Ige Presentation
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Transcript of Ige Presentation
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
NEWSl. Number