Chlorobutyl Rubber Bellows Flexible Connectors
EMFLEX chlorobutyl (often shor
tened to butyl) rubbe
r
flexible connectors are comprised of a synthetic rubbe
r
membrane reinforced
with nylon. The collars are wire
reinforced and the unit is complete with carbon steel
flanges. They are capable of absorbing movement in
several directions; axial compression, axial elongation
and lateral deflection. A small amount of angula
r
movement may also be allowed. They are normally
installed in the pipework to isolate various items of plant
which produce noise and vibration. These flexible
connectors effectively dampen the transmission of sound
and vibration from plant items in building services
installations.
Type BB Untied
Chlorobutyl rubber membrane reinforced with a nylon
textile cord and fitted with untied (circular) zinc plated
carbon steel flanges. Suitable for use on hot water and
chilled water under 4 bar unless the pipework is
secured.
Design Consideration:
Rubber flexible connectors are subjected to the same
internal pressure force
as metal expansion joints and that
the same force is equal to the internal pressure multiplied
by the maximum internal area. This force causes the
connector to lengthen and tied units are recommended
where the working pressure exceeds 4 bar, unless the
pipework is secured to restrict movement.
T
ie rods are fitted through oval flanges and to isolate the
tie-rods from the special neoprene top hat washers are
used to prevent any metal to metal contact whatsoever,
effectively preventing noise transmission.
After Installation of TIED UNITS the tie-rod nuts should be
checked to have 1mm clearance over the steel washers.
When using with items of plant mounted on vibration
isolators, such as springs or inertia bases, then TIED units
must be installed.
Working Pressure:
4 bar (400kPA) for untied units, unless pipe is secured.
10 bar (1000kPA) for tied units with top hat washers.
16 bar (1600kPA) PLEASE CONTACT OUR OFFICES.
Test Pressure: 1.5 x Working Pressure
Working Temperature: -10°C to 95°C
Key Features:
Fully traceable and has the date of manufacture,
nominal diameter, manufacturer, and type permanently
moulded into the membrane.
Noise and vibration reduction capabilities.
All Tied units are fitted with noise absorbing top hat
washers.
Untied & Tied Unit
Untied Units Only Untied & Tied Unit
Nominal Bore
Installed Overall
Length
Axial Com
p
ression
Axial Elon
g
ation Lateral Deflection
mm mm mm mm mm
25 95 8 4 8
32 95 8 4 8
40 95 8 4 8
50 105 8 4 8
65 115 12 6 10
80 130 12 6 10
100 135 18 10 12
125 170 18 10 12
150 180 18 10 12
200 205 25 14 22
250 240 25 14 22
Chlorobutyl rubber membrane reinforced with a nylon
textile cord and fitted with tied (oval) zinc plated carbon
steel flanges complete with isolating tie bars. Suitable fo
r
use on hot water and chilled water under 10 bar.
Type
BB Tied
Distributor :
Interflex Hose & Bellows Ltd. • www.interflex.co.uk
Ludlow Eco Park • Ludlow • Shropshire • SY8 1FF • UK
Tel.: +44 (0)1584 878500 • Email: enquiries@interflex.co.uk
EMFLEX
EMFLEX EPDM (
Ethylene Propylene Diene Monomer)
rubber flexible connectors are comprised of a synthetic
rubber membrane reinforced with nylon. The collars are
wire reinforced and the unit is complete with carbon
steel flanges. They are capable of absorbing movement
in several directions; axial compression, axial elongation
and lateral deflection. A small amount of angula
r
movement may also be allowed. They are normally
installed in the pipework to isolate various items of plant
which produce noise and vibration. These flexible
connectors effectively dampen the transmission of sound
and vibration from plant items in building services
installations.
Type EE Untied
EPDM rubber membrane reinforced with a nylon textile
cord and fitted with untied (circular) zinc plated carbon
steel flanges. Suitable for use on hot water and chilled
water under 4 bar unless the pipework is secured.
Design Consideration:
Rubber flexible connectors are subjected to the same
internal pressure force as metal expansion joints and that
the same force is equal to the internal pressure multiplied
by the maximum internal area. This force causes the
connector to lengthen and tied units are recommended
where the working pressure exceeds 4 bar, unless the
pipework is secured to restrict movement.
Tie rods are fitted through oval flanges and to isolate the
tie-rods from the special neoprene top hat washers are
used to prevent any metal to metal contact whatsoever,
effectively preventing noise transmission.
After Installation of TIED UNITS the tie-rod nuts should be
checked to have 1mm clearance over the steel washers.
When using with items of plant mounted on vibration
isolators, such as springs or inertia bases, then TIED units
must be installed.
Working Pressure:
4 bar (400kPA) for untied units, unless pipe is secured.
10 bar (1000kPA) for tied units with top hat washers.
16 bar (1600kPA) PLEASE CONTACT OUR OFFICES.
Test Pressure: 1.5 x Working Pressure
Working Temperature: -10°C to 95°C
Key Features:
Fully traceable and has the date of manufacture,
nominal diameter, manufacturer, and type permanently
moulded into the membrane.
Noise and vibration reduction capabilities.
All Tied units are fitted with noise absorbing top hat
washers.
Untied & Tied Unit
Untied Units Only Untied & Tied Unit
Nominal Bore
Installed Overall
Length
Axial Com
p
ression
Axial Elon
g
ation Lateral Deflection
mm mm mm mm mm
25 130 12 9 12
32 130 12 9 12
40 130 12 9 12
50 130 12 9 12
65 130 12 9 12
80 130 12 9 12
100 130 14 9 12
125 130 14 9 12
150 130 14 9 12
200 130 14 9 12
250 130 14 9 12
EPDM rubber membrane reinforced with a nylon textile
cord and fitted with tied (oval) zinc plated carbon steel
flanges complete with isolating tie bars. Suitable for use on
hot water and chilled water under 10 bar.
Type EE Tied
EMFLEX
Distributor:
Interflex Hose & Bellows Ltd. • www.interflex.co.uk
Ludlow Eco Park • Ludlow • Shropshire • SY8 1FF • UK
Tel.: +44 (0)1584 878500 • Email: enquiries@interflex.co.uk
EPDM Rubber Bellows Flexible Connectors (130 mm Long)
flexible connectors are comprised of a synthetic
rubber membrane reinforced with nylon. The collars are
wire reinforced and the unit is complete with carbon
steel flanges. They are capable of absorbing movement
in several directions; axial compression, axial elongation
and lateral deflection. A small amount of angula
r
movement may also be allowed. They are normally
installed in the pipework to isolate various items of plant
which produce noise and vibration. These flexible
connectors effectively dampen the transmission of sound
and vibration from plant items in building services
installations.
cord and fitted with untied (circular) zinc plated carbon
steel flanges. Suitable for use on hot water and chilled
water under 4 bar unless the pipework is secured.
Design Consideration:
Rubber flexible connectors are subjected to the same
internal pressure force as metal expansion joints and that
the same force is equal to the internal pressure multiplied
by the maximum internal area. This force causes the
connector to lengthen and tied units are recommended
where the working pressure exceeds 4 bar, unless the
pipework is secured to restrict movement.
Tie rods are fitted through oval flanges and to isolate the
tie-rods from the special neoprene top hat washers are
used to prevent any metal to metal contact whatsoever,
effectively preventing noise transmission.
After Installation of TIED UNITS the tie-rod nuts should be
checked to have 1mm clearance over the steel washers.
When using with items of plant mounted on vibration
isolators, such as springs or inertia bases, then TIED units
must be installed.
Working Pressure:
4 bar (400kPA) for untied units, unless pipe is secured.
10 bar (1000kPA) for tied units with top hat washers.
16 bar (1600kPA) PLEASE CONTACT OUR OFFICES.
Test Pressure: 1.5 x Working Pressure
Working Temperature: -10°C to 90°C
Key Features:
Fully traceable and has the date of manufacture,
nominal diameter, manufacturer, and type permanently
moulded into the membrane.
Noise and vibration reduction capabilities.
All Tied units are fitted with noise absorbing top hat
washers.
Untied & Tied Unit
Untied Units Only Untied & Tied Unit
Nominal Bore
Installed Overall
Length
Axial Com
p
ression
Axial Elon
g
ation Lateral Deflection
mm mm mm mm mm
25 130 12 9 12
32 130 12 9 12
40 130 12 9 12
50 130 12 9 12
65 130 12 9 12
80 130 12 9 12
100 130 14 9 12
125 130 14 9 12
150 130 14 9 12
200 130 14 9 12
250 130 14 9 12
cord and fitted with tied (oval) zinc plated carbon steel
flanges complete with isolating tie bars. Suitable for use on
hot water and chilled water under 10 bar.
EMFLEX
Distributor:
Interflex Hose & Bellows Ltd. • www.interflex.co.uk
Ludlow Eco Park • Ludlow • Shropshire • SY8 1FF • UK
Tel.: +44 (0)1584 878500 • Email: enquiries@interflex.co.uk
NBR Rubber Bellows Flexible Connectors (130 mm Long)
Suitable for Oils and Fuel Service.
Emflex NBR (Nitrile / Buna-N / Perbunan) lined rubber
Type N Untied Type N Tied
NBR rubber membrane liner reinforced with a nylon textileNBR rubber membrane liner reinforced with a nylon textile
Suitable for Oils & Fuel Service.
EPDM Rubber Flexible Connectors DIN4809
EMFLEX EPDM (
Ethylene Propylene Diene Monomer)
rubber flexible connectors are comprised of a synthetic
rubber membrane reinforced with a high tensile polyme
r
textile cord. The collars are wire reinforced and the unit
is complete with carbon steel flanges. They are capable
of absorbing movement in several directions; axial
compression, axial elongation and lateral deflection. A
small amount of angular movement may also be
allowed. They are normally installed in the pipework to
isolate various items of plant which produce noise and
vibration. These flexible connectors effectively dampen
the transmission of sound and vibration from plant items
in building services installations.
Type RR Untied
EPDM rubber membrane reinforced with a nylon textile
cord and fitted with tied (oval) zinc plated carbon steel
flanges complete with isolating tie bars. Suitable for use on
hot water and chilled water under 10 bar. They are
approved to DIN4809 for use in heating plants and are
fully certified to this affect.
Type RR Tied
EPDM rubber membrane reinforced with a high tensile
cord and fitted with untied (circular) zinc plated carbon
steel flanges. Suitable for use on hot water and chilled
water under 4 bar unless the pipework is secured. They
are approved to DIN4809 for use in heating plants and
are fully certified to this affect.
Untied & Tied Unit Untied Units Only Untied & Tied Unit
Nominal Bore
Installed Overall
Length
Axial Compression
Axial Elongation Lateral Deflection
mm mm mm mm mm
25 130 30 30 30
32 130 30 30 30
40 130 30 30 30
50 130 30 30 30
65 130 30 30 30
80 130 30 30 30
100 130 30 30 30
125 130 30 30 30
150 130 30 30 30
200 130 30 30 30
250 130 30 30 30
Key Features:
Complies with DIN4809 Parts 1 & 2 and is fully
approved and certified to this affect.
Verified burst pressure of 30 bar gauge minimum afte
r
10 years service. An increased safety point.
Fully traceable and has the date of manufacture, DIN
approval registration number, pressure and
temperature rating, nominal diameter, manufacture,
type and identifiable colour coding permanently
moulded into the membrane.
Laboratory tested for noise and vibration reduction
capabilities. Tied units are fitted with noise absorbing
top hat washers.
Wo
rking
Pressure:
10 bar (1000kPA)
Test Pressure: 1.5 x Working Pressure
Working Temperature: -10°C to 110°C
EMFLEX
Distributor :
Interflex Hose & Bellows Ltd. • www.interflex.co.uk
Ludlow Eco Park • Ludlow • Shropshire • SY8 1FF • UK
Tel.: +44 (0)1584 878500 • Email: enquiries@interflex.co.uk
EMFLEX
twin sphere rubber flexible connectors are
comprised of a twin sphere or double bubble synthetic
rubber membrane reinforced with nylon. The collars are
wire reinforced and the unit is complete with galvanised
or stainless steel female unions. They are capable o
f
absorbing
movement in several directions; axial
compression, axial elongation and lateral deflection.
A
small amount of angular movement may also be
allowed. They are normally installed in the pipework to
isolate various items of plant which produce noise and
vibration. These flexible connectors effectively dampen
the transmission of sound and vibration from plant items
in building services installations.
Type TS
EPDM rubber membrane reinforced with a nylon textile
cord and fitted with stainless steel female unions. Suitable
for use on copper pipework.
Type
TSN
EPDM rubber membrane reinforced with a nylon textile
cord and fitted with galvanised female unions. Suitable
for steel pipework.
Nominal Size
Installed
Length
Axial
Compression
Axial
Elongation
Lateral
Movement
Angular
Movement
mm mm mm mm +/- mm Deg
20 200 22 6 22 40
25 200 22 6 22 40
32 200 22 6 22 40
40 200 22 6 22 40
50 200 22 6 22 40
65 240 22 6 22 40
80 240 22 6 22 40
Working Pressure:
Maximum Working Pressure: 6 bar
Test Pressure: 1.5 x Working Pressure.
Working Temperature: -10°C to 90
°C
Design Consideration:
Rubber flexible connectors are subjected to the same
internal pressure force as metal expansion joints and that
the same force is equal to the internal pressure multiplied
by the maximum internal area.
EMFLEX
Nitrile / NBR option for Oils & Fuels also available.
Distributor:
Interflex Hose & Bellows Ltd. • www.interflex.co.uk
Ludlow Eco Park • Ludlow • Shropshire • SY8 1FF • UK
Tel.: +44 (0)1584 878500 • Email: enquiries@interflex.co.uk
EPDM Twin Sphere Rubber Bellows Flexible Connectors