FLEXIBLE CONNECTIONS EXPANSION BELLOwS DAMPERSBORDING BELLOWS AS QUALITY AND CRAFTSMANSHIP

2 Bording Bellows AS

Bording Bellows produce expansion joints for many varied applications.Here can be seen assembly of a complete unit for flue gas, Bording Bellows Type R250-IV.

expansion bellows from bording bellowsExpansion bellows from Bording Bellows can be used in duct systems for boilers, incinerators, powerstations, refineries and many other industries where combustion products and other gaseous media must be contained and moved.

Expansion joints from Bording Bellows are designed to resist even the harshest conditions including high or low temperatures.

It is therefore important for Bording Bellows to continually develop and update product selection in order to be able to offer the optimal solution to the customer.

Bording Bellows have, over the years, assembled a significant amount of knowledge regarding applica-tions and the individual problems that have had to be solved. All aspects of design, production and assem-bly are in-house functions, which means that small and large quantities can be offered at reasonable prices whilst maintaining a flexible delivery program.

Because of the efforts of industry to reduce CO2emissions, many of the gaseous processes, where

Bording Bellows products are installed, have a vastly varying temperature range.

Based on these requirements Bording Bellows have also developed Type LTF-bellows. This range isspecially designed for low temperature flue gas and vapours from aggressive chemical products. This range is explained later in the brochure.

seleCTionBefore choosing the expansion bellows it is necessary to consider several factors eg. location, temperature, pressure and required movement.

Rectangular and circular are the normal duct shapes but special configurations can be made to order. Single layer fabric would typically be used for low temperature ventilation systems. For flue gasses and applications where the temperature exceeds 250C a multi-layer bellows would be needed includingspecial weave and acid resistant PTFE layers.

The selection of the correct expansion bellows isdependent on many factors as mentioned, includ-ing the environment of the exact installation in the system. It is therefore of paramount importance that all rele vant data is available.

EXPANSION BELLOwS ONE OFFS AND LARGE SERIES

Chimney (Stack)Economiser Electro-filterAir Pre-heater Fan Scrubber

Expansion bellows

Boiler Fan Re-heater

By Pass

Quality and Craftsmanship 3Quality and Craftsmanship 3

bording bellows, THree basiC TYpesL=Air, R=Flue Gas, LTF=Wet Flue Gas.

The complete temperature range for standardconstruction is from -50C to 1100C.The table shows the individual product and thecorresponding temperature range.Pressure range is from -30kPa to +30kPa. Specialconfiguration for higher pressure can be supplied.

Type l Clean airL-types consist of one or more layers of fabricdepending on pressure and temperature.

Type r flue gasR-types also include a chemical resistant PTFE barrier.

Type lTfDesigned for use with low temperature flue gas and vapours from aggressive chemical products.

Type LTF140: Reinforced EPDM rubber.Weatherproof and resistant to chemical vapours. Resistant to flue gas with no oil content.Not suitable for mineral oil or concentrated acids. Temperature max. 120C Temperature min. -50C Maximum pressure 30kPa

Type LTF260: PTFE coated and laminated glass weave.Optimal chemical resistance. Weatherproof, strong and robust, resistant to mechanical influencesincluding torsion. Temperature max. 260C Temperature min. -60C Maximum pressure 15kPa

EXPANSION BELLOwS MADE TO ORDER

C 0 100 200 300 400 500 600 700 800 900 1.000 1.100 1.200

Flue Gas

Wet Flue Gas

R250

LTF 140 LTF 260

R350 R450 R550 R700 R1100

Air L70 L200 L350 L450 L550 L700 L1100

Temperatur

4 Bording Bellows AS

Bording Bellows have no standard dimen-sions. All items are produced to order and in cooperation with the customer.

maTerialsSystems for condensing flue gas and for flue gasdesulphurisation put special demands on the choice of materials used for expansion bellows. Fabricsuppliers are therefore chosen for their proven excel-lence within this specialised field.

Bording Bellows flexible connections for temperatures below 200C consist of a layer of special weave for air or flue gas. Above this temperature multi-layer construction will include insulation for flue gas and other systems.

Materials available include, insulation up to 1300C, special weave for up to 1000C and gastight fabrics that can withstand the most common chemicals.

All materials used are chosen with due consideration to the working environment. Dangerous materials eg. asbestos, would of course never be used.

The choice of materials is based on the actual op-erating conditions including, temperature, flowing medium, pressure, expected movement and ambient conditions.

insTallaTionFlexible Connections or expansion bellows can be installed in pipe or duct systems using a variety of attachments depending on the temperature and pres-sure conditions. Here temperature range is indicated.

Configuration I: Attachment to spigots using steel straps. Recom-mended maximum temperature 450C.

Configuration II: Attachment with angle flanges. Recommend-ed maximum temperature 450C.

Configuration IV: Attachment with parallel flanges. Suitable for the whole temperature range.

In many cases it is advantageous to use expansion joints supplied complete with steelwork for easy installation directly into the system.

example:ConfiguraTion of TYpe r700-iV

Flange reinforcementPU-coated glass weave

PTFE foil

Glass felt

Superwool

Silicone coated glass weave

High Temperature Glass Weave

Wire mesh AISI 316

Quality and Craftsmanship 5

CompleTe dampersBording Bellows offers a unique series of complete dampers for installation in air and flue gas systems. The dampers can be designed for isolating, regulating or diverting the flowing media. In addition to being used for gaseous media some dampers can be applied to the transportation of solids, eg, ash, granulate, woodchip etc.

ConsTruCTion and funCTionThe standard program contains five damper types.

produCTionAll dampers are produced as tailor-madeitems both with regards to type, dimensions, tightness require-ments and steel quality etc. Dampers can besupplied with actuators attached, control box etc. all in accordance with customer requirements andspecifications. All dampers can, in addition, besupplied complete with duct flanges, bolts andgaskets.

Type ndVQuarter-turnbutterfly valve with circular or rectan-gular blade. For isolating orregulating.

Type ndJ Multi-blade damper, circular or rectangular. For isolating and regulating. Better for regulating than type NDV.

Type ndsSlide valve, circu-lar or rectangular. Used mainly forapplications involv-ing solids (particu-late).

Type ndV-dDouble butterfly valve with purge chamber for isolat-ing. With introduc-tion of purge air at higher pressure a complete 100% isola-tion of the flowing media is achieved.

Type ndfDiverting valve,circular or rectan-gular, with one inlet and two outlets. Used for diverting flow between the two outlets or isolating either of the outlets.

DAMPERS FOR REGULATION AND ISOLATION IN AIR AND FLUE GAS SYSTEMS

6 Bording Bellows AS

p fabriCaTionHaving an in-house fabrication department and a staff of experienced and well qualified employeesenable Bording Bellows to maintain quality produc-tion combined with precise and prompt delivery. At the same time it is important to ensure that product development and design progresses hand in hand with customers individual requirements.

examples of unit and/or steelwork: Associated parts eg. Duct flanges, backing flanges

and steel liners. Complete units. Expansion bellows mounted on

flanges and supplied with transport lugs ready for installation directly into the duct system

Dampers.

IN-hOUSE FABRICATION ACCURATE AND SPEEDY DELIVERY

Quality and Craftsmanship 7

Bording Bellows fabrication department with a staff of experienced craftsmen enable greater flexibility with regards to production and delivery.

POwER STATION TO ShIPyARD AND EvERyONE IN BETwEEN

Companies, small as well as large, national as well as international have all chosen Bording Bellows as suppliers for products and services for a multitude of applications including:

Power Stations Combined Heat and Power (CHP) Stations Incineration Plants Process Plants Shipping and Off-shore Industry Cement Production Plasterboard Production

...and many many more.

SUPPLIERS TO LARGE AND SMALL

Expansion Bellows are used indiffering configurations to absorbvibrations and mechanical orthermal movement.

COMPLETE UNITS FOR CONTAINER SHIP

VARIOUS DAMPERS

BELLOWS FOR AIR OR FLUE GAS

BELLOWS FOR ExISTING INSTALLATIONS. INCINERATION, POWER GENERATION, SHIPPING

Bording Bellows AS Brovadvej 1 DK-7000 Fredericia Tel. +45 7594 1988 Fax +45 7594 0864www.bording-bellows.dk mail@bording-bellows.dk

hISTORyBording Bellows is a leading company in the produc-tion of flexible connections, expansion bellows and dampers. With more than 30 years experiencecustomers can expect the optimal solution fromBording Bellows, every time.

Bording Bellows, 100% Danish owned, family run business, exporting quality products and services throughout the world.

QUALITyThe product range is based on a combinati