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What factors go into calculating Pipe Thickness?

May 9, 2014

When calculating your pipe thickness, you want to take a few parameters into consideration:

1.) What is your Operating Temperature?
2.) What will be the Maximum Pressure?
3.) What will you be transferring inside the pipe?
4.) Does your material have any corrosion factors?
5.) What is your expected Life Span of the pipe?
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How do you pre-insulate pipe?

At Piping Technology & Products, the term pre-insulated used in the context of pipe supports, refers to the feature of pipe shoes which allows a segment of the insulation to be incorporated into the support. This means that the insulation will be installed into position at the time of the support installation and remain in tact throughout the duration of the pipe support's lifespan.

Pre-Insulated Cryogenic Pipe Support
Pre-Insulated Cryogenic Pipe Support

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How is vertical piping suspended?

The most common method for supporting vertical piping would be to first weld shear lugs into position, and then utilize a riser clamp which straddles the pipe. The load is then transferred by the riser clamp’s load bolts through hanger rod connections to our supporting structure.

22 inch diameter riser clamps
22″ Diameter Riser Clamps

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What are resting supports for piping?

Resting supports for piping could refer to a variety of supports that's main purpose is to support the pipe weight and is generally used where little or no pipe movement is anticipated.

Polyurethane Pipe Saddle Resting Support
Polyurethane Pipe Saddle Resting Support

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What is a pipe trunnion?

Pipe trunnions could refer to a variety of supports that mainly functionto support the pipe weight and generally used where little or no pipe movement is anticipated.

Insulated Trunnions for a LNG Plant
Insulated Trunnions
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What is the centerline in pipe supports?

Generally the centerline location of a pipe support is designated as the position on the supported pipe where the support midpoint intersects the pipe's central axis. The centerline of the pipe is shown on this Fig. 215 drawing below:

Centerline on Fig. 215
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What are the different types of pipe supports in refineries?

Pipe supports can be classifiedaccording to both their level of engagement (active or passive) and function(load-bearing, guiding, or anchoring).

We designate support configurationswhose primary capabilities are always engaged as active, whereas passivesupport configurations simply follow the movement of the pipe during normaloperation. However, disturbances such as severe weather, impact, abnormalvibration or seismic events, will activate these otherwise passive supports,which then function as active anchoring devices.

Pipe support functions include loadbearing, guiding, or anchoring. A load bearing support will uphold the weightof the pipe while allowing possible movement in all three dimensions. A guidewill uphold the weight of the pipe while restricting movement in up to twodimensions. An anchor will completely restrict pipe movement in all threedimensions while bearing the weight, side, and thrust loads.

Hydraulic Snubber Assemblies - Passive Supports
Hydraulic Snubber Assemblies – Passive Supports

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