Rubber steam hoses & couplings

know-how makes the difference

STEAM, A CRITICAL UTILITY

Steam is critical in many operational processes.

However, working with steam is dangerous.

Selecting the right hose, couplings and installation method is

important to be able to work safely with steam.

Steam: a critical utility! 3

The highest quality steam hose 5

Safe use 6

Steam couplings 7

Technical specifications 10

Installation 11

Testing 11

Re-testing 11

Popcorning effect

The service life of steam hoses is drastically reduced

when the condensation is not drained from the hose

after use. This condensation or vapour penetrates the

pores of the inner wall of the hose and is retained. The

next time the hose is connected to the steam network,

the retained moisture in the inner wall expands by a

factor of 1600; because of this sudden increase in

volume, air bubbles are created in the inner wall that

blow rubber particles from the wall.

The surface of the inner wall will resemble popcorn.

Every time the hose is used, at start-up the

‘popcorning’ effect is exacerbated with particles of

rubber being ejected from the inner wall of the hose.

These particles will contaminate the steam network or

the product and block the system. The moist vapour,

which is found in the rubber of the hose, will also

force its way outwards and degrade and weaken the

steel braid of the hose.

Danger to the user

Rubber steam hoses, which are affected on the inside

by ‘popcorning’, often display no damage on the outside.

As a result, the hose poses an immediate danger

to users in its vicinity. The damaged braid, which is

invisible from the outside, can no longer withstand the

operating pressure, which causes the hose to burst. The

clamp connection can no longer grip the coupling and

the connection detaches from the hose. This can result

in serious injury or even death to operatives as well as

major damage to installations.

1x 1600 x

Expansion factor water-steam

Cracked hose affected by damaged inlays

STEAM: A CRITICAL UTILITY!

3

4

Steam graphBy displaying the combination of operating

pressure and temperature, the steam diagram

shows whether the steam is saturated or

superheated.

Saturated steam can either contain or be

free of unevaporated water particles and

consequently be either ‘wet’ or ‘dry’.

The area below the ‘saturated steam’ line

represents hot water. The area above the line

represents superheated steam. The service

life of steam hoses is shortened every time the

hose is exposed to superheated steam.

0 3,5 7,0 10,5 14,0 18 20,0

225

200

175

150

125

Manometer pressure (bar)

Tem

per

atu

re (

C°)

Superheated steam

Hot water

Saturated steam

Saturated and, to a certain extent, wet steam

has a ‘lubricating’ effect on the rubber

inner wall of the hose. However, superheated

and therefore dry steam slowly hardens the

rubber inner wall due to the process of

vulcanisation. The result is a reduction in the

service life of the rubber. Superheated steam

can sometimes be created unintentionally

when the operating pressure is suddenly

reduced, for example when a valve is suddenly

opened or at a transition from a small to a

much larger diameter pipe.

5

THE HIGHEST QUALITY STEAM HOSE

BR8 INFERNOExceeds the EN ISO 6134-2A norm

In the last 20 years, GOODALL®, our manufacturer, has carried out extensive research into rubber steam hoses. Not only have the rubber compounds used for the inner wall and outer cover been continually improved, the material and coating of the steel inserts has also received considerable attention during the development of the GOODALL® rubber steam hoses.

Practical tests and test procedures, which approximate the most extreme applications for rubber steam hoses, have taught GOODALL® much about the medium of steam and what defines the ultimate steam hose.

Even a special EPDM compound still has a porous structure that allows microscopically small water and steam particles to collect in the wall and cause the ‘popcorning’ effect. See photos on this page.

For the inner wall of the GOODALL® BR8 INFERNO steam hose, GOODALL® developed a special, impermeable rubber compound, which when extruded is extremely smooth.

Service life

Extensive tests of the GOODALL® BR8 INFERNO confirm that this hose has an extremely long service life, sometimes more than three times as long as other hoses.

The use of rubber steam hoses offers advantages over the often-used stainless steel hoses. For example, rubber steam hoses are less susceptible to buckling, have a chemically resistant outer cover, are less vulnerable to external damage and can therefore be quickly repaired and retested on site.

After a few weeks

Standard steam hoseManufacturer X

After the test phase

Appearance of popcorning

After a few weeks

INFERNO BR8 steam hose

After the test phase

After the Test phase: No sign of popcorning

SAFE USE

Steam is extremely dangerous. You should therefore

choose both a safe coupling and a safe method of

installation.

The Goodall® BR8 INFERNO hose has been specially

developed to guarantee safe use when used in

combination with one of our LMC-Couplings® for steam

applications.

All LMC-Couplings® for steam applications comply with

EN ISO 14423 and have a special, strong serrated hose

tail that has a safety collar.

The long, robust safety clamps, which also comply with

EN ISO 14423, guarantee the safety of the connection.

This connection method, where the correct hose tail is

used in combination with the appropriate safety clamp,

guarantees the user a high quality hose with a assembly

leak-free clamp connection, even after intensive use.

For Steam:Guaranteed working pressure: 18 bar at 210°C continuous.Testing pressure: 90 barBurst pressure > 180 bar

For hot water:Guaranteed working pressure: 36 bar at 95°C continuous.Testing pressure: 90 barBurst pressure > 180 bar

Couplings:

The LMC-Couplings® for steam applications can be supplied with a range of connections: threaded (male and female threads) and flange connections.

8 COMMON PROBLEMS 8 SOLUTIONS OF THE BR8 INFERNO

1. Popcorning of the internal wall

2. Blistering of the external wall

3. Short life span due to rust formation on the inlays

4. Insecurity due to no visible fault

5. Ageing as a result of hardening of the external

wall

6. Kinking of the hose

7. Static build up

8. Leakage from BOSS couplings during retesting

Superior gas-tight and extruded smooth internal wall

Pin-pricked and extruded external wall

Double braided grass & plated steel inlays

Clear spiral-shaped marking

Heat - and weather resistant exterior wall

Robust double braided inlays prevent kinks

Internal - and external wall electrically conductive

100% safe and leak-proof connection with DINBO

couplings complying with EN ISO 14423

6

7

STEAM COUPLINGS

DINBO STEAM COUPLINGS

DINBO: a fast and operationally secure steam coupling.This robust coupling is indestructible.

The large wing nut is made of strong stainless steel or galvanised steel. Its shape makes it easier for the operator, even when wearing safety gloves, to make a fast and secure connection.

Advantages

• Hose nipple that complies with EN ISO 14423 for safety clamp installation.

• Less damage at the work site compared to the use of BOSS clamps.

• Wing nut with rounded design eliminates risk of user injury.

• Spud, which is attached to the wing nut for a fast and efficient connection to various types of thread, is connected to the installation, machine or piping.

All parts are available separately

MATERIAL brassgalvanized steelstainless steel

FOR HOSE 1/2”3/4”1”

SCREW THREADSPUD

EN 10226-1/DIN 2999, BSPTANSI B.1.20.1, NPT

SUMMARY

The BR8 INFERNO hose is fitted with LMC-Couplings®, a comprehensive and innovative range of products that includes the unique DINBO couplings.

All the steam couplings and safety clamps comply with EN ISO 14423 and have a special serrated hose tail that has a safety collar. The hose connection is guaranteed for the maximum operating pressure of 160 bar at 20°C or 18 bar at 210°C.

HOSE TAIL WITH FEMALE THREAD

Heavy flat sealed coupling, with long hose nozzle in compliance with EN ISO 14423

MATERIAL brassgalvanized steelstainless steel

FOR HOSE 1/2”3/4”1”

SCREW THREAD EN ISO 228-1, BSP

Novatec Premium II with Kevlar

1.1/4”1.1/2”2”

STEAM COUPLINGS

THREAD SEAL

8

HOSE NIPPLE WITH MALE THREAD Heavy-duty tapered male thread coupling with long hose nipple that complies with EN ISO 14423

MATERIAL brassgalavised steelstainless steel

FOR HOSE 1/2”3/4”1”

SCREW THREAD EN 10226-1/DIN 2999, BSPTANSI B.1.20.1, NPT

1.1/4”1.1/2”2”

FLANGE COUPLINGS

Hose couplings with fixed or loose flange with long hose tail in compliance with EN ISO 14423

MATERIAL galvanized steelstainless steel

VERSION fixed flangeloose flange

DRILLING PN10/16PN40

STEAM COUPLINGS

ASA 150 lbsASA 300 lbs

SAFETY CLAMP

Steam safety clamp, in compliance with EN ISO 14423

MATERIAL brass forgedstainless steel

BOUTENMOEREN

DIN 912 / EN ISO 4762 DIN 934 / EN ISO 4032

9

FOR HOSE 1/2”3/4”1”

1.1/4”1.1/2”2”

WORK PRESSURE PN 18 by 210°CPN 160 by 20°C

TECHNICAL SPECIFICATIONS

10

GOODALL® BR8 INFERNO

The GOODALL® BR8 INFERNO distinguishes itself from every other steam hose on the market. Its longer service life ensures fewer failures, greater up time, but in particular, the safe use of the hose by the user within his/her environment. The hose can be used for both steam and hot water.

Exceeds EN ISO 6134-2A

FEATURES

• Superior gastight inner wall

• Homogenous and seamless extruded inner wall

• Double braided brass coated steel inserts

• High adhesion of inserts to the inner wall and outer

cover

• 100% Electrically conductive T/Ω

• Outer cover extruded and ‘pin-pricked’

• Flexible

• Buckle resistant

• Clear spiral markings

• Long service life

• Safe

Internal diameter Wall thickness Work pres. Radius Weight Roll length mm mm bar mm kg/m m

13 6,0 18 65 0,61 60 19 7,0 18 102 0,81 60 25 7,5 18 127 1,27 60 32 8,0 18 153 1,56 40 38 8,0 18 178 1,83 40 50 9,0 18 254 2,91 40 63 9,0 18 330 4,00 40 75 9,0 18 406 4,88 40

* Available from 2014

innovati on

****

Every GOODALL® BR8 INFERNO steam hose fitted with LMC-Couplings® for steam applications is tested in-house according to EN ISO 6134-2A at a test pressure of 90 bar (5x the maximum operating pressure). On request, the test certificates are supplied with the hose.

TESTING

INSTALLATION AND TESTING

Our professional production staff fit the correct LMC-Couplings® for steam applications to every GOODALL® BR8 INFERNO steam hose together with the correct safety clamps. They employ the latest technical developments and use the latest installation techniques. Years of experience and detailed installation procedures guarantee this quality process.

INSTALLATION

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Steam hoses must be pressure tested every six months at 90 bar to comply with EN ISO 6134-2A and minimise the dangers posed by invisible internal damage to hose or fittings. External visual inspection alone is not sufficient.

ERIKS Hose Technology offer a comprehensive on-site inspection and testing service including hydrostatic pressure testing. Call us to discuss your needs.

RETESTING

ERIKS UK is a market leading supplier of industrial products and services with a network of services centres across the UK and 25 fully equipped repair workshops supported by 9 Core Competence Centres.

ERIKS Flow Technology is a division of ERIKS UK which comprises the Core Competence Centres for gaskets, hoses and valves focussed on supplying a range of products from ERIKS own-brands and leading manufacturers. The combined product group is applicable across multiple markets and applications allowing ERIKS UK to offer a range of solutions either as a package or individual components.

ERIKS Hose Technology Core Competence Centre (formerly FHS) is based in Slough and Northampton stocking a wide range of hoses, ducting and fi ttings that can be made up to the customer’s specifi c requirements. Customers can also benefi t from a hose testing and management programme and asset register as well as refurbishment facilities. Markets include Chemical, Petrochemical, Pharmaceutical, Marine, Water and Food industries.

HOSES

ERIKS Hose Technology692-693 Stirling RoadSlough Industrial EstateSloughSL1 4ST

T: 01753 570863F: 01753 824141E: eht-sales@eriks.co.uk

VALVES

Econosto UKWhiteacresWhetstoneLeicesterLE8 6ZG

T: 0116 272 7300F: 0116 272 7345E: sales@econosto.uk.com

GASKETS

ERIKS Gasket TechnologyMcGuiness WorksMount Osborne Industrial ParkBarnsley S71 1HH

T: 01226 329200F: 01226 204558E: sales@eriksgaskets.co.uk

www.eriks.co.ukwww.eriks-hose-technology.com