Number of Convolutions
PN6 - PN 10
PN 16
class 150 (PN 20)
Approx. weight in kg (bellow only) (2)
ISO 2084
NF EN 1759-1
NF EN 1092-1
TECHNICAL
DIMENSIONAL DATA
DATA
mm
inch
Nominal length (Ln in mm)
ND NPS
Nominal
Diameter
O.D.
(mm)
Drilling standards (1)
Steel ring required for vacuum greater than …%
Max. permissible pressure (bar)
End thrust in daN for P= 1 bar
Axial
Compression
Ln - Lc
mm
Elongation
Le - Ln
mm
Shearing
R
mm
angle
α°
degree
Lateral
Angular
Max. Permissible Movements
(not concurrent)
500
550
600
700
750
800
850
900
1000
1100
1200
1250
1300
1400
1500
1600
1700
1800
2000
2200
2400
2500
2600
3000
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
40
20
40
40
20
40
40
40
40
40
40
40
20
40
20
40
40
20
150
150
50
150
150
150
30
30
40
40
20
40
40
40
40
30
40
40
20
40
20
30
30
20
100
150
40
100
150
100
20
15
20
20
15
20
20
20
20
20
20
20
15
20
15
20
20
15
50
75
20
50
75
50
6,0
4,0
7,0
6,0
3,0
5,0
5,0
5,0
4,0
3,0
3,0
3,0
1.5
3,0
1.5
2,0
1.5
1,0
5,0
7,0
1.5
4,0
6,0
3,0
2.5
3.0
3.8
4.9
5.3
6.3
7.0
8.8
9.4
10.7
13.2
14.2
14.8
17.6
20.0
22.4
25.2
27.8
38.3
48.2
49.6
56.8
64.4
79.3
30
40
43
44
60
67
70
80
84
100
120
115
115
150
170
183
215
225
275
400
300
450
500
550
20
22
24
28
30
32
34
36
40
44
48
50
52
56
60
64
68
72
80
88
96
100
104
120
670
775
780
895
965
1015
***
1115
1230
1340
1455
***
1565
1675
1785
1915
1940
2115
2325
2550
2760
PN 2.5
2705
2805
3230
715
775
840
910
970
1025
***
1125
1255
1390
1585
***
***
1675
1820
2345
2555
2765
2765
2840
2840
698
840
910
984
1085
***
1168
1340
1530
***
1675
300
300
300
300
300
400
400
400
400
400
400
400
400
400
400
400
400
400
750
750
400
750
750
750
10
10
10
10
10
10
10
10
10
6
6
6
6
6
6
6
6
6
1,5
1,5
4
1,5
1,5
1,3
20
20
20
20
20
20
20
20
20
20
20
10
10
10
10
10
10
10
-
-
-
-
-
-
(1) Other drillings available (e.g. BS10D-E, AWWA….). Please consult us.
(2) Expansion joints to be mounted with steel backing flanges in 2 parts
(zinc-chromated, hot-dip galvanized or stainless steel).
(***) Non standard drilling.
DILATOFLEX
®
N
Example of Label
DILATOFLEX
®
N
HH
Blue label
AB
Grey label
DW
YP
Yellow label
EPC
Cream label
GZ
Orange label
AR / CN
Red label
Inner
lining
grades
Ø O.D.
Ø DN
Ln
Distributor:
Mercia Flexibles • www.merciaflexibles.co.uk
Ludlow Eco Park • Ludlow • Shropshire • SY8 1FF • United Kingdom
Tel: +44 (0)1584 874999 • Email: dilatoflex@merciaflexibles.co.uk
Rubber Bellows Expansion Joints - Flexible Pump Bellows
for Pipework for Anti-Vibration, and the Absorption of
Movement and Thermal Expansion in Pipelines
Large Bore
Blue label
AN EFFICIENT SOLUTION
FOR A WIDE RANGE OF APPLICATIONS
BUILDING INDUSTRY
f Central heating and
air conditioning
f Hot and cold water systems
f Fire extinction systems
POWER GENERATION
PETROLEUM INDUSTRY
f Cooling systems
f Fuel handling
NAVAL CONSTRUCTION
f
Machine cooling systems
f
Sanitary installations
f
Fire extinction systems
f
Fuel handling
METALLURGY
f Blast furnace gas
f Compressed air
f Industrial water systems
WATER TREATMENT
f
Production and distribution
of drinking water, waste
water treatment
FOOD INDUSTRY
f Drinking water and other
beverage and foodstuff
handling systems
CHEMICAL INDUSTRY
Fluid handling systems:
f
acids, bases, hydrocar-
bons, emulsions, solutions,
air, gas, steam, water, etc.
Operating Principles
f Cooling systems, pumping
stations, etc. for conventional
and nuclear power plants
AXIAL COMPRESSION
AXIAL ELONGATION
LATERAL DEFLECTION
ANGULAR DEFLECTION
WATER HAMMER REDUCTION
ELIMINATION OF VIBRATION
Lining Grade
Identification colour
and designation
Typical Applications W.T.
Working
temperatures
Green label | CC
Blue label | DW
f Drinking Water Approved
f Domestic cold and hot water
-25 °C
+90 °C/
105 °C
Cream label | EPC
f Food products
f White Food Grade liner
f Option Stainless Steel flanges
-25 °C +95 °C
Red label | AR/CN
f
Abrasive or corrosive products
(weak acids and bases)
f Industrial water, sea water
f
Low-temperature water vapour
-35 °C +90 °C
Orange label | GZ
f Gas, compressed air, fuel, oil
f
Petroleum products with aromatic
content < 40%
f Sanitation water
-20 °C +90 °C
Blue label | HH
f
Industrial and waste water
f Hydrogen gas, nitrogen
-20 °C +90 °C
Yellow label | YP
f Strong acids
f Strong bases
f Aggressive chemicals
-25 °C +100 °C
Grey label | AB
f Strong acids
f
Strong bases
f
Weak chlorinated products
-35 °C +100 °C
The inner lining to be used for a specific fluid (composition, concentration,
temperature, etc.) should be selected according to our Chemical Resistance Chart.
DILATOFLEX
Distributor :
Mercia Flexibles • www.merciaflexibles.co.uk
Ludlow Eco Park • Ludlow • Shropshire • SY8 1FF • UK
Tel.: +44 (0)1584 874999 • Email: dilatoflex@merciaflexibles.co.uk
Rubber Bellows Expansion Joint Compensators
& Flexible Pump Bellows
