
	Where results make sense

Topic: MAPP gas

Related Topics

Methylacetylene

Gas welding

Blowtorch

Acetylene

Temperature

Chemical reaction

Combustion

Soot

Methane

Allene

Chemical equation

Carbon

Oxidation

Tradename

Chemical symbol

	MAPP GAS
		MAPP is not sensitive to shock and is nonflammable in the absence of oxygen.
		MAPP gas is not restricted to a maximum working pressure of 15 psig, as is acetylene.
		The explosive limits of MAPP gas are 3.4 percent to 10.8 percent in air or 2.5 percent to 80 percent in oxygen.
	www.tpub.com /steelworker1/34.htm (903 words)

	[No title]
		First, Mapp gas is much safer to store and handle than acetylene; cylinders are relatively insensitive to shock of blow or rough handling.
		MAPP® (C3H4) – MAPP® is a stabilized mixture of Methylacetylene and Propadiene.
		MAPP gas is a very versatile fuel gas with a flame temperature (5301° F) second only to acetylene.
	www.airgas.com /content/details.aspx?id=7000000000179 (258 words)

	Information about MAPP Gas
		MAPP gas is a combination of liquefied petroleum and Methylacetylene-Propadiene.
		The MAPP gas flame produces 2,405 BTU/cubic foot with a 5301 °F (2927 °C) flame temperature, which is much better heating than a propane-only torch.
		However, MAPP gas does not have the flexibility with oxidation and reduction flame control which you have with an oxygen and propane torch.
	www.cdvkiln.com /popmappa.htm (107 words)

	TC 9-237 Chptr 11 Oxygen Fuel Gas Welding Procedures
		MAPP gas has a high heat release in the primary flame, and a high heat release in the secondary.
		This is the neutral MAPP gas flame for welding, shown in figure 11-3.
		A low gas pressure ranging from 1-1/2 to 5 psi (10.3 to 34.5 kPa) is generally used, depending on the type of weld to be made.
	www.fortunecity.com /village/lind/247/weld_book/Ch11.htm (21607 words)

	12/08/2000 - Thomas' MAPP gas glass mold heat processes fall within the PSM hydrocarbon fuels exemption.
		MAPP gas is a flammable gas made from a mixture of methyl acetylene and propadiene.
		You provided additional technical information to OSHA which shows MAPP gas is: 1) used as a hydrocarbon fuel (flammable gas) in your MAPP gas processes; and 2) consumed on-site as a fuel for the purpose of heating glass molds.
		Please note, however, that if employers utilize your MAPP gas system as part of a process containing another highly hazardous chemical covered by the standard, the hydrocarbon fuels exemption would not be available for your MAPP gas system.
	www.osha.gov /pls/oshaweb/owadisp.show_document?p_table=INTERPRETATIONS&p_id=23485 (559 words)

	04/15/1976 - The handling, Storing and Use of MAPP Gas in Underground Construction Work.
		No. This is based on the definition of Liquefied Petroleum Gas as defined in 29 CFR 1926.155(j) and the definition of Methylacetylene-Propadiene, Stabilized, as defined in NFPA No. 51-1969.
		Is the use of MAPP gas permitted for cutting purposes in underground construction work, in tunnel work, or in cut and cover construction areas which are temporarily decked-over?
		Mapp gas may be used for purposes, such as cutting, welding, heating in relation to cutting and welding, and heat-treating operations.
	www.osha.gov /pls/oshaweb/owadisp.show_document?p_table=INTERPRETATIONS&p_id=18504 (357 words)

	MAPP Gas Torch - Self Help Forums (Site not responding. Last check: )
		I found the MAPP gas was too hot for me. It heated the fittings so fast that I overheated them, then they got that blue color and I had lots of trouble getting the solder to flow.
		Switched to a MAPP gas torch and had only one leak for the rest of the project (moved the joint before it was fully cooled) The important thing to do is pull the torch farther away as soon as solder begins to flow and clean your connections well.
		MAPP gas, when used with a swirl-combustion torch (the only type it should be used with) gives you about 2400F.
	www.selfhelpforums.com /showthread.php?p=19282 (1024 words)

	Job knowledge for welders 49: Oxyfuel cutting - process and fuel gases. (September 2000)
		Propane has a greater stoichiometric oxygen requirement than acetylene; for the maximum flame temperature in oxygen, the ratio of the volume of oxygen to fuel gas are 1.2 to 1 for acetylene and 4.3 to 1 for propane.
		MAPP gas is a mixture of various hydrocarbons, principally, methylacetylene and propadiene.
		As MAPP gas can be used at a higher pressure than acetylene, it can be used for underwater cutting in deep water as it is less likely to dissociate into its components of carbon and hydrogen which are explosive.
	www.twi.co.uk /j32k/protected/band_3/jk49.html (1084 words)

	Little Torch Helpful Tips
		It may also be used with city gas (natural gas) at a minimum pressure of 1 psi at the torch.
		Acetylene gas is lighter than air and in the event of a gas leak it will tend to dissipate in the atmosphere with any air flow, where LP gas is heavier than air and will fall to the floor and may collect in low spots thereby creating a potentially combustible hazard.
		Gas is heavier than air and may collect on floor in low spots if leaking occurs.
	www.littletorch.com /help.html (1430 words)

	MAPP gas
		MAPP gas is a stable, high energy fuel offering excellent performance for heating, brazing, soldering, metallizing, flame cutting and flame-hardening.
		MAPP gas is made by combining liquefied petroleum gas with Methylacetylene-Propadiene.
		MAPP Gas is available both in cylinders and in bulk quantities.
	www.corpbrothers.com /productcgc/mapp.htm (147 words)

	Mapp (Alan Frisbie) (Site not responding. Last check: )
		MAPP is a registered trademark for the stabilized liquefied mixture of methylacetylene (CH3:C:CH) and propadiene (CH2:C:CH2) gases.
		Oxy MAPP produces a neutral flame temperature of 5,301 degrees F (2,927 C) that yields a heat value of 517 Btu/cubic foot in the primary flame (vs 507 for acetylene) and 1,889 Btu/cubic foot in the secondary flame (vs 963 for acetylene).
		The odor of MAPP can be detected when there is as little as 100 parts per million of the gas of 1/340 of its lower explosive limit in air.
	yarchive.net /metal/mapp.html (611 words)

	Safety Precautions in Oxyfuel Welding
		Oxygen cylinders in storage shall be separated from fuel gas cylinders or combustible materials (especially oil or grease) by a minimum distance of 20.0 ft (6.1 m) or by a noncombustible barrier at least 5.0 ft (1.5 m) high and having a fire-resistance rating of at least one-half hour.
		MAPP gas is a mixture of stabilized methylacetylene and propadiene.
		MAPP gas vaporizes when the valve is opened and is difficult to detect visually.
	www.arcraftplasma.com /oxyfuelsafety.htm (2815 words)

	Mapp Gas vs Propane
		Two choices are mapp gas or propane both offer advantages and disadvantages depending on what kind of job you are doing.
		Mapp gas is made from combining liquefied petroleum and Methylacetylene-Propadine.
		Mapp gas produces a flame temperature of 5301° F (2927° C) and 2405 Btus.
	plumbing.hardwarestore.com /learning/mapp-gas-vs-propane.aspx (227 words)

	[No title]
		A neutral MAPP gas flame is 5,301° F. (2,927° C.) MAPP is actually the trade name for the gas and is owned by Dow Chemical Corp. It is known as "Razergas" in Australia and is trademarked by ELGAS.
		The gas is stored in liquid form (like propane) and is available in disposable tanks as well as in bulk quantities and is used for welding, heating, brazing, flame cutting, soldering, flame hardening and metallizing.
		At 70° F. MAPP gas tanks have a pressure of 95-97 PSIG all of which can be used (unlike the safety limit of 15 PSI for acetylene) making it good for underwater work.
	www.backyardmetalcasting.com /mappgas01.html (1041 words)

	Cooking with Gas
		MAPP gas, produced in the United States, is LPG combined with Methylacetylene-Propadiene.
		The disposable MAPP gas cylinders (453.6g) tend to vary significantly, ranging from $19.95 at Bunnings to $28.00 at glass retailers.
		MAPP gas bottles need to be secured to a table top as they will very easily tip over.
	www.chockadoo.com /Newsletter/GAS.html (599 words)

	hothead and bulk mapp gas question [Archive] - WetCanvas!
		MAPP gas and acetylene are incompatable with some materials and when exposed they form explosive compounds.
		From the MAPP gas MSDS it is incompatable with natural rubber, copper, mercury, silver and brasses containing greater than 66% copper.
		MAPP gas is a mixture of Methylacetylene and propadiene.
	www.wetcanvas.com /forums/archive/index.php/t-143430 (2376 words)

	MAPP Gas - Plumbing - BBS - BobVila.com
		I was trying to repair a hose bibb at my mother-in-law's house before and was using regular propane to heat the connection (copper pipe to hose bibb end).
		A neighbor who was a retired plumber told her I needed to use MAPP gas.
		One caution I've read elsewhere is you need to use a soldering/brazing torch tip made for MAPP gas if you need to burn the torch for extended periods - otherwise, a standard propane tip may begin to melt.
	www.bobvila.com /BBS/MAPP_Gas-Plumbing-1-T4774.html (184 words)

	MG42Detail
		The yellow tank is a disposable MAPP gas bottle, the red tank is a "holding tank" for low pressure MAPP gas, the green and silver is the smallest Oxygen tank, holding 4 cubic feet.
		I found that the MG42 is such a MAPP gas hog that the only way to keep up with the high rate of fire was to have a volume of gas a the correct operating pressure "down stream" of the pressure regulator.
		An empty gas cylinder is used as a low pressure MAPP GAS reservoir in the backpack.
	www.angelfire.com /wa/fallschirmjaegers/DetailMG42.html (2258 words)

	USGS CFC Lab
		Disadvantages include the fact that flasks are expensive ($500-600 each), only a small amount of gas is sampled, samples are often found contaminated, sample loops have to be evacuated, and the pressure of the gas in the loops should be measured.
		The advantages are that a large volume of gas is collected, several analyses can be performed, samples are less often contaminated, and samples are easier to analyze.
		Disadvantages include the small amount of gas sampled, the fact that sample loops have to be evacuated, the pressure of the gas in the loops should be measured, and a pump and other equipment is required (including oxygen, MAPP gas, and a torch).
	water.usgs.gov /lab/chlorofluorocarbons/sampling/gas (517 words)

	Tips
		It is designed to run on Mapp gas, or any brazing fuel that burns at 3600 degrees.
		Mapp gas in a one pound cylinder is available to you at most Walmarts, Home Depots, or other home improvement centers.
		Mapp (and its equivalent fuels) are safe to use and store at home.
	heritageglass.com /tips.htm (3399 words)

	Finding Mapp gas 5# Central Florida - WetCanvas!
		Almost all gas suppliers will NOT fill a propane tank (they have to have new OLD overfill valve anyway) with "brazing fuel" because they do not what the chance mixing of fuel types.
		MAPP/Propylene tanks are exempt from the new overfill valve law, because its usually a "gas technician" filling the tanks and not the "gofer" at local gas station or boat yard.
		If you desire to use one, or are forced to buy one by a gas distributor, you need one that will have a high side (tank) gauge that will measure from 0 to 300psi minimum.
	www.wetcanvas.com /forums/showthread.php?t=153345 (2370 words)

	Chapter 14: Brazing Tungsten Carbide and Ceramics for Saws, Tools, and Wear Analysis - Carbide Processors, Inc.
		Natural gas is considerably cheaper per cubic meter but you need much more gas and oxygen than you do with acetylene to do the same job.
		MAPP Gas is a natural gas with an additive.
		Mapp gas heats more slowly than acetylene, which makes it easier to control.
	www.carbideprocessors.com /Brazing/book/14.htm (341 words)

	MAPP Gas
		gas is equal to 1,500 cubic feet of acetylene.
		MAPP is not sensitive to shock and is nonflamma-
		MAPP gas vapor is stable up to 600°F and 1,100
	www.tpub.com /content/construction/14250/css/14250_78.htm (411 words)

	OFW, Oxy Fuel welding, torch Welding
		(1) OFW, Oxy Fuel welding is a group of welding processes which join metals by heating with a fuel gas flame or flares with or without the application of pressure and with or without the use of filler metal.
		OFW, Oxy Fuel welding Fuel gas and oxygen are mixed in the proper proportions in a mixing chamber which may be part of the welding tip assembly.
		These OFW, Oxy Fuel welding gas flames are excessively oxidizing at oxygen-to-fuel gas ratios high enough to produce usable heat transfer rates.
	www.weldguru.com /OFW.html (18212 words)

	Gas Welding Using High-Tech Brazing Rod - Aluminum Welding - AluminumRepair.com
		Gas welding of aluminum or other alloys is a snap with the HTS-2000 brazing rod.
		Usually, when reactive metals such as aluminum are gas welded, they need to be covered with flux in order to exclude oxygen from the molten metal, keeping oxides from forming which in turn decrease the strength of the weld.
		In addition, gas welding tanks are portable on a truck or a trailer, self sufficient and the equipment is relatively of low cost.
	www.aluminumrepair.com /gas-welding.htm (486 words)

	Elektra I Project - Test Journal Page 1
		I do also have a cylinder of MAPP gas with the same connection, and I could try that before changing everything on the supply end.
		MAPP gas is supposed to be much more powerful by volume -- it costs over three times as much as propane for the same cylinder size.
		The yellow cylinder is MAPP gas, a much more powerful fuel gas than propane, seen here surrounded by a small fire extinguisher and some protective gear.
	www.cottrillcyclodyne.com /ElektraI/ElektraI_2.html (5572 words)

	Archives
		Many years ago, I discovered that the Mapp Gas Surefire torches we sold at the welding supply next door were perfect for dispatching these annoying, germ covered pests.
		Surefire torches use trigger operated peizio ignitors to create an instant 2000+ degree F flame that is quite perfect for incinerating, or at least burning the wings off of houseflies.
		After aiming carefully and closely at the offending insect, a deft click, on-off of the flame, regardless of the surface the fly is resting upon, results in at best a dead fly, or a wounded wingless pest that will walk around the control room floor untill someone steps on him or her.
	www.dynotechresearch.com /blog/archives.asp?chosenMonth=10&chosenYear=2005 (1104 words)

Try your search on: Qwika (all wikis)