mm
inch
Nominal length (Ln in mm)
Steel ring required for vacuum greater than …%
Max. permissible pressure (bar) (2) (3) (4)
PN 10
PN 16
class 150 (PN 20)
Axial stiffness in daN at no pressure
for 1cm axial displacement
Approx. weight in kg (bellow only) (5)
ND NPS
Nominal
Diameter
End thrust in daN for P= 1 bar
O.D.
(mm)
Drilling standards (1)
ISO 2084
NF EN 1759-1
NF EN 1092-1
(1) Other drillings available (e.g. PN6, PN25, PN40, BS10 Table E…). Please consult us.
(2) CC rubber grade : max. operating conditions : Pressures as listed above @ 90°C ; 10 Bar @ 110°C.
(3) ES rubber grade : max. operating conditions : 25 Bar @ 70°C ; 16 Bar @ 140°C.
(4) Limited to the nominal pressure of the drilling standard being used.
(5) Expansion joints to be mounted with steel backing flanges in 2 parts
(zinc-plated, hot-dip galvanized or stainless steel).
DIMENSIONAL DATA TECHNICAL DATA
Axial
Compression
mm
Elongation
mm
Lateral
mm
Angle
α°
degree
Lateral
Angular
Max. Permissible Movements
(not concurrent)
20
25
32
12
15
15
8
8
8
10
10
10
30
25
20
4.0
6.0
8.5
62
70
85
0.4
0.4
1.4
3/4
1
1 1/4
105
115
140
105
115
120
150
150
150
12
12
12
-
-
-
40
50
65
80
100
125
150
175
200
225
250
300
350
400
450
30
30
30
30
30
30
30
30
30
30
25
25
25
25
25
20
30
30
30
30
30
30
30
30
30
30
30
30
30
30
15
15
15
15
15
15
15
15
15
15
30
30
30
30
30
20
20
20
20
20
10
10
10
10
10
9
8
7
6
5
48
80
115
138
190
270
370
445
560
700
800
1000
1300
1700
2000
8
13
23
34
38
42
49
57
58
60
55
65
75
85
95
1.1
1.3
1.6
1.9
2.4
2.5
3.0
3.6
4.0
4.6
8.0
10.0
11.5
14.0
15.0
1 1/2
2
2 1/2
3
4
5
6
7
8
9
10
12
14
16
18
150
165
185
200
220
250
285
315
340
370
405
460
520
580
640
130
165
185
229
250
285
340
405
485
533
597
640
150
150
150
150
150
150
150
150
150
150
200
200
200
200
200
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
-
-
-
-
50
50
50
50
50
50
50
50
50
50
50
250
300
350
400
450
60
60
60
60
60
60
60
60
60
60
45
45
45
45
45
25
22
18
16
14
800
1100
1500
1900
2400
34
34
34
44
44
11.0
13.0
15.0
17.0
19.0
10
12
14
16
18
405
460
520
580
640
405
485
533
597
640
300
300
300
300
300
16
16
16
16
16
30
30
30
30
30
DILATOFLEX
®
NT
Example of Label
16 bar
-20°C/90°C
®
DIL ATOFLEX GZ
NT
Ø ND
Ø O.DD
Ln
NT
Ø ND
Ø O.D.
Ln
NT 1
Ø ND
Ø O.D.
Ln
NT 2
TE
Mauve label
ES
Steel carcass
AB
Grey label
YP
Yellow label
GZ
Orange label
AR / CN
Red label
Inner
lining
grades
NT NT 1 NT 2
CC
Green label
EPC
Cream label
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
TYPE
NT1 NO LONGER MANUFACTURED - SEE REPLACEMENT TYPE T
TYPE NT2 NO LONGER MANUFACTURED - SEE REPLACEMENT TYPE T2
TYPE
NT DN20 / DN25 / DN32 STILL AVAILABLE
Rubber Bellows Expansion Joints - Flexible Pump Bellows Compensators
CC
GZ
YP
DW
AR/CN
E P C
TE
Th
e expansion joint Type T allows
big displacement, high resistance to
pressure and a very good behaviour
in exceponal condions.
Range of diameters:
ND 32 - 40 - 50 - 65 - 80 - 100 - 125
150 - 200 - 250 - 300 - 350 mm
AB
Example of label:
16 bar
- 90°C
10 bar - 110°C
16 bar - 90°C
16 bar - 100°C
16 bar - 95°C
16 bar - 90°C
12 bar - 105°C
*normal condions : 1 x 10
6
cycles
Working condions:
Displacements
Normal*
AXIAL
Compression 30 mm
Elo
ngaon
30
mm
LATERAL
20
mm
Lengths :
DN 32 to 200 : 150 mm
DN 150 to 350 : 200 mm
25 ba
rs @ 55°C possible on
request with model
DIL-TP.
Angular displacement
DN (mm)
32
40
50
65
80
100 125 150 200 250 300 350
Normal (°) 20
20 20 20 20
20
10 10 10 10 10
9
The best among expansion joints
Drinking water agreement
Grade DW
Distributor:
Mercia Flexibles • www.merciaflexibles.co.uk
Unit 19 FlexSpace Enterprise Centre • 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 Compensators
DILATOFLEX TYPE T
Rubber Bellows Expansion Joints - Flexible Pump Bellows
for Pipework for Anti-Vibration, and the Absorption of
Movement and Thermal Expansion in Pipelines
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
f
Central heating and
air conditioning water
-35 °C
+90 °C/
110 °C
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
White label | ES
f
Steel Mesh Reinforced
f
Superheated water
f
Hot water vapour
-35 °C +140 °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
Mauve label | TE
f
Industrial water
f
Acidic water
f
Diluted acids and bases
-25 °C +100 °C
White label | F1
f
Special highly agressive products
(Working pressure limited to 6 bar max.)
-35 °C +110 °C
The inner lining to be used for a specific fluid (composition, concentration,
temperature, etc.) should be selected according to our Chemical Resistance Chart.
PTFE liner
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