what is the maximum pressure rating of a 1" NPT fitting?
351169
I think you are talking about pipe fittings, 1" NPT fitting means :- A fitting having a size of one inch with american standard threads, it does not counting the pressure rating it all depends on the wall thickness of the fitting (known by class)\nFor pressure rating of the pipe fittings try to obtain the following docs.\nASME/ANSI B16.1 - 1998 - Cast Iron Pipe Flanges and Flanged Fittings\nThis Standard for Classes 25, 125, and 250 Cast Iron Pipe Flanges and Flanged Fittings covers: \n\n(a) pressure-temperature ratings, \n(b) sizes and method of designating openings of reducing fittings, \n(c) marking, \n(d) minimum requirements for materials, \n(e) dimensions and tolerances, \n(f) bolt, nut, and gasket dimensions and \n(g) tests. \nASME/ANSI B16.3 - 1998 - Malleable Iron Threaded Fittings\nThis Standard for threaded malleable iron fittings Classes 150, and 300 provides requirements for the following: \n\n(a) pressure-temperature ratings \n(b) size and method of designating openings of reducing fittings \n(c) marking \n(d) materials \n(e) dimensions and tolerances \n(f) threading \n(g) coatings
702864
If you are talking about piping pressure classes, the 150# class that Jeffery S talked about is good for different pressures depending on the materials of construction and the design temperature of the system it is being used in. \n\nI don't have the current ANSI ratings for the steel 150# class but it is about 285 psi at 100 degrees and is derated up to about 95 psi at 750 degrees F.  Carbon steel (A105) is not recommended for sustained use above 750 degrees or so.\n\nFor steel there are other classes such as 300#, 600#, 900#, 1500# and 2500#. There are also classes for cast iron, ductile, some plastics and other materials.\n\nThe maximum working pressure is usually considered the same as the design pressure. That pressure is the maximum you should normally operate the system at. The code usually allows some brief pressure excursions above the design pressure.
465643
You are looking at plumbing products specifications.\nBasically the 1010 spec really covers only the thread sizes and the socket sizes for connections and copper tube.\nYou can go to KEMBLA Copper tubes website and they have full BS sizes for Copper tubes.. Any website showing BSP and BSPT threads will give you what you need there.\nWithin BS1010, each item (product ) has it's own standard dimensions.\nBasically you can measure socket sizes and use thread guages to ensure things are up to standard.\nThe trouble with British Standards is they are optional.. You don't need to comply with the standards but can still use product on the market.\nYou should also check out the european Pressure Vessel Directive which came out in 2001 I think.. They also have standards requirements for the UK market too... but really confusing.
565476
Valve manufacturers can provide the equivalent length of piping for their valves. The are numerous literature sources that can provide estimates for a variety of valves and fittings. \n\nThe Crane Company published one of the most recognized reference (aka Technical Report  410)
963360
A possible reason this is incorrect is when you plugged your numbers into PV=nRT, you only had 1 mmHg while the problem reads 17.5 mmHg (2333.14 Pa). Also, you are to subtract this from the barometric pressure to get your actual pressure, not multiply (according to the link mei gave). I don't remember doing problems exactly like this, but it appears otherwise you have set it up correctly. The only other thing I can suggest is to double check your units on R. You didn't list them.
864453
One BTU. Or British thermal unit
967963
Either air pressure, or fluid pressure on a fluid present in the cylinder.
1095220
Pressure Gauges and Gauge Attachments\n\nThis Standard was approved by the B40 Standards Committee and approved as an American National Standard by the American National Standards Institute on September 19, 2005.\n\nhttp://engineers.ihs.com/document/abstract/GOFSUAAAAAAAAAAA
1168897
It depends on the pressure pump and the resistance of the pipe.\nSee http://docs.bentley.com/en/HMFlowMaster/FlowMasterHelp-06-02.html
342186
You will be ok with 40:1...in fact you're probably ok with 50:1 as todays oil and gas are far superior to 1975's. I used to run my 1963 Johnson 18hp at 50:1 for years without a problem...start with 40:1 and if you foul then clean your plugs and go a little leaner. Also, I recommend either penzoil or merc oil but make sure it says tcw on the label. good luck!
329557
Try this....\n\nhttp://www.efunda.com/formulae/solid_mechanics/mat_mechanics/pressure_vessel.cfm
766762
The class of a valve refers to ANSI flange ratings. They start with 150# class,and go up thru 400#, 600#, 900#, 1500# and 2500#\n\nThe actualy pressure rating varies with material and temperature.\n\nValves typically are manufactured to have a pressure rating to match the nominal flange rating.\n \nAs an example: a steel 150# ANSI flange has a pressure rating of about 285 psi at 100 degrees F and declines to about 20 psi at 1000 degs F.  NOTE: Carbon steel is not used above about 750 to 800 degs F for extended periods of time due to changes in the carbon structure that weakens the steel.
110015
At least 3000 psi.  Recommend at least 180 degree water also.
735996
D-W Formula for,\n\nHead loss due to friction in piping network\n\n=(friction factor*length*velocity^2) divided by (2*g*inside diameter of pipe)\n\nSo, from above formulae and my practical experience ,head loss can not be greater than pipe length in a fairly designed piping network.
1055779
1 ksi = 1000 psi\n\nWhat do your points represent and how did you get that answer?\n\nLater...\nE= stress * length/deflection, or force*length/(deflection*area)\nIf the tester was zeroed, your result is non-linear - .004 deflection for the first 150# and .006 for the next 150#. Could indicate yielding - or slipping. If you're sure of your work, check the data and the setup.
1107428
low pressure steam boilers can not exceed 15 pis at normal operating level high pressure steam is any thing above 15 pis\nlow per sure used manly for heating while high pressure is used for mechanical processes like power generation no mid pressure steam
869876
.  Such a gun would be difficult or impossible to make.  Friction with the other air would cause your project stream flow to become turbulent very quickly.  Special nozzle design could improve the length over which the high pressure flow held together, but getting the flow to hold together for 20 nozzle diameters would be something which has never yet been accomplished.  That would mean that a 1 inch diameter nozzle would produce a flow which was no longer tightly focused 20 inches from the gun.  And, to produce such a high pressure with any useful amount of air, the gun would have to have a very heavy walled pressure tank.  \n.  Where air charge guns are used to some effect, the inoculation of large groups of people, like in the Army, pressurized air is supplied by a hose from an air compressor or a pressurized air tank.  This is not a very portable system.