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TOPIC: Piping Specification

12 years 4 months ago #8729

  • sabir
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Can anyone please help me on this?

This is with reference to a Piping Specification

1. VALVE TRIM 11-13 CR - what is this “ 11-13 CR and what is CR stands for…?”

2. RATIING 150 LB – What is this LB stands for…?

3. In pipe fittings, what are these names - FULL COUPLING, RED COUPLING, BAR SCOCKET PLUG etc…?

4. FITTING 6000 LB FS SW A – 181 GR.1 – What is this 6000, FS, SW stands for…?
6000 LB THD/NPT A – 181 GR.1 – What is THD/NPT stands for…?
SCH.* CS BW A-234 GR.WPB – What is SCH.*, BW stands for…?

5. FLANGES 150 LB RF WN SCH 160 BORE – What is this BORE denotes…?

150 LB RF SO
150 LB RF WN SCH 80 BORE – What is the difference between theses two…?

6. GASKETS CAF 1/16’’ THK – What is this “ CAF 1/16’’ ”

Appreciate your prompt reply

Thank you

Sabir

1. CR = Chrome 2. LB 12 years 4 months ago #4142

  • Jop
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1. CR = Chrome

2. LB = Pounds

3. FULL COUPLING = Same size to same size
, RED COUPLING= One size reduces to a smaller size
, BAR STOCK PLUG = This is a plug that is made out of solid bar stock and is used to plug the outlet of a screwed valve


4. FS SW = Forged Steel, Socket WeldS

THD/NPT = Threaded/Nominal Pipe Size

SCH = Schedule
BW = Butt Weld

5. BORE = Inside diameter

150 LB RF SO = Slip On flange
150 LB RF WN = Weld Neck Flange

6. GASKETS CAF 1/16’’ THK – What is this “ CAF 1/16’’ ”???
Do it once and Do it Right

Is not NPT = (National 12 years 3 months ago #4143

  • Nipper
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Is not NPT = (National Pipe Thread) and designated in ANSI B1.20.1

CAF 1/16" = Compressed Asbestos Fibre Gasket 1/16" thickness

regards
nipper

Thanx 12 years 3 months ago #4144

  • sabir
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Thanx

Nipper ...I have alittle different 12 years 3 months ago #4151

  • 11echo
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Nipper ...I have alittle different take on your NPT.
what I use is as follows:
NPT = National Pipe thread Tapered
NPS= National Pipe thread Straight

...Last thing is a question, WHERE do they let you use ASB gasket material these days?

Regarding your question: "...Last thing is 12 years 3 months ago #4154

  • Jop
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Regarding your question:
"...Last thing is a question, WHERE do they let you use ASB gasket material these days?"

No doubt it is still used in many 3rd world countries where OSHA has no jurisdiction.
Do it once and Do it Right
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