Emsal Vana
Products / Expansion joints · 310–329 / Rubber expansion joint
PRODUCT GROUP 311 · EXPANSION JOINTS

Rubber expansion joint

Rubber expansion joints are flexible connectors that absorb vibration, expansion, contraction, misalignment and mechanical stresses in pipelines. Their highly elastic rubber body accommodates movement in the system, reduces noise and extends equipment life.

RUBBER EXPANSION JOINTTYPE 311 · EMSAL VANA
DN
25 – 300
PN
16
MATERIAL
SS316 · SS304
STANDARD
DIN
CONNECTION
EN 1092-1
TEST
10879
FLOW DIRECTION
Valve selection guide →
Not listed? Send us your drawing for a custom size or material →
Rubber expansion joint

Technical data

01
Nominal sizeDN25 – DN300
Pressure ratingPN16
Service temperature
≤ +90 °C
Manufacturer's declaration. Exact value in the quotation.
StandardDIN
Connection typeFlanged
DesignTS 10879 DIN 30680
Face-to-face dimensionTS 10879 DIN 30680
End connection standardEN 1092-1EN 1092-1Flanges — steel flanges, PN designated ISO 7005-1ISO 7005-1Metallic flanges — steel flanges
TestTS 10879 DIN 30680

The standards listed apply to stocked products. Contact us for other standards.

Material

02

Material options for rubber expansion joints are listed below.

Bellows
NBREPDM
Flange
SS316SS316LSS316TiSS304ST-37
Coating
for Fe-C materials
NickelZincElectrostatic powder coatingWRAS-approved epoxy coating

Features

03

Advantages

  • Isolates vibration and noise
  • Absorbs thermal expansion
  • Tolerates installation misalignment
  • Compact, lightweight design
  • Easy installation and maintenance
  • Economical – especially in low/medium-pressure systems

Applications

  • HVAC systems (heating, cooling, ventilation)
  • Pump and compressor discharges
  • Water and wastewater treatment plants
  • Ship machinery and seawater lines
  • Chemical process lines (with a suitable rubber grade)
  • Fire-fighting systems
  • Industrial pipelines

Downloads

04
DatasheetPDF · TR/EN · dimension table, parts list
Open datasheet
CAD modelSTEP · DXF · by nominal size
IN PREPARATION
3.1 certificate samplePDF · EN 10204 · TR/EN
Open sample

Related products

05
Rubber expansion joint · 311 · SS316 · DN25–DN300 · PN16