YP
  • TE
  • HH
  • DN 500 to 2200
  • 8 bar
  • L 225 to 300mm
  • One-piece counter flanges

The M series is available in a standard design but can also be produced in new shapes, lengths, and double-wave configurations to meet the most demanding specifications. The M series is also available in DN > 2200. Contact us for details!

M Series
non-contractual images

Table of Dimensions and Mechanical Performance

Different drilling diameters and templates are available for this series. The corresponding displacement capacities are shown in the table below.

Technical Specifications - Dilatoflex® M

Maximum permissible displacements (maximum values do not apply simultaneously)

TYPEDNNominal diameterLn (mm)Ln (mm)Ln (mm)PN 2.5—PN 6/ PN 10/CL150PS (bar)Vacuum ring required if vacuum greater thanAxial Compression Ln-Lc (mm)Axial Elongation Le-Ln (mm)Lateral Shearing R (mm)Angular Angle α° (degree)Reaction force (kdaN) PReaction force (kdaN) VApproximate mass (kg)
MD 4050020225250X4100%200302.31.72.342
MD 4060024225250X4100%200301.91.43.253
MD 4080032250X4100%200301.41.15.682
MD 40100040250300X4100%200301.10.98.5111
MD 40120048300X4100%200300.90.712.1179
MD 40140056300X4100%200300.80.616.4225
MD 40160064300X4100%250300.90.521.2345
MD 40180072300X4100%250300.80.526.7392
MD 40200080300X4100%250300.70.432.9450
MD 40220088300X4100%250300.70.439.6525
MS 5050020250X60%2015304-2.449
MS 5060024250X60%2015303.3-3.460
MS 5080032250X60%2015302.5-5.892
MS 50100040250300X60%2015302-8.8122
MS 50120048300X60%2015301.7-12.4200
MS 50140056300X60%2015301.4-16.4251
MS 50160064300X60%2015301.2-21.5391
MS 50180072300X60%2015301.1-27438
MS 50200080300X60%2015301-33.1500
MS 50220088300X60%2015300.9-39.9580
MA 6050020250300X80%3030306.8-2.654
MA 6060024250300X80%3030305.7-3.668
MA 6080032250300X80%3030304.3-6.198
MA 60100040250300X80%3030303.4-9.1135
MA 60120048300X80%3030302.9-12.8215
MA 60140056300X80%3030302.4-17.2273
MA 60160064300X80%3030302.1-22.1405
MA 60180072300X80%3030301.9-27.7454
MA 60200080300X80%3030301.7-33.9514
MA 60220088300X80%3030301.6-40.7617
MB 6050020250300X8100%3010304.64.62.661
MB 6060024250300X8100%3010303.83.83.677
MB 6080032250300X8100%3010302.92.96.1109
MB 60100040250300X8100%3010302.32.39.1149
MB 60120048300X8100%3010301.91.912.8232
MB 60140056300X8100%3010301.61.617.2290
MB 60160064300X8100%3010301.41.422.1426
MB 60180072300X8100%3010301.31.327.7477
MB 60200080300X8100%3010301.11.133.9550
MB 60220088300X8100%3010301140.7645

Notes:

(1) Within the limit of the nominal pressure of the connection template used

(2) Counter flanges in 1 part in galvanized steel, bichromated zinc-plated steel, stainless steel.

(*) For other lengths. Contact us to discuss your requirements.

(**) For other connection templates. Contact us to discuss your requirements.

(***) For higher displacement values. Contact us to discuss your requirements.

For all other intermediate diameters and up to DN 2800 mm. Contact us to discuss your requirements.

Tube quality and operating temperatures

Determining the quality must take into account the nature of the fluid as well as the operating temperature range. The qualities mentioned below provide an indication of compatibility with various industrial fluids, under positive and negative temperature conditions.

AR/CN
Abrasive or corrosive products
Industrial water
Sea water
Low temperature water vapor
-35°C+90°C
DWACS drinking water approval
Drinking water, cold and hot domestic water
-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
YPGHS06 hazard pictogram: toxic
Strong acids and bases, harsh chemicals
-25°C+100°C
TE
Industrial water, acidulated water, diluted acids and bases
-25°C+100°C
HH
Wastewater with traces of hydrocarbons, hydrogen gas, nitrogen
-20°C+90°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

After assembly and/or commissioning/recommissioning of the installation, check the tightening torque every 24 hours for 3 to 5 days. Retighten to the correct torque if necessary.

The most alarming sign of visual wear is cracks or fissures exposing the expansion joint's carcass. Checking the hardness with a durometer is another way to monitor the ageing of the expansion joint.

The repair process is delicate. It is recommended to replace the expansion joint.

The ideal pipe flanges are those with a flat face. Mounting on flanges with a raised face, an annular seal, a push-fit connection, or a collar is not recommended. For push-fit flanges, ensure that the end of the pipe is neither protruding nor recessed from the mounting face and that there are no visible welds.