These rubber pump flexible bellows are designed for
installation on to vibrating equipment to reduce the
transmission of noise and vibration to the attached
pipeline system.
SPECIFICATION
Working Temperature: -10 to 90°C
Max. Working Pressure: 16 Bar at Ambient
Vacuum Rating: 700mm HG
Applicable Fluids: Water, Warm Water, Sea
Water, Air, Weak Acid
Test Pressure: 1.5 x Working Pressure
(24 Bar Max.)
Flanges Standard: BS4504, PN16 or PN6
The rubber pump flexible connectors should not be used at
both their maximum working temperature and pressure
simultaneously.
MATERIALS OF CONSTRUCTION
1. Body (Outer Layer): EPDM
2. Body (Inner Layer): EPDM
3. Reinforcing Fabric: Nylon Fabric
4. Wire: Hard Steel Wire
5.
Flange: Mild Steel
Flanged Untied Rubber Flexible Connectors
Operating Temperature Against Operating Pressure
Operating Temp °C Ambient 50 60 70 80
Max Operating
Pressure (Bar)
16 12.4 10 7.5 6.5
90
5.2
Nominal Pipe Size
(mm)
Neutral
Length
(L) (mm)
Axial
Compression
(mm)
Axial
Elongation
(mm)
Lateral Deflection
(+ or - mm)
Angular
Deflection (+ or - deg)
32 130 12 10 12 15
40 130 12 10 12 15
50 130 12 10 12 15
65 130 12 10 12 15
80 130 12 10 12 15
100 130 12 10 12 15
125 130 12 10 12 15
150 130 12 10 12 15
200 130 12 10 12 15
250 130 12 10 12 15
300 130 12 10 12 15
Internal
Diameter (ID)
29 ± 3
37 ± 3
47 ± 3
62 ± 3
77 ± 3
95 ± 3
120 ± 5
145 ± 5
195 ± 5
245 ± 8
295 ± 8
ID
Also available in Nitrile/NBR for Oil service.
These rubber pump flexible bellows are designed for
installation onto vibrating equipment to reduce the
transmission of noise and vibration to the attached
pipeline system.
SPECIFICATION
Working Temperature: -10 to 90 ºC
Max. Working Pressure: 16 Bar at Ambient
350-400mm sizes: 10 Bar
Vacuum Rating: 700mm HG
Applicable Fluids: Water, Warm Water, Sea
Water, Air, Weak Acid
Test Pressure: 1.5 x Working Pressure
(24 Bar Max.)
Flanges Standard: BS4504 PN10, PN16, PN6
MATERIALS OF CONSTRUCTION
1. Body (Outer Layer): EPDM
2. Body (Inner Layer): EPDM
3. Reinforcing Fabric: Nylon Fabric
4. Wire: Hard Steel Wire
5. Oval Flange: Mild Steel (Plated)
Flanged Tied Rubber Flexible Connectors
NB
(mm)
Neutral Length (L)
(mm)
Axial Compression
(mm)
Axial Elongation
(mm)
Lateral Deflection
(+ or - mm)
Angular Deflection
(+ or - deg)
32 130 12 2 12 15
40 130 12 2 12 15
50 130 12 2 12 15
65 130 12 2 12 15
80 130 12 2 12 15
100 130 12 2 12 15
125 130 12 2 12 15
150 130 12
2
12 15
200 130 12 2 12 15
250 130 12 2 12 15
300 130 12 2 12 15
350* 266 25 3 18 15
400* 266 25 3 18 15
Operating Temperature Against Operating Pressure
Operating Temp °C Ambient 50 60 70 80 90
Max Operating
Pressure (Bar)
16 12.4 10 7.5 6.5 5.2
* 10 Bar
Also available in Nitrile/NBR for Oil service.
These rubber pump flexible connectors are designed for
installation onto vibrating equipment to reduce the
transmission of noise and vibration to the attached pipeline
system. They are suitable for use with water, warm water,
sea water, air and weak acid.
SPECIFICATION
Working Temperature: -10 to 80°C
Max. Working Pressure: 16 Bar at Ambient
Temperature
Vacuum Rating: 500mm HG
Test Pressure: 1.5 x Working Pressure
(24 Bar Max.)
MATERIALS OF CONSTRUCTION
1. Body (Outer Layer): EPDM
2. Body (Inner Layer): EPDM
3. Reinforcing Fabric: Nylon Fabric
4. Union Flange: Malleable Iron (Galvanised)
5. Union Nut: Malleable Iron (Galvanised)
6. Union Screw: Malleable Iron (Galvanised)
The rubber pump flexible connectors should not be used at
both their maximum working temperature and pressure
simultaneously.
BSP
Female Rubber Flexible Connectors
Nominal
Diameter (mm)
Neutral Length
(L) (mm)
Axial
Compression (mm)
Axial
Extension (mm)
Lateral
(+ or - mm)
Angular
(+ or - mm)
15 165 22 6 22 30
20 165 22 6 22 30
25 175 22 6 22 30
32 186 22 6 22 30
40 186 22 6 22 30
50 200 22 6 22 30
Operating Temperature Against Operating Pressure
Operating Temp °C Ambient 50 60 70 80
Max Operating Pressure (Bar) 16 9.6 7.5 6.2 5
Interflex Hose & Bellows Ltd. • www.interflex.co.uk
Ludlow Eco Park • Ludlow • Shropshire • SY8 1FF • United Kingdom
Tel: +44 (0)1584 878500 • Email: enquiries@interflex.co.uk
NOTES
• Higher temperatures affect movement and pressure.
As temperature increases, rated value must be
reduced accordingly.
•
Pressures shown are recommended ‘operating’ - test
pressure is 1.5 times ‘operating’.
• Vacuum rating is based on neutral installed length
without external load. Products shall not be installed
‘elongated’ on vacuum applications.
• Expansion joints may operate in pipelines or
equipment carrying fluids at evaluated temperatures
and pressures.
• Normal precautions shall be taken to make sure
these parts are installed correctly and inspected
regularly.
• Precautions should be taken to protect personnel in
event of leakage or splash.
• Bellows for fluids other than those above are
available on request.
INSTALLATION
Please refer to the Expansion Joint Installation sheet for guidance as to the correct handling and
installation of these flexible connectors.
Please Note: The above vacuum rating is based on the installation length without an external load. These
products must not be installed ‘elongated’ on vacuum applications. Please contact the sales office for further
information.
For options such as alternative sizes, end fittings or materials, or to discuss a specific application requirement,
please contact the sales office.
The rubber pump flexible connectors should not be used at both their maximum working temperature and
pressure simultaneously.
Interflex Hose & Bellows Ltd. • www.interflex.co.uk
Ludlow Eco Park • Ludlow • Shropshire • SY8 1FF • United Kingdom
Tel: +44 (0)1584 878500 • Email: enquiries@interflex.co.uk
TYPICAL
INSTALLATION
