Stenflex DN800 Rubber Compensator

Data sheet A-2, A-4/1-H21
RUBBER EXPANSION JOINT TYPE A-2, A-4
Please comply with the general technical instructions regarding reaction
force, moving force, fixed point load, installation instructions etc.
Subject to technical alterations and deviations resulting from the manufacturing process.
LATERAL EXPANSION
JOINT DN 20 – DN 1000
STRUCTURE TYPE A-2, A-4 / RUBBER BELLOWS PN 16 Type A-2: Lateral expansion joint consisting of a rubber bellows with
rotable flanges and tie rods (external restraints) to absorb reaction force
from internal pressure Type A-4: Lateral expansion joint consisting of a rubber bellows with
rotable flanges and tie rods (external and internal restraints) to absorb
reaction force from internal pressure or vacuum Highly elastic molded bellows in various rubber grades
Synthetic fibre reinforcement Wire-reinforced self-sealing rubber rim
Electrical impedance 103 to 106 Ohm (DIN IEC 93, VDE 0303-30 Rubber grade*
EPDM
NBR
CIIR
Colour code
orange
red
white
Hot water, acids, lyes
hydrocarbon containing liquids
Drinking water
Possible uses
*Check or inquire about the resistance of the rubber grade to temperature and medium
Technical design Max. perm. operating pressure
16 bar*
Max. perm. temperature
+100 °C
Bursting pressure
≥ 48 bar
Vacuum operation
DN 20 – 50 without vacuum supporting ring,
DN 65 – 1000 with vacuum supporting ring
Max. operating pressure to be set 30 % lower for shock loads.
*Please consider a decrease of pressure due to temperature (see technical annex).
FLANGES / VERSIONS
Standard
32
APPLICATIONS for reducing thermal and mechanical tension in pipes and their system components, e.g.
pumps compressors engines for muffling vibration and noise for compensating lateral
movement to compensate for installation inaccuracies to compensate for ground and
foundation settlement or tank settlement during filling
TIE ROD RESTRAINTS DN 20 – DN 150 Tie rods carried on silencing rubber sockets
DN 175 – DN 1000 Tie rods carried on spherical washers and conical seats
Materials Standard: tie rods 8.8 Others:
stainless steel Corrosion protection Standard: electrogalvanized Others:
hot-dip galvanized
CERTIFICATES
Flanges with stabilizing collar and ears to carry the tie rods Flange drilling for through bolts
Special machined groove for rubber rim Others
Dimensions
EN 1092
ANSI, BS etc. Connection dimensions see technical annex page 213 – 215
Materials
1.0038 (S235JR)
1.4571
Corrosion protection
DN 20 –
DN 400 electrogalvanized
special varnish, special coating, etc.
DN 450 –
DN 1000 hot-dip galvanized
NOTE

CE (PED 2014/68/EU) Bureau Veritas
DNV GL® / DNV ® Lloyd’s Register of Shipping Drinking water TÜV Süd (KTA)
Others see technical annex