piping systems | valves | construction and operation materials | intro to welding | inspection of welds |
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What is B31.1 and B31.3
ASME piping codes are filed under this number
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What is teflon
valve packing often made of this material used to coast frying pans
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What is bearing
babbits are primarily used in the construction of this
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What is prevent leakage
a seal weld is not designed for strength, its only purpose is to do this
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What is not cleaning weld between passes
a slag inclusion occurs because of this oversight
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What is Stainless steel
van stone flanges are generally constructed from this material or other expensive metals
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What is a pressure reducing valve
this variety of valve has a by-pass, isolating valves before and after, and a pressure gauge with a safety valve on the low pressure side
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What is cast iron
steel that has a carbon content greater than 2% is considered this
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What is SMAW
stick welding is under this asme designation
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What is a lamination
some indication such as this are difficult to find while using a penetrameter
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What is 1650
refractory fibre's temperature limit reaches temperatures as high as this
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What is a regulator
a strainer is generally installed upstream of this device
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What is brinell hardness test
this type of test uses a 10 mm tungsten carbide ball pressed with a 3000 kg load for ferrous materials. the indent created by the ball is measured.
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What is C2H2
this is the chemical name for acetylene
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What is the piezoelectric effect
a transducer uses this effect to vibrate a quartz wafer
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What is a 35 degree angle
the angle of bevel in a pipe to be welded
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What is butterfly valve
these valves have two body style: lug and wafer
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What is high pH refractory
BOF stands for basic oxygen furnace, it is called basic for the reason that it has these qualities in the furnace lining
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What is a down hand
a code 4 welding position indicates that the weld is only to be done in this position
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What is a pennie
another name for penatremeter
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What is DN 50 (NPS 2)
screwed connections are generally used for pipes sizes less than this
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What is 69 000 kPa (nice)
ball valves can be manufactured in sizes 3 to 1000 mm and can be rated up to this pressure
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What is 12% chromium
steel is considered stainless if it has this percentage or higher of this element
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What is DCEP or straight polarity
welding with a DC power supply set up this way causes 2/3 of the heat to transfer into the parent metal.
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What is couplant
a fluid used to permit the ultrasound signal to exit the transducer and enter the specimen
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