Natural Bend Radius (NBR)

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15 years 7 months ago - 15 years 7 months ago #7387 by kannapiran.mech
Natural Bend Radius (NBR) was created by kannapiran.mech
For steel pipe (underground) NPS 30", SCH 30 What is the Natural Bend Radius? (PIG accessible)....Is there any formula to calculate this? Depending upon the fluid used in pipes NBR will vary or not? Can anybody tell me?

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15 years 7 months ago - 15 years 7 months ago #4781 by Jop
Replied by Jop on topic kannapiran What kind of pig (or
kannapiran
What kind of pig (or pigging) are you going to require?
There are lots of different pigs all with different criteria.

www.ppsa-online.com/about-pigs.php

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15 years 7 months ago - 15 years 7 months ago #4782 by kannapiran.mech
Replied by kannapiran.mech on topic FOAM PIG
To Mr.Jop,
Using Polyurethane foam pig...

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15 years 7 months ago - 15 years 7 months ago #4783 by Jop
Replied by Jop on topic Check with your "Pig" supplier
Check with your "Pig" supplier to confirm but most Foam Pigs will traverse a standard 1.5d long radius ELL.
Thus you would not need 'Bends" (for a foam Pig) unless you want them for another purpose.

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15 years 7 months ago - 15 years 7 months ago #4786 by kannapiran.mech
Replied by kannapiran.mech on topic OFF-PLOT work
To Mr.Jop,
Actually we are doing OFF-PLOT work...Crude Oil is taken from the manifold(existing) to process plant....In between pig is used....Distance is around 14km...

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