Industrial Gas Equipment

With operations in a large number of countries, ESAB is the world’s largest producer of welding consumables and equipment having 100 years of related experience.

ESAB a name of trust and reliability

Our customers are for example found in the transport and off-road vehicle industry, the offshore, shipbuilding, power, process and construction industries. ESAB has a strong position – supported by extensive distribution networks – in all of its major markets.

Our business areas includes:Welding and cutting equipmentWelding consumablesWelding automationCutting system

The Esab G

roup Presentation 1998

1:4

WorldwideGroup headquarters Sales companies Manufacturing units

World wide Presence

RegulatorsBlowpipesFlash Back ArrestorsTips/NozzlesSmall Cutting M/c

General assembly drawing for gas equipment handling

The major components having danger associated with are,

(I) Regulator

(II)Tips/Nozzles

(III)Blowpipe

(IV)Accessories

Industrial Gas regulator

A Gas regulator is a mechanical device which reduces the source gas pressure to a constant working pressure regardless the variations at source

Regulators are basically of two types

(I) Single stage regulator

(II) Double stage regulator

230

10

t

pbar

40

Two step decreaseSingle step decrease

230

10

t

pbar

There are three basic operating components in regulators:

(I) Spring acts as a Loading mechanism (II)Diaphragm acts as a Sensing element

(III)Valve acts as a control element

Dangers associated with of a pressure Regulator

Forged body regulator Cast body regulator having blowhole

Diffusion resistant SS body for special application regulator

High quality leak proof Wika Bourdon tube gauge

Valve seat provided in the main valve is soft enough to seal leak and strong enough to withstand pressure

SS Diaphragm at 1 st stage of regulator

Pressure relief valve

Neoprene Diaphragm at 2 nd stage

What is Cutting????

The cutting process Basically Constitutes of the following three steps

(III)The oxygen jet blows away the slag enabling the jet to pierce through the material and continue to cut through the material.

(II)A jet of pure oxygen is then directed into the preheated area instigating a vigorous exothermic chemical reaction between the oxygen and the metal to form iron oxide or slag.

(I)Mixture of oxygen and the fuel gas used to preheat the metal to its 'ignition' temperature which, for steel, is 700°C - 900°C (bright red heat) but well below its melting point.

Dangers associated with welding , heating & cutting Blowpipe

A blowpipe is a mechanical device which provides a oxy fuel flame for welding,heating and cutting purpose.

Mixer

Cutting Blowpipes are mainly of two types (I) Injector mixing ` (II) Nozzle mixing

Cutting Oxygen

Fuel Gas

Outer Shield

Cutting Oxygen

Fuel Gas

A-Type Injector Mixing Nozzle

ANM-Type NM Nozzle PNM Nozzle

Swaged Long parallel Nozzle

Hard Drawn Tellurium Copper

Diverged Nozzle resulting in kerf loss

Less Gas consumption Gas consumption and less kerf loss in and less kerf loss in case of ESAB nozzlecase of ESAB nozzle

99.7% Copper, 0.008% phosphorus

0.55% tellurium

Solid Bar Stock Machining for improved performance

CNC machining used for Nozzle

Reinforced Hose having increased life

Tube : BLACK SYNTHETIC ELASTOMER

Reinforcement : HIGH TENSILE TEXTILE CORDS

Cover : SYNTHETIC POLYMER`

Inner Tube

Inner reinforcement

Outer Tube

Hoses are manufactured according to IS specifications from a ISO 9001 certified factory

The hoses are(I)light in weight(II)Highly Flexible(III)Excellent Electrical resistant

Flashback a Catastrophe

The above is the File photograph shown by TWI of a damaged factory building completely devastated due to flashback in oxy-acetylene flame the loss is to the tune of £ 1 million

The gas cylinders were not protected by FBAsThe correct lighting up procedure was not followed and the gas hoses were not purged properly before use. The acetylene gas was not at correct pressureAcetylene is a highly flammable gas unlike other gases it is quite unstable and it can explosively decompose into it’s constituent elements like carbon and H2.The cylinder design for acetylene gas is completely different as compared to others inside

What happens Internally•Decomposition of acetylene is triggered mainly due to involved in fire,flashback or scorched flames from the blowpipe.•The decomposition is more aggravated due to damaged porous metal caused due to flashback and mishandling of cylinders.•The hose pressure in case of acetylene should not exceed 0.62 bar•Before lighting the flame the hose should be properly purged which eventually moves out any kind of flammable gas mixture inside the hose.•Use the correct gas pressure and recommended nozzle according to your application.

Fit flash Back Arrestor both on blowpipe and Cylinder end to make the working environment a much safer place to workMaintain nozzles in good condition to avoid any flashback due to overheat or blocked nozzles.Always use ESAB make FR 18 and Protex model both at torch & cylinder end to prevent it from flash back.

Sintered filter and NRV for restricting the back fire

A flash back arrestor

Rose metal melts in case of any harsh flashback

The POP UP return mechanism a indication for showing a flashback

Sintered material incase of FR18 torch mounted FBA

Can Check Valves be substitute of FBA???

Incase of NRV there is no sintered element which is essential to prevent any back fire

Proper pressure tight sealing makes flash back arrestor leak proof as compared to NRV

Flash back arrestor saves the user from the hazards of hose fire It’s balanced spring mechanism prevents torch from starvation

due to low gas pressure

Check ValveFBA

ISO 9000:14000 certified factory located at taratala ,kolkata ensures strict quality assurance.

Modern CNC machine manufacturing system ensures high precision and accuracy level for gas equipment

Batch testing done at quality lab to ensure high level of quality adherence.

Cyclic test is done for regulators for 10 hr. to check the material strength Safety devices like FBA are subjected to leak test , back flow test and

NRV test to ensure your safety

What are we doing to ensure your safety

All the gas equipment materials are subjected to acid pickling which gives it shiny surface finish without any defect

Regulators and blowpipes are subjected to high flow test of compressed air to ensure no leakage

In case of three seat nozzles checks with profile projector is carried out to ensure proper grove angle.

The regulator used for very specialized application of helium gas are subjected to helium leak test.

The seat valves used are checked through suspended acid test

Your Safety our concern

Our Brands Catering to your demandsIn case of gas equipment related products ESAB has proved it’s Superity over the competitors through high quality products

Special Segment regulators-ESAB ISG and M600 series regulator caters to this segment where high pressure and high purity of gas is required application wise these are used for laboratory,nitrogen filling,oxygen lancing,refrigeration purpose etc.

Single stage Regulators - ESAB IDA,IOX series forged brass body regulators caters to this segment of regulator having application areas like gas welding LPG cutting and brazing etc.

Double Stage Regulator- ESAB Dura series forged brass body regulator caters to this segment which includes application areas like welding , cutting etc.

Blowpipes-NM250,Cutogen-5 are the most popular and preferred brand in the segment of cutting , Saffire 2 HP Model O in the segment of welding HD heating incase of heating torches.Application wise these are used extensively in case of fabrication,steel industries and other related industries extensively.

A name you can trust upon

Accessories- Dura Hose and ESAB A,P,PNM,ANM-Type nozzles are the brands in the segment of accessories having durability and sturdiness.

FBA-Protex RO and RA are the reliable brand incase of cylinder end FBA and FR18 is the brand incase of torch end FBA.

Buy genuine be safe• In view of large scale product sailing and high reliability

factor some people has started giving spurious products in the market to tarnish our image. So pl. check for the below mentioned tips before buying any gas equipment related products.

• Check Points

Harp on getting the Test and warranty certificate for the material purchased from the dealer

Don’t accept product incase the packaging looks faint and discolored or in a damaged condition

In case of any doubt pl. contact our concerned sales people

Always purchase from authorised dealers

Always look for the hologram on the product as a mark of genuineness

The symbol of genuineness

ESAB INDIA LIMITED

Equipment division , P-41,Taratala Road, kolkata - 700 088

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